include/linux/falloc.h

   1 #ifndef _FALLOC_H_
   2 #define _FALLOC_H_
   3
   4 #define FALLOC_FL_KEEP_SIZE     0x01 /* default is extend size */
   5 #define FALLOC_FL_PUNCH_HOLE    0x02 /* de-allocates range */
   6
   7 #ifdef __KERNEL__
   8
   9 /*
  10  * Space reservation ioctls and argument structure
  11  * are designed to be compatible with the legacy XFS ioctls.
  12  */
  13 struct space_resv {
  14         __s16           l_type;
  15         __s16           l_whence;
  16         __s64           l_start;
  17         __s64           l_len;          /* len == 0 means until end of file */
  18         __s32           l_sysid;
  19         __u32           l_pid;
  20         __s32           l_pad[4];       /* reserved area */
  21 };
  22
  23 #define FS_IOC_RESVSP           _IOW('X', 40, struct space_resv)
  24 #define FS_IOC_RESVSP64         _IOW('X', 42, struct space_resv)
  25
  26 #endif /* __KERNEL__ */
  27
  28 #endif /* _FALLOC_H_ */