Btrfs: Add delayed iput
iput() can trigger new transactions if we are dropping the
final reference, so calling it in btrfs_commit_transaction
may end up deadlock. This patch adds delayed iput to avoid
the issue.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 4a86508..fcdccfa 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2880,9 +2880,9 @@
root = async->root;
info = async->info;
- btrfs_start_delalloc_inodes(root);
+ btrfs_start_delalloc_inodes(root, 0);
wake_up(&info->flush_wait);
- btrfs_wait_ordered_extents(root, 0);
+ btrfs_wait_ordered_extents(root, 0, 0);
spin_lock(&info->lock);
info->flushing = 0;
@@ -2956,8 +2956,8 @@
return;
flush:
- btrfs_start_delalloc_inodes(root);
- btrfs_wait_ordered_extents(root, 0);
+ btrfs_start_delalloc_inodes(root, 0);
+ btrfs_wait_ordered_extents(root, 0, 0);
spin_lock(&info->lock);
info->flushing = 0;