1 #ifndef _NFS_MOUNT_CONSTANTS_H
2 #define _NFS_MOUNT_CONSTANTS_H
5 #define MS_DIRSYNC 128 /* Directory modifications are synchronous */
9 #define MS_ACTION_MASK 0x380
10 /* Remount, but new filesystem may be different from old. Atomic
11 (i.e. there is no interval when nothing is mounted at the mountpoint).
12 If new fs differs from the old one and old is busy - -EBUSY. */
13 #define MS_REPLACE 0x080 /* 128 */
14 /* After, Before: as soon as we get unions these will add a new member
15 in the end or beginning of the chain. Fail if there is a stack
17 #define MS_AFTER 0x100 /* 256 */
18 #define MS_BEFORE 0x180
19 /* Over: if nothing mounted on a mountpoint - same as if none of these
20 flags had been set; if we have a union with more than one element - fail;
21 if we have a stack or plain mount - mount atop of it, forming a stack. */
22 #define MS_OVER 0x200 /* 512 */
25 #define MS_NOATIME 0x400 /* 1024: Do not update access times. */
28 #define MS_NODIRATIME 0x800 /* 2048: Don't update directory access times */
31 #define MS_BIND 0x1000 /* 4096: Mount existing tree also elsewhere */
34 #define MS_MOVE 0x2000 /* 8192: Atomically move tree */
37 #define MS_REC 0x4000 /* 16384: Recursive loopback */
40 #define MS_VERBOSE 0x8000 /* 32768 */
43 * Magic mount flag number. Had to be or-ed to the flag values.
46 #define MS_MGC_VAL 0xC0ED0000 /* magic flag number to indicate "new" flags */
49 #define MS_MGC_MSK 0xffff0000 /* magic flag number mask */
52 #endif /* _NFS_MOUNT_CONSTANTS_H */