Here %path is set with ->leave_spinning=1, thus it'll hold the rwlock
after btrfs_search_slot(), however, when processing delayed items in
__btrfs_commit_inode_delayed_items(), it goes to acquire node->mutex
which might sleep, that is, it may sleep under spin_lock.
Given node->mutex is necessary to avoid race between async works, this
remove the ->leave_spining setting.
Signed-off-by: Liu Bo <bo.li....@oracle.com>
---
fs/btrfs/delayed-inode.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 19e4ad2..a857a2f 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1331,7 +1331,6 @@ static void btrfs_async_run_delayed_root(struct
btrfs_work *work)
if (!delayed_node)
goto free_path;
- path->leave_spinning = 1;
root = delayed_node->root;
trans = btrfs_join_transaction(root);
--
2.9.4
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