From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: linux-mm@kvack.org, dhillf@gmail.com, rientjes@google.com,
mhocko@suse.cz, akpm@linux-foundation.org, hannes@cmpxchg.org,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org
Subject: Re: [PATCH -V7 07/14] mm/page_cgroup: Make page_cgroup point to the cgroup rather than the mem_cgroup
Date: Fri, 08 Jun 2012 00:35:00 +0530 [thread overview]
Message-ID: <87sje72bab.fsf@skywalker.in.ibm.com> (raw)
In-Reply-To: <4FCD7FBB.1000304@jp.fujitsu.com>
Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> writes:
> You can use other pages than head/tails.
> For example,I think you have 512 pages per 2M pages.
How about the below. This limit the usage to hugetlb cgroup to only
hugepages with more than 3 normal pages. I guess that is an acceptable limitation.
static inline struct hugetlb_cgroup *hugetlb_cgroup_from_page(struct page *page)
{
if (!PageHuge(page))
return NULL;
if (compound_order(page) < 3)
return NULL;
return (struct hugetlb_cgroup *)page[2].lru.next;
}
static inline
int set_hugetlb_cgroup(struct page *page, struct hugetlb_cgroup *h_cg)
{
if (!PageHuge(page))
return -1;
if (compound_order(page) < 3)
return -1;
page[2].lru.next = (void *)h_cg;
return 0;
}
-aneesh
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next prev parent reply other threads:[~2012-06-07 19:05 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 14:38 [PATCH -V7 00/14] hugetlb: Add HugeTLB controller to control HugeTLB allocation Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 01/14] hugetlb: rename max_hstate to hugetlb_max_hstate Aneesh Kumar K.V
2012-05-31 0:48 ` Konrad Rzeszutek Wilk
2012-05-31 5:47 ` Aneesh Kumar K.V
2012-05-31 0:55 ` David Rientjes
2012-05-30 14:38 ` [PATCH -V7 02/14] hugetlbfs: don't use ERR_PTR with VM_FAULT* values Aneesh Kumar K.V
2012-05-31 0:54 ` Konrad Rzeszutek Wilk
2012-05-31 1:02 ` David Rientjes
2012-05-31 5:45 ` Aneesh Kumar K.V
2012-05-31 6:50 ` David Rientjes
2012-05-30 14:38 ` [PATCH -V7 03/14] hugetlbfs: add an inline helper for finding hstate index Aneesh Kumar K.V
2012-05-31 1:05 ` David Rientjes
2012-05-30 14:38 ` [PATCH -V7 04/14] hugetlb: use mmu_gather instead of a temporary linked list for accumulating pages Aneesh Kumar K.V
2012-05-31 1:56 ` David Rientjes
2012-05-31 5:35 ` Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 05/14] hugetlb: avoid taking i_mmap_mutex in unmap_single_vma() for hugetlb Aneesh Kumar K.V
2012-05-31 1:57 ` David Rientjes
2012-05-31 5:25 ` Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 06/14] hugetlb: simplify migrate_huge_page() Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 07/14] mm/page_cgroup: Make page_cgroup point to the cgroup rather than the mem_cgroup Aneesh Kumar K.V
2012-06-05 1:44 ` Kamezawa Hiroyuki
2012-06-05 2:53 ` Aneesh Kumar K.V
2012-06-05 3:40 ` Kamezawa Hiroyuki
2012-06-07 19:05 ` Aneesh Kumar K.V [this message]
2012-05-30 14:38 ` [PATCH -V7 08/14] hugetlbfs: add a list for tracking in-use HugeTLB pages Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 09/14] hugetlbfs: Make some static variables global Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 10/14] hugetlbfs: Add new HugeTLB cgroup Aneesh Kumar K.V
2012-05-31 1:19 ` Konrad Rzeszutek Wilk
2012-05-31 5:43 ` Aneesh Kumar K.V
2012-05-31 9:43 ` Michal Hocko
2012-05-31 14:01 ` Michal Hocko
2012-05-30 14:38 ` [PATCH -V7 11/14] hugetlbfs: add hugetlb cgroup control files Aneesh Kumar K.V
2012-05-31 1:32 ` Konrad Rzeszutek Wilk
2012-05-31 5:39 ` Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 12/14] hugetlb: add charge/uncharge calls for HugeTLB alloc/free Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 13/14] hugetlb: migrate hugetlb cgroup info from oldpage to new page during migration Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 14/14] hugetlb: add HugeTLB controller documentation Aneesh Kumar K.V
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