get rid of full-hash scan on detaching vfsmounts
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/pnode.c b/fs/pnode.c
index 3e000a5..98e0d3a 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -217,7 +217,7 @@
* @source_mnt: source mount.
* @tree_list : list of heads of trees to be attached.
*/
-int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry,
+int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
struct mount *source_mnt, struct list_head *tree_list)
{
struct mount *m, *child;
@@ -244,8 +244,8 @@
goto out;
}
- if (is_subdir(dest_dentry, m->mnt.mnt_root)) {
- mnt_set_mountpoint(m, dest_dentry, child);
+ if (is_subdir(dest_mp->m_dentry, m->mnt.mnt_root)) {
+ mnt_set_mountpoint(m, dest_mp, child);
list_add_tail(&child->mnt_hash, tree_list);
} else {
/*