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btrfs: switch args for comp_*_refs 

Make it more consistent, we want the inserted ref to be compared against
what's already in there.  This will make the order go from lowest seq ->
highest seq, which will make us more likely to make forward progress if
there's a seqlock currently held.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2017-10-19 14:15:58 -04:00 committed by David Sterba
parent 69fe2d75dd
commit c7ad7c8439
1 changed files with 4 additions and 4 deletions
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8
fs/btrfs/delayed-ref.c
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@ -40,8 +40,8 @@ struct kmem_cache *btrfs_delayed_extent_op_cachep;
/*
* compare two delayed tree backrefs with same bytenr and type
*/
static int comp_tree_refs(struct btrfs_delayed_tree_ref *ref2,
struct btrfs_delayed_tree_ref *ref1)
static int comp_tree_refs(struct btrfs_delayed_tree_ref *ref1,
struct btrfs_delayed_tree_ref *ref2)
{
if (ref1->node.type == BTRFS_TREE_BLOCK_REF_KEY) {
if (ref1->root < ref2->root)
@ -60,8 +60,8 @@ static int comp_tree_refs(struct btrfs_delayed_tree_ref *ref2,
/*
* compare two delayed data backrefs with same bytenr and type
*/
static int comp_data_refs(struct btrfs_delayed_data_ref *ref2,
struct btrfs_delayed_data_ref *ref1)
static int comp_data_refs(struct btrfs_delayed_data_ref *ref1,
struct btrfs_delayed_data_ref *ref2)
{
if (ref1->node.type == BTRFS_EXTENT_DATA_REF_KEY) {
if (ref1->root < ref2->root)