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btrfs: delayed-ref: pass delayed_refs directly to btrfs_select_ref_head 

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

Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.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 13:40:33 +08:00 committed by David Sterba
parent b90e22ba48
commit 5637c74b01
3 changed files with 5 additions and 8 deletions
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7
fs/btrfs/delayed-ref.c
View File

@ -353,16 +353,13 @@ int btrfs_check_delayed_seq(struct btrfs_fs_info *fs_info, u64 seq)
return ret;
}
struct btrfs_delayed_ref_head *
btrfs_select_ref_head(struct btrfs_trans_handle *trans)
struct btrfs_delayed_ref_head *btrfs_select_ref_head(
struct btrfs_delayed_ref_root *delayed_refs)
{
struct btrfs_delayed_ref_root *delayed_refs;
struct btrfs_delayed_ref_head *head;
u64 start;
bool loop = false;
delayed_refs = &trans->transaction->delayed_refs;
again:
start = delayed_refs->run_delayed_start;
head = find_ref_head(delayed_refs, start, 1);

4
fs/btrfs/delayed-ref.h
View File

@ -263,8 +263,8 @@ static inline void btrfs_delayed_ref_unlock(struct btrfs_delayed_ref_head *head)
}
struct btrfs_delayed_ref_head *
btrfs_select_ref_head(struct btrfs_trans_handle *trans);
struct btrfs_delayed_ref_head *btrfs_select_ref_head(
struct btrfs_delayed_ref_root *delayed_refs);
int btrfs_check_delayed_seq(struct btrfs_fs_info *fs_info, u64 seq);

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

@ -2511,7 +2511,7 @@ static struct btrfs_delayed_ref_head *btrfs_obtain_ref_head(
int ret;
spin_lock(&delayed_refs->lock);
head = btrfs_select_ref_head(trans);
head = btrfs_select_ref_head(delayed_refs);
if (!head) {
spin_unlock(&delayed_refs->lock);
return head;