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| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2013-03-12 13:59:13 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-03-12 13:59:13 -0700 |
| commit | 92266d6ef60c2381c980c6cdcb2a5c1667b36b49 (patch) | |
| tree | fe785136c54cbfb3f6ec837e2ae9e2f467c699ea | |
| parent | 6dbe51c251a327e012439c4772097a13df43c5b8 (diff) | |
| download | linux-92266d6ef60c2381c980c6cdcb2a5c1667b36b49.tar.bz2 | |
async: simplify lowest_in_progress()
The code in lowest_in_progress() are duplicated in two branches,
simplify them.
tj: Minor indentation adjustment.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
| -rw-r--r-- | kernel/async.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/kernel/async.c b/kernel/async.c index 8ddee2c3e5b0..ab99c92f6b68 100644 --- a/kernel/async.c +++ b/kernel/async.c @@ -84,24 +84,20 @@ static atomic_t entry_count; static async_cookie_t lowest_in_progress(struct async_domain *domain) { - struct async_entry *first = NULL; + struct list_head *pending; async_cookie_t ret = ASYNC_COOKIE_MAX; unsigned long flags; spin_lock_irqsave(&async_lock, flags); - if (domain) { - if (!list_empty(&domain->pending)) - first = list_first_entry(&domain->pending, - struct async_entry, domain_list); - } else { - if (!list_empty(&async_global_pending)) - first = list_first_entry(&async_global_pending, - struct async_entry, global_list); - } + if (domain) + pending = &domain->pending; + else + pending = &async_global_pending; - if (first) - ret = first->cookie; + if (!list_empty(pending)) + ret = list_first_entry(pending, struct async_entry, + domain_list)->cookie; spin_unlock_irqrestore(&async_lock, flags); return ret; |