From b4f359ab065b9c6c132124557d23e90e2e8504be Mon Sep 17 00:00:00 2001 From: Tsutomu Itoh Date: Thu, 13 Sep 2012 03:32:54 -0600 Subject: [PATCH] Btrfs: remove unnecessary code in btree_get_extent() Unnecessary lookup_extent_mapping() is removed because an error is returned to the caller. This patch was made based on the advice from Stefan Behrens, thanks. Signed-off-by: Tsutomu Itoh --- fs/btrfs/disk-io.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 8db87bc53d27..8d633e3e3919 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -217,16 +217,10 @@ static struct extent_map *btree_get_extent(struct inode *inode, write_lock(&em_tree->lock); ret = add_extent_mapping(em_tree, em); if (ret == -EEXIST) { - u64 failed_start = em->start; - u64 failed_len = em->len; - free_extent_map(em); em = lookup_extent_mapping(em_tree, start, len); - if (!em) { - lookup_extent_mapping(em_tree, failed_start, - failed_len); + if (!em) em = ERR_PTR(-EIO); - } } else if (ret) { free_extent_map(em); em = ERR_PTR(ret); -- 2.20.1