Btrfs: Disable tree defrag in SSD mode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 220e9be..af5d4a0 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1835,7 +1835,8 @@
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 5c58630..5935cbd 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -179,6 +179,9 @@
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;