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Diffstat (limited to 'fs/pnode.c')
-rw-r--r--fs/pnode.c34
1 files changed, 8 insertions, 26 deletions
diff --git a/fs/pnode.c b/fs/pnode.c
index 4f6bdc185187..b81231711ad7 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -609,36 +609,18 @@ int propagate_umount(struct list_head *list)
return 0;
}
-/*
- * Iterates over all slaves, and slaves of slaves.
- */
-static struct mount *next_descendent(struct mount *root, struct mount *cur)
-{
- if (!IS_MNT_NEW(cur) && !list_empty(&cur->mnt_slave_list))
- return first_slave(cur);
- do {
- struct mount *master = cur->mnt_master;
-
- if (!master || cur->mnt_slave.next != &master->mnt_slave_list) {
- struct mount *next = next_slave(cur);
-
- return (next == root) ? NULL : next;
- }
- cur = master;
- } while (cur != root);
- return NULL;
-}
-
void propagate_remount(struct mount *mnt)
{
- struct mount *m = mnt;
+ struct mount *parent = mnt->mnt_parent;
+ struct mount *p = mnt, *m;
struct super_block *sb = mnt->mnt.mnt_sb;
- if (sb->s_op->copy_mnt_data) {
- m = next_descendent(mnt, m);
- while (m) {
+ if (!sb->s_op->copy_mnt_data)
+ return;
+ for (p = propagation_next(parent, parent); p;
+ p = propagation_next(p, parent)) {
+ m = __lookup_mnt(&p->mnt, mnt->mnt_mountpoint);
+ if (m)
sb->s_op->copy_mnt_data(m->mnt.data, mnt->mnt.data);
- m = next_descendent(mnt, m);
- }
}
}