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| author | Ram Pai <linuxram@us.ibm.com> | 2005-11-07 17:20:48 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 18:18:11 -0800 |
| commit | a58b0eb8e64b78d9315a5491955e78b1391d42e5 (patch) | |
| tree | 546f77cb0338c817ef1e34d8ebbc6eaf0e5d6be9 /include | |
| parent | a05964f3917c7c55368c229d7985f8e7c9977e97 (diff) | |
| download | linux-a58b0eb8e64b78d9315a5491955e78b1391d42e5.tar.gz linux-a58b0eb8e64b78d9315a5491955e78b1391d42e5.tar.bz2 linux-a58b0eb8e64b78d9315a5491955e78b1391d42e5.zip | |
[PATCH] introduce slave mounts
A slave mount always has a master mount from which it receives
mount/umount events. Unlike shared mount the event propagation does not
flow from the slave mount to the master.
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 'include')
| -rw-r--r-- | include/linux/fs.h | 1 | ||||
| -rw-r--r-- | include/linux/mount.h | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 8bdb504be73b..eef66f54c017 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -105,6 +105,7 @@ extern int dir_notify_enable; #define MS_REC 16384 #define MS_VERBOSE 32768 #define MS_PRIVATE (1<<18) /* change to private */ +#define MS_SLAVE (1<<19) /* change to slave */ #define MS_SHARED (1<<20) /* change to shared */ #define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ #define MS_ACTIVE (1<<30) diff --git a/include/linux/mount.h b/include/linux/mount.h index 2582559718fc..7e133ae2a94f 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -38,6 +38,9 @@ struct vfsmount { struct list_head mnt_list; struct list_head mnt_expire; /* link in fs-specific expiry list */ struct list_head mnt_share; /* circular list of shared mounts */ + struct list_head mnt_slave_list;/* list of slave mounts */ + struct list_head mnt_slave; /* slave list entry */ + struct vfsmount *mnt_master; /* slave is on master->mnt_slave_list */ struct namespace *mnt_namespace; /* containing namespace */ int mnt_pinned; }; |