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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
53d74d05 MR |
2 | /* |
3 | * Common syscall restarting data | |
4 | */ | |
5 | #ifndef __LINUX_RESTART_BLOCK_H | |
6 | #define __LINUX_RESTART_BLOCK_H | |
7 | ||
8 | #include <linux/compiler.h> | |
9 | #include <linux/types.h> | |
10 | ||
11 | struct timespec; | |
12 | struct compat_timespec; | |
13 | struct pollfd; | |
14 | ||
edbeda46 AV |
15 | enum timespec_type { |
16 | TT_NONE = 0, | |
17 | TT_NATIVE = 1, | |
18 | #ifdef CONFIG_COMPAT | |
19 | TT_COMPAT = 2, | |
20 | #endif | |
21 | }; | |
22 | ||
53d74d05 MR |
23 | /* |
24 | * System call restart block. | |
25 | */ | |
26 | struct restart_block { | |
27 | long (*fn)(struct restart_block *); | |
28 | union { | |
29 | /* For futex_wait and futex_wait_requeue_pi */ | |
30 | struct { | |
31 | u32 __user *uaddr; | |
32 | u32 val; | |
33 | u32 flags; | |
34 | u32 bitset; | |
35 | u64 time; | |
36 | u32 __user *uaddr2; | |
37 | } futex; | |
38 | /* For nanosleep */ | |
39 | struct { | |
40 | clockid_t clockid; | |
edbeda46 AV |
41 | enum timespec_type type; |
42 | union { | |
43 | struct timespec __user *rmtp; | |
53d74d05 | 44 | #ifdef CONFIG_COMPAT |
edbeda46 | 45 | struct compat_timespec __user *compat_rmtp; |
53d74d05 | 46 | #endif |
edbeda46 | 47 | }; |
53d74d05 MR |
48 | u64 expires; |
49 | } nanosleep; | |
50 | /* For poll */ | |
51 | struct { | |
52 | struct pollfd __user *ufds; | |
53 | int nfds; | |
54 | int has_timeout; | |
55 | unsigned long tv_sec; | |
56 | unsigned long tv_nsec; | |
57 | } poll; | |
58 | }; | |
59 | }; | |
60 | ||
61 | extern long do_no_restart_syscall(struct restart_block *parm); | |
62 | ||
63 | #endif /* __LINUX_RESTART_BLOCK_H */ |