Fix path slots selection in btrfs_search_forward

We should decrease the found slot by one as btrfs_search_slot does
when bin_search return 1 and node level > 0.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index f2a94999c371..ab4ac0365c7f 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2992,6 +2992,7 @@ int btrfs_search_forward(struct btrfs_root *root, struct btrfs_key *min_key,
         struct extent_buffer *cur;
         struct btrfs_key found_key;
         int slot;
+        int sret;
         u32 nritems;
         int level;
         int ret = 1;
@@ -3009,7 +3010,7 @@ again:
         while(1) {
                 nritems = btrfs_header_nritems(cur);
                 level = btrfs_header_level(cur);
-                bin_search(cur, min_key, level, &slot);
+                sret = bin_search(cur, min_key, level, &slot);
 
                 /* at level = 0, we're done, setup the path and exit */
                 if (level == 0) {
@@ -3018,6 +3019,8 @@ again:
                         btrfs_item_key_to_cpu(cur, &found_key, slot);
                         goto out;
                 }
+                if (sret && slot > 0)
+                        slot--;
                 /*
                  * check this node pointer against the cache_only and
                  * min_trans parameters.  If it isn't in cache or is too