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authorUlrich Drepper <drepper@redhat.com>2007-07-28 18:13:45 +0000
committerUlrich Drepper <drepper@redhat.com>2007-07-28 18:13:45 +0000
commita95a608f1b07a5c6e562294c570e89645d9b6176 (patch)
treeb093b4ffc94db6d7bfa2fc62afe47cae946e6e2c /sysdeps/unix/sysv/linux/posix_fallocate.c
parent429849d03dc4d390653f2d0a57eeed2cc359dbec (diff)
downloadglibc-a95a608f1b07a5c6e562294c570e89645d9b6176.tar.gz
* sysdeps/posix/posix_fallocate64.c: Undefine
__posix_fallocate64_l64 before alias handling. * sysdeps/unix/sysv/linux/posix_fallocate.c: New file. * sysdeps/unix/sysv/linux/posix_fallocate64.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate64.c: New file. * io/tst-posix_fallocate.c: Include <fcntl.h>. 2007-07-23 Jakub Jelinek <jakub@redhat.com> * locale/programs/ld-collate.c (atwc): New variable. (add_to_tablewc): New toplevel function, moved from collate_output. (collate_output): Remove add_to_tablewc nested function. * iconv/iconvconfig.c (hash_table, hash_size): New toplevel vars. (name_insert): New function. (write_output): Remove hash_table and hash_size vars and name_insert nested function.
Diffstat (limited to 'sysdeps/unix/sysv/linux/posix_fallocate.c')
-rw-r--r--sysdeps/unix/sysv/linux/posix_fallocate.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/posix_fallocate.c b/sysdeps/unix/sysv/linux/posix_fallocate.c
new file mode 100644
index 0000000000..9cfade60ca
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/posix_fallocate.c
@@ -0,0 +1,60 @@
+/* Copyright (C) 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <fcntl.h>
+#include <kernel-features.h>
+#include <sysdep.h>
+
+#define posix_fallocate static internal_fallocate
+#include <sysdeps/posix/posix_fallocate.c>
+#undef posix_fallocate
+
+#if !defined __ASSUME_FALLOCATE && defined __NR_fallocate
+int __have_fallocate attribute_hidden;
+#endif
+
+
+/* Reserve storage for the data of the file associated with FD. */
+int
+posix_fallocate (int fd, __off_t offset, __off_t len)
+{
+#ifdef __NR_fallocate
+# ifndef __ASSUME_FALLOCATE
+ if (__builtin_expect (__have_fallocate >= 0, 1))
+# endif
+ {
+ INTERNAL_SYSCALL_DECL (err);
+ int res = INTERNAL_SYSCALL (fallocate, err, 4, fd, 0,
+ __LONG_LONG_PAIR (offset >> 31, offset),
+ __LONG_LONG_PAIR (len >> 31, len));
+
+ if (! INTERNAL_SYSCALL_ERROR_P (res, err))
+ return 0;
+
+# ifndef __ASSUME_FALLOCATE
+ if (__builtin_expect (INTERNAL_SYSCALL_ERRNO (res, err) == ENOSYS, 0))
+ __have_fallocate = -1;
+ else
+# endif
+ if (INTERNAL_SYSCALL_ERRNO (res, err) != EOPNOTSUPP)
+ return INTERNAL_SYSCALL_ERRNO (res, err);
+ }
+#endif
+
+ return internal_fallocate (fd, offset, len);
+}