Btrfs: avoid unnecessary ordered extent cache resets

[deliverable/linux.git] / fs / btrfs / ordered-data.c

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 69582d5b69d1f6064a77a409760a3ba1886b6d92..b8c2ded75fe26ff8251398d5953a0e71e6a8db09 100644 (file)
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -520,7 +520,8 @@ void btrfs_remove_ordered_extent(struct inode *inode,
        spin_lock_irq(&tree->lock);
        node = &entry->rb_node;
        rb_erase(node, &tree->tree);
-       tree->last = NULL;
+       if (tree->last == node)
+               tree->last = NULL;
        set_bit(BTRFS_ORDERED_COMPLETE, &entry->flags);
        spin_unlock_irq(&tree->lock);