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Commit ed7b63eb authored by Josef Bacik's avatar Josef Bacik Committed by Chris Mason
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Btrfs: only clear dirty on the buffer if it is marked as dirty 



No reason to set the path blocking or loop through all of the pages if the
extent buffer isn't actually marked dirty.  Thanks,

Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent bb146eb2

fs/btrfs/disk-io.c

+4 −4
Original line number Diff line number Diff line
@@ -1142,13 +1142,13 @@ void clean_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, 
					  root->fs_info->dirty_metadata_bytes);

			}

			spin_unlock(&root->fs_info->delalloc_lock);

		}



			/* ugh, clear_extent_buffer_dirty needs to lock the page */

			btrfs_set_lock_blocking(buf);

			clear_extent_buffer_dirty(buf);

		}

	}

}



static void __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,

			 u32 stripesize, struct btrfs_root *root,