mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 10:56:11 +07:00
53d74d056a
Since commit f56141e3e2 ("all arches, signal: move restart_block
to struct task_struct"), thread_info and restart_block have been
logically distinct, yet struct restart_block is still defined in
<linux/thread_info.h>.
At least one architecture (erroneously) uses restart_block as part of
its thread_info, and thus the definition of restart_block must come
before the include of <asm/thread_info>. Subsequent patches in this
series need to shuffle the order of includes and definitions in
<linux/thread_info.h>, and will make this ordering fragile.
This patch moves the definition of restart_block out to its own header.
This serves as generic cleanup, logically separating thread_info and
restart_block, and also makes it easier to avoid fragility.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
52 lines
949 B
C
52 lines
949 B
C
/*
|
|
* Common syscall restarting data
|
|
*/
|
|
#ifndef __LINUX_RESTART_BLOCK_H
|
|
#define __LINUX_RESTART_BLOCK_H
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/types.h>
|
|
|
|
struct timespec;
|
|
struct compat_timespec;
|
|
struct pollfd;
|
|
|
|
/*
|
|
* System call restart block.
|
|
*/
|
|
struct restart_block {
|
|
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;
|
|
struct timespec __user *rmtp;
|
|
#ifdef CONFIG_COMPAT
|
|
struct compat_timespec __user *compat_rmtp;
|
|
#endif
|
|
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 */
|