commit 7c829b722dffb22aaf9e3ea1b1d88dac49bd0768
author Anand Jain <anand.jain@oracle.com> Wed Mar 07 17:29:18 2018 +0800
committer David Sterba <dsterba@suse.com> Sat Mar 31 01:26:50 2018 +0200
tree 1dba1902eb1013a71c51ae2a4bb594b55729be4c
parent 051c98eb11e6fd64a8306851c34ee485b5817955

btrfs: add define for oldest generation

Some functions can filter metadata by the generation. Add a define that
will annotate such arguments.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/uuid-tree.c

diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c
index 726f928..9916f03 100644
--- a/fs/btrfs/uuid-tree.c
+++ b/fs/btrfs/uuid-tree.c
@@ -282,7 +282,7 @@ int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info,
 	key.offset = 0;
 
 again_search_slot:
-	ret = btrfs_search_forward(root, &key, path, 0);
+	ret = btrfs_search_forward(root, &key, path, BTRFS_OLDEST_GENERATION);
 	if (ret) {
 		if (ret > 0)
 			ret = 0;