diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-21 08:54:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-21 08:54:32 -0700 |
| commit | 2fb59d623ad85dfdb8ce03a660051743f7361896 (patch) | |
| tree | 3991ab2b88cc369444c136089d9c1570c26c6072 /fs/namespace.c | |
| parent | efdc31319d43050a5742fb690b1a4beb68092a94 (diff) | |
| parent | 74c3cbe33bc077ac1159cadfea608b501e100344 (diff) | |
Merge branch 'audit.b43' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current
* 'audit.b43' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
[PATCH] audit: watching subtrees
[PATCH] new helper - inotify_evict_watch()
[PATCH] new helper - inotify_clone_watch()
[PATCH] new helpers - collect_mounts() and release_collected_mounts()
[PATCH] pass dentry to audit_inode()/audit_inode_child()
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 860752998fb..06083885b21 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -246,7 +246,7 @@ static struct vfsmount *clone_mnt(struct vfsmount *old, struct dentry *root, list_add(&mnt->mnt_slave, &old->mnt_slave_list); mnt->mnt_master = old; CLEAR_MNT_SHARED(mnt); - } else { + } else if (!(flag & CL_PRIVATE)) { if ((flag & CL_PROPAGATION) || IS_MNT_SHARED(old)) list_add(&mnt->mnt_share, &old->mnt_share); if (IS_MNT_SLAVE(old)) @@ -746,6 +746,26 @@ Enomem: return NULL; } +struct vfsmount *collect_mounts(struct vfsmount *mnt, struct dentry *dentry) +{ + struct vfsmount *tree; + down_read(&namespace_sem); + tree = copy_tree(mnt, dentry, CL_COPY_ALL | CL_PRIVATE); + up_read(&namespace_sem); + return tree; +} + +void drop_collected_mounts(struct vfsmount *mnt) +{ + LIST_HEAD(umount_list); + down_read(&namespace_sem); + spin_lock(&vfsmount_lock); + umount_tree(mnt, 0, &umount_list); + spin_unlock(&vfsmount_lock); + up_read(&namespace_sem); + release_mounts(&umount_list); +} + /* * @source_mnt : mount tree to be attached * @nd : place the mount tree @source_mnt is attached |