1 files changed, 6 insertions, 7 deletions

diff --git a/fs/buffer.c b/fs/buffer.c
index 64b1e2065b6b..f3491074b035 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -185,10 +185,9 @@ EXPORT_SYMBOL(end_buffer_write_sync);
  * we get exclusion from try_to_free_buffers with the blockdev mapping's
  * private_lock.
  *
- * Hack idea: for the blockdev mapping, i_bufferlist_lock contention
+ * Hack idea: for the blockdev mapping, private_lock contention
  * may be quite high.  This code could TryLock the page, and if that
- * succeeds, there is no need to take private_lock. (But if
- * private_lock is contended then so is mapping->tree_lock).
+ * succeeds, there is no need to take private_lock.
  */
 static struct buffer_head *
 __find_get_block_slow(struct block_device *bdev, sector_t block)
@@ -599,14 +598,14 @@ void __set_page_dirty(struct page *page, struct address_space *mapping,
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&mapping->tree_lock, flags);
+        xa_lock_irqsave(&mapping->i_pages, flags);
         if (page->mapping) {    /* Race with truncate? */
                 WARN_ON_ONCE(warn && !PageUptodate(page));
                 account_page_dirtied(page, mapping);
-                radix_tree_tag_set(&mapping->page_tree,
+                radix_tree_tag_set(&mapping->i_pages,
                                 page_index(page), PAGECACHE_TAG_DIRTY);
         }
-        spin_unlock_irqrestore(&mapping->tree_lock, flags);
+        xa_unlock_irqrestore(&mapping->i_pages, flags);
 }
 EXPORT_SYMBOL_GPL(__set_page_dirty);
 
@@ -1096,7 +1095,7 @@ __getblk_slow(struct block_device *bdev, sector_t block,
  * inode list.
  *
  * mark_buffer_dirty() is atomic.  It takes bh->b_page->mapping->private_lock,
- * mapping->tree_lock and mapping->host->i_lock.
+ * i_pages lock and mapping->host->i_lock.
  */
 void mark_buffer_dirty(struct buffer_head *bh)
 {