| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Common syscall restarting data |
| */ |
| #ifndef __LINUX_RESTART_BLOCK_H |
| #define __LINUX_RESTART_BLOCK_H |
| |
| #include <linux/compiler.h> |
| #include <linux/types.h> |
| #include <linux/time64.h> |
| |
| struct timespec; |
| struct old_timespec32; |
| struct pollfd; |
| |
| enum timespec_type { |
| TT_NONE = 0, |
| TT_NATIVE = 1, |
| TT_COMPAT = 2, |
| }; |
| |
| /* |
| * System call restart block. |
| */ |
| struct restart_block { |
| unsigned long arch_data; |
| long (*fn)(struct restart_block *); |
| union { |
| /* For futex_wait and futex_wait_requeue_pi */ |
| struct { |
| u32 __user *uaddr; |
| u32 val; |
| u32 flags; |
| u32 bitset; |
| u64 time; |
| u32 __user *uaddr2; |
| } futex; |
| /* For nanosleep */ |
| struct { |
| clockid_t clockid; |
| enum timespec_type type; |
| union { |
| struct __kernel_timespec __user *rmtp; |
| struct old_timespec32 __user *compat_rmtp; |
| }; |
| u64 expires; |
| } nanosleep; |
| /* For poll */ |
| struct { |
| struct pollfd __user *ufds; |
| int nfds; |
| int has_timeout; |
| unsigned long tv_sec; |
| unsigned long tv_nsec; |
| } poll; |
| }; |
| }; |
| |
| extern long do_no_restart_syscall(struct restart_block *parm); |
| |
| #endif /* __LINUX_RESTART_BLOCK_H */ |