* [PATCH 0/2] fixups for memcg cgroup_lock conversion
@ 2013-02-11 8:04 Glauber Costa
2013-02-11 8:04 ` [PATCH 1/2] memcg: fast hierarchy-aware child test fix Glauber Costa
2013-02-11 8:04 ` Glauber Costa
0 siblings, 2 replies; 11+ messages in thread
From: Glauber Costa @ 2013-02-11 8:04 UTC (permalink / raw)
To: Andrew Morton
Cc: Tejun Heo, linux-mm, cgroups, Michal Hocko, Johannes Weiner,
kamezawa.hiroyu
Andrew,
Please consider applying the following fixups to two of the patches
in my latest cgroup_lock conversion series. Apparently, there were
some mistake while converting one of the functions,
mem_cgroup_oom_control_write. Smatch found this one due in kbuild
to the lock imbalance when exiting the function.
Names should be already in your fixup format.
Glauber Costa (2):
memcg: fast hierarchy-aware child test fix
memcg: replace cgroup_lock with memcg specific memcg_lock fix
mm/memcontrol.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--
1.8.1.2
--
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 1/2] memcg: fast hierarchy-aware child test fix
2013-02-11 8:04 [PATCH 0/2] fixups for memcg cgroup_lock conversion Glauber Costa
@ 2013-02-11 8:04 ` Glauber Costa
2013-02-11 9:04 ` Michal Hocko
2013-02-13 10:42 ` Kamezawa Hiroyuki
2013-02-11 8:04 ` Glauber Costa
1 sibling, 2 replies; 11+ messages in thread
From: Glauber Costa @ 2013-02-11 8:04 UTC (permalink / raw)
To: Andrew Morton
Cc: Tejun Heo, linux-mm, cgroups, Michal Hocko, Johannes Weiner,
kamezawa.hiroyu
---
mm/memcontrol.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 25ac5f4..28252c9 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5883,8 +5883,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
mutex_lock(&memcg_create_mutex);
/* oom-kill-disable is a flag for subhierarchy. */
- if ((parent->use_hierarchy) ||
- (memcg->use_hierarchy && !list_empty(&cgrp->children))) {
+ if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
cgroup_unlock();
return -EINVAL;
}
--
1.8.1.2
--
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^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH 2/2] memcg: replace cgroup_lock with memcg specific memcg_lock fix
@ 2013-02-11 8:04 ` Glauber Costa
0 siblings, 0 replies; 11+ messages in thread
From: Glauber Costa @ 2013-02-11 8:04 UTC (permalink / raw)
To: Andrew Morton
Cc: Tejun Heo, linux-mm, cgroups, Michal Hocko, Johannes Weiner,
kamezawa.hiroyu, Glauber Costa
Signed-off-by: Glauber Costa <glommer@parallels.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 28252c9..03ebf68 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5884,7 +5884,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
mutex_lock(&memcg_create_mutex);
/* oom-kill-disable is a flag for subhierarchy. */
if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
- cgroup_unlock();
+ mutex_unlock(&memcg_create_mutex);
return -EINVAL;
}
memcg->oom_kill_disable = val;
--
1.8.1.2
--
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^ permalink raw reply related [flat|nested] 11+ messages in thread
* [PATCH 2/2] memcg: replace cgroup_lock with memcg specific memcg_lock fix
@ 2013-02-11 8:04 ` Glauber Costa
0 siblings, 0 replies; 11+ messages in thread
From: Glauber Costa @ 2013-02-11 8:04 UTC (permalink / raw)
To: Andrew Morton
Cc: Tejun Heo, linux-mm-Bw31MaZKKs3YtjvyW6yDsg,
cgroups-u79uwXL29TY76Z2rM5mHXA, Michal Hocko, Johannes Weiner,
kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A, Glauber Costa
Signed-off-by: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Reported-by: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 28252c9..03ebf68 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5884,7 +5884,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
mutex_lock(&memcg_create_mutex);
/* oom-kill-disable is a flag for subhierarchy. */
if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
- cgroup_unlock();
+ mutex_unlock(&memcg_create_mutex);
return -EINVAL;
}
memcg->oom_kill_disable = val;
--
1.8.1.2
^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [PATCH 1/2] memcg: fast hierarchy-aware child test fix
2013-02-11 8:04 ` [PATCH 1/2] memcg: fast hierarchy-aware child test fix Glauber Costa
@ 2013-02-11 9:04 ` Michal Hocko
2013-02-13 10:42 ` Kamezawa Hiroyuki
1 sibling, 0 replies; 11+ messages in thread
From: Michal Hocko @ 2013-02-11 9:04 UTC (permalink / raw)
To: Glauber Costa
Cc: Andrew Morton, Tejun Heo, linux-mm, cgroups, Johannes Weiner,
kamezawa.hiroyu
Acked-by: Michal Hocko <mhocko@suse.cz>
On Mon 11-02-13 12:04:48, Glauber Costa wrote:
> ---
> mm/memcontrol.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 25ac5f4..28252c9 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5883,8 +5883,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
>
> mutex_lock(&memcg_create_mutex);
> /* oom-kill-disable is a flag for subhierarchy. */
> - if ((parent->use_hierarchy) ||
> - (memcg->use_hierarchy && !list_empty(&cgrp->children))) {
> + if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
> cgroup_unlock();
> return -EINVAL;
> }
> --
> 1.8.1.2
>
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
> the body to majordomo@kvack.org. For more info on Linux MM,
> see: http://www.linux-mm.org/ .
> Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
--
Michal Hocko
SUSE Labs
--
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 2/2] memcg: replace cgroup_lock with memcg specific memcg_lock fix
@ 2013-02-11 9:04 ` Michal Hocko
0 siblings, 0 replies; 11+ messages in thread
From: Michal Hocko @ 2013-02-11 9:04 UTC (permalink / raw)
To: Glauber Costa
Cc: Andrew Morton, Tejun Heo, linux-mm, cgroups, Johannes Weiner,
kamezawa.hiroyu
Ouch, I have totally missed this one.
Acked-by: Michal Hocko <mhocko@suse.cz>
On Mon 11-02-13 12:04:49, Glauber Costa wrote:
> Signed-off-by: Glauber Costa <glommer@parallels.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> mm/memcontrol.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 28252c9..03ebf68 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5884,7 +5884,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
> mutex_lock(&memcg_create_mutex);
> /* oom-kill-disable is a flag for subhierarchy. */
> if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
> - cgroup_unlock();
> + mutex_unlock(&memcg_create_mutex);
> return -EINVAL;
> }
> memcg->oom_kill_disable = val;
> --
> 1.8.1.2
>
> --
> To unsubscribe from this list: send the line "unsubscribe cgroups" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Michal Hocko
SUSE Labs
--
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 2/2] memcg: replace cgroup_lock with memcg specific memcg_lock fix
@ 2013-02-11 9:04 ` Michal Hocko
0 siblings, 0 replies; 11+ messages in thread
From: Michal Hocko @ 2013-02-11 9:04 UTC (permalink / raw)
To: Glauber Costa
Cc: Andrew Morton, Tejun Heo, linux-mm-Bw31MaZKKs3YtjvyW6yDsg,
cgroups-u79uwXL29TY76Z2rM5mHXA, Johannes Weiner,
kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A
Ouch, I have totally missed this one.
Acked-by: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>
On Mon 11-02-13 12:04:49, Glauber Costa wrote:
> Signed-off-by: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
> Reported-by: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
> ---
> mm/memcontrol.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 28252c9..03ebf68 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5884,7 +5884,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
> mutex_lock(&memcg_create_mutex);
> /* oom-kill-disable is a flag for subhierarchy. */
> if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
> - cgroup_unlock();
> + mutex_unlock(&memcg_create_mutex);
> return -EINVAL;
> }
> memcg->oom_kill_disable = val;
> --
> 1.8.1.2
>
> --
> To unsubscribe from this list: send the line "unsubscribe cgroups" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Michal Hocko
SUSE Labs
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/2] memcg: fast hierarchy-aware child test fix
@ 2013-02-13 10:42 ` Kamezawa Hiroyuki
0 siblings, 0 replies; 11+ messages in thread
From: Kamezawa Hiroyuki @ 2013-02-13 10:42 UTC (permalink / raw)
To: Glauber Costa
Cc: Andrew Morton, Tejun Heo, linux-mm, cgroups, Michal Hocko,
Johannes Weiner
(2013/02/11 17:04), Glauber Costa wrote:
> ---
> mm/memcontrol.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 25ac5f4..28252c9 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5883,8 +5883,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
>
> mutex_lock(&memcg_create_mutex);
> /* oom-kill-disable is a flag for subhierarchy. */
> - if ((parent->use_hierarchy) ||
> - (memcg->use_hierarchy && !list_empty(&cgrp->children))) {
> + if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
> cgroup_unlock();
> return -EINVAL;
> }
>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
--
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/2] memcg: fast hierarchy-aware child test fix
@ 2013-02-13 10:42 ` Kamezawa Hiroyuki
0 siblings, 0 replies; 11+ messages in thread
From: Kamezawa Hiroyuki @ 2013-02-13 10:42 UTC (permalink / raw)
To: Glauber Costa
Cc: Andrew Morton, Tejun Heo, linux-mm-Bw31MaZKKs3YtjvyW6yDsg,
cgroups-u79uwXL29TY76Z2rM5mHXA, Michal Hocko, Johannes Weiner
(2013/02/11 17:04), Glauber Costa wrote:
> ---
> mm/memcontrol.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 25ac5f4..28252c9 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5883,8 +5883,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
>
> mutex_lock(&memcg_create_mutex);
> /* oom-kill-disable is a flag for subhierarchy. */
> - if ((parent->use_hierarchy) ||
> - (memcg->use_hierarchy && !list_empty(&cgrp->children))) {
> + if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
> cgroup_unlock();
> return -EINVAL;
> }
>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 2/2] memcg: replace cgroup_lock with memcg specific memcg_lock fix
@ 2013-02-13 10:43 ` Kamezawa Hiroyuki
0 siblings, 0 replies; 11+ messages in thread
From: Kamezawa Hiroyuki @ 2013-02-13 10:43 UTC (permalink / raw)
To: Glauber Costa
Cc: Andrew Morton, Tejun Heo, linux-mm, cgroups, Michal Hocko,
Johannes Weiner
(2013/02/11 17:04), Glauber Costa wrote:
> Signed-off-by: Glauber Costa <glommer@parallels.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
I'm sorry I missed this...
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> ---
> mm/memcontrol.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 28252c9..03ebf68 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5884,7 +5884,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
> mutex_lock(&memcg_create_mutex);
> /* oom-kill-disable is a flag for subhierarchy. */
> if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
> - cgroup_unlock();
> + mutex_unlock(&memcg_create_mutex);
> return -EINVAL;
> }
> memcg->oom_kill_disable = val;
>
--
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 2/2] memcg: replace cgroup_lock with memcg specific memcg_lock fix
@ 2013-02-13 10:43 ` Kamezawa Hiroyuki
0 siblings, 0 replies; 11+ messages in thread
From: Kamezawa Hiroyuki @ 2013-02-13 10:43 UTC (permalink / raw)
To: Glauber Costa
Cc: Andrew Morton, Tejun Heo, linux-mm-Bw31MaZKKs3YtjvyW6yDsg,
cgroups-u79uwXL29TY76Z2rM5mHXA, Michal Hocko, Johannes Weiner
(2013/02/11 17:04), Glauber Costa wrote:
> Signed-off-by: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
> Reported-by: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
I'm sorry I missed this...
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
> ---
> mm/memcontrol.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 28252c9..03ebf68 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5884,7 +5884,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
> mutex_lock(&memcg_create_mutex);
> /* oom-kill-disable is a flag for subhierarchy. */
> if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
> - cgroup_unlock();
> + mutex_unlock(&memcg_create_mutex);
> return -EINVAL;
> }
> memcg->oom_kill_disable = val;
>
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2013-02-13 10:43 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-02-11 8:04 [PATCH 0/2] fixups for memcg cgroup_lock conversion Glauber Costa
2013-02-11 8:04 ` [PATCH 1/2] memcg: fast hierarchy-aware child test fix Glauber Costa
2013-02-11 9:04 ` Michal Hocko
2013-02-13 10:42 ` Kamezawa Hiroyuki
2013-02-13 10:42 ` Kamezawa Hiroyuki
2013-02-11 8:04 ` [PATCH 2/2] memcg: replace cgroup_lock with memcg specific memcg_lock fix Glauber Costa
2013-02-11 8:04 ` Glauber Costa
2013-02-11 9:04 ` Michal Hocko
2013-02-11 9:04 ` Michal Hocko
2013-02-13 10:43 ` Kamezawa Hiroyuki
2013-02-13 10:43 ` Kamezawa Hiroyuki
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