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btrfs: delayed-ref: pass delayed_refs directly to btrfs_delayed_ref_lock 

Since trans is only used for referring to delayed_refs, there is no need
to pass it instead of delayed_refs to btrfs_delayed_ref_lock().

No functional change.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Lu Fengqi 2018-10-11 13:40:34 +08:00 committed by David Sterba
parent 5637c74b01
commit 9e920a6f03
3 changed files with 3 additions and 6 deletions
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5
fs/btrfs/delayed-ref.c
View File

@ -204,12 +204,9 @@ static struct btrfs_delayed_ref_head* find_ref_head(
return NULL;
}
int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
int btrfs_delayed_ref_lock(struct btrfs_delayed_ref_root *delayed_refs,
struct btrfs_delayed_ref_head *head)
{
struct btrfs_delayed_ref_root *delayed_refs;
delayed_refs = &trans->transaction->delayed_refs;
lockdep_assert_held(&delayed_refs->lock);
if (mutex_trylock(&head->mutex))
return 0;

2
fs/btrfs/delayed-ref.h
View File

@ -255,7 +255,7 @@ void btrfs_merge_delayed_refs(struct btrfs_trans_handle *trans,
struct btrfs_delayed_ref_head *
btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
u64 bytenr);
int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
int btrfs_delayed_ref_lock(struct btrfs_delayed_ref_root *delayed_refs,
struct btrfs_delayed_ref_head *head);
static inline void btrfs_delayed_ref_unlock(struct btrfs_delayed_ref_head *head)
{

2
fs/btrfs/extent-tree.c
View File

@ -2521,7 +2521,7 @@ static struct btrfs_delayed_ref_head *btrfs_obtain_ref_head(
* Grab the lock that says we are going to process all the refs for
* this head
*/
ret = btrfs_delayed_ref_lock(trans, head);
ret = btrfs_delayed_ref_lock(delayed_refs, head);
spin_unlock(&delayed_refs->lock);
/*