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-rw-r--r--fs/btrfs/ctree.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 1e74cf826532..5361f69433a3 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2774,6 +2774,8 @@ again:
* contention with the cow code
*/
if (cow) {
+ bool last_level = (level == (BTRFS_MAX_LEVEL - 1));
+
/*
* if we don't really need to cow this block
* then we don't want to set the path blocking,
@@ -2798,9 +2800,13 @@ again:
}
btrfs_set_path_blocking(p);
- err = btrfs_cow_block(trans, root, b,
- p->nodes[level + 1],
- p->slots[level + 1], &b);
+ if (last_level)
+ err = btrfs_cow_block(trans, root, b, NULL, 0,
+ &b);
+ else
+ err = btrfs_cow_block(trans, root, b,
+ p->nodes[level + 1],
+ p->slots[level + 1], &b);
if (err) {
ret = err;
goto done;