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authorArnd Bergmann <arnd@arndb.de>2012-07-17 22:25:03 +0200
committerArnd Bergmann <arnd@arndb.de>2012-07-17 22:25:03 +0200
commit45bcc91aca328ba33f39cd711cf70b46ddd41ba0 (patch)
treee2cf2730ea8181e61b04f57760c49f0c13772669 /fs/btrfs/backref.c
parentf923c8e887d6eed9f14937b8e09a8f5a7d5941d5 (diff)
parent0da47184eafe0eb3ddb1340a70f8a150b477b6a0 (diff)
Merge branch 'clps711x/cleanup' into next/cleanup
Patches from Alexander Shiyan <shc_work@mail.ru>: * clps711x/cleanup: ARM: clps711x: Remove the setting of the time ARM: clps711x: Removed superfluous transform virt_to_bus and related functions ARM: clps711x/p720t: Replace __initcall by .init_early call Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/btrfs/backref.c')
-rw-r--r--fs/btrfs/backref.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 7301cdb4b2c..a383c18e74e 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -301,10 +301,14 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info,
goto out;
eb = path->nodes[level];
- if (!eb) {
- WARN_ON(1);
- ret = 1;
- goto out;
+ while (!eb) {
+ if (!level) {
+ WARN_ON(1);
+ ret = 1;
+ goto out;
+ }
+ level--;
+ eb = path->nodes[level];
}
ret = add_all_parents(root, path, parents, level, &ref->key_for_search,
@@ -835,6 +839,7 @@ again:
}
ret = __add_delayed_refs(head, delayed_ref_seq,
&prefs_delayed);
+ mutex_unlock(&head->mutex);
if (ret) {
spin_unlock(&delayed_refs->lock);
goto out;
@@ -928,8 +933,6 @@ again:
}
out:
- if (head)
- mutex_unlock(&head->mutex);
btrfs_free_path(path);
while (!list_empty(&prefs)) {
ref = list_first_entry(&prefs, struct __prelim_ref, list);