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authorChris Mason <chris.mason@oracle.com>2008-02-15 13:19:35 -0500
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:00 -0400
commit9afbb0b752ef30a429c45b9de6706e28ad1a36e1 (patch)
tree2e1d749ced02b62282fe899237c7595ebb6add63
parentdf68b8a7ad4a18c9e63f1c12015a59c3b7031adb (diff)
Btrfs: Disable tree defrag in SSD mode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
-rw-r--r--fs/btrfs/extent-tree.c3
-rw-r--r--fs/btrfs/tree-defrag.c3
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;