overlayfs: Make f_path always point to the overlay and f_inode to the underlay

[cascardo/linux.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 656ce52..c4ce351 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1239,13 +1239,13 @@ ascend:
                /* might go back up the wrong parent if we have had a rename. */
                if (need_seqretry(&rename_lock, seq))
                        goto rename_retry;
-               next = child->d_child.next;
-               while (unlikely(child->d_flags & DCACHE_DENTRY_KILLED)) {
+               /* go into the first sibling still alive */
+               do {
+                       next = child->d_child.next;
                        if (next == &this_parent->d_subdirs)
                                goto ascend;
                        child = list_entry(next, struct dentry, d_child);
-                       next = next->next;
-               }
+               } while (unlikely(child->d_flags & DCACHE_DENTRY_KILLED));
                rcu_read_unlock();
                goto resume;
        }
@@ -1673,7 +1673,8 @@ void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op)
                                DCACHE_OP_COMPARE       |
                                DCACHE_OP_REVALIDATE    |
                                DCACHE_OP_WEAK_REVALIDATE       |
-                               DCACHE_OP_DELETE ));
+                               DCACHE_OP_DELETE        |
+                               DCACHE_OP_SELECT_INODE));
        dentry->d_op = op;
        if (!op)
                return;
@@ -1689,6 +1690,8 @@ void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op)
                dentry->d_flags |= DCACHE_OP_DELETE;
        if (op->d_prune)
                dentry->d_flags |= DCACHE_OP_PRUNE;
+       if (op->d_select_inode)
+               dentry->d_flags |= DCACHE_OP_SELECT_INODE;
 
 }
 EXPORT_SYMBOL(d_set_d_op);