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568035b7 | 1 | /* Copyright (C) 2007-2013 Free Software Foundation, Inc. |
749f5cc9 UD |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
749f5cc9 | 17 | |
f9a7bd53 | 18 | #include <errno.h> |
749f5cc9 | 19 | #include <fcntl.h> |
748876bf | 20 | #include <sysdep-cancel.h> |
749f5cc9 UD |
21 | |
22 | ||
23 | extern int __call_fallocate (int fd, int mode, __off64_t offset, __off64_t len) | |
24 | attribute_hidden; | |
25 | ||
26 | ||
27 | /* Reserve storage for the data of the file associated with FD. */ | |
28 | int | |
1f3615a1 | 29 | fallocate64 (int fd, int mode, __off64_t offset, __off64_t len) |
749f5cc9 | 30 | { |
f9a7bd53 | 31 | #ifdef __NR_fallocate |
748876bf UD |
32 | int err; |
33 | if (SINGLE_THREAD_P) | |
34 | err = __call_fallocate (fd, mode, offset, len); | |
35 | else | |
36 | { | |
37 | int oldtype = LIBC_CANCEL_ASYNC (); | |
38 | ||
39 | err = __call_fallocate (fd, mode, offset, len); | |
40 | ||
41 | LIBC_CANCEL_RESET (oldtype); | |
42 | } | |
de240a05 AS |
43 | if (__builtin_expect (err, 0)) |
44 | { | |
45 | __set_errno (err); | |
46 | err = -1; | |
47 | } | |
48 | return err; | |
f9a7bd53 MF |
49 | #else |
50 | __set_errno (ENOSYS); | |
51 | return -1; | |
52 | #endif | |
749f5cc9 | 53 | } |