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| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-01-31 06:51:25 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-03-03 22:07:57 +0300 |
| commit | 1f707137b55764740981d022d29c622832a61880 (patch) | |
| tree | af5f72ea7df1afbc1f3b5bb53a3ab3d8ebaae1e0 /fs/namespace.c | |
| parent | 462d60577a997aa87c935ae4521bd303733a9f2b (diff) | |
| download | linux-1f707137b55764740981d022d29c622832a61880.tar.xz | |
new helper: iterate_mounts()
apply function to vfsmounts in set returned by collect_mounts(),
stop if it returns non-zero.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index d25d4602ab50..d5906c19e08e 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1246,6 +1246,21 @@ void drop_collected_mounts(struct vfsmount *mnt) release_mounts(&umount_list); } +int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg, + struct vfsmount *root) +{ + struct vfsmount *mnt; + int res = f(root, arg); + if (res) + return res; + list_for_each_entry(mnt, &root->mnt_list, mnt_list) { + res = f(mnt, arg); + if (res) + return res; + } + return 0; +} + static void cleanup_group_ids(struct vfsmount *mnt, struct vfsmount *end) { struct vfsmount *p; |