From: Alexandre Oliva <oliva@gnu.org>
Date: Tue, 23 Sep 2014 15:49:58 +0000 (+0200)
Subject: btrfs-progs: repair: remove recowed entry from the to-recow list
X-Git-Tag: upstream/4.16.1~2663
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ca1e04597ada5b767cf883e59eb7e79196ae8487;p=platform%2Fupstream%2Fbtrfs-progs.git

btrfs-progs: repair: remove recowed entry from the to-recow list

If we attempt to repair a filesystem with metadata blocks that need
recowing, we'll get into an infinite loop repeatedly recowing the
first entry in the list, without ever removing it from the list.
Oops.  Fixed.

Signed-off-by: Alexandre Oliva <oliva@gnu.org>
Signed-off-by: David Sterba <dsterba@suse.cz>
---

diff --git a/cmds-check.c b/cmds-check.c
index c0a9870..7a86077 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -7034,6 +7034,7 @@ int cmd_check(int argc, char **argv)
 
 		eb = list_first_entry(&root->fs_info->recow_ebs,
 				      struct extent_buffer, recow);
+		list_del_init(&eb->recow);
 		ret = recow_extent_buffer(root, eb);
 		if (ret)
 			break;