linux/fs/pnode.h, branch v2.6.19Linux kernel source treehttps://git.amat.us/linux/atom/fs/pnode.h?h=v2.6.192005-11-08T02:18:11Z[PATCH] unbindable mounts2005-11-08T02:18:11ZRam Pailinuxram@us.ibm.com2005-11-07T22:21:20Zurn:sha1:9676f0c6389b62bd6b24d77d4b3abdbcfa32d0f2
An unbindable mount does not forward or receive propagation. Also
unbindable mount disallows bind mounts. The semantics is as follows.
Bind semantics:
It is invalid to bind mount an unbindable mount.
Move semantics:
It is invalid to move an unbindable mount under shared mount.
Clone-namespace semantics:
If a mount is unbindable in the parent namespace, the corresponding
cloned mount in the child namespace becomes unbindable too. Note:
there is subtle difference, unbindable mounts cannot be bind mounted
but can be cloned during clone-namespace.
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>
[PATCH] introduce slave mounts2005-11-08T02:18:11ZRam Pailinuxram@us.ibm.com2005-11-07T22:20:48Zurn:sha1:a58b0eb8e64b78d9315a5491955e78b1391d42e5
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>
[PATCH] shared mounts handling: umount2005-11-08T02:18:11ZRam Pailinuxram@us.ibm.com2005-11-07T22:20:17Zurn:sha1:a05964f3917c7c55368c229d7985f8e7c9977e97
An unmount of a mount creates a umount event on the parent. If the
parent is a shared mount, it gets propagated to all mounts in the peer
group.
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>
[PATCH] shared mount handling: bind and rbind2005-11-08T02:18:11ZRam Pailinuxram@us.ibm.com2005-11-07T22:19:50Zurn:sha1:b90fa9ae8f51f098ee480bbaabd6867992e9fc58
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>
[PATCH] introduce shared mounts2005-11-08T02:18:10ZRam Pailinuxram@us.ibm.com2005-11-07T22:19:33Zurn:sha1:03e06e68ff76294e53ffa898cb844d2a997b043e
This creates shared mounts. A shared mount when bind-mounted to some
mountpoint, propagates mount/umount events to each other. All the
shared mounts that propagate events to each other belong to the same
peer-group.
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>
[PATCH] beginning of the shared-subtree proper2005-11-08T02:18:10ZRam Pailinuxram@us.ibm.com2005-11-07T22:19:07Zurn:sha1:07b20889e3052c7e77d6a6a54e7e83446eb1ba84
A private mount does not forward or receive propagation. This patch
provides user the ability to convert any mount to private.
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>