sync_file_range.c raw

   1  #define _GNU_SOURCE
   2  #include <fcntl.h>
   3  #include <errno.h>
   4  #include "syscall.h"
   5  
   6  int sync_file_range(int fd, off_t pos, off_t len, unsigned flags)
   7  {
   8  #if defined(SYS_sync_file_range2)
   9  	return syscall(SYS_sync_file_range2, fd, flags,
  10  		__SYSCALL_LL_E(pos), __SYSCALL_LL_E(len));
  11  #elif defined(SYS_sync_file_range)
  12  	return syscall(SYS_sync_file_range, fd,
  13  		__SYSCALL_LL_O(pos), __SYSCALL_LL_E(len), flags);
  14  #else
  15  	return __syscall_ret(-ENOSYS);
  16  #endif
  17  }
  18