From fc33a7bb9c6dd8f6e4a014976200f8fdabb3a45c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 9 Jan 2006 20:52:17 -0800 Subject: [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mount.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include/linux/mount.h') diff --git a/include/linux/mount.h b/include/linux/mount.h index b98a709f179..b7472ae91fa 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; -- cgit v1.2.3