* [PATCH -next] cgroup: remove set but not used variable 'cgrp'
@ 2019-04-24 8:06 ` Yue Haibing
0 siblings, 0 replies; 2+ messages in thread
From: Yue Haibing @ 2019-04-24 8:06 UTC (permalink / raw)
To: tj, hannes, lizefan; +Cc: linux-kernel, cgroups, YueHaibing
From: YueHaibing <yuehaibing@huawei.com>
Fixes gcc '-Wunused-but-set-variable' warning:
kernel/cgroup/cgroup.c: In function 'cgroup_post_fork':
kernel/cgroup/cgroup.c:5946:19: warning: variable 'cgrp' set but not used [-Wunused-but-set-variable]
It is never used since introduction in
commit 76f969e8948d ("cgroup: cgroup v2 freezer")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
kernel/cgroup/cgroup.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 6f09f9b..c9f208d 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5943,11 +5943,8 @@ void cgroup_post_fork(struct task_struct *child)
* the task into the frozen state.
*/
if (unlikely(cgroup_task_freeze(child))) {
- struct cgroup *cgrp;
-
spin_lock(&child->sighand->siglock);
WARN_ON_ONCE(child->frozen);
- cgrp = cset->dfl_cgrp;
child->jobctl |= JOBCTL_TRAP_FREEZE;
spin_unlock(&child->sighand->siglock);
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH -next] cgroup: remove set but not used variable 'cgrp'
@ 2019-04-24 8:06 ` Yue Haibing
0 siblings, 0 replies; 2+ messages in thread
From: Yue Haibing @ 2019-04-24 8:06 UTC (permalink / raw)
To: tj, hannes, lizefan; +Cc: linux-kernel, cgroups, YueHaibing
From: YueHaibing <yuehaibing@huawei.com>
Fixes gcc '-Wunused-but-set-variable' warning:
kernel/cgroup/cgroup.c: In function 'cgroup_post_fork':
kernel/cgroup/cgroup.c:5946:19: warning: variable 'cgrp' set but not used [-Wunused-but-set-variable]
It is never used since introduction in
commit 76f969e8948d ("cgroup: cgroup v2 freezer")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
kernel/cgroup/cgroup.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 6f09f9b..c9f208d 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5943,11 +5943,8 @@ void cgroup_post_fork(struct task_struct *child)
* the task into the frozen state.
*/
if (unlikely(cgroup_task_freeze(child))) {
- struct cgroup *cgrp;
-
spin_lock(&child->sighand->siglock);
WARN_ON_ONCE(child->frozen);
- cgrp = cset->dfl_cgrp;
child->jobctl |= JOBCTL_TRAP_FREEZE;
spin_unlock(&child->sighand->siglock);
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
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2019-04-24 8:06 ` Yue Haibing
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