From f395694c2cd76cb1882fa82dd37e761598367fe9 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Thu, 31 May 2012 15:02:32 +0200 Subject: [PATCH] Btrfs: fix tree mod log del_ptr Logging for del_ptr when we're not deleting the last pointer was wrong. This fixes both, duplicate log entries and log sequence. Signed-off-by: Jan Schmidt --- fs/btrfs/ctree.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index c7c4848..63147c1 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -540,9 +540,8 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info, int ret; int i; - ret = tree_mod_alloc(fs_info, flags, &tm); - if (ret <= 0) - return ret; + if (tree_mod_dont_log(fs_info, eb)) + return 0; for (i = 0; i + dst_slot < src_slot && i < nr_items; i++) { ret = tree_mod_log_insert_key(fs_info, eb, i + dst_slot, @@ -550,6 +549,10 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info, BUG_ON(ret < 0); } + ret = tree_mod_alloc(fs_info, flags, &tm); + if (ret <= 0) + return ret; + tm->index = eb->start >> PAGE_CACHE_SHIFT; tm->slot = src_slot; tm->move.dst_slot = dst_slot; @@ -4548,9 +4551,7 @@ static void del_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root, btrfs_node_key_ptr_offset(slot + 1), sizeof(struct btrfs_key_ptr) * (nritems - slot - 1)); - } - - if (tree_mod_log && level) { + } else if (tree_mod_log && level) { ret = tree_mod_log_insert_key(root->fs_info, parent, slot, MOD_LOG_KEY_REMOVE); BUG_ON(ret < 0); -- 2.7.4