From: Anton Vorontsov <anton.vorontsov@linaro.org>
To: Oleg Nesterov <oleg@redhat.com>, Greg KH <gregkh@linuxfoundation.org>
Cc: "Arve Hjønnevåg" <arve@android.com>,
"KOSAKI Motohiro" <kosaki.motohiro@gmail.com>,
"San Mehat" <san@google.com>, "Colin Cross" <ccross@android.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org, kernel-team@android.com,
linaro-kernel@lists.linaro.org
Subject: [PATCH 5/6] staging: android/lowmemorykiller: No need for task->signal check
Date: Mon, 6 Feb 2012 20:29:54 +0400 [thread overview]
Message-ID: <20120206162954.GE5117@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <20120203163056.GA4190@redhat.com>
task->signal == NULL is not possible, so no need for these checks.
Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
---
drivers/staging/android/lowmemorykiller.c | 8 +-------
1 files changed, 1 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index 0755e2f..6e800d3 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -136,19 +136,13 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
rcu_read_lock();
for_each_process(tsk) {
struct task_struct *p;
- struct signal_struct *sig;
int oom_adj;
p = find_lock_task_mm(tsk);
if (!p)
continue;
- sig = p->signal;
- if (!sig) {
- task_unlock(p);
- continue;
- }
- oom_adj = sig->oom_adj;
+ oom_adj = p->signal->oom_adj;
if (oom_adj < min_adj) {
task_unlock(p);
continue;
--
1.7.7.6
next prev parent reply other threads:[~2012-02-06 16:29 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-01 4:33 [PATCH] staging: android/lowmemorykiller: Don't grab tasklist_lock Anton Vorontsov
2012-02-02 12:54 ` Oleg Nesterov
2012-02-02 17:16 ` Anton Vorontsov
2012-02-03 0:03 ` [PATCH v3] " Anton Vorontsov
2012-02-03 16:36 ` Oleg Nesterov
2012-02-03 16:30 ` [PATCH] " Oleg Nesterov
2012-02-06 16:29 ` [PATCH 1/6] oom: Make find_lock_task_mm() sparse-aware Anton Vorontsov
2012-02-06 16:35 ` Greg KH
2012-02-06 18:59 ` Anton Vorontsov
2012-02-06 19:18 ` Greg KH
2012-02-06 21:27 ` KOSAKI Motohiro
2012-02-07 4:48 ` [PATCH v2 " Anton Vorontsov
2012-02-07 5:17 ` KOSAKI Motohiro
2012-02-08 15:27 ` Oleg Nesterov
2012-02-09 16:45 ` [PATCH] sched: Turn lock_task_sighand() into a static inline Anton Vorontsov
2012-02-11 23:10 ` [tip:sched/core] " tip-bot for Anton Vorontsov
2012-02-15 13:52 ` Peter Zijlstra
2012-02-06 16:29 ` [PATCH 2/6] oom: Get rid of sparse warnings Anton Vorontsov
2012-02-06 21:33 ` KOSAKI Motohiro
2012-02-07 4:20 ` [PATCH v2 " Anton Vorontsov
2012-02-07 5:38 ` KOSAKI Motohiro
2012-02-07 6:23 ` Anton Vorontsov
2012-02-08 18:13 ` KOSAKI Motohiro
2012-02-06 16:29 ` [PATCH 3/6] staging: android/lowmemorykiller: Don't grab tasklist_lock Anton Vorontsov
2012-02-06 16:36 ` Greg KH
2012-02-06 16:42 ` Anton Vorontsov
2012-02-09 0:56 ` Greg KH
2012-02-08 15:32 ` Oleg Nesterov
2012-02-06 16:29 ` [PATCH 4/6] staging: android/lowmemorykiller: Better mm handling Anton Vorontsov
2012-02-06 21:36 ` KOSAKI Motohiro
2012-02-08 15:34 ` Oleg Nesterov
2012-02-06 16:29 ` Anton Vorontsov [this message]
2012-02-06 21:38 ` [PATCH 5/6] staging: android/lowmemorykiller: No need for task->signal check KOSAKI Motohiro
2012-02-08 15:35 ` Oleg Nesterov
2012-02-06 16:30 ` [PATCH 6/6] staging: android/lowmemorykiller: Do not kill kernel threads Anton Vorontsov
2012-02-06 21:38 ` KOSAKI Motohiro
2012-02-08 15:36 ` Oleg Nesterov
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