[PATCH v2] mm/memcg: mem_cgroup_resize_xxx_limit can guarantee memcg->res.limit <= memcg->memsw.limit

[PATCH v2] mm/memcg: mem_cgroup_resize_xxx_limit can guarantee memcg->res.limit <= memcg->memsw.limit

[Wanpeng Li]

From: Wanpeng Li <liwp@linux.vnet.ibm.com>

Changlog:

V2:
* correct title 

Signed-off-by: Wanpeng Li <liwp.linux@gmail.com>
---
 mm/memcontrol.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 4b64fe0..a501660 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3418,7 +3418,7 @@ static int mem_cgroup_resize_limit(struct mem_cgroup *memcg,
 		/*
 		 * Rather than hide all in some function, I do this in
 		 * open coded manner. You see what this really does.
-		 * We have to guarantee memcg->res.limit < memcg->memsw.limit.
+		 * We have to guarantee memcg->res.limit <= memcg->memsw.limit.
 		 */
 		mutex_lock(&set_limit_mutex);
 		memswlimit = res_counter_read_u64(&memcg->memsw, RES_LIMIT);
@@ -3479,7 +3479,7 @@ static int mem_cgroup_resize_memsw_limit(struct mem_cgroup *memcg,
 		/*
 		 * Rather than hide all in some function, I do this in
 		 * open coded manner. You see what this really does.
-		 * We have to guarantee memcg->res.limit < memcg->memsw.limit.
+		 * We have to guarantee memcg->res.limit <= memcg->memsw.limit.
 		 */
 		mutex_lock(&set_limit_mutex);
 		memlimit = res_counter_read_u64(&memcg->res, RES_LIMIT);
-- 
1.7.5.4

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Re: [PATCH v2] mm/memcg: mem_cgroup_resize_xxx_limit can guarantee memcg->res.limit <= memcg->memsw.limit

[Johannes Weiner]

On Fri, Jul 06, 2012 at 11:24:15AM +0800, Wanpeng Li wrote:
> From: Wanpeng Li <liwp@linux.vnet.ibm.com>
> 
> Changlog:
> 
> V2:
> * correct title

Would it be possible to collect all these comment fixes you send out
every other day into a single patch?

> Signed-off-by: Wanpeng Li <liwp.linux@gmail.com>
> ---
>  mm/memcontrol.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 4b64fe0..a501660 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -3418,7 +3418,7 @@ static int mem_cgroup_resize_limit(struct mem_cgroup *memcg,
>  		/*
>  		 * Rather than hide all in some function, I do this in
>  		 * open coded manner. You see what this really does.
> -		 * We have to guarantee memcg->res.limit < memcg->memsw.limit.
> +		 * We have to guarantee memcg->res.limit <= memcg->memsw.limit.
>  		 */

It would probably make sense to also remove the first two sentences,
they add nothing of value.

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