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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 /fs/nfs | |
| parent | 0d456fa4261f43433287a10fe3ec04a9818fac64 (diff) | |
| download | kernel_samsung_smdk4412-fc33a7bb9c6dd8f6e4a014976200f8fdabb3a45c.zip kernel_samsung_smdk4412-fc33a7bb9c6dd8f6e4a014976200f8fdabb3a45c.tar.gz kernel_samsung_smdk4412-fc33a7bb9c6dd8f6e4a014976200f8fdabb3a45c.tar.bz2 | |
[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 'fs/nfs')
| -rw-r--r-- | fs/nfs/inode.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 3e4ba9c..a77ee95 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -950,11 +950,20 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) /* Flush out writes to the server in order to update c/mtime */ nfs_sync_inode(inode, 0, 0, FLUSH_WAIT|FLUSH_NOCOMMIT); - if (__IS_FLG(inode, MS_NOATIME)) - need_atime = 0; - else if (__IS_FLG(inode, MS_NODIRATIME) && S_ISDIR(inode->i_mode)) + + /* + * We may force a getattr if the user cares about atime. + * + * Note that we only have to check the vfsmount flags here: + * - NFS always sets S_NOATIME by so checking it would give a + * bogus result + * - NFS never sets MS_NOATIME or MS_NODIRATIME so there is + * no point in checking those. + */ + if ((mnt->mnt_flags & MNT_NOATIME) || + ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))) need_atime = 0; - /* We may force a getattr if the user cares about atime */ + if (need_atime) err = __nfs_revalidate_inode(NFS_SERVER(inode), inode); else |