From: Christoph Lameter <cl@linux.com>
To: Jiang Liu <jiang.liu@huawei.com>
Cc: Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
Mel Gorman <mgorman@suse.de>, Yinghai Lu <yinghai@kernel.org>,
Tony Luck <tony.luck@intel.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
David Rientjes <rientjes@google.com>,
Minchan Kim <minchan@kernel.org>,
Keping Chen <chenkeping@huawei.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Jiang Liu <liuj97@gmail.com>
Subject: Re: [RFC PATCH 2/4] mm: make consistent use of PG_slab flag
Date: Thu, 5 Jul 2012 09:47:14 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1207050945310.4984@router.home> (raw)
In-Reply-To: <1341287837-7904-2-git-send-email-jiang.liu@huawei.com>
On Tue, 3 Jul 2012, Jiang Liu wrote:
> PG_slabobject: mark whether a (compound) page hosts SLUB/SLOB objects.
Any subsystem may allocate a compound page to store metadata.
The compound pages used by SLOB and SLUB are not managed in any way but
the calls to kfree and kmalloc are converted to calls to the page
allocator. There is no "management" by the slab allocators for these
cases and its inaccurate to say that these are SLUB/SLOB objects since the
allocators never deal with these objects.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Lameter <cl@linux.com>
To: Jiang Liu <jiang.liu@huawei.com>
Cc: Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
Mel Gorman <mgorman@suse.de>, Yinghai Lu <yinghai@kernel.org>,
Tony Luck <tony.luck@intel.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
David Rientjes <rientjes@google.com>,
Minchan Kim <minchan@kernel.org>,
Keping Chen <chenkeping@huawei.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Jiang Liu <liuj97@gmail.com>
Subject: Re: [RFC PATCH 2/4] mm: make consistent use of PG_slab flag
Date: Thu, 5 Jul 2012 09:47:14 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1207050945310.4984@router.home> (raw)
In-Reply-To: <1341287837-7904-2-git-send-email-jiang.liu@huawei.com>
On Tue, 3 Jul 2012, Jiang Liu wrote:
> PG_slabobject: mark whether a (compound) page hosts SLUB/SLOB objects.
Any subsystem may allocate a compound page to store metadata.
The compound pages used by SLOB and SLUB are not managed in any way but
the calls to kfree and kmalloc are converted to calls to the page
allocator. There is no "management" by the slab allocators for these
cases and its inaccurate to say that these are SLUB/SLOB objects since the
allocators never deal with these objects.
--
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next prev parent reply other threads:[~2012-07-05 14:47 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 3:57 [RFC PATCH 1/4] mm: introduce a safer interface to check whether a page is managed by SLxB Jiang Liu
2012-07-03 3:57 ` Jiang Liu
2012-07-03 3:57 ` [RFC PATCH 2/4] mm: make consistent use of PG_slab flag Jiang Liu
2012-07-03 3:57 ` Jiang Liu
2012-07-05 14:47 ` Christoph Lameter [this message]
2012-07-05 14:47 ` Christoph Lameter
2012-07-05 16:15 ` Jiang Liu
2012-07-05 16:15 ` Jiang Liu
2012-07-05 17:37 ` Christoph Lameter
2012-07-05 17:37 ` Christoph Lameter
2012-07-06 8:30 ` Jiang Liu
2012-07-06 8:30 ` Jiang Liu
2012-07-06 13:53 ` Christoph Lameter
2012-07-06 13:53 ` Christoph Lameter
2012-07-03 3:57 ` [RFC PATCH 3/4] SLAB: minor code cleanup Jiang Liu
2012-07-03 3:57 ` Jiang Liu
2012-07-03 10:02 ` Cong Wang
2012-07-03 3:57 ` [RFC PATCH 4/4] mm: change slob's struct page definition to accomodate struct page changes Jiang Liu
2012-07-03 3:57 ` Jiang Liu
2012-07-03 10:22 ` Cong Wang
2012-07-03 9:56 ` [RFC PATCH 1/4] mm: introduce a safer interface to check whether a page is managed by SLxB Cong Wang
2012-07-05 14:45 ` Christoph Lameter
2012-07-05 14:45 ` Christoph Lameter
2012-07-05 15:55 ` Jiang Liu
2012-07-05 15:55 ` Jiang Liu
2012-07-05 17:36 ` Christoph Lameter
2012-07-05 17:36 ` Christoph Lameter
2012-07-06 7:29 ` Jiang Liu
2012-07-06 7:29 ` Jiang Liu
2012-07-06 13:50 ` Christoph Lameter
2012-07-06 13:50 ` Christoph Lameter
2012-07-06 15:36 ` Jiang Liu
2012-07-06 15:36 ` Jiang Liu
2012-09-04 9:18 ` Wen Congyang
2012-09-04 9:18 ` Wen Congyang
2012-09-04 12:13 ` Jiang Liu
2012-09-04 12:13 ` Jiang Liu
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