From 488111aa0e17102d42e0328299fd782dc6a4a051 Mon Sep 17 00:00:00 2001 From: Filipe David Borba Manana Date: Mon, 28 Oct 2013 16:30:29 +0000 Subject: [PATCH] Btrfs: fix csum search offset/length calculation in log tree We were setting the csums search offset and length to the right values if the extent is compressed, but later on right before doing the csums lookup we were overriding these two parameters regardless of compression being set or not for the extent. Signed-off-by: Filipe David Borba Manana Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/tree-log.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 257cbae8c948..18891c009641 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -3421,11 +3421,6 @@ static int log_one_extent(struct btrfs_trans_handle *trans, if (skip_csum) return 0; - if (em->compress_type) { - csum_offset = 0; - csum_len = block_len; - } - /* * First check and see if our csums are on our outstanding ordered * extents. @@ -3509,8 +3504,13 @@ unlocked: if (!mod_len || ret) return ret; - csum_offset = mod_start - em->start; - csum_len = mod_len; + if (em->compress_type) { + csum_offset = 0; + csum_len = block_len; + } else { + csum_offset = mod_start - em->start; + csum_len = mod_len; + } /* block start is already adjusted for the file extent offset. */ ret = btrfs_lookup_csums_range(log->fs_info->csum_root, -- 2.30.2