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8ad81b31 | 1 | /* Selective file content synch'ing. |
b168057a | 2 | Copyright (C) 2006-2015 Free Software Foundation, Inc. |
8ad81b31 JJ |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
8ad81b31 JJ |
18 | |
19 | #include <errno.h> | |
20 | #include <fcntl.h> | |
21 | #include <sys/types.h> | |
22 | ||
f12a32e6 | 23 | #include <sysdep-cancel.h> |
8ad81b31 JJ |
24 | #include <sys/syscall.h> |
25 | ||
26 | ||
27 | #if defined __NR_sync_file_range2 | |
28 | int | |
29 | sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags) | |
30 | { | |
f12a32e6 AS |
31 | if (SINGLE_THREAD_P) |
32 | return INLINE_SYSCALL (sync_file_range2, 4, fd, flags, from, to); | |
33 | ||
34 | int result; | |
35 | int oldtype = LIBC_CANCEL_ASYNC (); | |
36 | ||
37 | result = INLINE_SYSCALL (sync_file_range2, 4, fd, flags, from, to); | |
38 | ||
39 | LIBC_CANCEL_RESET (oldtype); | |
40 | ||
41 | return result; | |
8ad81b31 JJ |
42 | } |
43 | #else | |
44 | int | |
45 | sync_file_range (int fd, __off64_t from, __off64_t to, unsigned int flags) | |
46 | { | |
47 | __set_errno (ENOSYS); | |
48 | return -1; | |
49 | } | |
50 | stub_warning (sync_file_range) | |
8ad81b31 | 51 | #endif |