sysdeps/unix/sysv/linux/powerpc/powerpc64/sync_file_range.c

   1 /* Selective file content synch'ing.
   2    Copyright (C) 2006-2014 Free Software Foundation, Inc.
   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
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <fcntl.h>
  21 #include <sys/types.h>
  22
  23 #include <sysdep-cancel.h>
  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 {
  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;
  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)
  51 #endif