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| author | Chris Mason <chris.mason@oracle.com> | 2008-02-15 13:19:35 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:00 -0400 |
| commit | 9afbb0b752ef30a429c45b9de6706e28ad1a36e1 (patch) | |
| tree | 2e1d749ced02b62282fe899237c7595ebb6add63 /fs/btrfs | |
| parent | df68b8a7ad4a18c9e63f1c12015a59c3b7031adb (diff) | |
| download | lwn-9afbb0b752ef30a429c45b9de6706e28ad1a36e1.tar.gz lwn-9afbb0b752ef30a429c45b9de6706e28ad1a36e1.zip | |
Btrfs: Disable tree defrag in SSD mode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 3 | ||||
| -rw-r--r-- | fs/btrfs/tree-defrag.c | 3 |
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; |