1  /* Selective file content synch'ing.
       2     Copyright (C) 2006-2023 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     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <fcntl.h>
      20  #include <sysdep-cancel.h>
      21  
      22  int
      23  sync_file_range (int fd, __off64_t offset, __off64_t len, unsigned int flags)
      24  {
      25  #if defined (__NR_sync_file_range2)
      26    return SYSCALL_CANCEL (sync_file_range2, fd, flags, SYSCALL_LL64 (offset),
      27  			 SYSCALL_LL64 (len));
      28  #elif defined (__NR_sync_file_range)
      29    return SYSCALL_CANCEL (sync_file_range, fd,
      30  			 __ALIGNMENT_ARG SYSCALL_LL64 (offset),
      31  			 SYSCALL_LL64 (len), flags);
      32  #endif
      33  }