Btrfs: Disable tree defrag in SSD mode

[linux-2.6-block.git] / fs / btrfs / extent-tree.c

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 220e9be9ad82475a380e9c0e4b144ff9666c30b4..af5d4a085280ba4a67bfd863a348bf40a409feff 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1835,7 +1835,8 @@ struct extent_buffer *__btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
                        buf->start, buf->start + buf->len - 1,
                        EXTENT_CSUM, GFP_NOFS);
        buf->flags |= EXTENT_CSUM;
-       btrfs_set_buffer_defrag(buf);
+       if (!btrfs_test_opt(root, SSD))
+               btrfs_set_buffer_defrag(buf);
        trans->blocks_used++;
        return buf;
 }