From: Davidlohr Bueso <dave@stgolabs.net>
To: akpm@linux-foundation.org
Cc: manfred@colorfullife.com, dave@stgolabs.net,
linux-kernel@vger.kernel.org, Davidlohr Bueso <dbueso@suse.de>
Subject: [PATCH 4/5] ipc/sem: explicitly inline check_restart
Date: Mon, 12 Sep 2016 04:53:35 -0700 [thread overview]
Message-ID: <1473681216-20025-5-git-send-email-dave@stgolabs.net> (raw)
In-Reply-To: <1473681216-20025-1-git-send-email-dave@stgolabs.net>
The compiler already does this, but make it explicit. This helper
is really small and also used in update_queue's main loop, which is
O(N^2) scanning. Inline and avoid the function overhead.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
ipc/sem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ipc/sem.c b/ipc/sem.c
index d9c743ac17ff..3774b21c54d4 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -758,7 +758,7 @@ static void unlink_queue(struct sem_array *sma, struct sem_queue *q)
* modified the array.
* Note that wait-for-zero operations are handled without restart.
*/
-static int check_restart(struct sem_array *sma, struct sem_queue *q)
+static inline int check_restart(struct sem_array *sma, struct sem_queue *q)
{
/* pending complex alter operations are too difficult to analyse */
if (!list_empty(&sma->pending_alter))
--
2.6.6
next prev parent reply other threads:[~2016-09-12 11:54 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-12 11:53 [PATCH -next 0/5] ipc/sem: semop(2) improvements Davidlohr Bueso
2016-09-12 11:53 ` [PATCH 1/5] ipc/sem: do not call wake_sem_queue_do() prematurely Davidlohr Bueso
2016-09-13 4:17 ` Manfred Spraul
2016-09-13 8:14 ` Davidlohr Bueso
2016-09-12 11:53 ` [PATCH 2/5] ipc/sem: rework task wakeups Davidlohr Bueso
2016-09-13 18:04 ` Manfred Spraul
2016-09-14 15:45 ` Davidlohr Bueso
2016-09-18 14:37 ` Manfred Spraul
2016-09-18 18:26 ` Davidlohr Bueso
2016-09-12 11:53 ` [PATCH 3/5] ipc/sem: optimize perform_atomic_semop() Davidlohr Bueso
2016-09-12 17:56 ` Manfred Spraul
2016-09-13 8:33 ` Davidlohr Bueso
2016-09-19 4:41 ` Manfred Spraul
2016-09-12 11:53 ` Davidlohr Bueso [this message]
2016-09-12 11:53 ` [PATCH 5/5] ipc/sem: use proper list api for pending_list wakeups Davidlohr Bueso
2016-09-18 17:51 ` Manfred Spraul
-- strict thread matches above, loose matches on Subject: below --
2016-09-18 19:11 [PATCH -next v2 0/5] ipc/sem: semop(2) improvements Davidlohr Bueso
2016-09-18 19:11 ` [PATCH 4/5] ipc/sem: explicitly inline check_restart Davidlohr Bueso
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