From e02119d5a7b4396c5a872582fddc8bd6d305a70a Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 5 Sep 2008 16:13:11 -0400 Subject: Btrfs: Add a write ahead tree log to optimize synchronous operations File syncs and directory syncs are optimized by copying their items into a special (copy-on-write) log tree. There is one log tree per subvolume and the btrfs super block points to a tree of log tree roots. After a crash, items are copied out of the log tree and back into the subvolume. See tree-log.c for all the details. Signed-off-by: Chris Mason --- fs/btrfs/tree-defrag.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/btrfs/tree-defrag.c') diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c index cc2650b06952..b3bb5bbad76e 100644 --- a/fs/btrfs/tree-defrag.c +++ b/fs/btrfs/tree-defrag.c @@ -81,12 +81,12 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, memcpy(&key, &root->defrag_progress, sizeof(key)); } - path->lowest_level = 1; path->keep_locks = 1; if (cache_only) min_trans = root->defrag_trans_start; - ret = btrfs_search_forward(root, &key, path, cache_only, min_trans); + ret = btrfs_search_forward(root, &key, NULL, path, + cache_only, min_trans); if (ret < 0) goto out; if (ret > 0) { -- cgit v1.2.3