linux/fs/pnode.h, branch v3.0.36

VFS: Clean up shared mount flag propagation

2010-03-03T19:07:55Z

The handling of mount flags in set_mnt_shared() got a little tangled up during previous cleanups, with the following problems: * MNT_PNODE_MASK is defined as a literal constant when it should be a bitwise xor of other MNT_* flags * set_mnt_shared() clears and then sets MNT_SHARED (part of MNT_PNODE_MASK) * MNT_PNODE_MASK could use a comment in mount.h * MNT_PNODE_MASK is a terrible name, change to MNT_SHARED_MASK This patch fixes these problems. Signed-off-by: Al Viro

Kill CL_PROPAGATION, sanitize fs/pnode.c:get_source()

2010-03-03T18:00:22Z

First of all, get_source() never results in CL_PROPAGATION alone. We either get CL_MAKE_SHARED (for the continuation of peer group) or CL_SLAVE (slave that is not shared) or both (beginning of peer group among slaves). Massage the code to make that explicit, kill CL_PROPAGATION test in clone_mnt() (nothing sets CL_MAKE_SHARED without CL_PROPAGATION and in clone_mnt() we are checking CL_PROPAGATION after we'd found that there's no CL_SLAVE, so the check for CL_MAKE_SHARED would do just as well). Fix comments, while we are at it... Signed-off-by: Al Viro

[patch 7/7] vfs: mountinfo: show dominating group id

2008-04-23T04:05:09Z

Show peer group ID of nearest dominating group that has intersection with the mount's namespace. Signed-off-by: Miklos Szeredi Signed-off-by: Al Viro

[PATCH] teach seq_file to discard entries

2008-04-22T03:14:02Z

Allow ->show() return SEQ_SKIP; that will discard all output from that element and move on. Signed-off-by: Al Viro

[PATCH] new helpers - collect_mounts() and release_collected_mounts()

2007-10-21T06:37:25Z

Get a snapshot of a subtree, creating private clones of vfsmounts for all its components and release such snapshot resp. Signed-off-by: Al Viro

[PATCH] rename struct namespace to struct mnt_namespace

2006-12-08T16:28:51Z

Rename 'struct namespace' to 'struct mnt_namespace' to avoid confusion with other namespaces being developped for the containers : pid, uts, ipc, etc. 'namespace' variables and attributes are also renamed to 'mnt_ns' Signed-off-by: Kirill Korotaev Signed-off-by: Cedric Le Goater Cc: Eric W. Biederman Cc: Herbert Poetzl Cc: Sukadev Bhattiprolu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] unbindable mounts

2005-11-08T02:18:11Z

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 Signed-off-by: Al Viro Signed-off-by: Linus Torvalds

[PATCH] introduce slave mounts

2005-11-08T02:18:11Z

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 Signed-off-by: Al Viro Signed-off-by: Linus Torvalds

[PATCH] shared mounts handling: umount

2005-11-08T02:18:11Z

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 Signed-off-by: Al Viro Signed-off-by: Linus Torvalds

[PATCH] shared mount handling: bind and rbind

2005-11-08T02:18:11Z

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 Signed-off-by: Al Viro Signed-off-by: Linus Torvalds