Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/*
2 * Common syscall restarting data
3 */
4#ifndef __LINUX_RESTART_BLOCK_H
5#define __LINUX_RESTART_BLOCK_H
6
7#include <linux/compiler.h>
8#include <linux/types.h>
9
10struct timespec;
11struct compat_timespec;
12struct pollfd;
13
14enum timespec_type {
15 TT_NONE = 0,
16 TT_NATIVE = 1,
17#ifdef CONFIG_COMPAT
18 TT_COMPAT = 2,
19#endif
20};
21
22/*
23 * System call restart block.
24 */
25struct restart_block {
26 long (*fn)(struct restart_block *);
27 union {
28 /* For futex_wait and futex_wait_requeue_pi */
29 struct {
30 u32 __user *uaddr;
31 u32 val;
32 u32 flags;
33 u32 bitset;
34 u64 time;
35 u32 __user *uaddr2;
36 } futex;
37 /* For nanosleep */
38 struct {
39 clockid_t clockid;
40 enum timespec_type type;
41 union {
42 struct timespec __user *rmtp;
43#ifdef CONFIG_COMPAT
44 struct compat_timespec __user *compat_rmtp;
45#endif
46 };
47 u64 expires;
48 } nanosleep;
49 /* For poll */
50 struct {
51 struct pollfd __user *ufds;
52 int nfds;
53 int has_timeout;
54 unsigned long tv_sec;
55 unsigned long tv_nsec;
56 } poll;
57 };
58};
59
60extern long do_no_restart_syscall(struct restart_block *parm);
61
62#endif /* __LINUX_RESTART_BLOCK_H */