Btrfs: Allocator improvements

Reduce CPU time searching for free blocks by optimizing find_first_extent_bit

Fix find_free_extent to make better use of the last_alloc hint.  Before it
was often finding blocks just before the hint.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 6f0825b617d1..88e21bdbc478 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -951,7 +951,7 @@ void btrfs_throttle(struct btrfs_root *root)
 void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
 {
         balance_dirty_pages_ratelimited_nr(
-                        root->fs_info->btree_inode->i_mapping, 1);
+                                   root->fs_info->btree_inode->i_mapping, 1);
 }
 
 void btrfs_set_buffer_defrag(struct extent_buffer *buf)