diff options
| author | Ram Pai <linuxram@us.ibm.com> | 2005-11-07 23:19:50 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-08 03:18:11 +0100 |
| commit | b90fa9ae8f51f098ee480bbaabd6867992e9fc58 (patch) | |
| tree | 2ad583b3a7399face7a78730b001928413c8269e /fs/pnode.h | |
| parent | [PATCH] introduce shared mounts (diff) | |
| download | linux-b90fa9ae8f51f098ee480bbaabd6867992e9fc58.tar.xz linux-b90fa9ae8f51f098ee480bbaabd6867992e9fc58.zip | |
[PATCH] shared mount handling: bind and rbind
Implement handling of MS_BIND in presense of shared mounts (see
Documentation/sharedsubtree.txt in the end of patch series for detailed
description).
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/pnode.h')
| -rw-r--r-- | fs/pnode.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/pnode.h b/fs/pnode.h index ab1bdaee4e08..c62c72fad212 100644 --- a/fs/pnode.h +++ b/fs/pnode.h @@ -12,7 +12,21 @@ #include <linux/mount.h> #define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED) +#define IS_MNT_NEW(mnt) (!mnt->mnt_namespace) #define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED) +#define CL_EXPIRE 0x01 +#define CL_COPY_ALL 0x04 +#define CL_MAKE_SHARED 0x08 +#define CL_PROPAGATION 0x10 + +static inline void set_mnt_shared(struct vfsmount *mnt) +{ + mnt->mnt_flags &= ~MNT_PNODE_MASK; + mnt->mnt_flags |= MNT_SHARED; +} + void change_mnt_propagation(struct vfsmount *, int); +int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *, + struct list_head *); #endif /* _LINUX_PNODE_H */ |