glibc/sysdeps/unix/sysv/linux/readahead.c

31 lines
1.1 KiB
C

/* Provide kernel hint to read ahead.
Copyright (C) 2002-2020 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, see
<https://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <errno.h>
#include <sysdep.h>
ssize_t
__readahead (int fd, off64_t offset, size_t count)
{
return INLINE_SYSCALL_CALL (readahead, fd,
__ALIGNMENT_ARG SYSCALL_LL64 (offset),
count);
}
weak_alias (__readahead, readahead)