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Re: [PATCH 06/11] memcg: kmem controller infrastructure [message #46939 is a reply to message #46929]

Mon, 25 June 2012 22:28

Glauber Costa
Messages: 916
Registered: October 2011

Senior Member

On 06/25/2012 10:06 PM, Tejun Heo wrote:
> Again, nits.
>
> On Mon, Jun 25, 2012 at 06:15:23PM +0400, Glauber Costa wrote:
>> +#define mem_cgroup_kmem_on 1
>> +bool __mem_cgroup_new_kmem_page(gfp_t gfp, void *handle, int order);
>> +void __mem_cgroup_commit_kmem_page(struct page *page, void *handle, int order);
>> +void __mem_cgroup_free_kmem_page(struct page *page, int order);
>> +#define is_kmem_tracked_alloc (gfp & __GFP_KMEMCG)
>
> Ugh... please do the following instead.
>
> static inline bool is_kmem_tracked_alloc(gfp_t gfp)
> {
> return gfp & __GFP_KMEMCG;
> }
>
>> #else
>> static inline void sock_update_memcg(struct sock *sk)
>> {
>> @@ -416,6 +423,43 @@ static inline void sock_update_memcg(struct sock *sk)
>> static inline void sock_release_memcg(struct sock *sk)
>> {
>> }
>> +
>> +#define mem_cgroup_kmem_on 0
>> +#define __mem_cgroup_new_kmem_page(a, b, c) false
>> +#define __mem_cgroup_free_kmem_page(a,b )
>> +#define __mem_cgroup_commit_kmem_page(a, b, c)
>> +#define is_kmem_tracked_alloc (false)
>
> I would prefer static inlines here too. It's a bit more code in the
> header but leads to less surprises (e.g. arg evals w/ side effects or
> compiler warning about unused vars) and makes it easier to avoid
> cosmetic errors.
>
> Thanks.
>

Sure thing.

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[Message index]

		[PATCH 00/11] kmem controller for memcg: stripped down version By: Glauber Costa on Mon, 25 June 2012 14:15
		[PATCH 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Suleiman Souhlal on Mon, 25 June 2012 23:33
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Tue, 26 June 2012 08:39
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Suleiman Souhlal on Wed, 27 June 2012 16:16
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: David Rientjes on Tue, 26 June 2012 04:09
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Tue, 26 June 2012 07:12
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: David Rientjes on Tue, 26 June 2012 08:54
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Tue, 26 June 2012 09:08
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: David Rientjes on Tue, 26 June 2012 09:17
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Tue, 26 June 2012 09:23
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Wed, 27 June 2012 10:03
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: David Rientjes on Wed, 27 June 2012 19:48
		Re: [PATCH 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Wed, 27 June 2012 20:47
		[PATCH 03/11] memcg: change defines to an enum By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 03/11] memcg: change defines to an enum By: David Rientjes on Tue, 26 June 2012 04:11
		Re: [PATCH 03/11] memcg: change defines to an enum By: Glauber Costa on Tue, 26 June 2012 08:28
		Re: [PATCH 03/11] memcg: change defines to an enum By: David Rientjes on Tue, 26 June 2012 09:01
		[PATCH 01/11] memcg: Make it possible to use the stock for more than one page. By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 01/11] memcg: Make it possible to use the stock for more than one page. By: Tejun Heo on Mon, 25 June 2012 17:44
		Re: [PATCH 01/11] memcg: Make it possible to use the stock for more than one page. By: Glauber Costa on Mon, 25 June 2012 22:29
		Re: [PATCH 01/11] memcg: Make it possible to use the stock for more than one page. By: Tejun Heo on Mon, 25 June 2012 22:33
		Re: [PATCH 01/11] memcg: Make it possible to use the stock for more than one page. By: David Rientjes on Tue, 26 June 2012 04:01
		[PATCH 05/11] Add a __GFP_KMEMCG flag By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 05/11] Add a __GFP_KMEMCG flag By: David Rientjes on Tue, 26 June 2012 04:25
		Re: [PATCH 05/11] Add a __GFP_KMEMCG flag By: Glauber Costa on Tue, 26 June 2012 07:08
		Re: [PATCH 05/11] Add a __GFP_KMEMCG flag By: David Rientjes on Tue, 26 June 2012 09:03
		[PATCH 04/11] kmem slab accounting basic infrastructure By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 04/11] kmem slab accounting basic infrastructure By: David Rientjes on Tue, 26 June 2012 04:22
		Re: [PATCH 04/11] kmem slab accounting basic infrastructure By: Glauber Costa on Tue, 26 June 2012 07:09
		[PATCH 10/11] memcg: allow a memcg with kmem charges to be destructed. By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 10/11] memcg: allow a memcg with kmem charges to be destructed. By: Tejun Heo on Mon, 25 June 2012 18:34
		Re: [PATCH 10/11] memcg: allow a memcg with kmem charges to be destructed. By: Glauber Costa on Mon, 25 June 2012 22:25
		Re: [PATCH 10/11] memcg: allow a memcg with kmem charges to be destructed. By: KAMEZAWA Hiroyuki on Tue, 26 June 2012 05:59
		Re: [PATCH 10/11] memcg: allow a memcg with kmem charges to be destructed. By: Glauber Costa on Tue, 26 June 2012 07:21
		[PATCH 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 07/11] mm: Allocate kernel pages to the right memcg By: Tejun Heo on Mon, 25 June 2012 18:07
		Re: [PATCH 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Mon, 25 June 2012 22:27
		[PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Tejun Heo on Mon, 25 June 2012 18:38
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Frederic Weisbecker on Mon, 25 June 2012 20:57
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Glauber Costa on Tue, 26 June 2012 12:48
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Frederic Weisbecker on Tue, 26 June 2012 13:38
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Glauber Costa on Tue, 26 June 2012 13:37
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Frederic Weisbecker on Tue, 26 June 2012 13:44
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: David Rientjes on Tue, 26 June 2012 04:57
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: KAMEZAWA Hiroyuki on Tue, 26 June 2012 05:35
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Glauber Costa on Tue, 26 June 2012 07:23
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: David Rientjes on Tue, 26 June 2012 08:45
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Glauber Costa on Tue, 26 June 2012 08:44
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: David Rientjes on Tue, 26 June 2012 09:05
		Re: [PATCH 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Frederic Weisbecker on Mon, 25 June 2012 16:55
		[PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Tejun Heo on Mon, 25 June 2012 18:06
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Mon, 25 June 2012 22:28
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: akpm on Mon, 25 June 2012 23:17
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Tue, 26 June 2012 14:40
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Tue, 26 June 2012 15:01
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: akpm on Tue, 26 June 2012 18:01
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Tejun Heo on Tue, 26 June 2012 18:08
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Tue, 26 June 2012 18:14
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: akpm on Tue, 26 June 2012 19:20
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Tue, 26 June 2012 15:29
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: David Rientjes on Tue, 26 June 2012 09:12
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Tue, 26 June 2012 09:17
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: David Rientjes on Wed, 27 June 2012 04:01
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 27 June 2012 09:33
		Re: [PATCH 06/11] memcg: kmem controller infrastructure By: David Rientjes on Wed, 27 June 2012 19:46
		[PATCH 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: Tejun Heo on Mon, 25 June 2012 18:29
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Mon, 25 June 2012 22:36
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: Tejun Heo on Mon, 25 June 2012 22:49
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: akpm on Mon, 25 June 2012 23:21
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: David Rientjes on Tue, 26 June 2012 05:23
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: akpm on Mon, 25 June 2012 23:23
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: David Rientjes on Tue, 26 June 2012 05:24
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: akpm on Tue, 26 June 2012 05:31
		Re: [PATCH 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Tue, 26 June 2012 07:23
		[PATCH 08/11] memcg: disable kmem code when not in use. By: Glauber Costa on Mon, 25 June 2012 14:15
		Re: [PATCH 08/11] memcg: disable kmem code when not in use. By: KAMEZAWA Hiroyuki on Tue, 26 June 2012 05:51
		Re: [PATCH 00/11] kmem controller for memcg: stripped down version By: akpm on Mon, 25 June 2012 23:27
		Re: [PATCH 00/11] kmem controller for memcg: stripped down version By: Glauber Costa on Tue, 26 June 2012 07:17
		Re: [PATCH 00/11] kmem controller for memcg: stripped down version By: akpm on Tue, 26 June 2012 21:55
		Re: [PATCH 00/11] kmem controller for memcg: stripped down version By: David Rientjes on Wed, 27 June 2012 01:08
		Re: [PATCH 00/11] kmem controller for memcg: stripped down version By: Glauber Costa on Wed, 27 June 2012 08:39
		Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down versio By: Glauber Costa on Wed, 27 June 2012 09:29
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Frederic Weisbecker on Wed, 27 June 2012 12:29
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Glauber Costa on Wed, 27 June 2012 12:28
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Frederic Weisbecker on Wed, 27 June 2012 12:35
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: David Rientjes on Wed, 27 June 2012 19:38
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Glauber Costa on Thu, 28 June 2012 09:01
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: akpm on Thu, 28 June 2012 22:25
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Glauber Costa on Tue, 03 July 2012 11:38
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Frederic Weisbecker on Thu, 12 July 2012 15:40
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Glauber Costa on Tue, 07 August 2012 13:59
		Re: Fork bomb limitation in memcg WAS: Re: [PATCH 00/11] kmem controller for memcg: stripped down ve By: Glauber Costa on Wed, 08 August 2012 14:15

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