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| author | Christoph Hellwig <hch@lst.de> | 2006-01-09 20:52:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-10 08:01:34 -0800 |
| commit | fc33a7bb9c6dd8f6e4a014976200f8fdabb3a45c (patch) | |
| tree | 26f4d676de476075545e58057aa5d8c57618741d /include/linux/mount.h | |
| parent | 0d456fa4261f43433287a10fe3ec04a9818fac64 (diff) | |
| download | op-kernel-dev-fc33a7bb9c6dd8f6e4a014976200f8fdabb3a45c.zip op-kernel-dev-fc33a7bb9c6dd8f6e4a014976200f8fdabb3a45c.tar.gz | |
[PATCH] per-mountpoint noatime/nodiratime
Turn noatime and nodiratime into per-mount instead of per-sb flags.
After all the preparations this is a rather trivial patch. The mount code
needs to treat the two options as per-mount instead of per-superblock, and
touch_atime needs to be changed to check the new MNT_ flags in addition to
the MS_ flags that are kept for filesystems that are always
noatime/nodiratime but not user settable anymore. Besides that core code
only nfs needed an update because it's leaving atime updates to the server
and thus sets the S_NOATIME flag on every inode, but needs to know whether
it's a real noatime mount for an getattr optimization.
While we're at it I've killed the IS_NOATIME/IS_NODIRATIME macros that were
only used by touch_atime.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/mount.h')
| -rw-r--r-- | include/linux/mount.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/mount.h b/include/linux/mount.h index b98a709..b7472ae 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -20,10 +20,12 @@ #define MNT_NOSUID 0x01 #define MNT_NODEV 0x02 #define MNT_NOEXEC 0x04 -#define MNT_SHARED 0x10 /* if the vfsmount is a shared mount */ -#define MNT_UNBINDABLE 0x20 /* if the vfsmount is a unbindable mount */ +#define MNT_NOATIME 0x08 +#define MNT_NODIRATIME 0x10 -#define MNT_PNODE_MASK (MNT_SHARED | MNT_UNBINDABLE) +#define MNT_SHARED 0x1000 /* if the vfsmount is a shared mount */ +#define MNT_UNBINDABLE 0x2000 /* if the vfsmount is a unbindable mount */ +#define MNT_PNODE_MASK 0x3000 /* propogation flag mask */ struct vfsmount { struct list_head mnt_hash; |
