Btrfs: Disable tree defrag in SSD mode

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

2 files changed, 5 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;
 }
diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c
index 5c58630dce03..5935cbd8f2b8 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -179,6 +179,9 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
         if (root->ref_cows == 0 && !is_extent)
                 goto out;
 
+        if (btrfs_test_opt(root, SSD))
+                goto out;
+
         path = btrfs_alloc_path();
         if (!path)
                 return -ENOMEM;