MIPS: Implement HAVE_CONTEXT_TRACKING.
This enables support for CONFIG_NO_HZ_FULL.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index 203d885..3eaa02a 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -72,6 +72,7 @@
* A store crossing a page boundary might be executed only partially.
* Undo the partial store in this case.
*/
+#include <linux/context_tracking.h>
#include <linux/mm.h>
#include <linux/signal.h>
#include <linux/smp.h>
@@ -1550,9 +1551,11 @@
}
asmlinkage void do_ade(struct pt_regs *regs)
{
+ enum ctx_state prev_state;
unsigned int __user *pc;
mm_segment_t seg;
+ prev_state = exception_enter();
perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,
1, regs, regs->cp0_badvaddr);
/*
@@ -1628,6 +1631,7 @@
/*
* XXX On return from the signal handler we should advance the epc
*/
+ exception_exit(prev_state);
}
#ifdef CONFIG_DEBUG_FS
