syscalls/fallocate.c

   1 /*
   2  * SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
   3  *
   4  * fallocate() returns zero on success, and -1 on failure.
   5  */
   6 #include "sanitise.h"
   7
   8 #define FALLOC_FL_KEEP_SIZE     0x01
   9 #define FALLOC_FL_PUNCH_HOLE    0x02
  10 #define FALLOC_FL_NO_HIDE_STALE 0x04
  11
  12 struct syscallentry syscall_fallocate = {
  13         .name = "fallocate",
  14         .num_args = 4,
  15         .arg1name = "fd",
  16         .arg1type = ARG_FD,
  17         .arg2name = "mode",
  18         .arg2type = ARG_LIST,
  19         .arg2list = {
  20                 .num = 3,
  21                 .values = { FALLOC_FL_KEEP_SIZE, FALLOC_FL_PUNCH_HOLE,
  22                         FALLOC_FL_NO_HIDE_STALE,
  23                 },
  24         },
  25         .arg3name = "offset",
  26         .arg3type = ARG_LEN,
  27         .arg4name = "len",
  28         .arg4type = ARG_LEN,
  29         .rettype = RET_ZERO_SUCCESS,
  30         .flags = NEED_ALARM,
  31         .group = GROUP_VFS,
  32 };