Pull fix-cpu-possible-map into release branch
diff --git a/Documentation/fujitsu/frv/kernel-ABI.txt b/Documentation/fujitsu/frv/kernel-ABI.txt
new file mode 100644
index 0000000..0ed9b0a7
--- /dev/null
+++ b/Documentation/fujitsu/frv/kernel-ABI.txt
@@ -0,0 +1,234 @@
+ =================================
+ INTERNAL KERNEL ABI FOR FR-V ARCH
+ =================================
+
+The internal FRV kernel ABI is not quite the same as the userspace ABI. A number of the registers
+are used for special purposed, and the ABI is not consistent between modules vs core, and MMU vs
+no-MMU.
+
+This partly stems from the fact that FRV CPUs do not have a separate supervisor stack pointer, and
+most of them do not have any scratch registers, thus requiring at least one general purpose
+register to be clobbered in such an event. Also, within the kernel core, it is possible to simply
+jump or call directly between functions using a relative offset. This cannot be extended to modules
+for the displacement is likely to be too far. Thus in modules the address of a function to call
+must be calculated in a register and then used, requiring two extra instructions.
+
+This document has the following sections:
+
+ (*) System call register ABI
+ (*) CPU operating modes
+ (*) Internal kernel-mode register ABI
+ (*) Internal debug-mode register ABI
+ (*) Virtual interrupt handling
+
+
+========================
+SYSTEM CALL REGISTER ABI
+========================
+
+When a system call is made, the following registers are effective:
+
+ REGISTERS CALL RETURN
+ =============== ======================= =======================
+ GR7 System call number Preserved
+ GR8 Syscall arg #1 Return value
+ GR9-GR13 Syscall arg #2-6 Preserved
+
+
+===================
+CPU OPERATING MODES
+===================
+
+The FR-V CPU has three basic operating modes. In order of increasing capability:
+
+ (1) User mode.
+
+ Basic userspace running mode.
+
+ (2) Kernel mode.
+
+ Normal kernel mode. There are many additional control registers available that may be
+ accessed in this mode, in addition to all the stuff available to user mode. This has two
+ submodes:
+
+ (a) Exceptions enabled (PSR.T == 1).
+
+ Exceptions will invoke the appropriate normal kernel mode handler. On entry to the
+ handler, the PSR.T bit will be cleared.
+
+ (b) Exceptions disabled (PSR.T == 0).
+
+ No exceptions or interrupts may happen. Any mandatory exceptions will cause the CPU to
+ halt unless the CPU is told to jump into debug mode instead.
+
+ (3) Debug mode.
+
+ No exceptions may happen in this mode. Memory protection and management exceptions will be
+ flagged for later consideration, but the exception handler won't be invoked. Debugging traps
+ such as hardware breakpoints and watchpoints will be ignored. This mode is entered only by
+ debugging events obtained from the other two modes.
+
+ All kernel mode registers may be accessed, plus a few extra debugging specific registers.
+
+
+=================================
+INTERNAL KERNEL-MODE REGISTER ABI
+=================================
+
+There are a number of permanent register assignments that are set up by entry.S in the exception
+prologue. Note that there is a complete set of exception prologues for each of user->kernel
+transition and kernel->kernel transition. There are also user->debug and kernel->debug mode
+transition prologues.
+
+
+ REGISTER FLAVOUR USE
+ =============== ======= ====================================================
+ GR1 Supervisor stack pointer
+ GR15 Current thread info pointer
+ GR16 GP-Rel base register for small data
+ GR28 Current exception frame pointer (__frame)
+ GR29 Current task pointer (current)
+ GR30 Destroyed by kernel mode entry
+ GR31 NOMMU Destroyed by debug mode entry
+ GR31 MMU Destroyed by TLB miss kernel mode entry
+ CCR.ICC2 Virtual interrupt disablement tracking
+ CCCR.CC3 Cleared by exception prologue (atomic op emulation)
+ SCR0 MMU See mmu-layout.txt.
+ SCR1 MMU See mmu-layout.txt.
+ SCR2 MMU Save for EAR0 (destroyed by icache insns in debug mode)
+ SCR3 MMU Save for GR31 during debug exceptions
+ DAMR/IAMR NOMMU Fixed memory protection layout.
+ DAMR/IAMR MMU See mmu-layout.txt.
+
+
+Certain registers are also used or modified across function calls:
+
+ REGISTER CALL RETURN
+ =============== =============================== ===============================
+ GR0 Fixed Zero -
+ GR2 Function call frame pointer
+ GR3 Special Preserved
+ GR3-GR7 - Clobbered
+ GR8 Function call arg #1 Return value (or clobbered)
+ GR9 Function call arg #2 Return value MSW (or clobbered)
+ GR10-GR13 Function call arg #3-#6 Clobbered
+ GR14 - Clobbered
+ GR15-GR16 Special Preserved
+ GR17-GR27 - Preserved
+ GR28-GR31 Special Only accessed explicitly
+ LR Return address after CALL Clobbered
+ CCR/CCCR - Mostly Clobbered
+
+
+================================
+INTERNAL DEBUG-MODE REGISTER ABI
+================================
+
+This is the same as the kernel-mode register ABI for functions calls. The difference is that in
+debug-mode there's a different stack and a different exception frame. Almost all the global
+registers from kernel-mode (including the stack pointer) may be changed.
+
+ REGISTER FLAVOUR USE
+ =============== ======= ====================================================
+ GR1 Debug stack pointer
+ GR16 GP-Rel base register for small data
+ GR31 Current debug exception frame pointer (__debug_frame)
+ SCR3 MMU Saved value of GR31
+
+
+Note that debug mode is able to interfere with the kernel's emulated atomic ops, so it must be
+exceedingly careful not to do any that would interact with the main kernel in this regard. Hence
+the debug mode code (gdbstub) is almost completely self-contained. The only external code used is
+the sprintf family of functions.
+
+Futhermore, break.S is so complicated because single-step mode does not switch off on entry to an
+exception. That means unless manually disabled, single-stepping will blithely go on stepping into
+things like interrupts. See gdbstub.txt for more information.
+
+
+==========================
+VIRTUAL INTERRUPT HANDLING
+==========================
+
+Because accesses to the PSR is so slow, and to disable interrupts we have to access it twice (once
+to read and once to write), we don't actually disable interrupts at all if we don't have to. What
+we do instead is use the ICC2 condition code flags to note virtual disablement, such that if we
+then do take an interrupt, we note the flag, really disable interrupts, set another flag and resume
+execution at the point the interrupt happened. Setting condition flags as a side effect of an
+arithmetic or logical instruction is really fast. This use of the ICC2 only occurs within the
+kernel - it does not affect userspace.
+
+The flags we use are:
+
+ (*) CCR.ICC2.Z [Zero flag]
+
+ Set to virtually disable interrupts, clear when interrupts are virtually enabled. Can be
+ modified by logical instructions without affecting the Carry flag.
+
+ (*) CCR.ICC2.C [Carry flag]
+
+ Clear to indicate hardware interrupts are really disabled, set otherwise.
+
+
+What happens is this:
+
+ (1) Normal kernel-mode operation.
+
+ ICC2.Z is 0, ICC2.C is 1.
+
+ (2) An interrupt occurs. The exception prologue examines ICC2.Z and determines that nothing needs
+ doing. This is done simply with an unlikely BEQ instruction.
+
+ (3) The interrupts are disabled (local_irq_disable)
+
+ ICC2.Z is set to 1.
+
+ (4) If interrupts were then re-enabled (local_irq_enable):
+
+ ICC2.Z would be set to 0.
+
+ A TIHI #2 instruction (trap #2 if condition HI - Z==0 && C==0) would be used to trap if
+ interrupts were now virtually enabled, but physically disabled - which they're not, so the
+ trap isn't taken. The kernel would then be back to state (1).
+
+ (5) An interrupt occurs. The exception prologue examines ICC2.Z and determines that the interrupt
+ shouldn't actually have happened. It jumps aside, and there disabled interrupts by setting
+ PSR.PIL to 14 and then it clears ICC2.C.
+
+ (6) If interrupts were then saved and disabled again (local_irq_save):
+
+ ICC2.Z would be shifted into the save variable and masked off (giving a 1).
+
+ ICC2.Z would then be set to 1 (thus unchanged), and ICC2.C would be unaffected (ie: 0).
+
+ (7) If interrupts were then restored from state (6) (local_irq_restore):
+
+ ICC2.Z would be set to indicate the result of XOR'ing the saved value (ie: 1) with 1, which
+ gives a result of 0 - thus leaving ICC2.Z set.
+
+ ICC2.C would remain unaffected (ie: 0).
+
+ A TIHI #2 instruction would be used to again assay the current state, but this would do
+ nothing as Z==1.
+
+ (8) If interrupts were then enabled (local_irq_enable):
+
+ ICC2.Z would be cleared. ICC2.C would be left unaffected. Both flags would now be 0.
+
+ A TIHI #2 instruction again issued to assay the current state would then trap as both Z==0
+ [interrupts virtually enabled] and C==0 [interrupts really disabled] would then be true.
+
+ (9) The trap #2 handler would simply enable hardware interrupts (set PSR.PIL to 0), set ICC2.C to
+ 1 and return.
+
+(10) Immediately upon returning, the pending interrupt would be taken.
+
+(11) The interrupt handler would take the path of actually processing the interrupt (ICC2.Z is
+ clear, BEQ fails as per step (2)).
+
+(12) The interrupt handler would then set ICC2.C to 1 since hardware interrupts are definitely
+ enabled - or else the kernel wouldn't be here.
+
+(13) On return from the interrupt handler, things would be back to state (1).
+
+This trap (#2) is only available in kernel mode. In user mode it will result in SIGILL.
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 0ea5a0c..2c3b1ea 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -136,17 +136,20 @@
architectures:
- i386
-- x86_64 (AMD-64, E64MT)
+- x86_64 (AMD-64, EM64T)
- ppc64
-- ia64 (Support for probes on certain instruction types is still in progress.)
+- ia64 (Does not support probes on instruction slot1.)
- sparc64 (Return probes not yet implemented.)
3. Configuring Kprobes
When configuring the kernel using make menuconfig/xconfig/oldconfig,
-ensure that CONFIG_KPROBES is set to "y". Under "Kernel hacking",
-look for "Kprobes". You may have to enable "Kernel debugging"
-(CONFIG_DEBUG_KERNEL) before you can enable Kprobes.
+ensure that CONFIG_KPROBES is set to "y". Under "Instrumentation
+Support", look for "Kprobes".
+
+So that you can load and unload Kprobes-based instrumentation modules,
+make sure "Loadable module support" (CONFIG_MODULES) and "Module
+unloading" (CONFIG_MODULE_UNLOAD) are set to "y".
You may also want to ensure that CONFIG_KALLSYMS and perhaps even
CONFIG_KALLSYMS_ALL are set to "y", since kallsyms_lookup_name()
@@ -262,18 +265,18 @@
5. Kprobes Features and Limitations
-As of Linux v2.6.12, Kprobes allows multiple probes at the same
-address. Currently, however, there cannot be multiple jprobes on
-the same function at the same time.
+Kprobes allows multiple probes at the same address. Currently,
+however, there cannot be multiple jprobes on the same function at
+the same time.
In general, you can install a probe anywhere in the kernel.
In particular, you can probe interrupt handlers. Known exceptions
are discussed in this section.
-For obvious reasons, it's a bad idea to install a probe in
-the code that implements Kprobes (mostly kernel/kprobes.c and
-arch/*/kernel/kprobes.c). A patch in the v2.6.13 timeframe instructs
-Kprobes to reject such requests.
+The register_*probe functions will return -EINVAL if you attempt
+to install a probe in the code that implements Kprobes (mostly
+kernel/kprobes.c and arch/*/kernel/kprobes.c, but also functions such
+as do_page_fault and notifier_call_chain).
If you install a probe in an inline-able function, Kprobes makes
no attempt to chase down all inline instances of the function and
@@ -290,18 +293,14 @@
Kprobes makes no attempt to prevent probe handlers from stepping on
each other -- e.g., probing printk() and then calling printk() from a
-probe handler. As of Linux v2.6.12, if a probe handler hits a probe,
-that second probe's handlers won't be run in that instance.
+probe handler. If a probe handler hits a probe, that second probe's
+handlers won't be run in that instance, and the kprobe.nmissed member
+of the second probe will be incremented.
-In Linux v2.6.12 and previous versions, Kprobes' data structures are
-protected by a single lock that is held during probe registration and
-unregistration and while handlers are run. Thus, no two handlers
-can run simultaneously. To improve scalability on SMP systems,
-this restriction will probably be removed soon, in which case
-multiple handlers (or multiple instances of the same handler) may
-run concurrently on different CPUs. Code your handlers accordingly.
+As of Linux v2.6.15-rc1, multiple handlers (or multiple instances of
+the same handler) may run concurrently on different CPUs.
-Kprobes does not use semaphores or allocate memory except during
+Kprobes does not use mutexes or allocate memory except during
registration and unregistration.
Probe handlers are run with preemption disabled. Depending on the
@@ -316,11 +315,18 @@
(As far as we can tell, __builtin_return_address() is used only
for instrumentation and error reporting.)
-If the number of times a function is called does not match the
-number of times it returns, registering a return probe on that
-function may produce undesirable results. We have the do_exit()
-and do_execve() cases covered. do_fork() is not an issue. We're
-unaware of other specific cases where this could be a problem.
+If the number of times a function is called does not match the number
+of times it returns, registering a return probe on that function may
+produce undesirable results. We have the do_exit() case covered.
+do_execve() and do_fork() are not an issue. We're unaware of other
+specific cases where this could be a problem.
+
+If, upon entry to or exit from a function, the CPU is running on
+a stack other than that of the current task, registering a return
+probe on that function may produce undesirable results. For this
+reason, Kprobes doesn't support return probes (or kprobes or jprobes)
+on the x86_64 version of __switch_to(); the registration functions
+return -EINVAL.
6. Probe Overhead
@@ -347,14 +353,12 @@
7. TODO
-a. SystemTap (http://sourceware.org/systemtap): Work in progress
-to provide a simplified programming interface for probe-based
-instrumentation.
-b. Improved SMP scalability: Currently, work is in progress to handle
-multiple kprobes in parallel.
-c. Kernel return probes for sparc64.
-d. Support for other architectures.
-e. User-space probes.
+a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
+programming interface for probe-based instrumentation. Try it out.
+b. Kernel return probes for sparc64.
+c. Support for other architectures.
+d. User-space probes.
+e. Watchpoint probes (which fire on data references).
8. Kprobes Example
@@ -411,8 +415,7 @@
printk("Couldn't find %s to plant kprobe\n", "do_fork");
return -1;
}
- ret = register_kprobe(&kp);
- if (ret < 0) {
+ if ((ret = register_kprobe(&kp) < 0)) {
printk("register_kprobe failed, returned %d\n", ret);
return -1;
}
diff --git a/Documentation/mips/AU1xxx_IDE.README b/Documentation/mips/AU1xxx_IDE.README
index a7e4c4e..afb31c1 100644
--- a/Documentation/mips/AU1xxx_IDE.README
+++ b/Documentation/mips/AU1xxx_IDE.README
@@ -95,11 +95,13 @@
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDE_AU1XXX=y
CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y
-CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON=y
CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ=128
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y
+Also define 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to enable
+the burst support on DBDMA controller.
+
If the used system need the USB support enable the following kernel configs for
high IDE to USB throughput.
@@ -115,6 +117,8 @@
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y
+Also undefine 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to
+disable the burst support on DBDMA controller.
ADD NEW HARD DISC TO WHITE OR BLACK LIST
----------------------------------------
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 60a617a..e083837 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -25,6 +25,10 @@
bool
default n
+config TIME_LOW_RES
+ bool
+ default y
+
mainmenu "Fujitsu FR-V Kernel Configuration"
source "init/Kconfig"
diff --git a/arch/frv/Makefile b/arch/frv/Makefile
index 90c0fb8..d163747d 100644
--- a/arch/frv/Makefile
+++ b/arch/frv/Makefile
@@ -81,7 +81,7 @@
# - reserve CC3 for use with atomic ops
# - all the extra registers are dealt with only at context switch time
CFLAGS += -mno-fdpic -mgpr-32 -msoft-float -mno-media
-CFLAGS += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15
+CFLAGS += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15 -ffixed-icc2
AFLAGS += -mno-fdpic
ASFLAGS += -mno-fdpic
diff --git a/arch/frv/kernel/break.S b/arch/frv/kernel/break.S
index 33233dc..687c48d 100644
--- a/arch/frv/kernel/break.S
+++ b/arch/frv/kernel/break.S
@@ -200,12 +200,20 @@
movsg bpcsr,gr2
sethi.p %hi(__entry_kernel_external_interrupt),gr3
setlo %lo(__entry_kernel_external_interrupt),gr3
- subcc gr2,gr3,gr0,icc0
+ subcc.p gr2,gr3,gr0,icc0
+ sethi %hi(__entry_uspace_external_interrupt),gr3
+ setlo.p %lo(__entry_uspace_external_interrupt),gr3
beq icc0,#2,__break_step_kernel_external_interrupt
- sethi.p %hi(__entry_uspace_external_interrupt),gr3
- setlo %lo(__entry_uspace_external_interrupt),gr3
- subcc gr2,gr3,gr0,icc0
+ subcc.p gr2,gr3,gr0,icc0
+ sethi %hi(__entry_kernel_external_interrupt_virtually_disabled),gr3
+ setlo.p %lo(__entry_kernel_external_interrupt_virtually_disabled),gr3
beq icc0,#2,__break_step_uspace_external_interrupt
+ subcc.p gr2,gr3,gr0,icc0
+ sethi %hi(__entry_kernel_external_interrupt_virtual_reenable),gr3
+ setlo.p %lo(__entry_kernel_external_interrupt_virtual_reenable),gr3
+ beq icc0,#2,__break_step_kernel_external_interrupt_virtually_disabled
+ subcc gr2,gr3,gr0,icc0
+ beq icc0,#2,__break_step_kernel_external_interrupt_virtual_reenable
LEDS 0x2007,gr2
@@ -254,6 +262,9 @@
# step through an external interrupt from kernel mode
.globl __break_step_kernel_external_interrupt
__break_step_kernel_external_interrupt:
+ # deal with virtual interrupt disablement
+ beq icc2,#0,__break_step_kernel_external_interrupt_virtually_disabled
+
sethi.p %hi(__entry_kernel_external_interrupt_reentry),gr3
setlo %lo(__entry_kernel_external_interrupt_reentry),gr3
@@ -294,6 +305,64 @@
#endif
rett #1
+# we single-stepped into an interrupt handler whilst interrupts were merely virtually disabled
+# need to really disable interrupts, set flag, fix up and return
+__break_step_kernel_external_interrupt_virtually_disabled:
+ movsg psr,gr2
+ andi gr2,#~PSR_PIL,gr2
+ ori gr2,#PSR_PIL_14,gr2 /* debugging interrupts only */
+ movgs gr2,psr
+
+ ldi @(gr31,#REG_CCR),gr3
+ movgs gr3,ccr
+ subcc.p gr0,gr0,gr0,icc2 /* leave Z set, clear C */
+
+ # exceptions must've been enabled and we must've been in supervisor mode
+ setlos BPSR_BET|BPSR_BS,gr3
+ movgs gr3,bpsr
+
+ # return to where the interrupt happened
+ movsg pcsr,gr2
+ movgs gr2,bpcsr
+
+ lddi.p @(gr31,#REG_GR(2)),gr2
+
+ xor gr31,gr31,gr31
+ movgs gr0,brr
+#ifdef CONFIG_MMU
+ movsg scr3,gr31
+#endif
+ rett #1
+
+# we stepped through into the virtual interrupt reenablement trap
+#
+# we also want to single step anyway, but after fixing up so that we get an event on the
+# instruction after the broken-into exception returns
+ .globl __break_step_kernel_external_interrupt_virtual_reenable
+__break_step_kernel_external_interrupt_virtual_reenable:
+ movsg psr,gr2
+ andi gr2,#~PSR_PIL,gr2
+ movgs gr2,psr
+
+ ldi @(gr31,#REG_CCR),gr3
+ movgs gr3,ccr
+ subicc gr0,#1,gr0,icc2 /* clear Z, set C */
+
+ # save the adjusted ICC2
+ movsg ccr,gr3
+ sti gr3,@(gr31,#REG_CCR)
+
+ # exceptions must've been enabled and we must've been in supervisor mode
+ setlos BPSR_BET|BPSR_BS,gr3
+ movgs gr3,bpsr
+
+ # return to where the trap happened
+ movsg pcsr,gr2
+ movgs gr2,bpcsr
+
+ # and then process the single step
+ bra __break_continue
+
# step through an internal exception from uspace mode
.globl __break_step_uspace_softprog_interrupt
__break_step_uspace_softprog_interrupt:
diff --git a/arch/frv/kernel/entry-table.S b/arch/frv/kernel/entry-table.S
index 9b9243e..81568ac 100644
--- a/arch/frv/kernel/entry-table.S
+++ b/arch/frv/kernel/entry-table.S
@@ -116,6 +116,8 @@
.long __break_step_uspace_external_interrupt
.section .trap.kernel
.org \tbr_tt
+ # deal with virtual interrupt disablement
+ beq icc2,#0,__entry_kernel_external_interrupt_virtually_disabled
bra __entry_kernel_external_interrupt
.section .trap.fixup.kernel
.org \tbr_tt >> 2
@@ -259,25 +261,52 @@
.org TBR_TT_TRAP0
.rept 127
bra __entry_uspace_softprog_interrupt
- bra __break_step_uspace_softprog_interrupt
- .long 0,0
+ .long 0,0,0
.endr
.org TBR_TT_BREAK
bra __entry_break
.long 0,0,0
+ .section .trap.fixup.user
+ .org TBR_TT_TRAP0 >> 2
+ .rept 127
+ .long __break_step_uspace_softprog_interrupt
+ .endr
+ .org TBR_TT_BREAK >> 2
+ .long 0
+
# miscellaneous kernel mode entry points
.section .trap.kernel
.org TBR_TT_TRAP0
- .rept 127
bra __entry_kernel_softprog_interrupt
- bra __break_step_kernel_softprog_interrupt
- .long 0,0
+ .org TBR_TT_TRAP1
+ bra __entry_kernel_softprog_interrupt
+
+ # trap #2 in kernel - reenable interrupts
+ .org TBR_TT_TRAP2
+ bra __entry_kernel_external_interrupt_virtual_reenable
+
+ # miscellaneous kernel traps
+ .org TBR_TT_TRAP3
+ .rept 124
+ bra __entry_kernel_softprog_interrupt
+ .long 0,0,0
.endr
.org TBR_TT_BREAK
bra __entry_break
.long 0,0,0
+ .section .trap.fixup.kernel
+ .org TBR_TT_TRAP0 >> 2
+ .long __break_step_kernel_softprog_interrupt
+ .long __break_step_kernel_softprog_interrupt
+ .long __break_step_kernel_external_interrupt_virtual_reenable
+ .rept 124
+ .long __break_step_kernel_softprog_interrupt
+ .endr
+ .org TBR_TT_BREAK >> 2
+ .long 0
+
# miscellaneous debug mode entry points
.section .trap.break
.org TBR_TT_BREAK
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index 5f65483..1d21c8d 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -141,7 +141,10 @@
movsg gner0,gr4
movsg gner1,gr5
- stdi gr4,@(gr28,#REG_GNER0)
+ stdi.p gr4,@(gr28,#REG_GNER0)
+
+ # interrupts start off fully disabled in the interrupt handler
+ subcc gr0,gr0,gr0,icc2 /* set Z and clear C */
# set up kernel global registers
sethi.p %hi(__kernel_current_task),gr5
@@ -193,9 +196,8 @@
.type __entry_kernel_external_interrupt,@function
__entry_kernel_external_interrupt:
LEDS 0x6210
-
- sub sp,gr15,gr31
- LEDS32
+// sub sp,gr15,gr31
+// LEDS32
# set up the stack pointer
or.p sp,gr0,gr30
@@ -231,7 +233,10 @@
stdi gr24,@(gr28,#REG_GR(24))
stdi gr26,@(gr28,#REG_GR(26))
sti gr29,@(gr28,#REG_GR(29))
- stdi gr30,@(gr28,#REG_GR(30))
+ stdi.p gr30,@(gr28,#REG_GR(30))
+
+ # note virtual interrupts will be fully enabled upon return
+ subicc gr0,#1,gr0,icc2 /* clear Z, set C */
movsg tbr ,gr20
movsg psr ,gr22
@@ -267,7 +272,10 @@
movsg gner0,gr4
movsg gner1,gr5
- stdi gr4,@(gr28,#REG_GNER0)
+ stdi.p gr4,@(gr28,#REG_GNER0)
+
+ # interrupts start off fully disabled in the interrupt handler
+ subcc gr0,gr0,gr0,icc2 /* set Z and clear C */
# set the return address
sethi.p %hi(__entry_return_from_kernel_interrupt),gr4
@@ -291,6 +299,45 @@
.size __entry_kernel_external_interrupt,.-__entry_kernel_external_interrupt
+###############################################################################
+#
+# deal with interrupts that were actually virtually disabled
+# - we need to really disable them, flag the fact and return immediately
+# - if you change this, you must alter break.S also
+#
+###############################################################################
+ .balign L1_CACHE_BYTES
+ .globl __entry_kernel_external_interrupt_virtually_disabled
+ .type __entry_kernel_external_interrupt_virtually_disabled,@function
+__entry_kernel_external_interrupt_virtually_disabled:
+ movsg psr,gr30
+ andi gr30,#~PSR_PIL,gr30
+ ori gr30,#PSR_PIL_14,gr30 ; debugging interrupts only
+ movgs gr30,psr
+ subcc gr0,gr0,gr0,icc2 ; leave Z set, clear C
+ rett #0
+
+ .size __entry_kernel_external_interrupt_virtually_disabled,.-__entry_kernel_external_interrupt_virtually_disabled
+
+###############################################################################
+#
+# deal with re-enablement of interrupts that were pending when virtually re-enabled
+# - set ICC2.C, re-enable the real interrupts and return
+# - we can clear ICC2.Z because we shouldn't be here if it's not 0 [due to TIHI]
+# - if you change this, you must alter break.S also
+#
+###############################################################################
+ .balign L1_CACHE_BYTES
+ .globl __entry_kernel_external_interrupt_virtual_reenable
+ .type __entry_kernel_external_interrupt_virtual_reenable,@function
+__entry_kernel_external_interrupt_virtual_reenable:
+ movsg psr,gr30
+ andi gr30,#~PSR_PIL,gr30 ; re-enable interrupts
+ movgs gr30,psr
+ subicc gr0,#1,gr0,icc2 ; clear Z, set C
+ rett #0
+
+ .size __entry_kernel_external_interrupt_virtual_reenable,.-__entry_kernel_external_interrupt_virtual_reenable
###############################################################################
#
@@ -335,6 +382,7 @@
sethi.p %hi(__entry_return_from_user_exception),gr23
setlo %lo(__entry_return_from_user_exception),gr23
+
bra __entry_common
.size __entry_uspace_softprog_interrupt,.-__entry_uspace_softprog_interrupt
@@ -495,7 +543,10 @@
movsg gner0,gr4
movsg gner1,gr5
- stdi gr4,@(gr28,#REG_GNER0)
+ stdi.p gr4,@(gr28,#REG_GNER0)
+
+ # set up virtual interrupt disablement
+ subicc gr0,#1,gr0,icc2 /* clear Z flag, set C flag */
# set up kernel global registers
sethi.p %hi(__kernel_current_task),gr5
@@ -1418,11 +1469,27 @@
.long sys_add_key
.long sys_request_key
.long sys_keyctl
- .long sys_ni_syscall // sys_vperfctr_open
- .long sys_ni_syscall // sys_vperfctr_control /* 290 */
- .long sys_ni_syscall // sys_vperfctr_unlink
- .long sys_ni_syscall // sys_vperfctr_iresume
- .long sys_ni_syscall // sys_vperfctr_read
+ .long sys_ioprio_set
+ .long sys_ioprio_get /* 290 */
+ .long sys_inotify_init
+ .long sys_inotify_add_watch
+ .long sys_inotify_rm_watch
+ .long sys_migrate_pages
+ .long sys_openat /* 295 */
+ .long sys_mkdirat
+ .long sys_mknodat
+ .long sys_fchownat
+ .long sys_futimesat
+ .long sys_newfstatat /* 300 */
+ .long sys_unlinkat
+ .long sys_renameat
+ .long sys_linkat
+ .long sys_symlinkat
+ .long sys_readlinkat /* 305 */
+ .long sys_fchmodat
+ .long sys_faccessat
+ .long sys_pselect6
+ .long sys_ppoll
syscall_table_size = (. - sys_call_table)
diff --git a/arch/frv/kernel/head.S b/arch/frv/kernel/head.S
index c73b4fe..29a5265 100644
--- a/arch/frv/kernel/head.S
+++ b/arch/frv/kernel/head.S
@@ -513,6 +513,9 @@
movgs gr0,ccr
movgs gr0,cccr
+ # initialise the virtual interrupt handling
+ subcc gr0,gr0,gr0,icc2 /* set Z, clear C */
+
#ifdef CONFIG_MMU
movgs gr3,scr2
movgs gr3,scr3
diff --git a/arch/frv/kernel/irq.c b/arch/frv/kernel/irq.c
index 59580c5..27ab4c3 100644
--- a/arch/frv/kernel/irq.c
+++ b/arch/frv/kernel/irq.c
@@ -287,18 +287,11 @@
struct irq_source *source;
int level, cpu;
+ irq_enter();
+
level = (__frame->tbr >> 4) & 0xf;
cpu = smp_processor_id();
-#if 0
- {
- static u32 irqcount;
- *(volatile u32 *) 0xe1200004 = ~((irqcount++ << 8) | level);
- *(volatile u16 *) 0xffc00100 = (u16) ~0x9999;
- mb();
- }
-#endif
-
if ((unsigned long) __frame - (unsigned long) (current + 1) < 512)
BUG();
@@ -308,40 +301,12 @@
kstat_this_cpu.irqs[level]++;
- irq_enter();
-
for (source = frv_irq_levels[level].sources; source; source = source->next)
source->doirq(source);
- irq_exit();
-
__clr_MASK(level);
- /* only process softirqs if we didn't interrupt another interrupt handler */
- if ((__frame->psr & PSR_PIL) == PSR_PIL_0)
- if (local_softirq_pending())
- do_softirq();
-
-#ifdef CONFIG_PREEMPT
- local_irq_disable();
- while (--current->preempt_count == 0) {
- if (!(__frame->psr & PSR_S) ||
- current->need_resched == 0 ||
- in_interrupt())
- break;
- current->preempt_count++;
- local_irq_enable();
- preempt_schedule();
- local_irq_disable();
- }
-#endif
-
-#if 0
- {
- *(volatile u16 *) 0xffc00100 = (u16) ~0x6666;
- mb();
- }
-#endif
+ irq_exit();
} /* end do_IRQ() */
diff --git a/arch/frv/mm/kmap.c b/arch/frv/mm/kmap.c
index 539f45e6..c54f18e 100644
--- a/arch/frv/mm/kmap.c
+++ b/arch/frv/mm/kmap.c
@@ -44,15 +44,6 @@
}
/*
- * __iounmap unmaps nearly everything, so be careful
- * it doesn't free currently pointer/page tables anymore but it
- * wans't used anyway and might be added later.
- */
-void __iounmap(void *addr, unsigned long size)
-{
-}
-
-/*
* Set new cache mode for some kernel address space.
* The caller must push data for that range itself, if such data may already
* be in the cache.
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 80940d7..98308b0 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -33,6 +33,10 @@
bool
default y
+config TIME_LOW_RES
+ bool
+ default y
+
config ISA
bool
default y
diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu
index a380167..582797d 100644
--- a/arch/h8300/Kconfig.cpu
+++ b/arch/h8300/Kconfig.cpu
@@ -169,7 +169,7 @@
config CPU_H8300H
bool
- depends on (H8002 || H83007 || H83048 || H83068)
+ depends on (H83002 || H83007 || H83048 || H83068)
default y
config CPU_H8S
diff --git a/arch/i386/boot/.gitignore b/arch/i386/boot/.gitignore
new file mode 100644
index 0000000..495f20c
--- /dev/null
+++ b/arch/i386/boot/.gitignore
@@ -0,0 +1,3 @@
+bootsect
+bzImage
+setup
diff --git a/arch/i386/boot/tools/.gitignore b/arch/i386/boot/tools/.gitignore
new file mode 100644
index 0000000..378eac2
--- /dev/null
+++ b/arch/i386/boot/tools/.gitignore
@@ -0,0 +1 @@
+build
diff --git a/arch/i386/kernel/.gitignore b/arch/i386/kernel/.gitignore
new file mode 100644
index 0000000..40836ad
--- /dev/null
+++ b/arch/i386/kernel/.gitignore
@@ -0,0 +1 @@
+vsyscall.lds
diff --git a/arch/i386/kernel/vsyscall-sysenter.S b/arch/i386/kernel/vsyscall-sysenter.S
index 4daefb2..76b7281 100644
--- a/arch/i386/kernel/vsyscall-sysenter.S
+++ b/arch/i386/kernel/vsyscall-sysenter.S
@@ -7,6 +7,21 @@
* for details.
*/
+/*
+ * The caller puts arg2 in %ecx, which gets pushed. The kernel will use
+ * %ecx itself for arg2. The pushing is because the sysexit instruction
+ * (found in entry.S) requires that we clobber %ecx with the desired %esp.
+ * User code might expect that %ecx is unclobbered though, as it would be
+ * for returning via the iret instruction, so we must push and pop.
+ *
+ * The caller puts arg3 in %edx, which the sysexit instruction requires
+ * for %eip. Thus, exactly as for arg2, we must push and pop.
+ *
+ * Arg6 is different. The caller puts arg6 in %ebp. Since the sysenter
+ * instruction clobbers %esp, the user's %esp won't even survive entry
+ * into the kernel. We store %esp in %ebp. Code in entry.S must fetch
+ * arg6 from the stack.
+ */
.text
.globl __kernel_vsyscall
.type __kernel_vsyscall,@function
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index e72de58..bbcfd08 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -10,23 +10,8 @@
#include <linux/string.h>
EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memchr);
-EXPORT_SYMBOL(memcmp);
EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(memscan);
-EXPORT_SYMBOL(strcat);
-EXPORT_SYMBOL(strchr);
-EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strcpy);
EXPORT_SYMBOL(strlen);
-EXPORT_SYMBOL(strncat);
-EXPORT_SYMBOL(strncmp);
-EXPORT_SYMBOL(strncpy);
-EXPORT_SYMBOL(strnlen);
-EXPORT_SYMBOL(strrchr);
-EXPORT_SYMBOL(strstr);
-EXPORT_SYMBOL(strpbrk);
#include <asm/checksum.h>
EXPORT_SYMBOL(ip_fast_csum); /* hand-coded assembly */
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index a094ec4..307d01e 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -250,32 +250,27 @@
set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);
}
-#define SMALLUSECS 100
+/*
+ * Generic udelay assumes that if preemption is allowed and the thread
+ * migrates to another CPU, that the ITC values are synchronized across
+ * all CPUs.
+ */
+static void
+ia64_itc_udelay (unsigned long usecs)
+{
+ unsigned long start = ia64_get_itc();
+ unsigned long end = start + usecs*local_cpu_data->cyc_per_usec;
+
+ while (time_before(ia64_get_itc(), end))
+ cpu_relax();
+}
+
+void (*ia64_udelay)(unsigned long usecs) = &ia64_itc_udelay;
void
udelay (unsigned long usecs)
{
- unsigned long start;
- unsigned long cycles;
- unsigned long smallusecs;
-
- /*
- * Execute the non-preemptible delay loop (because the ITC might
- * not be synchronized between CPUS) in relatively short time
- * chunks, allowing preemption between the chunks.
- */
- while (usecs > 0) {
- smallusecs = (usecs > SMALLUSECS) ? SMALLUSECS : usecs;
- preempt_disable();
- cycles = smallusecs*local_cpu_data->cyc_per_usec;
- start = ia64_get_itc();
-
- while (ia64_get_itc() - start < cycles)
- cpu_relax();
-
- preempt_enable();
- usecs -= smallusecs;
- }
+ (*ia64_udelay)(usecs);
}
EXPORT_SYMBOL(udelay);
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 5539190..dabd6c3 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -16,6 +16,7 @@
#include <linux/module.h> /* for EXPORT_SYMBOL */
#include <linux/hardirq.h>
#include <linux/kprobes.h>
+#include <linux/delay.h> /* for ssleep() */
#include <asm/fpswa.h>
#include <asm/ia32.h>
@@ -116,6 +117,13 @@
bust_spinlocks(0);
die.lock_owner = -1;
spin_unlock_irq(&die.lock);
+
+ if (panic_on_oops) {
+ printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
+ ssleep(5);
+ panic("Fatal exception");
+ }
+
do_exit(SIGSEGV);
}
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 3437c23..3edef0d 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -23,6 +23,10 @@
#include "xtalk/hubdev.h"
#include "xtalk/xwidgetdev.h"
+
+extern void sn_init_cpei_timer(void);
+extern void register_sn_procfs(void);
+
static struct list_head sn_sysdata_list;
/* sysdata list struct */
@@ -40,12 +44,12 @@
struct slab_info slab_info[MAX_SLABS + 1];
};
-int sn_ioif_inited = 0; /* SN I/O infrastructure initialized? */
+int sn_ioif_inited; /* SN I/O infrastructure initialized? */
struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
-static int max_segment_number = 0; /* Default highest segment number */
-static int max_pcibus_number = 255; /* Default highest pci bus number */
+static int max_segment_number; /* Default highest segment number */
+static int max_pcibus_number = 255; /* Default highest pci bus number */
/*
* Hooks and struct for unsupported pci providers
@@ -84,7 +88,6 @@
sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
u64 address)
{
-
struct ia64_sal_retval ret_stuff;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
@@ -94,7 +97,6 @@
(u64) nasid, (u64) widget_num,
(u64) device_num, (u64) address, 0, 0, 0);
return ret_stuff.status;
-
}
/*
@@ -102,7 +104,6 @@
*/
static inline u64 sal_get_hubdev_info(u64 handle, u64 address)
{
-
struct ia64_sal_retval ret_stuff;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
@@ -118,7 +119,6 @@
*/
static inline u64 sal_get_pcibus_info(u64 segment, u64 busnum, u64 address)
{
-
struct ia64_sal_retval ret_stuff;
ret_stuff.status = 0;
ret_stuff.v0 = 0;
@@ -215,7 +215,7 @@
struct hubdev_info *hubdev;
u64 status;
u64 nasid;
- int i, widget, device;
+ int i, widget, device, size;
/*
* Get SGI Specific HUB chipset information.
@@ -251,48 +251,37 @@
if (!hubdev->hdi_flush_nasid_list.widget_p)
continue;
+ size = (HUB_WIDGET_ID_MAX + 1) *
+ sizeof(struct sn_flush_device_kernel *);
hubdev->hdi_flush_nasid_list.widget_p =
- kmalloc((HUB_WIDGET_ID_MAX + 1) *
- sizeof(struct sn_flush_device_kernel *),
- GFP_KERNEL);
- memset(hubdev->hdi_flush_nasid_list.widget_p, 0x0,
- (HUB_WIDGET_ID_MAX + 1) *
- sizeof(struct sn_flush_device_kernel *));
+ kzalloc(size, GFP_KERNEL);
+ if (!hubdev->hdi_flush_nasid_list.widget_p)
+ BUG();
for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) {
- sn_flush_device_kernel = kmalloc(DEV_PER_WIDGET *
- sizeof(struct
- sn_flush_device_kernel),
- GFP_KERNEL);
+ size = DEV_PER_WIDGET *
+ sizeof(struct sn_flush_device_kernel);
+ sn_flush_device_kernel = kzalloc(size, GFP_KERNEL);
if (!sn_flush_device_kernel)
BUG();
- memset(sn_flush_device_kernel, 0x0,
- DEV_PER_WIDGET *
- sizeof(struct sn_flush_device_kernel));
dev_entry = sn_flush_device_kernel;
for (device = 0; device < DEV_PER_WIDGET;
device++,dev_entry++) {
- dev_entry->common = kmalloc(sizeof(struct
- sn_flush_device_common),
- GFP_KERNEL);
+ size = sizeof(struct sn_flush_device_common);
+ dev_entry->common = kzalloc(size, GFP_KERNEL);
if (!dev_entry->common)
BUG();
- memset(dev_entry->common, 0x0, sizeof(struct
- sn_flush_device_common));
if (sn_prom_feature_available(
PRF_DEVICE_FLUSH_LIST))
status = sal_get_device_dmaflush_list(
- nasid,
- widget,
- device,
- (u64)(dev_entry->common));
+ nasid, widget, device,
+ (u64)(dev_entry->common));
else
status = sn_device_fixup_war(nasid,
- widget,
- device,
- dev_entry->common);
+ widget, device,
+ dev_entry->common);
if (status != SALRET_OK)
panic("SAL call failed: %s\n",
ia64_sal_strerror(status));
@@ -383,13 +372,12 @@
pci_dev_get(dev); /* for the sysdata pointer */
pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
- if (pcidev_info <= 0)
+ if (!pcidev_info)
BUG(); /* Cannot afford to run out of memory */
- sn_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
- if (sn_irq_info <= 0)
+ sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
+ if (!sn_irq_info)
BUG(); /* Cannot afford to run out of memory */
- memset(sn_irq_info, 0, sizeof(struct sn_irq_info));
/* Call to retrieve pci device information needed by kernel. */
status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number,
@@ -482,13 +470,13 @@
*/
void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
{
- int status = 0;
+ int status;
int nasid, cnode;
struct pci_controller *controller;
struct sn_pci_controller *sn_controller;
struct pcibus_bussoft *prom_bussoft_ptr;
struct hubdev_info *hubdev_info;
- void *provider_soft = NULL;
+ void *provider_soft;
struct sn_pcibus_provider *provider;
status = sal_get_pcibus_info((u64) segment, (u64) busnum,
@@ -535,6 +523,8 @@
bus->sysdata = controller;
if (provider->bus_fixup)
provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller);
+ else
+ provider_soft = NULL;
if (provider_soft == NULL) {
/* fixup failed or not applicable */
@@ -638,13 +628,8 @@
static int __init sn_pci_init(void)
{
- int i = 0;
- int j = 0;
+ int i, j;
struct pci_dev *pci_dev = NULL;
- extern void sn_init_cpei_timer(void);
-#ifdef CONFIG_PROC_FS
- extern void register_sn_procfs(void);
-#endif
if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
return 0;
@@ -700,32 +685,29 @@
*/
void hubdev_init_node(nodepda_t * npda, cnodeid_t node)
{
-
struct hubdev_info *hubdev_info;
+ int size;
+ pg_data_t *pg;
+
+ size = sizeof(struct hubdev_info);
if (node >= num_online_nodes()) /* Headless/memless IO nodes */
- hubdev_info =
- (struct hubdev_info *)alloc_bootmem_node(NODE_DATA(0),
- sizeof(struct
- hubdev_info));
+ pg = NODE_DATA(0);
else
- hubdev_info =
- (struct hubdev_info *)alloc_bootmem_node(NODE_DATA(node),
- sizeof(struct
- hubdev_info));
- npda->pdinfo = (void *)hubdev_info;
+ pg = NODE_DATA(node);
+ hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
+
+ npda->pdinfo = (void *)hubdev_info;
}
geoid_t
cnodeid_get_geoid(cnodeid_t cnode)
{
-
struct hubdev_info *hubdev;
hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
return hubdev->hdi_geoid;
-
}
subsys_initcall(sn_pci_init);
@@ -734,3 +716,4 @@
EXPORT_SYMBOL(sn_pci_controller_fixup);
EXPORT_SYMBOL(sn_bus_store_sysdata);
EXPORT_SYMBOL(sn_bus_free_sysdata);
+EXPORT_SYMBOL(sn_pcidev_info_get);
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 48645ac..5b84836 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -75,7 +75,7 @@
DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
EXPORT_PER_CPU_SYMBOL(__sn_hub_info);
-DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);
+DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]);
EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid);
DEFINE_PER_CPU(struct nodepda_s *, __sn_nodepda);
@@ -317,6 +317,7 @@
#define PCDP_PCI_TRANS_IOPORT 0x02
#define PCDP_PCI_TRANS_MMIO 0x01
+#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
static void
sn_scan_pcdp(void)
{
@@ -358,6 +359,7 @@
break; /* once we find the primary, we're done */
}
}
+#endif
static unsigned long sn2_rtc_initial;
diff --git a/arch/ia64/sn/kernel/sn2/prominfo_proc.c b/arch/ia64/sn/kernel/sn2/prominfo_proc.c
index 81c63b2..6ae276d 100644
--- a/arch/ia64/sn/kernel/sn2/prominfo_proc.c
+++ b/arch/ia64/sn/kernel/sn2/prominfo_proc.c
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1999,2001-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (C) 1999,2001-2004, 2006 Silicon Graphics, Inc. All Rights Reserved.
*
* Module to export the system's Firmware Interface Tables, including
* PROM revision numbers and banners, in /proc
@@ -190,7 +190,7 @@
read_version_entry(char *page, char **start, off_t off, int count, int *eof,
void *data)
{
- int len = 0;
+ int len;
/* data holds the NASID of the node */
len = dump_version(page, (unsigned long)data);
@@ -202,7 +202,7 @@
read_fit_entry(char *page, char **start, off_t off, int count, int *eof,
void *data)
{
- int len = 0;
+ int len;
/* data holds the NASID of the node */
len = dump_fit(page, (unsigned long)data);
@@ -229,13 +229,16 @@
struct proc_dir_entry *p;
cnodeid_t cnodeid;
unsigned long nasid;
+ int size;
char name[NODE_NAME_LEN];
if (!ia64_platform_is("sn2"))
return 0;
- proc_entries = kmalloc(num_online_nodes() * sizeof(struct proc_dir_entry *),
- GFP_KERNEL);
+ size = num_online_nodes() * sizeof(struct proc_dir_entry *);
+ proc_entries = kzalloc(size, GFP_KERNEL);
+ if (!proc_entries)
+ return -ENOMEM;
sgi_prominfo_entry = proc_mkdir("sgi_prominfo", NULL);
@@ -244,14 +247,12 @@
sprintf(name, "node%d", cnodeid);
*entp = proc_mkdir(name, sgi_prominfo_entry);
nasid = cnodeid_to_nasid(cnodeid);
- p = create_proc_read_entry(
- "fit", 0, *entp, read_fit_entry,
- (void *)nasid);
+ p = create_proc_read_entry("fit", 0, *entp, read_fit_entry,
+ (void *)nasid);
if (p)
p->owner = THIS_MODULE;
- p = create_proc_read_entry(
- "version", 0, *entp, read_version_entry,
- (void *)nasid);
+ p = create_proc_read_entry("version", 0, *entp,
+ read_version_entry, (void *)nasid);
if (p)
p->owner = THIS_MODULE;
entp++;
@@ -263,7 +264,7 @@
void __exit prominfo_exit(void)
{
struct proc_dir_entry **entp;
- unsigned cnodeid;
+ unsigned int cnodeid;
char name[NODE_NAME_LEN];
entp = proc_entries;
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index f153a4c..24eefb2 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -46,8 +46,14 @@
static __cacheline_aligned DEFINE_SPINLOCK(sn2_global_ptc_lock);
-void sn2_ptc_deadlock_recovery(short *, short, short, int, volatile unsigned long *, unsigned long,
- volatile unsigned long *, unsigned long);
+extern unsigned long
+sn2_ptc_deadlock_recovery_core(volatile unsigned long *, unsigned long,
+ volatile unsigned long *, unsigned long,
+ volatile unsigned long *, unsigned long);
+void
+sn2_ptc_deadlock_recovery(short *, short, short, int,
+ volatile unsigned long *, unsigned long,
+ volatile unsigned long *, unsigned long);
/*
* Note: some is the following is captured here to make degugging easier
@@ -59,16 +65,6 @@
#define reset_max_active_on_deadlock() 1
#define PTC_LOCK(sh1) ((sh1) ? &sn2_global_ptc_lock : &sn_nodepda->ptc_lock)
-static inline void ptc_lock(int sh1, unsigned long *flagp)
-{
- spin_lock_irqsave(PTC_LOCK(sh1), *flagp);
-}
-
-static inline void ptc_unlock(int sh1, unsigned long flags)
-{
- spin_unlock_irqrestore(PTC_LOCK(sh1), flags);
-}
-
struct ptc_stats {
unsigned long ptc_l;
unsigned long change_rid;
@@ -82,6 +78,8 @@
unsigned long shub_ptc_flushes_not_my_mm;
};
+#define sn2_ptctest 0
+
static inline unsigned long wait_piowc(void)
{
volatile unsigned long *piows;
@@ -200,7 +198,7 @@
max_active = max_active_pio(shub1);
itc = ia64_get_itc();
- ptc_lock(shub1, &flags);
+ spin_lock_irqsave(PTC_LOCK(shub1), flags);
itc2 = ia64_get_itc();
__get_cpu_var(ptcstats).lock_itc_clocks += itc2 - itc;
@@ -258,7 +256,7 @@
ia64_srlz_d();
}
- ptc_unlock(shub1, flags);
+ spin_unlock_irqrestore(PTC_LOCK(shub1), flags);
preempt_enable();
}
@@ -270,11 +268,12 @@
* TLB flush transaction. The recovery sequence is somewhat tricky & is
* coded in assembly language.
*/
-void sn2_ptc_deadlock_recovery(short *nasids, short ib, short ie, int mynasid, volatile unsigned long *ptc0, unsigned long data0,
- volatile unsigned long *ptc1, unsigned long data1)
+
+void
+sn2_ptc_deadlock_recovery(short *nasids, short ib, short ie, int mynasid,
+ volatile unsigned long *ptc0, unsigned long data0,
+ volatile unsigned long *ptc1, unsigned long data1)
{
- extern unsigned long sn2_ptc_deadlock_recovery_core(volatile unsigned long *, unsigned long,
- volatile unsigned long *, unsigned long, volatile unsigned long *, unsigned long);
short nasid, i;
unsigned long *piows, zeroval, n;
diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
index a06719d..c686d9c 100644
--- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -6,11 +6,11 @@
* Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/config.h>
-#include <asm/uaccess.h>
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <asm/uaccess.h>
#include <asm/sn/sn_sal.h>
static int partition_id_show(struct seq_file *s, void *p)
@@ -90,10 +90,10 @@
return single_open(file, coherence_id_show, NULL);
}
-static struct proc_dir_entry *sn_procfs_create_entry(
- const char *name, struct proc_dir_entry *parent,
- int (*openfunc)(struct inode *, struct file *),
- int (*releasefunc)(struct inode *, struct file *))
+static struct proc_dir_entry
+*sn_procfs_create_entry(const char *name, struct proc_dir_entry *parent,
+ int (*openfunc)(struct inode *, struct file *),
+ int (*releasefunc)(struct inode *, struct file *))
{
struct proc_dir_entry *e = create_proc_entry(name, 0444, parent);
@@ -126,24 +126,24 @@
return;
sn_procfs_create_entry("partition_id", sgi_proc_dir,
- partition_id_open, single_release);
+ partition_id_open, single_release);
sn_procfs_create_entry("system_serial_number", sgi_proc_dir,
- system_serial_number_open, single_release);
+ system_serial_number_open, single_release);
sn_procfs_create_entry("licenseID", sgi_proc_dir,
- licenseID_open, single_release);
+ licenseID_open, single_release);
e = sn_procfs_create_entry("sn_force_interrupt", sgi_proc_dir,
- sn_force_interrupt_open, single_release);
+ sn_force_interrupt_open, single_release);
if (e)
e->proc_fops->write = sn_force_interrupt_write_proc;
sn_procfs_create_entry("coherence_id", sgi_proc_dir,
- coherence_id_open, single_release);
+ coherence_id_open, single_release);
sn_procfs_create_entry("sn_topology", sgi_proc_dir,
- sn_topology_open, sn_topology_release);
+ sn_topology_open, sn_topology_release);
}
#endif /* CONFIG_PROC_FS */
diff --git a/arch/ia64/sn/kernel/sn2/timer.c b/arch/ia64/sn/kernel/sn2/timer.c
index deb9baf..56a88b6 100644
--- a/arch/ia64/sn/kernel/sn2/timer.c
+++ b/arch/ia64/sn/kernel/sn2/timer.c
@@ -14,6 +14,7 @@
#include <asm/hw_irq.h>
#include <asm/system.h>
+#include <asm/timex.h>
#include <asm/sn/leds.h>
#include <asm/sn/shub_mmr.h>
@@ -28,9 +29,27 @@
.source = TIME_SOURCE_MMIO64
};
+/*
+ * sn udelay uses the RTC instead of the ITC because the ITC is not
+ * synchronized across all CPUs, and the thread may migrate to another CPU
+ * if preemption is enabled.
+ */
+static void
+ia64_sn_udelay (unsigned long usecs)
+{
+ unsigned long start = rtc_time();
+ unsigned long end = start +
+ usecs * sn_rtc_cycles_per_second / 1000000;
+
+ while (time_before((unsigned long)rtc_time(), end))
+ cpu_relax();
+}
+
void __init sn_timer_init(void)
{
sn2_interpolator.frequency = sn_rtc_cycles_per_second;
sn2_interpolator.addr = RTC_COUNTER_ADDR;
register_time_interpolator(&sn2_interpolator);
+
+ ia64_udelay = &ia64_sn_udelay;
}
diff --git a/arch/ia64/sn/kernel/sn2/timer_interrupt.c b/arch/ia64/sn/kernel/sn2/timer_interrupt.c
index adf5db2..fa7f699 100644
--- a/arch/ia64/sn/kernel/sn2/timer_interrupt.c
+++ b/arch/ia64/sn/kernel/sn2/timer_interrupt.c
@@ -1,7 +1,7 @@
/*
*
*
- * Copyright (c) 2005 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2005, 2006 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
@@ -22,11 +22,6 @@
* License along with this program; if not, write the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan
diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index d263d3e..8a56f8b 100644
--- a/arch/ia64/sn/kernel/tiocx.c
+++ b/arch/ia64/sn/kernel/tiocx.c
@@ -284,12 +284,10 @@
if ((nasid & 1) == 0)
return NULL;
- sn_irq_info = kmalloc(sn_irq_size, GFP_KERNEL);
+ sn_irq_info = kzalloc(sn_irq_size, GFP_KERNEL);
if (sn_irq_info == NULL)
return NULL;
- memset(sn_irq_info, 0x0, sn_irq_size);
-
status = tiocx_intr_alloc(nasid, widget, __pa(sn_irq_info), irq,
req_nasid, slice);
if (status) {
diff --git a/arch/ia64/sn/kernel/xpc_channel.c b/arch/ia64/sn/kernel/xpc_channel.c
index 36e5437..cdf6856 100644
--- a/arch/ia64/sn/kernel/xpc_channel.c
+++ b/arch/ia64/sn/kernel/xpc_channel.c
@@ -738,7 +738,9 @@
/* make sure all activity has settled down first */
- if (atomic_read(&ch->references) > 0) {
+ if (atomic_read(&ch->references) > 0 ||
+ ((ch->flags & XPC_C_CONNECTEDCALLOUT_MADE) &&
+ !(ch->flags & XPC_C_DISCONNECTINGCALLOUT_MADE))) {
return;
}
DBUG_ON(atomic_read(&ch->kthreads_assigned) != 0);
@@ -775,7 +777,7 @@
/* both sides are disconnected now */
- if (ch->flags & XPC_C_CONNECTCALLOUT) {
+ if (ch->flags & XPC_C_DISCONNECTINGCALLOUT_MADE) {
spin_unlock_irqrestore(&ch->lock, *irq_flags);
xpc_disconnect_callout(ch, xpcDisconnected);
spin_lock_irqsave(&ch->lock, *irq_flags);
@@ -1300,7 +1302,7 @@
"delivered=%d, partid=%d, channel=%d\n",
nmsgs_sent, ch->partid, ch->number);
- if (ch->flags & XPC_C_CONNECTCALLOUT) {
+ if (ch->flags & XPC_C_CONNECTEDCALLOUT_MADE) {
xpc_activate_kthreads(ch, nmsgs_sent);
}
}
diff --git a/arch/ia64/sn/kernel/xpc_main.c b/arch/ia64/sn/kernel/xpc_main.c
index 9cd460d..8cbf164 100644
--- a/arch/ia64/sn/kernel/xpc_main.c
+++ b/arch/ia64/sn/kernel/xpc_main.c
@@ -750,12 +750,16 @@
/* let registerer know that connection has been established */
spin_lock_irqsave(&ch->lock, irq_flags);
- if (!(ch->flags & XPC_C_CONNECTCALLOUT)) {
- ch->flags |= XPC_C_CONNECTCALLOUT;
+ if (!(ch->flags & XPC_C_CONNECTEDCALLOUT)) {
+ ch->flags |= XPC_C_CONNECTEDCALLOUT;
spin_unlock_irqrestore(&ch->lock, irq_flags);
xpc_connected_callout(ch);
+ spin_lock_irqsave(&ch->lock, irq_flags);
+ ch->flags |= XPC_C_CONNECTEDCALLOUT_MADE;
+ spin_unlock_irqrestore(&ch->lock, irq_flags);
+
/*
* It is possible that while the callout was being
* made that the remote partition sent some messages.
@@ -777,15 +781,17 @@
if (atomic_dec_return(&ch->kthreads_assigned) == 0) {
spin_lock_irqsave(&ch->lock, irq_flags);
- if ((ch->flags & XPC_C_CONNECTCALLOUT) &&
- !(ch->flags & XPC_C_DISCONNECTCALLOUT)) {
- ch->flags |= XPC_C_DISCONNECTCALLOUT;
+ if ((ch->flags & XPC_C_CONNECTEDCALLOUT_MADE) &&
+ !(ch->flags & XPC_C_DISCONNECTINGCALLOUT)) {
+ ch->flags |= XPC_C_DISCONNECTINGCALLOUT;
spin_unlock_irqrestore(&ch->lock, irq_flags);
xpc_disconnect_callout(ch, xpcDisconnecting);
- } else {
- spin_unlock_irqrestore(&ch->lock, irq_flags);
+
+ spin_lock_irqsave(&ch->lock, irq_flags);
+ ch->flags |= XPC_C_DISCONNECTINGCALLOUT_MADE;
}
+ spin_unlock_irqrestore(&ch->lock, irq_flags);
if (atomic_dec_return(&part->nchannels_engaged) == 0) {
xpc_mark_partition_disengaged(part);
xpc_IPI_send_disengage(part);
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 5a36292..b4b84c26 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -335,10 +335,10 @@
*/
SAL_CALL(isrv, SN_SAL_IOIF_PCI_SAFE,
- pci_domain_nr(bus), bus->number,
- 0, /* io */
- 0, /* read */
- port, size, __pa(val));
+ pci_domain_nr(bus), bus->number,
+ 0, /* io */
+ 0, /* read */
+ port, size, __pa(val));
if (isrv.status == 0)
return size;
@@ -381,10 +381,10 @@
*/
SAL_CALL(isrv, SN_SAL_IOIF_PCI_SAFE,
- pci_domain_nr(bus), bus->number,
- 0, /* io */
- 1, /* write */
- port, size, __pa(&val));
+ pci_domain_nr(bus), bus->number,
+ 0, /* io */
+ 1, /* write */
+ port, size, __pa(&val));
if (isrv.status == 0)
return size;
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_ate.c b/arch/ia64/sn/pci/pcibr/pcibr_ate.c
index aa3fa51..1f0253b 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_ate.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_ate.c
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2001-2004 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2001-2006 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/types.h>
@@ -12,7 +12,7 @@
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
-int pcibr_invalidate_ate = 0; /* by default don't invalidate ATE on free */
+int pcibr_invalidate_ate; /* by default don't invalidate ATE on free */
/*
* mark_ate: Mark the ate as either free or inuse.
@@ -20,14 +20,12 @@
static void mark_ate(struct ate_resource *ate_resource, int start, int number,
u64 value)
{
-
u64 *ate = ate_resource->ate;
int index;
int length = 0;
for (index = start; length < number; index++, length++)
ate[index] = value;
-
}
/*
@@ -37,7 +35,6 @@
static int find_free_ate(struct ate_resource *ate_resource, int start,
int count)
{
-
u64 *ate = ate_resource->ate;
int index;
int start_free;
@@ -70,12 +67,10 @@
static inline void free_ate_resource(struct ate_resource *ate_resource,
int start)
{
-
mark_ate(ate_resource, start, ate_resource->ate[start], 0);
if ((ate_resource->lowest_free_index > start) ||
(ate_resource->lowest_free_index < 0))
ate_resource->lowest_free_index = start;
-
}
/*
@@ -84,7 +79,6 @@
static inline int alloc_ate_resource(struct ate_resource *ate_resource,
int ate_needed)
{
-
int start_index;
/*
@@ -118,19 +112,12 @@
*/
int pcibr_ate_alloc(struct pcibus_info *pcibus_info, int count)
{
- int status = 0;
- u64 flag;
+ int status;
+ unsigned long flags;
- flag = pcibr_lock(pcibus_info);
+ spin_lock_irqsave(&pcibus_info->pbi_lock, flags);
status = alloc_ate_resource(&pcibus_info->pbi_int_ate_resource, count);
-
- if (status < 0) {
- /* Failed to allocate */
- pcibr_unlock(pcibus_info, flag);
- return -1;
- }
-
- pcibr_unlock(pcibus_info, flag);
+ spin_unlock_irqrestore(&pcibus_info->pbi_lock, flags);
return status;
}
@@ -182,7 +169,7 @@
ate_write(pcibus_info, index, count, (ate & ~PCI32_ATE_V));
}
- flags = pcibr_lock(pcibus_info);
+ spin_lock_irqsave(&pcibus_info->pbi_lock, flags);
free_ate_resource(&pcibus_info->pbi_int_ate_resource, index);
- pcibr_unlock(pcibus_info, flags);
+ spin_unlock_irqrestore(&pcibus_info->pbi_lock, flags);
}
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_dma.c b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
index 54ce5b7..9f86bb6 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_dma.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
@@ -137,14 +137,12 @@
pci_addr |= PCI64_ATTR_VIRTUAL;
return pci_addr;
-
}
static dma_addr_t
pcibr_dmatrans_direct32(struct pcidev_info * info,
u64 paddr, size_t req_size, u64 flags)
{
-
struct pcidev_info *pcidev_info = info->pdi_host_pcidev_info;
struct pcibus_info *pcibus_info = (struct pcibus_info *)pcidev_info->
pdi_pcibus_info;
@@ -171,7 +169,6 @@
}
return PCI32_DIRECT_BASE | offset;
-
}
/*
@@ -218,9 +215,8 @@
u64 flags;
u64 itte;
struct hubdev_info *hubinfo;
- volatile struct sn_flush_device_kernel *p;
- volatile struct sn_flush_device_common *common;
-
+ struct sn_flush_device_kernel *p;
+ struct sn_flush_device_common *common;
struct sn_flush_nasid_entry *flush_nasid_list;
if (!sn_ioif_inited)
@@ -310,8 +306,7 @@
(common->sfdl_slot - 1));
}
} else {
- spin_lock_irqsave((spinlock_t *)&p->sfdl_flush_lock,
- flags);
+ spin_lock_irqsave(&p->sfdl_flush_lock, flags);
*common->sfdl_flush_addr = 0;
/* force an interrupt. */
@@ -322,8 +317,7 @@
cpu_relax();
/* okay, everything is synched up. */
- spin_unlock_irqrestore((spinlock_t *)&p->sfdl_flush_lock,
- flags);
+ spin_unlock_irqrestore(&p->sfdl_flush_lock, flags);
}
return;
}
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
index 2fac270..98f716bd 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
@@ -163,9 +163,12 @@
/* Setup the PMU ATE map */
soft->pbi_int_ate_resource.lowest_free_index = 0;
soft->pbi_int_ate_resource.ate =
- kmalloc(soft->pbi_int_ate_size * sizeof(u64), GFP_KERNEL);
- memset(soft->pbi_int_ate_resource.ate, 0,
- (soft->pbi_int_ate_size * sizeof(u64)));
+ kzalloc(soft->pbi_int_ate_size * sizeof(u64), GFP_KERNEL);
+
+ if (!soft->pbi_int_ate_resource.ate) {
+ kfree(soft);
+ return NULL;
+ }
if (prom_bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) {
/* TIO PCI Bridge: find nearest node with CPUs */
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 96b9198..8849439e 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -21,6 +21,10 @@
bool
default y
+config TIME_LOW_RES
+ bool
+ default y
+
config ARCH_MAY_HAVE_PC_FDC
bool
depends on Q40 || (BROKEN && SUN3X)
diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
index e2a6e86..e50858d 100644
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68knommu/Kconfig
@@ -29,6 +29,10 @@
bool
default y
+config TIME_LOW_RES
+ bool
+ default y
+
source "init/Kconfig"
menu "Processor type and features"
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 6a57407..38c0f336 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -94,7 +94,6 @@
# machines may also. Since BFD is incredibly buggy with respect to
# crossformat linking we rely on the elf2ecoff tool for format conversion.
#
-cflags-y += -I $(TOPDIR)/include/asm/gcc
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
MODFLAGS += -mlong-calls
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 5232fc7..092679c 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -25,6 +25,7 @@
#include <linux/a.out.h>
#include <linux/init.h>
#include <linux/completion.h>
+#include <linux/kallsyms.h>
#include <asm/abi.h>
#include <asm/bootinfo.h>
@@ -272,46 +273,19 @@
static struct mips_frame_info {
void *func;
- int omit_fp; /* compiled without fno-omit-frame-pointer */
- int frame_offset;
+ unsigned long func_size;
+ int frame_size;
int pc_offset;
-} schedule_frame, mfinfo[] = {
- { schedule, 0 }, /* must be first */
- /* arch/mips/kernel/semaphore.c */
- { __down, 1 },
- { __down_interruptible, 1 },
- /* kernel/sched.c */
-#ifdef CONFIG_PREEMPT
- { preempt_schedule, 0 },
-#endif
- { wait_for_completion, 0 },
- { interruptible_sleep_on, 0 },
- { interruptible_sleep_on_timeout, 0 },
- { sleep_on, 0 },
- { sleep_on_timeout, 0 },
- { yield, 0 },
- { io_schedule, 0 },
- { io_schedule_timeout, 0 },
-#if defined(CONFIG_SMP) && defined(CONFIG_PREEMPT)
- { __preempt_spin_lock, 0 },
- { __preempt_write_lock, 0 },
-#endif
- /* kernel/timer.c */
- { schedule_timeout, 1 },
-/* { nanosleep_restart, 1 }, */
- /* lib/rwsem-spinlock.c */
- { __down_read, 1 },
- { __down_write, 1 },
-};
+} *schedule_frame, mfinfo[64];
+static int mfinfo_num;
-static int mips_frame_info_initialized;
static int __init get_frame_info(struct mips_frame_info *info)
{
int i;
void *func = info->func;
union mips_instruction *ip = (union mips_instruction *)func;
info->pc_offset = -1;
- info->frame_offset = info->omit_fp ? 0 : -1;
+ info->frame_size = 0;
for (i = 0; i < 128; i++, ip++) {
/* if jal, jalr, jr, stop. */
if (ip->j_format.opcode == jal_op ||
@@ -320,6 +294,23 @@
ip->r_format.func == jr_op)))
break;
+ if (info->func_size && i >= info->func_size / 4)
+ break;
+ if (
+#ifdef CONFIG_32BIT
+ ip->i_format.opcode == addiu_op &&
+#endif
+#ifdef CONFIG_64BIT
+ ip->i_format.opcode == daddiu_op &&
+#endif
+ ip->i_format.rs == 29 &&
+ ip->i_format.rt == 29) {
+ /* addiu/daddiu sp,sp,-imm */
+ if (info->frame_size)
+ continue;
+ info->frame_size = - ip->i_format.simmediate;
+ }
+
if (
#ifdef CONFIG_32BIT
ip->i_format.opcode == sw_op &&
@@ -327,31 +318,20 @@
#ifdef CONFIG_64BIT
ip->i_format.opcode == sd_op &&
#endif
- ip->i_format.rs == 29)
- {
+ ip->i_format.rs == 29 &&
+ ip->i_format.rt == 31) {
/* sw / sd $ra, offset($sp) */
- if (ip->i_format.rt == 31) {
- if (info->pc_offset != -1)
- continue;
- info->pc_offset =
- ip->i_format.simmediate / sizeof(long);
- }
- /* sw / sd $s8, offset($sp) */
- if (ip->i_format.rt == 30) {
-//#if 0 /* gcc 3.4 does aggressive optimization... */
- if (info->frame_offset != -1)
- continue;
-//#endif
- info->frame_offset =
- ip->i_format.simmediate / sizeof(long);
- }
+ if (info->pc_offset != -1)
+ continue;
+ info->pc_offset =
+ ip->i_format.simmediate / sizeof(long);
}
}
- if (info->pc_offset == -1 || info->frame_offset == -1) {
- printk("Can't analyze prologue code at %p\n", func);
+ if (info->pc_offset == -1 || info->frame_size == 0) {
+ if (func == schedule)
+ printk("Can't analyze prologue code at %p\n", func);
info->pc_offset = -1;
- info->frame_offset = -1;
- return -1;
+ info->frame_size = 0;
}
return 0;
@@ -359,25 +339,36 @@
static int __init frame_info_init(void)
{
- int i, found;
- for (i = 0; i < ARRAY_SIZE(mfinfo); i++)
- if (get_frame_info(&mfinfo[i]))
- return -1;
- schedule_frame = mfinfo[0];
- /* bubble sort */
- do {
- struct mips_frame_info tmp;
- found = 0;
- for (i = 1; i < ARRAY_SIZE(mfinfo); i++) {
- if (mfinfo[i-1].func > mfinfo[i].func) {
- tmp = mfinfo[i];
- mfinfo[i] = mfinfo[i-1];
- mfinfo[i-1] = tmp;
- found = 1;
- }
- }
- } while (found);
- mips_frame_info_initialized = 1;
+ int i;
+#ifdef CONFIG_KALLSYMS
+ char *modname;
+ char namebuf[KSYM_NAME_LEN + 1];
+ unsigned long start, size, ofs;
+ extern char __sched_text_start[], __sched_text_end[];
+ extern char __lock_text_start[], __lock_text_end[];
+
+ start = (unsigned long)__sched_text_start;
+ for (i = 0; i < ARRAY_SIZE(mfinfo); i++) {
+ if (start == (unsigned long)schedule)
+ schedule_frame = &mfinfo[i];
+ if (!kallsyms_lookup(start, &size, &ofs, &modname, namebuf))
+ break;
+ mfinfo[i].func = (void *)(start + ofs);
+ mfinfo[i].func_size = size;
+ start += size - ofs;
+ if (start >= (unsigned long)__lock_text_end)
+ break;
+ if (start == (unsigned long)__sched_text_end)
+ start = (unsigned long)__lock_text_start;
+ }
+#else
+ mfinfo[0].func = schedule;
+ schedule_frame = &mfinfo[0];
+#endif
+ for (i = 0; i < ARRAY_SIZE(mfinfo) && mfinfo[i].func; i++)
+ get_frame_info(&mfinfo[i]);
+
+ mfinfo_num = i;
return 0;
}
@@ -394,47 +385,52 @@
if (t->reg31 == (unsigned long) ret_from_fork)
return t->reg31;
- if (schedule_frame.pc_offset < 0)
+ if (!schedule_frame || schedule_frame->pc_offset < 0)
return 0;
- return ((unsigned long *)t->reg29)[schedule_frame.pc_offset];
+ return ((unsigned long *)t->reg29)[schedule_frame->pc_offset];
}
/* get_wchan - a maintenance nightmare^W^Wpain in the ass ... */
unsigned long get_wchan(struct task_struct *p)
{
unsigned long stack_page;
- unsigned long frame, pc;
+ unsigned long pc;
+#ifdef CONFIG_KALLSYMS
+ unsigned long frame;
+#endif
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
stack_page = (unsigned long)task_stack_page(p);
- if (!stack_page || !mips_frame_info_initialized)
+ if (!stack_page || !mfinfo_num)
return 0;
pc = thread_saved_pc(p);
+#ifdef CONFIG_KALLSYMS
if (!in_sched_functions(pc))
return pc;
- frame = ((unsigned long *)p->thread.reg30)[schedule_frame.frame_offset];
+ frame = p->thread.reg29 + schedule_frame->frame_size;
do {
int i;
if (frame < stack_page || frame > stack_page + THREAD_SIZE - 32)
return 0;
- for (i = ARRAY_SIZE(mfinfo) - 1; i >= 0; i--) {
+ for (i = mfinfo_num - 1; i >= 0; i--) {
if (pc >= (unsigned long) mfinfo[i].func)
break;
}
if (i < 0)
break;
- if (mfinfo[i].omit_fp)
- break;
pc = ((unsigned long *)frame)[mfinfo[i].pc_offset];
- frame = ((unsigned long *)frame)[mfinfo[i].frame_offset];
+ if (!mfinfo[i].frame_size)
+ break;
+ frame += mfinfo[i].frame_size;
} while (in_sched_functions(pc));
+#endif
return pc;
}
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 0fbc492..36bfc25 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -176,7 +176,7 @@
if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0))
sp = current->sas_ss_sp + current->sas_ss_size;
- return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? 32 : ALMASK));
+ return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? ~(cpu_icache_line_size()-1) : ALMASK));
}
static inline int install_sigtramp(unsigned int __user *tramp,
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index da3271e..8a8b8dd 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -537,7 +537,7 @@
/* The ucontext contains a stack32_t, so we must convert! */
if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp))
goto badframe;
- st.ss_size = (long) sp;
+ st.ss_sp = (void *)(long) sp;
if (__get_user(st.ss_size, &frame->rs_uc.uc_stack.ss_size))
goto badframe;
if (__get_user(st.ss_flags, &frame->rs_uc.uc_stack.ss_flags))
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 384fc4a..5a37760 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -108,7 +108,7 @@
/* The ucontext contains a stack32_t, so we must convert! */
if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp))
goto badframe;
- st.ss_size = (long) sp;
+ st.ss_sp = (void *)(long) sp;
if (__get_user(st.ss_size, &frame->rs_uc.uc_stack.ss_size))
goto badframe;
if (__get_user(st.ss_flags, &frame->rs_uc.uc_stack.ss_flags))
diff --git a/arch/mips/kernel/smp_mt.c b/arch/mips/kernel/smp_mt.c
index 794a1c3..c930364 100644
--- a/arch/mips/kernel/smp_mt.c
+++ b/arch/mips/kernel/smp_mt.c
@@ -68,6 +68,8 @@
set_c0_mvpcontrol(MVPCONTROL_VPC);
+ back_to_back_c0_hazard();
+
/* Disable TLB sharing */
clear_c0_mvpcontrol(MVPCONTROL_STLB);
@@ -102,35 +104,6 @@
clear_c0_mvpcontrol(MVPCONTROL_VPC);
}
-#if 0
-/*
- * Use c0_MVPConf0 to find out how many CPUs are available, setting up
- * phys_cpu_present_map and the logical/physical mappings.
- */
-void __init prom_build_cpu_map(void)
-{
- int i, num, ncpus;
-
- cpus_clear(phys_cpu_present_map);
-
- /* assume we boot on cpu 0.... */
- cpu_set(0, phys_cpu_present_map);
- __cpu_number_map[0] = 0;
- __cpu_logical_map[0] = 0;
-
- if (cpu_has_mipsmt) {
- ncpus = ((read_c0_mvpconf0() & (MVPCONF0_PVPE)) >> MVPCONF0_PVPE_SHIFT) + 1;
- for (i=1, num=0; i< NR_CPUS && i<ncpus; i++) {
- cpu_set(i, phys_cpu_present_map);
- __cpu_number_map[i] = ++num;
- __cpu_logical_map[num] = i;
- }
-
- printk(KERN_INFO "%i available secondary CPU(s)\n", num);
- }
-}
-#endif
-
static void ipi_resched_dispatch (struct pt_regs *regs)
{
do_IRQ(MIPS_CPU_IPI_RESCHED_IRQ, regs);
@@ -222,6 +195,9 @@
/* set config to be the same as vpe0, particularly kseg0 coherency alg */
write_vpe_c0_config( read_c0_config());
+
+ /* Propagate Config7 */
+ write_vpe_c0_config7(read_c0_config7());
}
}
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index e51c38c..1b71d91 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -471,61 +471,29 @@
static inline void local_r4k_flush_icache_range(void *args)
{
struct flush_icache_range_args *fir_args = args;
- unsigned long dc_lsize = cpu_dcache_line_size();
- unsigned long ic_lsize = cpu_icache_line_size();
- unsigned long sc_lsize = cpu_scache_line_size();
unsigned long start = fir_args->start;
unsigned long end = fir_args->end;
- unsigned long addr, aend;
if (!cpu_has_ic_fills_f_dc) {
if (end - start > dcache_size) {
r4k_blast_dcache();
} else {
R4600_HIT_CACHEOP_WAR_IMPL;
- addr = start & ~(dc_lsize - 1);
- aend = (end - 1) & ~(dc_lsize - 1);
-
- while (1) {
- /* Hit_Writeback_Inv_D */
- protected_writeback_dcache_line(addr);
- if (addr == aend)
- break;
- addr += dc_lsize;
- }
+ protected_blast_dcache_range(start, end);
}
if (!cpu_icache_snoops_remote_store) {
- if (end - start > scache_size) {
+ if (end - start > scache_size)
r4k_blast_scache();
- } else {
- addr = start & ~(sc_lsize - 1);
- aend = (end - 1) & ~(sc_lsize - 1);
-
- while (1) {
- /* Hit_Writeback_Inv_SD */
- protected_writeback_scache_line(addr);
- if (addr == aend)
- break;
- addr += sc_lsize;
- }
- }
+ else
+ protected_blast_scache_range(start, end);
}
}
if (end - start > icache_size)
r4k_blast_icache();
- else {
- addr = start & ~(ic_lsize - 1);
- aend = (end - 1) & ~(ic_lsize - 1);
- while (1) {
- /* Hit_Invalidate_I */
- protected_flush_icache_line(addr);
- if (addr == aend)
- break;
- addr += ic_lsize;
- }
- }
+ else
+ protected_blast_icache_range(start, end);
}
static void r4k_flush_icache_range(unsigned long start, unsigned long end)
@@ -619,27 +587,14 @@
static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size)
{
- unsigned long end, a;
-
/* Catch bad driver code */
BUG_ON(size == 0);
if (cpu_has_subset_pcaches) {
- unsigned long sc_lsize = cpu_scache_line_size();
-
- if (size >= scache_size) {
+ if (size >= scache_size)
r4k_blast_scache();
- return;
- }
-
- a = addr & ~(sc_lsize - 1);
- end = (addr + size - 1) & ~(sc_lsize - 1);
- while (1) {
- flush_scache_line(a); /* Hit_Writeback_Inv_SD */
- if (a == end)
- break;
- a += sc_lsize;
- }
+ else
+ blast_scache_range(addr, addr + size);
return;
}
@@ -651,17 +606,8 @@
if (size >= dcache_size) {
r4k_blast_dcache();
} else {
- unsigned long dc_lsize = cpu_dcache_line_size();
-
R4600_HIT_CACHEOP_WAR_IMPL;
- a = addr & ~(dc_lsize - 1);
- end = (addr + size - 1) & ~(dc_lsize - 1);
- while (1) {
- flush_dcache_line(a); /* Hit_Writeback_Inv_D */
- if (a == end)
- break;
- a += dc_lsize;
- }
+ blast_dcache_range(addr, addr + size);
}
bc_wback_inv(addr, size);
@@ -669,44 +615,22 @@
static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
{
- unsigned long end, a;
-
/* Catch bad driver code */
BUG_ON(size == 0);
if (cpu_has_subset_pcaches) {
- unsigned long sc_lsize = cpu_scache_line_size();
-
- if (size >= scache_size) {
+ if (size >= scache_size)
r4k_blast_scache();
- return;
- }
-
- a = addr & ~(sc_lsize - 1);
- end = (addr + size - 1) & ~(sc_lsize - 1);
- while (1) {
- flush_scache_line(a); /* Hit_Writeback_Inv_SD */
- if (a == end)
- break;
- a += sc_lsize;
- }
+ else
+ blast_scache_range(addr, addr + size);
return;
}
if (size >= dcache_size) {
r4k_blast_dcache();
} else {
- unsigned long dc_lsize = cpu_dcache_line_size();
-
R4600_HIT_CACHEOP_WAR_IMPL;
- a = addr & ~(dc_lsize - 1);
- end = (addr + size - 1) & ~(dc_lsize - 1);
- while (1) {
- flush_dcache_line(a); /* Hit_Writeback_Inv_D */
- if (a == end)
- break;
- a += dc_lsize;
- }
+ blast_dcache_range(addr, addr + size);
}
bc_inv(addr, size);
diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c
index 0a97a94..7c572be 100644
--- a/arch/mips/mm/c-tx39.c
+++ b/arch/mips/mm/c-tx39.c
@@ -44,8 +44,6 @@
/* TX39H-style cache flush routines. */
static void tx39h_flush_icache_all(void)
{
- unsigned long start = KSEG0;
- unsigned long end = (start + icache_size);
unsigned long flags, config;
/* disable icache (set ICE#) */
@@ -53,33 +51,18 @@
config = read_c0_conf();
write_c0_conf(config & ~TX39_CONF_ICE);
TX39_STOP_STREAMING();
-
- /* invalidate icache */
- while (start < end) {
- cache16_unroll32(start, Index_Invalidate_I);
- start += 0x200;
- }
-
+ blast_icache16();
write_c0_conf(config);
local_irq_restore(flags);
}
static void tx39h_dma_cache_wback_inv(unsigned long addr, unsigned long size)
{
- unsigned long end, a;
- unsigned long dc_lsize = current_cpu_data.dcache.linesz;
-
/* Catch bad driver code */
BUG_ON(size == 0);
iob();
- a = addr & ~(dc_lsize - 1);
- end = (addr + size - 1) & ~(dc_lsize - 1);
- while (1) {
- invalidate_dcache_line(a); /* Hit_Invalidate_D */
- if (a == end) break;
- a += dc_lsize;
- }
+ blast_inv_dcache_range(addr, addr + size);
}
@@ -241,42 +224,21 @@
static void tx39_flush_icache_range(unsigned long start, unsigned long end)
{
- unsigned long dc_lsize = current_cpu_data.dcache.linesz;
- unsigned long addr, aend;
-
if (end - start > dcache_size)
tx39_blast_dcache();
- else {
- addr = start & ~(dc_lsize - 1);
- aend = (end - 1) & ~(dc_lsize - 1);
-
- while (1) {
- /* Hit_Writeback_Inv_D */
- protected_writeback_dcache_line(addr);
- if (addr == aend)
- break;
- addr += dc_lsize;
- }
- }
+ else
+ protected_blast_dcache_range(start, end);
if (end - start > icache_size)
tx39_blast_icache();
else {
unsigned long flags, config;
- addr = start & ~(dc_lsize - 1);
- aend = (end - 1) & ~(dc_lsize - 1);
/* disable icache (set ICE#) */
local_irq_save(flags);
config = read_c0_conf();
write_c0_conf(config & ~TX39_CONF_ICE);
TX39_STOP_STREAMING();
- while (1) {
- /* Hit_Invalidate_I */
- protected_flush_icache_line(addr);
- if (addr == aend)
- break;
- addr += dc_lsize;
- }
+ protected_blast_icache_range(start, end);
write_c0_conf(config);
local_irq_restore(flags);
}
@@ -311,7 +273,7 @@
static void tx39_dma_cache_wback_inv(unsigned long addr, unsigned long size)
{
- unsigned long end, a;
+ unsigned long end;
if (((size | addr) & (PAGE_SIZE - 1)) == 0) {
end = addr + size;
@@ -322,20 +284,13 @@
} else if (size > dcache_size) {
tx39_blast_dcache();
} else {
- unsigned long dc_lsize = current_cpu_data.dcache.linesz;
- a = addr & ~(dc_lsize - 1);
- end = (addr + size - 1) & ~(dc_lsize - 1);
- while (1) {
- flush_dcache_line(a); /* Hit_Writeback_Inv_D */
- if (a == end) break;
- a += dc_lsize;
- }
+ blast_dcache_range(addr, addr + size);
}
}
static void tx39_dma_cache_inv(unsigned long addr, unsigned long size)
{
- unsigned long end, a;
+ unsigned long end;
if (((size | addr) & (PAGE_SIZE - 1)) == 0) {
end = addr + size;
@@ -346,14 +301,7 @@
} else if (size > dcache_size) {
tx39_blast_dcache();
} else {
- unsigned long dc_lsize = current_cpu_data.dcache.linesz;
- a = addr & ~(dc_lsize - 1);
- end = (addr + size - 1) & ~(dc_lsize - 1);
- while (1) {
- invalidate_dcache_line(a); /* Hit_Invalidate_D */
- if (a == end) break;
- a += dc_lsize;
- }
+ blast_inv_dcache_range(addr, addr + size);
}
}
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 7c914a4..eca33cf 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -29,6 +29,11 @@
bool
default y
+config TIME_LOW_RES
+ bool
+ depends on SMP
+ default y
+
config GENERIC_ISA_DMA
bool
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index e96c35b..71f0a2f 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -30,7 +30,7 @@
*/
__asm__ __volatile__(
"0: brct %0,0b"
- : /* no outputs */ : "r" (loops/2) );
+ : /* no outputs */ : "r" ((loops/2) + 1));
}
/*
diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig
index 0449463..e7fc3e5 100644
--- a/arch/v850/Kconfig
+++ b/arch/v850/Kconfig
@@ -28,6 +28,10 @@
bool
default y
+config TIME_LOW_RES
+ bool
+ default y
+
# Turn off some random 386 crap that can affect device config
config ISA
bool
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 4e7dbcc..93e44d0 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -645,7 +645,7 @@
* b) The data can be used as cache to avoid read requests if we receive a
* new write request for the same zone.
*/
-static void pkt_make_local_copy(struct packet_data *pkt, struct page **pages, int *offsets)
+static void pkt_make_local_copy(struct packet_data *pkt, struct bio_vec *bvec)
{
int f, p, offs;
@@ -653,15 +653,15 @@
p = 0;
offs = 0;
for (f = 0; f < pkt->frames; f++) {
- if (pages[f] != pkt->pages[p]) {
- void *vfrom = kmap_atomic(pages[f], KM_USER0) + offsets[f];
+ if (bvec[f].bv_page != pkt->pages[p]) {
+ void *vfrom = kmap_atomic(bvec[f].bv_page, KM_USER0) + bvec[f].bv_offset;
void *vto = page_address(pkt->pages[p]) + offs;
memcpy(vto, vfrom, CD_FRAMESIZE);
kunmap_atomic(vfrom, KM_USER0);
- pages[f] = pkt->pages[p];
- offsets[f] = offs;
+ bvec[f].bv_page = pkt->pages[p];
+ bvec[f].bv_offset = offs;
} else {
- BUG_ON(offsets[f] != offs);
+ BUG_ON(bvec[f].bv_offset != offs);
}
offs += CD_FRAMESIZE;
if (offs >= PAGE_SIZE) {
@@ -991,18 +991,17 @@
static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
{
struct bio *bio;
- struct page *pages[PACKET_MAX_SIZE];
- int offsets[PACKET_MAX_SIZE];
int f;
int frames_write;
+ struct bio_vec *bvec = pkt->w_bio->bi_io_vec;
for (f = 0; f < pkt->frames; f++) {
- pages[f] = pkt->pages[(f * CD_FRAMESIZE) / PAGE_SIZE];
- offsets[f] = (f * CD_FRAMESIZE) % PAGE_SIZE;
+ bvec[f].bv_page = pkt->pages[(f * CD_FRAMESIZE) / PAGE_SIZE];
+ bvec[f].bv_offset = (f * CD_FRAMESIZE) % PAGE_SIZE;
}
/*
- * Fill-in pages[] and offsets[] with data from orig_bios.
+ * Fill-in bvec with data from orig_bios.
*/
frames_write = 0;
spin_lock(&pkt->lock);
@@ -1024,11 +1023,11 @@
}
if (src_bvl->bv_len - src_offs >= CD_FRAMESIZE) {
- pages[f] = src_bvl->bv_page;
- offsets[f] = src_bvl->bv_offset + src_offs;
+ bvec[f].bv_page = src_bvl->bv_page;
+ bvec[f].bv_offset = src_bvl->bv_offset + src_offs;
} else {
pkt_copy_bio_data(bio, segment, src_offs,
- pages[f], offsets[f]);
+ bvec[f].bv_page, bvec[f].bv_offset);
}
src_offs += CD_FRAMESIZE;
frames_write++;
@@ -1042,7 +1041,7 @@
BUG_ON(frames_write != pkt->write_size);
if (test_bit(PACKET_MERGE_SEGS, &pd->flags) || (pkt->write_size < pkt->frames)) {
- pkt_make_local_copy(pkt, pages, offsets);
+ pkt_make_local_copy(pkt, bvec);
pkt->cache_valid = 1;
} else {
pkt->cache_valid = 0;
@@ -1055,17 +1054,9 @@
pkt->w_bio->bi_bdev = pd->bdev;
pkt->w_bio->bi_end_io = pkt_end_io_packet_write;
pkt->w_bio->bi_private = pkt;
- for (f = 0; f < pkt->frames; f++) {
- if ((f + 1 < pkt->frames) && (pages[f + 1] == pages[f]) &&
- (offsets[f + 1] = offsets[f] + CD_FRAMESIZE)) {
- if (!bio_add_page(pkt->w_bio, pages[f], CD_FRAMESIZE * 2, offsets[f]))
- BUG();
- f++;
- } else {
- if (!bio_add_page(pkt->w_bio, pages[f], CD_FRAMESIZE, offsets[f]))
- BUG();
- }
- }
+ for (f = 0; f < pkt->frames; f++)
+ if (!bio_add_page(pkt->w_bio, bvec[f].bv_page, CD_FRAMESIZE, bvec[f].bv_offset))
+ BUG();
VPRINTK("pktcdvd: vcnt=%d\n", pkt->w_bio->bi_vcnt);
atomic_set(&pkt->io_wait, 1);
@@ -1548,7 +1539,7 @@
case 0x12: /* DVD-RAM */
return 0;
default:
- printk("pktcdvd: Wrong disc profile (%x)\n", pd->mmc3_profile);
+ VPRINTK("pktcdvd: Wrong disc profile (%x)\n", pd->mmc3_profile);
return 1;
}
@@ -1894,8 +1885,8 @@
unsigned int write_speed, media_write_speed, read_speed;
if ((ret = pkt_probe_settings(pd))) {
- DPRINTK("pktcdvd: %s failed probe\n", pd->name);
- return -EIO;
+ VPRINTK("pktcdvd: %s failed probe\n", pd->name);
+ return -EROFS;
}
if ((ret = pkt_set_write_settings(pd))) {
@@ -2053,10 +2044,9 @@
goto out_dec;
}
} else {
- if (pkt_open_dev(pd, file->f_mode & FMODE_WRITE)) {
- ret = -EIO;
+ ret = pkt_open_dev(pd, file->f_mode & FMODE_WRITE);
+ if (ret)
goto out_dec;
- }
/*
* needed here as well, since ext2 (among others) may change
* the blocksize at mount time
@@ -2436,11 +2426,12 @@
* The door gets locked when the device is opened, so we
* have to unlock it or else the eject command fails.
*/
- pkt_lock_door(pd, 0);
+ if (pd->refcnt == 1)
+ pkt_lock_door(pd, 0);
return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg);
default:
- printk("pktcdvd: Unknown ioctl for %s (%x)\n", pd->name, cmd);
+ VPRINTK("pktcdvd: Unknown ioctl for %s (%x)\n", pd->name, cmd);
return -ENOTTY;
}
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index 57539d8..09dc4b0 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -150,17 +150,6 @@
/* Standard COM flags (except for COM4, because of the 8514 problem) */
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
-/*
- * tmp_buf is used as a temporary buffer by serial_write. We need to
- * lock it in case the memcpy_fromfs blocks while swapping in a page,
- * and some other program tries to do a serial write at the same time.
- * Since the lock will only come under contention when the system is
- * swapping and available memory is low, it makes sense to share one
- * buffer across all the serial ports, since it significantly saves
- * memory if large numbers of serial ports are open.
- */
-static unsigned char *tmp_buf;
-
static inline int serial_paranoia_check(struct esp_struct *info,
char *name, const char *routine)
{
@@ -1267,7 +1256,7 @@
if (serial_paranoia_check(info, tty->name, "rs_write"))
return 0;
- if (!tty || !info->xmit_buf || !tmp_buf)
+ if (!tty || !info->xmit_buf)
return 0;
while (1) {
@@ -2291,11 +2280,7 @@
tty->driver_data = info;
info->tty = tty;
- if (!tmp_buf) {
- tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL);
- if (!tmp_buf)
- return -ENOMEM;
- }
+ spin_unlock_irqrestore(&info->lock, flags);
/*
* Start up serial port
@@ -2602,9 +2587,6 @@
free_pages((unsigned long)dma_buffer,
get_order(DMA_BUFFER_SZ));
- if (tmp_buf)
- free_page((unsigned long)tmp_buf);
-
while (free_pio_buf) {
pio_buf = free_pio_buf->next;
kfree(free_pio_buf);
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 66a2fee..ef140eb 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -956,22 +956,18 @@
}
} else if (res->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) {
struct acpi_resource_extended_irq *irqp;
- int i;
+ int i, irq;
irqp = &res->data.extended_irq;
- if (irqp->interrupt_count > 0) {
- hdp->hd_nirqs = irqp->interrupt_count;
+ for (i = 0; i < irqp->interrupt_count; i++) {
+ irq = acpi_register_gsi(irqp->interrupts[i],
+ irqp->triggering, irqp->polarity);
+ if (irq < 0)
+ return AE_ERROR;
- for (i = 0; i < hdp->hd_nirqs; i++) {
- int rc =
- acpi_register_gsi(irqp->interrupts[i],
- irqp->triggering,
- irqp->polarity);
- if (rc < 0)
- return AE_ERROR;
- hdp->hd_irq[i] = rc;
- }
+ hdp->hd_irq[hdp->hd_nirqs] = irq;
+ hdp->hd_nirqs++;
}
}
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index a23816d..e9bba94 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1841,7 +1841,6 @@
tty_closing = tty->count <= 1;
o_tty_closing = o_tty &&
(o_tty->count <= (pty_master ? 1 : 0));
- up(&tty_sem);
do_sleep = 0;
if (tty_closing) {
@@ -1869,6 +1868,7 @@
printk(KERN_WARNING "release_dev: %s: read/write wait queue "
"active!\n", tty_name(tty, buf));
+ up(&tty_sem);
schedule();
}
@@ -1877,8 +1877,6 @@
* both sides, and we've completed the last operation that could
* block, so it's safe to proceed with closing.
*/
-
- down(&tty_sem);
if (pty_master) {
if (--o_tty->count < 0) {
printk(KERN_WARNING "release_dev: bad pty slave count "
@@ -1892,7 +1890,6 @@
tty->count, tty_name(tty, buf));
tty->count = 0;
}
- up(&tty_sem);
/*
* We've decremented tty->count, so we need to remove this file
@@ -1937,6 +1934,8 @@
read_unlock(&tasklist_lock);
}
+ up(&tty_sem);
+
/* check whether both sides are closing ... */
if (!tty_closing || (o_tty && !o_tty_closing))
return;
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 2b286e86..43b96e2 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -13,11 +13,6 @@
* License along with this program; if not, write the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index d393b50..c82f47a 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -665,7 +665,15 @@
struct ib_wc mad_wc;
struct ib_send_wr *send_wr = &mad_send_wr->send_wr;
- if (!smi_handle_dr_smp_send(smp, device->node_type, port_num)) {
+ /*
+ * Directed route handling starts if the initial LID routed part of
+ * a request or the ending LID routed part of a response is empty.
+ * If we are at the start of the LID routed part, don't update the
+ * hop_ptr or hop_cnt. See section 14.2.2, Vol 1 IB spec.
+ */
+ if ((ib_get_smp_direction(smp) ? smp->dr_dlid : smp->dr_slid) ==
+ IB_LID_PERMISSIVE &&
+ !smi_handle_dr_smp_send(smp, device->node_type, port_num)) {
ret = -EINVAL;
printk(KERN_ERR PFX "Invalid directed route\n");
goto out;
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index f9b9b93..2825615 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -1029,25 +1029,6 @@
MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET);
dev_lim->uar_scratch_entry_sz = size;
- mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
- dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz);
- mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
- dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz);
- mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
- dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz);
- mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
- dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz);
- mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
- dev_lim->reserved_mrws, dev_lim->reserved_mtts);
- mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
- dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars);
- mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
- dev_lim->max_pds, dev_lim->reserved_mgms);
- mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
- dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz);
-
- mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags);
-
if (mthca_is_memfree(dev)) {
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
dev_lim->max_srq_sz = 1 << field;
@@ -1093,6 +1074,25 @@
dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE;
}
+ mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
+ dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz);
+ mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
+ dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz);
+ mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
+ dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz);
+ mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
+ dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz);
+ mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
+ dev_lim->reserved_mrws, dev_lim->reserved_mtts);
+ mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
+ dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars);
+ mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
+ dev_lim->max_pds, dev_lim->reserved_mgms);
+ mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
+ dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz);
+
+ mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags);
+
out:
mthca_free_mailbox(dev, mailbox);
return err;
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index 2a165fd..e4810372 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -53,8 +53,8 @@
#define DRV_NAME "ib_mthca"
#define PFX DRV_NAME ": "
-#define DRV_VERSION "0.06"
-#define DRV_RELDATE "June 23, 2005"
+#define DRV_VERSION "0.07"
+#define DRV_RELDATE "February 13, 2006"
enum {
MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index e0a5412..2f85a9a 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -78,6 +78,7 @@
IPOIB_FLAG_SUBINTERFACE = 4,
IPOIB_MCAST_RUN = 5,
IPOIB_STOP_REAPER = 6,
+ IPOIB_MCAST_STARTED = 7,
IPOIB_MAX_BACKOFF_SECONDS = 16,
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index ccaa0c3..a2408d7 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -533,8 +533,10 @@
}
if (!priv->broadcast) {
- priv->broadcast = ipoib_mcast_alloc(dev, 1);
- if (!priv->broadcast) {
+ struct ipoib_mcast *broadcast;
+
+ broadcast = ipoib_mcast_alloc(dev, 1);
+ if (!broadcast) {
ipoib_warn(priv, "failed to allocate broadcast group\n");
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
@@ -544,10 +546,11 @@
return;
}
- memcpy(priv->broadcast->mcmember.mgid.raw, priv->dev->broadcast + 4,
- sizeof (union ib_gid));
-
spin_lock_irq(&priv->lock);
+ memcpy(broadcast->mcmember.mgid.raw, priv->dev->broadcast + 4,
+ sizeof (union ib_gid));
+ priv->broadcast = broadcast;
+
__ipoib_mcast_add(dev, priv->broadcast);
spin_unlock_irq(&priv->lock);
}
@@ -601,6 +604,10 @@
queue_work(ipoib_workqueue, &priv->mcast_task);
mutex_unlock(&mcast_mutex);
+ spin_lock_irq(&priv->lock);
+ set_bit(IPOIB_MCAST_STARTED, &priv->flags);
+ spin_unlock_irq(&priv->lock);
+
return 0;
}
@@ -611,6 +618,10 @@
ipoib_dbg_mcast(priv, "stopping multicast thread\n");
+ spin_lock_irq(&priv->lock);
+ clear_bit(IPOIB_MCAST_STARTED, &priv->flags);
+ spin_unlock_irq(&priv->lock);
+
mutex_lock(&mcast_mutex);
clear_bit(IPOIB_MCAST_RUN, &priv->flags);
cancel_delayed_work(&priv->mcast_task);
@@ -693,6 +704,14 @@
*/
spin_lock(&priv->lock);
+ if (!test_bit(IPOIB_MCAST_STARTED, &priv->flags) ||
+ !priv->broadcast ||
+ !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &priv->broadcast->flags)) {
+ ++priv->stats.tx_dropped;
+ dev_kfree_skb_any(skb);
+ goto unlock;
+ }
+
mcast = __ipoib_mcast_find(dev, mgid);
if (!mcast) {
/* Let's create a new send only group now */
@@ -754,6 +773,7 @@
ipoib_send(dev, skb, mcast->ah, IB_MULTICAST_QPN);
}
+unlock:
spin_unlock(&priv->lock);
}
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index f190a99..3936336 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -2359,8 +2359,8 @@
/* use queue instead of direct, if online and */
/* data is in queue or buffer is full */
- if ((info->online && tty_buffer_request_room(tty, l) < l) ||
- (!skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) {
+ if (info->online && ((tty_buffer_request_room(tty, l) < l) ||
+ !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) {
skb = alloc_skb(l, GFP_ATOMIC);
if (!skb) {
spin_unlock_irqrestore(&info->readlock, flags);
diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index 747602a..b85e2b1 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -1334,6 +1334,12 @@
struct neofb_par *par = info->par;
int seqflags, lcdflags, dpmsflags, reg;
+ /*
+ * Reload the value stored in the register, might have been changed via
+ * FN keystroke
+ */
+ par->PanelDispCntlReg1 = vga_rgfx(NULL, 0x20) & 0x03;
+
switch (blank_mode) {
case FB_BLANK_POWERDOWN: /* powerdown - both sync lines down */
seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
@@ -1366,7 +1372,7 @@
case FB_BLANK_NORMAL: /* just blank screen (backlight stays on) */
seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
lcdflags = par->PanelDispCntlReg1 & 0x02; /* LCD normal */
- dpmsflags = 0; /* no hsync/vsync suppression */
+ dpmsflags = 0x00; /* no hsync/vsync suppression */
break;
case FB_BLANK_UNBLANK: /* unblank */
seqflags = 0; /* Enable sequencer */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index d17c97d..675bd25 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1442,13 +1442,15 @@
&bytes_read, &smb_read_data,
&buf_type);
pSMBr = (struct smb_com_read_rsp *)smb_read_data;
- if (copy_to_user(current_offset,
- smb_read_data + 4 /* RFC1001 hdr */
- + le16_to_cpu(pSMBr->DataOffset),
- bytes_read)) {
- rc = -EFAULT;
- }
if (smb_read_data) {
+ if (copy_to_user(current_offset,
+ smb_read_data +
+ 4 /* RFC1001 length field */ +
+ le16_to_cpu(pSMBr->DataOffset),
+ bytes_read)) {
+ rc = -EFAULT;
+ }
+
if(buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(smb_read_data);
else if(buf_type == CIFS_LARGE_BUFFER)
diff --git a/fs/exec.c b/fs/exec.c
index 055378d..0e1c950 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1403,7 +1403,7 @@
do_each_thread(g,p) {
if (mm == p->mm && p != tsk &&
p->ptrace && p->parent->mm == mm) {
- __ptrace_unlink(p);
+ __ptrace_detach(p, 0);
}
} while_each_thread(g,p);
write_unlock_irq(&tasklist_lock);
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index e6265a0..543ed54 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -24,28 +24,7 @@
#include <linux/slab.h>
/*
- * Unlink a buffer from a transaction checkpoint list.
- *
- * Called with j_list_lock held.
- */
-
-static void __buffer_unlink_first(struct journal_head *jh)
-{
- transaction_t *transaction;
-
- transaction = jh->b_cp_transaction;
-
- jh->b_cpnext->b_cpprev = jh->b_cpprev;
- jh->b_cpprev->b_cpnext = jh->b_cpnext;
- if (transaction->t_checkpoint_list == jh) {
- transaction->t_checkpoint_list = jh->b_cpnext;
- if (transaction->t_checkpoint_list == jh)
- transaction->t_checkpoint_list = NULL;
- }
-}
-
-/*
- * Unlink a buffer from a transaction checkpoint(io) list.
+ * Unlink a buffer from a transaction.
*
* Called with j_list_lock held.
*/
@@ -55,44 +34,19 @@
transaction_t *transaction;
transaction = jh->b_cp_transaction;
+ jh->b_cp_transaction = NULL;
- __buffer_unlink_first(jh);
- if (transaction->t_checkpoint_io_list == jh) {
- transaction->t_checkpoint_io_list = jh->b_cpnext;
- if (transaction->t_checkpoint_io_list == jh)
- transaction->t_checkpoint_io_list = NULL;
- }
-}
-
-/*
- * Move a buffer from the checkpoint list to the checkpoint io list
- *
- * Called with j_list_lock held
- */
-
-static inline void __buffer_relink_io(struct journal_head *jh)
-{
- transaction_t *transaction;
-
- transaction = jh->b_cp_transaction;
- __buffer_unlink_first(jh);
-
- if (!transaction->t_checkpoint_io_list) {
- jh->b_cpnext = jh->b_cpprev = jh;
- } else {
- jh->b_cpnext = transaction->t_checkpoint_io_list;
- jh->b_cpprev = transaction->t_checkpoint_io_list->b_cpprev;
- jh->b_cpprev->b_cpnext = jh;
- jh->b_cpnext->b_cpprev = jh;
- }
- transaction->t_checkpoint_io_list = jh;
+ jh->b_cpnext->b_cpprev = jh->b_cpprev;
+ jh->b_cpprev->b_cpnext = jh->b_cpnext;
+ if (transaction->t_checkpoint_list == jh)
+ transaction->t_checkpoint_list = jh->b_cpnext;
+ if (transaction->t_checkpoint_list == jh)
+ transaction->t_checkpoint_list = NULL;
}
/*
* Try to release a checkpointed buffer from its transaction.
- * Returns 1 if we released it and 2 if we also released the
- * whole transaction.
- *
+ * Returns 1 if we released it.
* Requires j_list_lock
* Called under jbd_lock_bh_state(jh2bh(jh)), and drops it
*/
@@ -103,11 +57,12 @@
if (jh->b_jlist == BJ_None && !buffer_locked(bh) && !buffer_dirty(bh)) {
JBUFFER_TRACE(jh, "remove from checkpoint list");
- ret = __journal_remove_checkpoint(jh) + 1;
+ __journal_remove_checkpoint(jh);
jbd_unlock_bh_state(bh);
journal_remove_journal_head(bh);
BUFFER_TRACE(bh, "release");
__brelse(bh);
+ ret = 1;
} else {
jbd_unlock_bh_state(bh);
}
@@ -162,53 +117,83 @@
}
/*
- * Clean up transaction's list of buffers submitted for io.
- * We wait for any pending IO to complete and remove any clean
- * buffers. Note that we take the buffers in the opposite ordering
- * from the one in which they were submitted for IO.
+ * Clean up a transaction's checkpoint list.
+ *
+ * We wait for any pending IO to complete and make sure any clean
+ * buffers are removed from the transaction.
+ *
+ * Return 1 if we performed any actions which might have destroyed the
+ * checkpoint. (journal_remove_checkpoint() deletes the transaction when
+ * the last checkpoint buffer is cleansed)
*
* Called with j_list_lock held.
*/
-
-static void __wait_cp_io(journal_t *journal, transaction_t *transaction)
+static int __cleanup_transaction(journal_t *journal, transaction_t *transaction)
{
- struct journal_head *jh;
+ struct journal_head *jh, *next_jh, *last_jh;
struct buffer_head *bh;
- tid_t this_tid;
- int released = 0;
+ int ret = 0;
- this_tid = transaction->t_tid;
-restart:
- /* Didn't somebody clean up the transaction in the meanwhile */
- if (journal->j_checkpoint_transactions != transaction ||
- transaction->t_tid != this_tid)
- return;
- while (!released && transaction->t_checkpoint_io_list) {
- jh = transaction->t_checkpoint_io_list;
+ assert_spin_locked(&journal->j_list_lock);
+ jh = transaction->t_checkpoint_list;
+ if (!jh)
+ return 0;
+
+ last_jh = jh->b_cpprev;
+ next_jh = jh;
+ do {
+ jh = next_jh;
bh = jh2bh(jh);
- if (!jbd_trylock_bh_state(bh)) {
- jbd_sync_bh(journal, bh);
- spin_lock(&journal->j_list_lock);
- goto restart;
- }
if (buffer_locked(bh)) {
atomic_inc(&bh->b_count);
spin_unlock(&journal->j_list_lock);
- jbd_unlock_bh_state(bh);
wait_on_buffer(bh);
/* the journal_head may have gone by now */
BUFFER_TRACE(bh, "brelse");
__brelse(bh);
- spin_lock(&journal->j_list_lock);
- goto restart;
+ goto out_return_1;
}
+
/*
- * Now in whatever state the buffer currently is, we know that
- * it has been written out and so we can drop it from the list
+ * This is foul
*/
- released = __journal_remove_checkpoint(jh);
- jbd_unlock_bh_state(bh);
- }
+ if (!jbd_trylock_bh_state(bh)) {
+ jbd_sync_bh(journal, bh);
+ goto out_return_1;
+ }
+
+ if (jh->b_transaction != NULL) {
+ transaction_t *t = jh->b_transaction;
+ tid_t tid = t->t_tid;
+
+ spin_unlock(&journal->j_list_lock);
+ jbd_unlock_bh_state(bh);
+ log_start_commit(journal, tid);
+ log_wait_commit(journal, tid);
+ goto out_return_1;
+ }
+
+ /*
+ * AKPM: I think the buffer_jbddirty test is redundant - it
+ * shouldn't have NULL b_transaction?
+ */
+ next_jh = jh->b_cpnext;
+ if (!buffer_dirty(bh) && !buffer_jbddirty(bh)) {
+ BUFFER_TRACE(bh, "remove from checkpoint");
+ __journal_remove_checkpoint(jh);
+ jbd_unlock_bh_state(bh);
+ journal_remove_journal_head(bh);
+ __brelse(bh);
+ ret = 1;
+ } else {
+ jbd_unlock_bh_state(bh);
+ }
+ } while (jh != last_jh);
+
+ return ret;
+out_return_1:
+ spin_lock(&journal->j_list_lock);
+ return 1;
}
#define NR_BATCH 64
@@ -218,7 +203,9 @@
{
int i;
+ spin_unlock(&journal->j_list_lock);
ll_rw_block(SWRITE, *batch_count, bhs);
+ spin_lock(&journal->j_list_lock);
for (i = 0; i < *batch_count; i++) {
struct buffer_head *bh = bhs[i];
clear_buffer_jwrite(bh);
@@ -234,46 +221,19 @@
* Return 1 if something happened which requires us to abort the current
* scan of the checkpoint list.
*
- * Called with j_list_lock held and drops it if 1 is returned
+ * Called with j_list_lock held.
* Called under jbd_lock_bh_state(jh2bh(jh)), and drops it
*/
-static int __process_buffer(journal_t *journal, struct journal_head *jh,
- struct buffer_head **bhs, int *batch_count)
+static int __flush_buffer(journal_t *journal, struct journal_head *jh,
+ struct buffer_head **bhs, int *batch_count,
+ int *drop_count)
{
struct buffer_head *bh = jh2bh(jh);
int ret = 0;
- if (buffer_locked(bh)) {
- get_bh(bh);
- spin_unlock(&journal->j_list_lock);
- jbd_unlock_bh_state(bh);
- wait_on_buffer(bh);
- /* the journal_head may have gone by now */
- BUFFER_TRACE(bh, "brelse");
- put_bh(bh);
- ret = 1;
- }
- else if (jh->b_transaction != NULL) {
- transaction_t *t = jh->b_transaction;
- tid_t tid = t->t_tid;
+ if (buffer_dirty(bh) && !buffer_locked(bh) && jh->b_jlist == BJ_None) {
+ J_ASSERT_JH(jh, jh->b_transaction == NULL);
- spin_unlock(&journal->j_list_lock);
- jbd_unlock_bh_state(bh);
- log_start_commit(journal, tid);
- log_wait_commit(journal, tid);
- ret = 1;
- }
- else if (!buffer_dirty(bh)) {
- J_ASSERT_JH(jh, !buffer_jbddirty(bh));
- BUFFER_TRACE(bh, "remove from checkpoint");
- __journal_remove_checkpoint(jh);
- spin_unlock(&journal->j_list_lock);
- jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh);
- put_bh(bh);
- ret = 1;
- }
- else {
/*
* Important: we are about to write the buffer, and
* possibly block, while still holding the journal lock.
@@ -286,30 +246,45 @@
J_ASSERT_BH(bh, !buffer_jwrite(bh));
set_buffer_jwrite(bh);
bhs[*batch_count] = bh;
- __buffer_relink_io(jh);
jbd_unlock_bh_state(bh);
(*batch_count)++;
if (*batch_count == NR_BATCH) {
- spin_unlock(&journal->j_list_lock);
__flush_batch(journal, bhs, batch_count);
ret = 1;
}
+ } else {
+ int last_buffer = 0;
+ if (jh->b_cpnext == jh) {
+ /* We may be about to drop the transaction. Tell the
+ * caller that the lists have changed.
+ */
+ last_buffer = 1;
+ }
+ if (__try_to_free_cp_buf(jh)) {
+ (*drop_count)++;
+ ret = last_buffer;
+ }
}
return ret;
}
/*
- * Perform an actual checkpoint. We take the first transaction on the
- * list of transactions to be checkpointed and send all its buffers
- * to disk. We submit larger chunks of data at once.
+ * Perform an actual checkpoint. We don't write out only enough to
+ * satisfy the current blocked requests: rather we submit a reasonably
+ * sized chunk of the outstanding data to disk at once for
+ * efficiency. __log_wait_for_space() will retry if we didn't free enough.
*
+ * However, we _do_ take into account the amount requested so that once
+ * the IO has been queued, we can return as soon as enough of it has
+ * completed to disk.
+ *
* The journal should be locked before calling this function.
*/
int log_do_checkpoint(journal_t *journal)
{
- transaction_t *transaction;
- tid_t this_tid;
int result;
+ int batch_count = 0;
+ struct buffer_head *bhs[NR_BATCH];
jbd_debug(1, "Start checkpoint\n");
@@ -324,70 +299,79 @@
return result;
/*
- * OK, we need to start writing disk blocks. Take one transaction
- * and write it.
+ * OK, we need to start writing disk blocks. Try to free up a
+ * quarter of the log in a single checkpoint if we can.
+ */
+ /*
+ * AKPM: check this code. I had a feeling a while back that it
+ * degenerates into a busy loop at unmount time.
*/
spin_lock(&journal->j_list_lock);
- if (!journal->j_checkpoint_transactions)
- goto out;
- transaction = journal->j_checkpoint_transactions;
- this_tid = transaction->t_tid;
-restart:
- /*
- * If someone cleaned up this transaction while we slept, we're
- * done (maybe it's a new transaction, but it fell at the same
- * address).
- */
- if (journal->j_checkpoint_transactions == transaction &&
- transaction->t_tid == this_tid) {
- int batch_count = 0;
- struct buffer_head *bhs[NR_BATCH];
- struct journal_head *jh;
- int retry = 0;
+ while (journal->j_checkpoint_transactions) {
+ transaction_t *transaction;
+ struct journal_head *jh, *last_jh, *next_jh;
+ int drop_count = 0;
+ int cleanup_ret, retry = 0;
+ tid_t this_tid;
- while (!retry && transaction->t_checkpoint_list) {
+ transaction = journal->j_checkpoint_transactions;
+ this_tid = transaction->t_tid;
+ jh = transaction->t_checkpoint_list;
+ last_jh = jh->b_cpprev;
+ next_jh = jh;
+ do {
struct buffer_head *bh;
- jh = transaction->t_checkpoint_list;
+ jh = next_jh;
+ next_jh = jh->b_cpnext;
bh = jh2bh(jh);
if (!jbd_trylock_bh_state(bh)) {
jbd_sync_bh(journal, bh);
+ spin_lock(&journal->j_list_lock);
retry = 1;
break;
}
- retry = __process_buffer(journal, jh, bhs,
- &batch_count);
- if (!retry &&
- lock_need_resched(&journal->j_list_lock)) {
- spin_unlock(&journal->j_list_lock);
+ retry = __flush_buffer(journal, jh, bhs, &batch_count, &drop_count);
+ if (cond_resched_lock(&journal->j_list_lock)) {
retry = 1;
break;
}
- }
+ } while (jh != last_jh && !retry);
if (batch_count) {
- if (!retry) {
- spin_unlock(&journal->j_list_lock);
- retry = 1;
- }
__flush_batch(journal, bhs, &batch_count);
+ retry = 1;
}
- if (retry) {
- spin_lock(&journal->j_list_lock);
- goto restart;
- }
/*
- * Now we have cleaned up the first transaction's checkpoint
- * list. Let's clean up the second one.
+ * If someone cleaned up this transaction while we slept, we're
+ * done
*/
- __wait_cp_io(journal, transaction);
+ if (journal->j_checkpoint_transactions != transaction)
+ break;
+ if (retry)
+ continue;
+ /*
+ * Maybe it's a new transaction, but it fell at the same
+ * address
+ */
+ if (transaction->t_tid != this_tid)
+ continue;
+ /*
+ * We have walked the whole transaction list without
+ * finding anything to write to disk. We had better be
+ * able to make some progress or we are in trouble.
+ */
+ cleanup_ret = __cleanup_transaction(journal, transaction);
+ J_ASSERT(drop_count != 0 || cleanup_ret != 0);
+ if (journal->j_checkpoint_transactions != transaction)
+ break;
}
-out:
spin_unlock(&journal->j_list_lock);
result = cleanup_journal_tail(journal);
if (result < 0)
return result;
+
return 0;
}
@@ -472,91 +456,52 @@
/* Checkpoint list management */
/*
- * journal_clean_one_cp_list
- *
- * Find all the written-back checkpoint buffers in the given list and release them.
- *
- * Called with the journal locked.
- * Called with j_list_lock held.
- * Returns number of bufers reaped (for debug)
- */
-
-static int journal_clean_one_cp_list(struct journal_head *jh, int *released)
-{
- struct journal_head *last_jh;
- struct journal_head *next_jh = jh;
- int ret, freed = 0;
-
- *released = 0;
- if (!jh)
- return 0;
-
- last_jh = jh->b_cpprev;
- do {
- jh = next_jh;
- next_jh = jh->b_cpnext;
- /* Use trylock because of the ranking */
- if (jbd_trylock_bh_state(jh2bh(jh))) {
- ret = __try_to_free_cp_buf(jh);
- if (ret) {
- freed++;
- if (ret == 2) {
- *released = 1;
- return freed;
- }
- }
- }
- /*
- * This function only frees up some memory if possible so we
- * dont have an obligation to finish processing. Bail out if
- * preemption requested:
- */
- if (need_resched())
- return freed;
- } while (jh != last_jh);
-
- return freed;
-}
-
-/*
* journal_clean_checkpoint_list
*
* Find all the written-back checkpoint buffers in the journal and release them.
*
* Called with the journal locked.
* Called with j_list_lock held.
- * Returns number of buffers reaped (for debug)
+ * Returns number of bufers reaped (for debug)
*/
int __journal_clean_checkpoint_list(journal_t *journal)
{
transaction_t *transaction, *last_transaction, *next_transaction;
- int ret = 0, released;
+ int ret = 0;
transaction = journal->j_checkpoint_transactions;
- if (!transaction)
+ if (transaction == 0)
goto out;
last_transaction = transaction->t_cpprev;
next_transaction = transaction;
do {
+ struct journal_head *jh;
+
transaction = next_transaction;
next_transaction = transaction->t_cpnext;
- ret += journal_clean_one_cp_list(transaction->
- t_checkpoint_list, &released);
- if (need_resched())
- goto out;
- if (released)
- continue;
- /*
- * It is essential that we are as careful as in the case of
- * t_checkpoint_list with removing the buffer from the list as
- * we can possibly see not yet submitted buffers on io_list
- */
- ret += journal_clean_one_cp_list(transaction->
- t_checkpoint_io_list, &released);
- if (need_resched())
- goto out;
+ jh = transaction->t_checkpoint_list;
+ if (jh) {
+ struct journal_head *last_jh = jh->b_cpprev;
+ struct journal_head *next_jh = jh;
+
+ do {
+ jh = next_jh;
+ next_jh = jh->b_cpnext;
+ /* Use trylock because of the ranknig */
+ if (jbd_trylock_bh_state(jh2bh(jh)))
+ ret += __try_to_free_cp_buf(jh);
+ /*
+ * This function only frees up some memory
+ * if possible so we dont have an obligation
+ * to finish processing. Bail out if preemption
+ * requested:
+ */
+ if (need_resched())
+ goto out;
+ } while (jh != last_jh);
+ }
} while (transaction != last_transaction);
out:
return ret;
@@ -571,22 +516,18 @@
* buffer updates committed in that transaction have safely been stored
* elsewhere on disk. To achieve this, all of the buffers in a
* transaction need to be maintained on the transaction's checkpoint
- * lists until they have been rewritten, at which point this function is
+ * list until they have been rewritten, at which point this function is
* called to remove the buffer from the existing transaction's
- * checkpoint lists.
- *
- * The function returns 1 if it frees the transaction, 0 otherwise.
+ * checkpoint list.
*
* This function is called with the journal locked.
* This function is called with j_list_lock held.
- * This function is called with jbd_lock_bh_state(jh2bh(jh))
*/
-int __journal_remove_checkpoint(struct journal_head *jh)
+void __journal_remove_checkpoint(struct journal_head *jh)
{
transaction_t *transaction;
journal_t *journal;
- int ret = 0;
JBUFFER_TRACE(jh, "entry");
@@ -597,10 +538,8 @@
journal = transaction->t_journal;
__buffer_unlink(jh);
- jh->b_cp_transaction = NULL;
- if (transaction->t_checkpoint_list != NULL ||
- transaction->t_checkpoint_io_list != NULL)
+ if (transaction->t_checkpoint_list != NULL)
goto out;
JBUFFER_TRACE(jh, "transaction has no more buffers");
@@ -626,10 +565,8 @@
/* Just in case anybody was waiting for more transactions to be
checkpointed... */
wake_up(&journal->j_wait_logspace);
- ret = 1;
out:
JBUFFER_TRACE(jh, "exit");
- return ret;
}
/*
@@ -691,7 +628,6 @@
J_ASSERT(transaction->t_shadow_list == NULL);
J_ASSERT(transaction->t_log_list == NULL);
J_ASSERT(transaction->t_checkpoint_list == NULL);
- J_ASSERT(transaction->t_checkpoint_io_list == NULL);
J_ASSERT(transaction->t_updates == 0);
J_ASSERT(journal->j_committing_transaction != transaction);
J_ASSERT(journal->j_running_transaction != transaction);
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 29e62d9..002ad2b 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -829,8 +829,7 @@
journal->j_committing_transaction = NULL;
spin_unlock(&journal->j_state_lock);
- if (commit_transaction->t_checkpoint_list == NULL &&
- commit_transaction->t_checkpoint_io_list == NULL) {
+ if (commit_transaction->t_checkpoint_list == NULL) {
__journal_drop_transaction(journal, commit_transaction);
} else {
if (journal->j_checkpoint_transactions == NULL) {
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index 3eaf6e7..da6354b 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -111,9 +111,10 @@
/*
* The server lockd has called us back to tell us the lock was granted
*/
-u32
-nlmclnt_grant(struct nlm_lock *lock)
+u32 nlmclnt_grant(const struct sockaddr_in *addr, const struct nlm_lock *lock)
{
+ const struct file_lock *fl = &lock->fl;
+ const struct nfs_fh *fh = &lock->fh;
struct nlm_wait *block;
u32 res = nlm_lck_denied;
@@ -122,14 +123,20 @@
* Warning: must not use cookie to match it!
*/
list_for_each_entry(block, &nlm_blocked, b_list) {
- if (nlm_compare_locks(block->b_lock, &lock->fl)) {
- /* Alright, we found a lock. Set the return status
- * and wake up the caller
- */
- block->b_status = NLM_LCK_GRANTED;
- wake_up(&block->b_wait);
- res = nlm_granted;
- }
+ struct file_lock *fl_blocked = block->b_lock;
+
+ if (!nlm_compare_locks(fl_blocked, fl))
+ continue;
+ if (!nlm_cmp_addr(&block->b_host->h_addr, addr))
+ continue;
+ if (nfs_compare_fh(NFS_FH(fl_blocked->fl_file->f_dentry->d_inode) ,fh) != 0)
+ continue;
+ /* Alright, we found a lock. Set the return status
+ * and wake up the caller
+ */
+ block->b_status = NLM_LCK_GRANTED;
+ wake_up(&block->b_wait);
+ res = nlm_granted;
}
return res;
}
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 4063095..b10f913 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -228,7 +228,7 @@
resp->cookie = argp->cookie;
dprintk("lockd: GRANTED called\n");
- resp->status = nlmclnt_grant(&argp->lock);
+ resp->status = nlmclnt_grant(&rqstp->rq_addr, &argp->lock);
dprintk("lockd: GRANTED status %d\n", ntohl(resp->status));
return rpc_success;
}
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 3bc437e..35681d9 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -256,7 +256,7 @@
resp->cookie = argp->cookie;
dprintk("lockd: GRANTED called\n");
- resp->status = nlmclnt_grant(&argp->lock);
+ resp->status = nlmclnt_grant(&rqstp->rq_addr, &argp->lock);
dprintk("lockd: GRANTED status %d\n", ntohl(resp->status));
return rpc_success;
}
diff --git a/include/asm-alpha/mman.h b/include/asm-alpha/mman.h
index f643953..a21515c 100644
--- a/include/asm-alpha/mman.h
+++ b/include/asm-alpha/mman.h
@@ -43,6 +43,8 @@
#define MADV_SPACEAVAIL 5 /* ensure resources are available */
#define MADV_DONTNEED 6 /* don't need these pages */
#define MADV_REMOVE 7 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-arm/mman.h b/include/asm-arm/mman.h
index f0bebca..693ed85 100644
--- a/include/asm-arm/mman.h
+++ b/include/asm-arm/mman.h
@@ -36,6 +36,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-arm26/mman.h b/include/asm-arm26/mman.h
index 0ed7780..2096c50 100644
--- a/include/asm-arm26/mman.h
+++ b/include/asm-arm26/mman.h
@@ -36,6 +36,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-cris/mman.h b/include/asm-cris/mman.h
index 5a382b8..deddfb2 100644
--- a/include/asm-cris/mman.h
+++ b/include/asm-cris/mman.h
@@ -38,6 +38,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-frv/atomic.h b/include/asm-frv/atomic.h
index a59f684..5d9f84b 100644
--- a/include/asm-frv/atomic.h
+++ b/include/asm-frv/atomic.h
@@ -220,9 +220,9 @@
switch (sizeof(__xg_orig)) { \
case 4: \
asm volatile( \
- "swap%I0 %2,%M0" \
- : "+m"(*__xg_ptr), "=&r"(__xg_orig) \
- : "r"(x) \
+ "swap%I0 %M0,%1" \
+ : "+m"(*__xg_ptr), "=r"(__xg_orig) \
+ : "1"(x) \
: "memory" \
); \
break; \
diff --git a/include/asm-frv/cacheflush.h b/include/asm-frv/cacheflush.h
index 3007dec..eaa5826 100644
--- a/include/asm-frv/cacheflush.h
+++ b/include/asm-frv/cacheflush.h
@@ -87,5 +87,17 @@
flush_icache_user_range(vma, page, page_to_phys(page), PAGE_SIZE);
}
+/*
+ * permit ptrace to access another process's address space through the icache
+ * and the dcache
+ */
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+do { \
+ memcpy((dst), (src), (len)); \
+ flush_icache_user_range((vma), (page), (vaddr), (len)); \
+} while(0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy((dst), (src), (len))
#endif /* _ASM_CACHEFLUSH_H */
diff --git a/include/asm-frv/io.h b/include/asm-frv/io.h
index 075369b..01247cb 100644
--- a/include/asm-frv/io.h
+++ b/include/asm-frv/io.h
@@ -251,7 +251,6 @@
#define IOMAP_WRITETHROUGH 3
extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
-extern void __iounmap(void __iomem *addr, unsigned long size);
static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
{
diff --git a/include/asm-frv/mman.h b/include/asm-frv/mman.h
index 8af4a41..d3bca30 100644
--- a/include/asm-frv/mman.h
+++ b/include/asm-frv/mman.h
@@ -36,6 +36,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-frv/spr-regs.h b/include/asm-frv/spr-regs.h
index ef472f0..c2a541e 100644
--- a/include/asm-frv/spr-regs.h
+++ b/include/asm-frv/spr-regs.h
@@ -98,6 +98,7 @@
#define TBR_TT_TRAP0 (0x80 << 4)
#define TBR_TT_TRAP1 (0x81 << 4)
#define TBR_TT_TRAP2 (0x82 << 4)
+#define TBR_TT_TRAP3 (0x83 << 4)
#define TBR_TT_TRAP126 (0xfe << 4)
#define TBR_TT_BREAK (0xff << 4)
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h
index d2aea70..f72ff0c 100644
--- a/include/asm-frv/system.h
+++ b/include/asm-frv/system.h
@@ -40,8 +40,84 @@
/*
* interrupt flag manipulation
+ * - use virtual interrupt management since touching the PSR is slow
+ * - ICC2.Z: T if interrupts virtually disabled
+ * - ICC2.C: F if interrupts really disabled
+ * - if Z==1 upon interrupt:
+ * - C is set to 0
+ * - interrupts are really disabled
+ * - entry.S returns immediately
+ * - uses TIHI (TRAP if Z==0 && C==0) #2 to really reenable interrupts
+ * - if taken, the trap:
+ * - sets ICC2.C
+ * - enables interrupts
*/
-#define local_irq_disable() \
+#define local_irq_disable() \
+do { \
+ /* set Z flag, but don't change the C flag */ \
+ asm volatile(" andcc gr0,gr0,gr0,icc2 \n" \
+ : \
+ : \
+ : "memory", "icc2" \
+ ); \
+} while(0)
+
+#define local_irq_enable() \
+do { \
+ /* clear Z flag and then test the C flag */ \
+ asm volatile(" oricc gr0,#1,gr0,icc2 \n" \
+ " tihi icc2,gr0,#2 \n" \
+ : \
+ : \
+ : "memory", "icc2" \
+ ); \
+} while(0)
+
+#define local_save_flags(flags) \
+do { \
+ typecheck(unsigned long, flags); \
+ asm volatile("movsg ccr,%0" \
+ : "=r"(flags) \
+ : \
+ : "memory"); \
+ \
+ /* shift ICC2.Z to bit 0 */ \
+ flags >>= 26; \
+ \
+ /* make flags 1 if interrupts disabled, 0 otherwise */ \
+ flags &= 1UL; \
+} while(0)
+
+#define irqs_disabled() \
+ ({unsigned long flags; local_save_flags(flags); flags; })
+
+#define local_irq_save(flags) \
+do { \
+ typecheck(unsigned long, flags); \
+ local_save_flags(flags); \
+ local_irq_disable(); \
+} while(0)
+
+#define local_irq_restore(flags) \
+do { \
+ typecheck(unsigned long, flags); \
+ \
+ /* load the Z flag by turning 1 if disabled into 0 if disabled \
+ * and thus setting the Z flag but not the C flag */ \
+ asm volatile(" xoricc %0,#1,gr0,icc2 \n" \
+ /* then test Z=0 and C=0 */ \
+ " tihi icc2,gr0,#2 \n" \
+ : \
+ : "r"(flags) \
+ : "memory", "icc2" \
+ ); \
+ \
+} while(0)
+
+/*
+ * real interrupt flag manipulation
+ */
+#define __local_irq_disable() \
do { \
unsigned long psr; \
asm volatile(" movsg psr,%0 \n" \
@@ -53,7 +129,7 @@
: "memory"); \
} while(0)
-#define local_irq_enable() \
+#define __local_irq_enable() \
do { \
unsigned long psr; \
asm volatile(" movsg psr,%0 \n" \
@@ -64,7 +140,7 @@
: "memory"); \
} while(0)
-#define local_save_flags(flags) \
+#define __local_save_flags(flags) \
do { \
typecheck(unsigned long, flags); \
asm("movsg psr,%0" \
@@ -73,7 +149,7 @@
: "memory"); \
} while(0)
-#define local_irq_save(flags) \
+#define __local_irq_save(flags) \
do { \
unsigned long npsr; \
typecheck(unsigned long, flags); \
@@ -86,7 +162,7 @@
: "memory"); \
} while(0)
-#define local_irq_restore(flags) \
+#define __local_irq_restore(flags) \
do { \
typecheck(unsigned long, flags); \
asm volatile(" movgs %0,psr \n" \
@@ -95,7 +171,7 @@
: "memory"); \
} while(0)
-#define irqs_disabled() \
+#define __irqs_disabled() \
((__get_PSR() & PSR_PIL) >= PSR_PIL_14)
/*
diff --git a/include/asm-frv/uaccess.h b/include/asm-frv/uaccess.h
index b6bcbe0..a1d1404 100644
--- a/include/asm-frv/uaccess.h
+++ b/include/asm-frv/uaccess.h
@@ -306,7 +306,4 @@
extern unsigned long search_exception_table(unsigned long addr);
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len)
-
#endif /* _ASM_UACCESS_H */
diff --git a/include/asm-frv/unistd.h b/include/asm-frv/unistd.h
index 4d994d2..322531c 100644
--- a/include/asm-frv/unistd.h
+++ b/include/asm-frv/unistd.h
@@ -295,13 +295,29 @@
#define __NR_add_key 286
#define __NR_request_key 287
#define __NR_keyctl 288
-#define __NR_vperfctr_open 289
-#define __NR_vperfctr_control (__NR_perfctr_info+1)
-#define __NR_vperfctr_unlink (__NR_perfctr_info+2)
-#define __NR_vperfctr_iresume (__NR_perfctr_info+3)
-#define __NR_vperfctr_read (__NR_perfctr_info+4)
+#define __NR_ioprio_set 289
+#define __NR_ioprio_get 290
+#define __NR_inotify_init 291
+#define __NR_inotify_add_watch 292
+#define __NR_inotify_rm_watch 293
+#define __NR_migrate_pages 294
+#define __NR_openat 295
+#define __NR_mkdirat 296
+#define __NR_mknodat 297
+#define __NR_fchownat 298
+#define __NR_futimesat 299
+#define __NR_newfstatat 300
+#define __NR_unlinkat 301
+#define __NR_renameat 302
+#define __NR_linkat 303
+#define __NR_symlinkat 304
+#define __NR_readlinkat 305
+#define __NR_fchmodat 306
+#define __NR_faccessat 307
+#define __NR_pselect6 308
+#define __NR_ppoll 309
-#define NR_syscalls 294
+#define NR_syscalls 310
/*
* process the return value of a syscall, consigning it to one of two possible fates
diff --git a/include/asm-h8300/mman.h b/include/asm-h8300/mman.h
index 744a8fb..ac0346f 100644
--- a/include/asm-h8300/mman.h
+++ b/include/asm-h8300/mman.h
@@ -36,6 +36,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-i386/mman.h b/include/asm-i386/mman.h
index ba4941e..ab2339a 100644
--- a/include/asm-i386/mman.h
+++ b/include/asm-i386/mman.h
@@ -36,6 +36,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-i386/topology.h b/include/asm-i386/topology.h
index af503a1..aa958c6 100644
--- a/include/asm-i386/topology.h
+++ b/include/asm-i386/topology.h
@@ -27,7 +27,7 @@
#ifndef _ASM_I386_TOPOLOGY_H
#define _ASM_I386_TOPOLOGY_H
-#ifdef CONFIG_SMP
+#ifdef CONFIG_X86_HT
#define topology_physical_package_id(cpu) \
(phys_proc_id[cpu] == BAD_APICID ? -1 : phys_proc_id[cpu])
#define topology_core_id(cpu) \
diff --git a/include/asm-ia64/machvec_sn2.h b/include/asm-ia64/machvec_sn2.h
index e1b6cd63..03d00fa 100644
--- a/include/asm-ia64/machvec_sn2.h
+++ b/include/asm-ia64/machvec_sn2.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2002-2003 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2002-2003, 2006 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
@@ -20,11 +20,6 @@
* License along with this program; if not, write the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan
diff --git a/include/asm-ia64/mman.h b/include/asm-ia64/mman.h
index 828beb2..357ebb7 100644
--- a/include/asm-ia64/mman.h
+++ b/include/asm-ia64/mman.h
@@ -44,6 +44,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-ia64/sn/arch.h b/include/asm-ia64/sn/arch.h
index 1a3831c..91c31be8 100644
--- a/include/asm-ia64/sn/arch.h
+++ b/include/asm-ia64/sn/arch.h
@@ -70,7 +70,7 @@
* Compact node ID to nasid mappings kept in the per-cpu data areas of each
* cpu.
*/
-DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);
+DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]);
#define sn_cnodeid_to_nasid (&__get_cpu_var(__sn_cnodeid_to_nasid[0]))
diff --git a/include/asm-ia64/sn/bte.h b/include/asm-ia64/sn/bte.h
index 01e5b41..5335d87 100644
--- a/include/asm-ia64/sn/bte.h
+++ b/include/asm-ia64/sn/bte.h
@@ -46,7 +46,7 @@
#define BTES_PER_NODE (is_shub2() ? 4 : 2)
#define MAX_BTES_PER_NODE 4
-#define BTE2OFF_CTRL (0)
+#define BTE2OFF_CTRL 0
#define BTE2OFF_SRC (SH2_BT_ENG_SRC_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE2OFF_DEST (SH2_BT_ENG_DEST_ADDR_0 - SH2_BT_ENG_CSR_0)
#define BTE2OFF_NOTIFY (SH2_BT_ENG_NOTIF_ADDR_0 - SH2_BT_ENG_CSR_0)
@@ -75,11 +75,11 @@
: base + (BTEOFF_NOTIFY/8))
/* Define hardware modes */
-#define BTE_NOTIFY (IBCT_NOTIFY)
+#define BTE_NOTIFY IBCT_NOTIFY
#define BTE_NORMAL BTE_NOTIFY
#define BTE_ZERO_FILL (BTE_NOTIFY | IBCT_ZFIL_MODE)
/* Use a reserved bit to let the caller specify a wait for any BTE */
-#define BTE_WACQUIRE (0x4000)
+#define BTE_WACQUIRE 0x4000
/* Use the BTE on the node with the destination memory */
#define BTE_USE_DEST (BTE_WACQUIRE << 1)
/* Use any available BTE interface on any node for the transfer */
diff --git a/include/asm-ia64/sn/pcibr_provider.h b/include/asm-ia64/sn/pcibr_provider.h
index 9334078..a601d3af 100644
--- a/include/asm-ia64/sn/pcibr_provider.h
+++ b/include/asm-ia64/sn/pcibr_provider.h
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1992-1997,2000-2004 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 1992-1997,2000-2006 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PCI_PCIBR_PROVIDER_H
#define _ASM_IA64_SN_PCI_PCIBR_PROVIDER_H
@@ -115,18 +115,6 @@
spinlock_t pbi_lock;
};
-/*
- * pcibus_info structure locking macros
- */
-inline static unsigned long
-pcibr_lock(struct pcibus_info *pcibus_info)
-{
- unsigned long flag;
- spin_lock_irqsave(&pcibus_info->pbi_lock, flag);
- return(flag);
-}
-#define pcibr_unlock(pcibus_info, flag) spin_unlock_irqrestore(&pcibus_info->pbi_lock, flag)
-
extern int pcibr_init_provider(void);
extern void *pcibr_bus_fixup(struct pcibus_bussoft *, struct pci_controller *);
extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t);
diff --git a/include/asm-ia64/sn/sn_feature_sets.h b/include/asm-ia64/sn/sn_feature_sets.h
index 9ca642c..ff33e3b 100644
--- a/include/asm-ia64/sn/sn_feature_sets.h
+++ b/include/asm-ia64/sn/sn_feature_sets.h
@@ -12,9 +12,6 @@
*/
-#include <asm/types.h>
-#include <asm/bitops.h>
-
/* --------------------- PROM Features -----------------------------*/
extern int sn_prom_feature_available(int id);
diff --git a/include/asm-ia64/sn/xpc.h b/include/asm-ia64/sn/xpc.h
index 0c36928..df7f5f4 100644
--- a/include/asm-ia64/sn/xpc.h
+++ b/include/asm-ia64/sn/xpc.h
@@ -508,19 +508,24 @@
#define XPC_C_OPENREQUEST 0x00000010 /* local open channel request */
#define XPC_C_SETUP 0x00000020 /* channel's msgqueues are alloc'd */
-#define XPC_C_CONNECTCALLOUT 0x00000040 /* channel connected callout made */
-#define XPC_C_CONNECTED 0x00000080 /* local channel is connected */
-#define XPC_C_CONNECTING 0x00000100 /* channel is being connected */
+#define XPC_C_CONNECTEDCALLOUT 0x00000040 /* connected callout initiated */
+#define XPC_C_CONNECTEDCALLOUT_MADE \
+ 0x00000080 /* connected callout completed */
+#define XPC_C_CONNECTED 0x00000100 /* local channel is connected */
+#define XPC_C_CONNECTING 0x00000200 /* channel is being connected */
-#define XPC_C_RCLOSEREPLY 0x00000200 /* remote close channel reply */
-#define XPC_C_CLOSEREPLY 0x00000400 /* local close channel reply */
-#define XPC_C_RCLOSEREQUEST 0x00000800 /* remote close channel request */
-#define XPC_C_CLOSEREQUEST 0x00001000 /* local close channel request */
+#define XPC_C_RCLOSEREPLY 0x00000400 /* remote close channel reply */
+#define XPC_C_CLOSEREPLY 0x00000800 /* local close channel reply */
+#define XPC_C_RCLOSEREQUEST 0x00001000 /* remote close channel request */
+#define XPC_C_CLOSEREQUEST 0x00002000 /* local close channel request */
-#define XPC_C_DISCONNECTED 0x00002000 /* channel is disconnected */
-#define XPC_C_DISCONNECTING 0x00004000 /* channel is being disconnected */
-#define XPC_C_DISCONNECTCALLOUT 0x00008000 /* chan disconnected callout made */
-#define XPC_C_WDISCONNECT 0x00010000 /* waiting for channel disconnect */
+#define XPC_C_DISCONNECTED 0x00004000 /* channel is disconnected */
+#define XPC_C_DISCONNECTING 0x00008000 /* channel is being disconnected */
+#define XPC_C_DISCONNECTINGCALLOUT \
+ 0x00010000 /* disconnecting callout initiated */
+#define XPC_C_DISCONNECTINGCALLOUT_MADE \
+ 0x00020000 /* disconnecting callout completed */
+#define XPC_C_WDISCONNECT 0x00040000 /* waiting for channel disconnect */
diff --git a/include/asm-ia64/timex.h b/include/asm-ia64/timex.h
index 414aae0..05a6baf 100644
--- a/include/asm-ia64/timex.h
+++ b/include/asm-ia64/timex.h
@@ -15,6 +15,8 @@
typedef unsigned long cycles_t;
+extern void (*ia64_udelay)(unsigned long usecs);
+
/*
* For performance reasons, we don't want to define CLOCK_TICK_TRATE as
* local_cpu_data->itc_rate. Fortunately, we don't have to, either: according to George
diff --git a/include/asm-m32r/mman.h b/include/asm-m32r/mman.h
index 12e2974..6b02fe3 100644
--- a/include/asm-m32r/mman.h
+++ b/include/asm-m32r/mman.h
@@ -38,6 +38,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-m68k/mman.h b/include/asm-m68k/mman.h
index ea262ab..efd12bc 100644
--- a/include/asm-m68k/mman.h
+++ b/include/asm-m68k/mman.h
@@ -36,6 +36,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h
index 934e063..818b9a97e 100644
--- a/include/asm-mips/cpu.h
+++ b/include/asm-mips/cpu.h
@@ -204,9 +204,9 @@
*/
#define MIPS_CPU_ISA_I 0x00000001
#define MIPS_CPU_ISA_II 0x00000002
-#define MIPS_CPU_ISA_III 0x00000003
-#define MIPS_CPU_ISA_IV 0x00000004
-#define MIPS_CPU_ISA_V 0x00000005
+#define MIPS_CPU_ISA_III 0x00000004
+#define MIPS_CPU_ISA_IV 0x00000008
+#define MIPS_CPU_ISA_V 0x00000010
#define MIPS_CPU_ISA_M32R1 0x00000020
#define MIPS_CPU_ISA_M32R2 0x00000040
#define MIPS_CPU_ISA_M64R1 0x00000080
diff --git a/include/asm-mips/gcc/sgidefs.h b/include/asm-mips/gcc/sgidefs.h
deleted file mode 100644
index 0599437..0000000
--- a/include/asm-mips/gcc/sgidefs.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * include/sgidefs.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996 by Ralf Baechle
- *
- * This file is here to satisfy GCC's expectations.
- */
-#ifndef __SGIDEFS_H
-#define __SGIDEFS_H
-
-#include <asm/sgidefs.h>
-
-#endif /* __SGIDEFS_H */
diff --git a/include/asm-mips/mach-generic/timex.h b/include/asm-mips/mach-generic/timex.h
index c6a2e5f..48b4cfa 100644
--- a/include/asm-mips/mach-generic/timex.h
+++ b/include/asm-mips/mach-generic/timex.h
@@ -3,20 +3,11 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2003 by Ralf Baechle
+ * Copyright (C) 2003, 2005 by Ralf Baechle
*/
#ifndef __ASM_MACH_GENERIC_TIMEX_H
#define __ASM_MACH_GENERIC_TIMEX_H
-#include <linux/config.h>
-
-/*
- * Last remaining user of the i8254 PIC, will be converted, too ...
- */
-#ifdef CONFIG_SNI_RM200_PCI
-#define CLOCK_TICK_RATE 1193182
-#else
#define CLOCK_TICK_RATE 500000
-#endif
#endif /* __ASM_MACH_GENERIC_TIMEX_H */
diff --git a/include/asm-mips/mach-rm200/timex.h b/include/asm-mips/mach-rm200/timex.h
new file mode 100644
index 0000000..11ff6cb
--- /dev/null
+++ b/include/asm-mips/mach-rm200/timex.h
@@ -0,0 +1,13 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 2005 by Ralf Baechle
+ */
+#ifndef __ASM_MACH_RM200_TIMEX_H
+#define __ASM_MACH_RM200_TIMEX_H
+
+#define CLOCK_TICK_RATE 1193182
+
+#endif /* __ASM_MACH_RM200_TIMEX_H */
diff --git a/include/asm-mips/mman.h b/include/asm-mips/mman.h
index dd17c8b..6d01e26 100644
--- a/include/asm-mips/mman.h
+++ b/include/asm-mips/mman.h
@@ -66,6 +66,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-mips/r4kcache.h b/include/asm-mips/r4kcache.h
index cc53196..9632c27 100644
--- a/include/asm-mips/r4kcache.h
+++ b/include/asm-mips/r4kcache.h
@@ -14,6 +14,7 @@
#include <asm/asm.h>
#include <asm/cacheops.h>
+#include <asm/cpu-features.h>
/*
* This macro return a properly sign-extended address suitable as base address
@@ -78,22 +79,25 @@
cache_op(Hit_Writeback_Inv_SD, addr);
}
+#define protected_cache_op(op,addr) \
+ __asm__ __volatile__( \
+ " .set push \n" \
+ " .set noreorder \n" \
+ " .set mips3 \n" \
+ "1: cache %0, (%1) \n" \
+ "2: .set pop \n" \
+ " .section __ex_table,\"a\" \n" \
+ " "STR(PTR)" 1b, 2b \n" \
+ " .previous" \
+ : \
+ : "i" (op), "r" (addr))
+
/*
* The next two are for badland addresses like signal trampolines.
*/
static inline void protected_flush_icache_line(unsigned long addr)
{
- __asm__ __volatile__(
- " .set push \n"
- " .set noreorder \n"
- " .set mips3 \n"
- "1: cache %0, (%1) \n"
- "2: .set pop \n"
- " .section __ex_table,\"a\" \n"
- " "STR(PTR)" 1b, 2b \n"
- " .previous"
- :
- : "i" (Hit_Invalidate_I), "r" (addr));
+ protected_cache_op(Hit_Invalidate_I, addr);
}
/*
@@ -104,32 +108,12 @@
*/
static inline void protected_writeback_dcache_line(unsigned long addr)
{
- __asm__ __volatile__(
- " .set push \n"
- " .set noreorder \n"
- " .set mips3 \n"
- "1: cache %0, (%1) \n"
- "2: .set pop \n"
- " .section __ex_table,\"a\" \n"
- " "STR(PTR)" 1b, 2b \n"
- " .previous"
- :
- : "i" (Hit_Writeback_Inv_D), "r" (addr));
+ protected_cache_op(Hit_Writeback_Inv_D, addr);
}
static inline void protected_writeback_scache_line(unsigned long addr)
{
- __asm__ __volatile__(
- " .set push \n"
- " .set noreorder \n"
- " .set mips3 \n"
- "1: cache %0, (%1) \n"
- "2: .set pop \n"
- " .section __ex_table,\"a\" \n"
- " "STR(PTR)" 1b, 2b \n"
- " .previous"
- :
- : "i" (Hit_Writeback_Inv_SD), "r" (addr));
+ protected_cache_op(Hit_Writeback_Inv_SD, addr);
}
/*
@@ -295,4 +279,28 @@
__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64)
__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128)
+/* build blast_xxx_range, protected_blast_xxx_range */
+#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot) \
+static inline void prot##blast_##pfx##cache##_range(unsigned long start, \
+ unsigned long end) \
+{ \
+ unsigned long lsize = cpu_##desc##_line_size(); \
+ unsigned long addr = start & ~(lsize - 1); \
+ unsigned long aend = (end - 1) & ~(lsize - 1); \
+ while (1) { \
+ prot##cache_op(hitop, addr); \
+ if (addr == aend) \
+ break; \
+ addr += lsize; \
+ } \
+}
+
+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_)
+__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_)
+__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_)
+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, )
+__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, )
+/* blast_inv_dcache_range */
+__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, )
+
#endif /* _ASM_R4KCACHE_H */
diff --git a/include/asm-mips/uaccess.h b/include/asm-mips/uaccess.h
index 91d813a..7a553e9 100644
--- a/include/asm-mips/uaccess.h
+++ b/include/asm-mips/uaccess.h
@@ -266,6 +266,8 @@
*/
#define __get_user_asm_ll32(val, addr) \
{ \
+ unsigned long long __gu_tmp; \
+ \
__asm__ __volatile__( \
"1: lw %1, (%3) \n" \
"2: lw %D1, 4(%3) \n" \
@@ -280,8 +282,9 @@
" " __UA_ADDR " 1b, 4b \n" \
" " __UA_ADDR " 2b, 4b \n" \
" .previous \n" \
- : "=r" (__gu_err), "=&r" (val) \
+ : "=r" (__gu_err), "=&r" (__gu_tmp) \
: "0" (0), "r" (addr), "i" (-EFAULT)); \
+ (val) = __gu_tmp; \
}
/*
diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h
index e7ff9b1..769305d 100644
--- a/include/asm-mips/unistd.h
+++ b/include/asm-mips/unistd.h
@@ -1184,10 +1184,8 @@
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-# ifndef __mips64
-# define __ARCH_WANT_STAT64
-# endif
# ifdef CONFIG_32BIT
+# define __ARCH_WANT_STAT64
# define __ARCH_WANT_SYS_TIME
# endif
# ifdef CONFIG_MIPS32_O32
diff --git a/include/asm-parisc/mman.h b/include/asm-parisc/mman.h
index 736b0ab..a381cf5 100644
--- a/include/asm-parisc/mman.h
+++ b/include/asm-parisc/mman.h
@@ -49,6 +49,8 @@
#define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */
#define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */
#define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-powerpc/mman.h b/include/asm-powerpc/mman.h
index a2e34c2..fcff25d 100644
--- a/include/asm-powerpc/mman.h
+++ b/include/asm-powerpc/mman.h
@@ -45,6 +45,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-s390/mman.h b/include/asm-s390/mman.h
index c8d5409..d41ca14 100644
--- a/include/asm-s390/mman.h
+++ b/include/asm-s390/mman.h
@@ -44,6 +44,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-sh/mman.h b/include/asm-sh/mman.h
index 693bd55..0e08d05 100644
--- a/include/asm-sh/mman.h
+++ b/include/asm-sh/mman.h
@@ -36,6 +36,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-sparc/mman.h b/include/asm-sparc/mman.h
index 98435ad..4a298b2 100644
--- a/include/asm-sparc/mman.h
+++ b/include/asm-sparc/mman.h
@@ -55,6 +55,8 @@
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_FREE 0x5 /* (Solaris) contents can be freed */
#define MADV_REMOVE 0x6 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-sparc64/mman.h b/include/asm-sparc64/mman.h
index cb4b615..d705ec9 100644
--- a/include/asm-sparc64/mman.h
+++ b/include/asm-sparc64/mman.h
@@ -55,6 +55,8 @@
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_FREE 0x5 /* (Solaris) contents can be freed */
#define MADV_REMOVE 0x6 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-v850/mman.h b/include/asm-v850/mman.h
index edc7996..7b851c3 100644
--- a/include/asm-v850/mman.h
+++ b/include/asm-v850/mman.h
@@ -33,6 +33,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-x86_64/mman.h b/include/asm-x86_64/mman.h
index d0e97b7..b699a38 100644
--- a/include/asm-x86_64/mman.h
+++ b/include/asm-x86_64/mman.h
@@ -37,6 +37,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/asm-xtensa/mman.h b/include/asm-xtensa/mman.h
index 082a750..e2d7afb 100644
--- a/include/asm-xtensa/mman.h
+++ b/include/asm-xtensa/mman.h
@@ -73,6 +73,8 @@
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
+#define MADV_DONTFORK 0x30 /* dont inherit across fork */
+#define MADV_DOFORK 0x31 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 0fe4aa8..41ee799 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -498,12 +498,6 @@
struct journal_head *t_checkpoint_list;
/*
- * Doubly-linked circular list of all buffers submitted for IO while
- * checkpointing. [j_list_lock]
- */
- struct journal_head *t_checkpoint_io_list;
-
- /*
* Doubly-linked circular list of temporary buffers currently undergoing
* IO in the log [j_list_lock]
*/
@@ -852,7 +846,7 @@
/* Checkpoint list management */
int __journal_clean_checkpoint_list(journal_t *journal);
-int __journal_remove_checkpoint(struct journal_head *);
+void __journal_remove_checkpoint(struct journal_head *);
void __journal_insert_checkpoint(struct journal_head *, transaction_t *);
/* Buffer IO */
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 920766c..ef21ed2 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -149,7 +149,7 @@
int nlmclnt_prepare_block(struct nlm_rqst *req, struct nlm_host *host, struct file_lock *fl);
void nlmclnt_finish_block(struct nlm_rqst *req);
long nlmclnt_block(struct nlm_rqst *req, long timeout);
-u32 nlmclnt_grant(struct nlm_lock *);
+u32 nlmclnt_grant(const struct sockaddr_in *addr, const struct nlm_lock *);
void nlmclnt_recovery(struct nlm_host *, u32);
int nlmclnt_reclaim(struct nlm_host *, struct file_lock *);
int nlmclnt_setgrantargs(struct nlm_rqst *, struct nlm_lock *);
@@ -204,7 +204,7 @@
* Compare two host addresses (needs modifying for ipv6)
*/
static __inline__ int
-nlm_cmp_addr(struct sockaddr_in *sin1, struct sockaddr_in *sin2)
+nlm_cmp_addr(const struct sockaddr_in *sin1, const struct sockaddr_in *sin2)
{
return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;
}
@@ -214,7 +214,7 @@
* When the second lock is of type F_UNLCK, this acts like a wildcard.
*/
static __inline__ int
-nlm_compare_locks(struct file_lock *fl1, struct file_lock *fl2)
+nlm_compare_locks(const struct file_lock *fl1, const struct file_lock *fl2)
{
return fl1->fl_pid == fl2->fl_pid
&& fl1->fl_start == fl2->fl_start
diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h
index fdc4a95..43c09d7 100644
--- a/include/linux/netfilter_ipv4.h
+++ b/include/linux/netfilter_ipv4.h
@@ -79,7 +79,7 @@
#ifdef __KERNEL__
extern int ip_route_me_harder(struct sk_buff **pskb);
-
+extern int ip_xfrm_me_harder(struct sk_buff **pskb);
#endif /*__KERNEL__*/
#endif /*__LINUX_IP_NETFILTER_H*/
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 9d5cd10..0d36750 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -84,6 +84,7 @@
extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len);
extern int ptrace_attach(struct task_struct *tsk);
extern int ptrace_detach(struct task_struct *, unsigned int);
+extern void __ptrace_detach(struct task_struct *, unsigned int);
extern void ptrace_disable(struct task_struct *);
extern int ptrace_check_attach(struct task_struct *task, int kill);
extern int ptrace_request(struct task_struct *child, long request, long addr, long data);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9c1da02..b6f51e3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -697,12 +697,9 @@
int lock_depth; /* BKL lock depth */
-#if defined(CONFIG_SMP)
- int last_waker_cpu; /* CPU that last woke this task up */
-#if defined(__ARCH_WANT_UNLOCKED_CTXSW)
+#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW)
int oncpu;
#endif
-#endif
int prio, static_prio;
struct list_head run_list;
prio_array_t *array;
diff --git a/kernel/fork.c b/kernel/fork.c
index 8e88b37..fbea12d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1123,8 +1123,8 @@
p->real_parent = current;
p->parent = p->real_parent;
+ spin_lock(¤t->sighand->siglock);
if (clone_flags & CLONE_THREAD) {
- spin_lock(¤t->sighand->siglock);
/*
* Important: if an exit-all has been started then
* do not create this new thread - the whole thread
@@ -1162,8 +1162,6 @@
*/
p->it_prof_expires = jiffies_to_cputime(1);
}
-
- spin_unlock(¤t->sighand->siglock);
}
/*
@@ -1175,8 +1173,6 @@
if (unlikely(p->ptrace & PT_PTRACED))
__ptrace_link(p, current->parent);
- attach_pid(p, PIDTYPE_PID, p->pid);
- attach_pid(p, PIDTYPE_TGID, p->tgid);
if (thread_group_leader(p)) {
p->signal->tty = current->signal->tty;
p->signal->pgrp = process_group(current);
@@ -1186,9 +1182,12 @@
if (p->pid)
__get_cpu_var(process_counts)++;
}
+ attach_pid(p, PIDTYPE_TGID, p->tgid);
+ attach_pid(p, PIDTYPE_PID, p->pid);
nr_threads++;
total_forks++;
+ spin_unlock(¤t->sighand->siglock);
write_unlock_irq(&tasklist_lock);
proc_fork_connector(p);
return p;
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 2b6e175..5ae51f1 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -418,8 +418,19 @@
/* Switch the timer base, if necessary: */
new_base = switch_hrtimer_base(timer, base);
- if (mode == HRTIMER_REL)
+ if (mode == HRTIMER_REL) {
tim = ktime_add(tim, new_base->get_time());
+ /*
+ * CONFIG_TIME_LOW_RES is a temporary way for architectures
+ * to signal that they simply return xtime in
+ * do_gettimeoffset(). In this case we want to round up by
+ * resolution when starting a relative timer, to avoid short
+ * timeouts. This will go away with the GTOD framework.
+ */
+#ifdef CONFIG_TIME_LOW_RES
+ tim = ktime_add(tim, base->resolution);
+#endif
+ }
timer->expires = tim;
enqueue_hrtimer(timer, new_base);
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 5f33cdb..d95a72c 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -72,8 +72,8 @@
*/
void __ptrace_unlink(task_t *child)
{
- if (!child->ptrace)
- BUG();
+ BUG_ON(!child->ptrace);
+
child->ptrace = 0;
if (!list_empty(&child->ptrace_list)) {
list_del_init(&child->ptrace_list);
@@ -184,22 +184,27 @@
return retval;
}
-int ptrace_detach(struct task_struct *child, unsigned int data)
+void __ptrace_detach(struct task_struct *child, unsigned int data)
{
- if (!valid_signal(data))
- return -EIO;
-
- /* Architecture-specific hardware disable .. */
- ptrace_disable(child);
-
- /* .. re-parent .. */
child->exit_code = data;
-
- write_lock_irq(&tasklist_lock);
+ /* .. re-parent .. */
__ptrace_unlink(child);
/* .. and wake it up. */
if (child->exit_state != EXIT_ZOMBIE)
wake_up_process(child);
+}
+
+int ptrace_detach(struct task_struct *child, unsigned int data)
+{
+ if (!valid_signal(data))
+ return -EIO;
+
+ /* Architecture-specific hardware disable .. */
+ ptrace_disable(child);
+
+ write_lock_irq(&tasklist_lock);
+ if (child->ptrace)
+ __ptrace_detach(child, data);
write_unlock_irq(&tasklist_lock);
return 0;
@@ -242,8 +247,7 @@
if (write) {
copy_to_user_page(vma, page, addr,
maddr + offset, buf, bytes);
- if (!PageCompound(page))
- set_page_dirty_lock(page);
+ set_page_dirty_lock(page);
} else {
copy_from_user_page(vma, page, addr,
buf, maddr + offset, bytes);
diff --git a/kernel/sched.c b/kernel/sched.c
index 87d93be..66d9572 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1204,9 +1204,6 @@
}
}
- if (p->last_waker_cpu != this_cpu)
- goto out_set_cpu;
-
if (unlikely(!cpu_isset(this_cpu, p->cpus_allowed)))
goto out_set_cpu;
@@ -1277,8 +1274,6 @@
cpu = task_cpu(p);
}
- p->last_waker_cpu = this_cpu;
-
out_activate:
#endif /* CONFIG_SMP */
if (old_state == TASK_UNINTERRUPTIBLE) {
@@ -1360,12 +1355,9 @@
#ifdef CONFIG_SCHEDSTATS
memset(&p->sched_info, 0, sizeof(p->sched_info));
#endif
-#if defined(CONFIG_SMP)
- p->last_waker_cpu = cpu;
-#if defined(__ARCH_WANT_UNLOCKED_CTXSW)
+#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW)
p->oncpu = 0;
#endif
-#endif
#ifdef CONFIG_PREEMPT
/* Want to start with kernel preemption disabled. */
task_thread_info(p)->preempt_count = 1;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 67f2951..5087077 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -85,7 +85,7 @@
BUG_ON(page_count(page));
INIT_LIST_HEAD(&page->lru);
- page[1].mapping = NULL;
+ page[1].lru.next = NULL; /* reset dtor */
spin_lock(&hugetlb_lock);
enqueue_huge_page(page);
@@ -105,7 +105,7 @@
}
spin_unlock(&hugetlb_lock);
set_page_count(page, 1);
- page[1].mapping = (void *)free_huge_page;
+ page[1].lru.next = (void *)free_huge_page; /* set dtor */
for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); ++i)
clear_user_highpage(&page[i], addr);
return page;
diff --git a/mm/madvise.c b/mm/madvise.c
index ae0ae3e..af3d573 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -22,16 +22,23 @@
struct mm_struct * mm = vma->vm_mm;
int error = 0;
pgoff_t pgoff;
- int new_flags = vma->vm_flags & ~VM_READHINTMASK;
+ int new_flags = vma->vm_flags;
switch (behavior) {
+ case MADV_NORMAL:
+ new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
+ break;
case MADV_SEQUENTIAL:
- new_flags |= VM_SEQ_READ;
+ new_flags = (new_flags & ~VM_RAND_READ) | VM_SEQ_READ;
break;
case MADV_RANDOM:
- new_flags |= VM_RAND_READ;
+ new_flags = (new_flags & ~VM_SEQ_READ) | VM_RAND_READ;
break;
- default:
+ case MADV_DONTFORK:
+ new_flags |= VM_DONTCOPY;
+ break;
+ case MADV_DOFORK:
+ new_flags &= ~VM_DONTCOPY;
break;
}
@@ -177,6 +184,12 @@
long error;
switch (behavior) {
+ case MADV_DOFORK:
+ if (vma->vm_flags & VM_IO) {
+ error = -EINVAL;
+ break;
+ }
+ case MADV_DONTFORK:
case MADV_NORMAL:
case MADV_SEQUENTIAL:
case MADV_RANDOM:
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dde04ff..62c1225 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -56,6 +56,7 @@
int percpu_pagelist_fraction;
static void fastcall free_hot_cold_page(struct page *page, int cold);
+static void __free_pages_ok(struct page *page, unsigned int order);
/*
* results with 256, 32 in the lowmem_reserve sysctl:
@@ -169,20 +170,23 @@
* All pages have PG_compound set. All pages have their ->private pointing at
* the head page (even the head page has this).
*
- * The first tail page's ->mapping, if non-zero, holds the address of the
- * compound page's put_page() function.
- *
- * The order of the allocation is stored in the first tail page's ->index
- * This is only for debug at present. This usage means that zero-order pages
- * may not be compound.
+ * The first tail page's ->lru.next holds the address of the compound page's
+ * put_page() function. Its ->lru.prev holds the order of allocation.
+ * This usage means that zero-order pages may not be compound.
*/
+
+static void free_compound_page(struct page *page)
+{
+ __free_pages_ok(page, (unsigned long)page[1].lru.prev);
+}
+
static void prep_compound_page(struct page *page, unsigned long order)
{
int i;
int nr_pages = 1 << order;
- page[1].mapping = NULL;
- page[1].index = order;
+ page[1].lru.next = (void *)free_compound_page; /* set dtor */
+ page[1].lru.prev = (void *)order;
for (i = 0; i < nr_pages; i++) {
struct page *p = page + i;
@@ -196,7 +200,7 @@
int i;
int nr_pages = 1 << order;
- if (unlikely(page[1].index != order))
+ if (unlikely((unsigned long)page[1].lru.prev != order))
bad_page(page);
for (i = 0; i < nr_pages; i++) {
diff --git a/mm/swap.c b/mm/swap.c
index 7624742..cce3dda 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -40,7 +40,7 @@
if (put_page_testzero(page)) {
void (*dtor)(struct page *page);
- dtor = (void (*)(struct page *))page[1].mapping;
+ dtor = (void (*)(struct page *))page[1].lru.next;
(*dtor)(page);
}
}
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index cc047f7..35cf3a0 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -67,7 +67,7 @@
{
struct net_bridge_port *p;
- spin_lock(&br->lock);
+ spin_lock_bh(&br->lock);
list_for_each_entry(p, &br->port_list, list) {
if (p->state != BR_STATE_DISABLED)
br_stp_disable_port(p);
@@ -76,7 +76,7 @@
br->topology_change = 0;
br->topology_change_detected = 0;
- spin_unlock(&br->lock);
+ spin_unlock_bh(&br->lock);
del_timer_sync(&br->hello_timer);
del_timer_sync(&br->topology_change_timer);
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 52a3d7c..ed42cdc 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -78,6 +78,47 @@
}
EXPORT_SYMBOL(ip_route_me_harder);
+#ifdef CONFIG_XFRM
+int ip_xfrm_me_harder(struct sk_buff **pskb)
+{
+ struct flowi fl;
+ unsigned int hh_len;
+ struct dst_entry *dst;
+
+ if (IPCB(*pskb)->flags & IPSKB_XFRM_TRANSFORMED)
+ return 0;
+ if (xfrm_decode_session(*pskb, &fl, AF_INET) < 0)
+ return -1;
+
+ dst = (*pskb)->dst;
+ if (dst->xfrm)
+ dst = ((struct xfrm_dst *)dst)->route;
+ dst_hold(dst);
+
+ if (xfrm_lookup(&dst, &fl, (*pskb)->sk, 0) < 0)
+ return -1;
+
+ dst_release((*pskb)->dst);
+ (*pskb)->dst = dst;
+
+ /* Change in oif may mean change in hh_len. */
+ hh_len = (*pskb)->dst->dev->hard_header_len;
+ if (skb_headroom(*pskb) < hh_len) {
+ struct sk_buff *nskb;
+
+ nskb = skb_realloc_headroom(*pskb, hh_len);
+ if (!nskb)
+ return -1;
+ if ((*pskb)->sk)
+ skb_set_owner_w(nskb, (*pskb)->sk);
+ kfree_skb(*pskb);
+ *pskb = nskb;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(ip_xfrm_me_harder);
+#endif
+
void (*ip_nat_decode_session)(struct sk_buff *, struct flowi *);
EXPORT_SYMBOL(ip_nat_decode_session);
diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c
index 92c5499..7c3f7d3 100644
--- a/net/ipv4/netfilter/ip_nat_standalone.c
+++ b/net/ipv4/netfilter/ip_nat_standalone.c
@@ -235,19 +235,19 @@
return NF_ACCEPT;
ret = ip_nat_fn(hooknum, pskb, in, out, okfn);
+#ifdef CONFIG_XFRM
if (ret != NF_DROP && ret != NF_STOLEN
&& (ct = ip_conntrack_get(*pskb, &ctinfo)) != NULL) {
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
if (ct->tuplehash[dir].tuple.src.ip !=
ct->tuplehash[!dir].tuple.dst.ip
-#ifdef CONFIG_XFRM
|| ct->tuplehash[dir].tuple.src.u.all !=
ct->tuplehash[!dir].tuple.dst.u.all
-#endif
)
- return ip_route_me_harder(pskb) == 0 ? ret : NF_DROP;
+ return ip_xfrm_me_harder(pskb) == 0 ? ret : NF_DROP;
}
+#endif
return ret;
}
