Btrfs: Disable tree defrag in SSD mode

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

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 220e9be9ad82..af5d4a085280 100644
--- 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;
 }