From: Konstantin Khlebnikov <khlebnikov@openvz.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 08/13] list: add a new LRU list type
Date: Tue, 23 Aug 2011 13:58:50 +0400 [thread overview]
Message-ID: <4E5379DA.8060109@openvz.org> (raw)
In-Reply-To: <20110823093205.GZ3162@dastard>
Dave Chinner wrote:
> On Tue, Aug 23, 2011 at 05:20:56AM -0400, Christoph Hellwig wrote:
>> On Tue, Aug 23, 2011 at 06:56:21PM +1000, Dave Chinner wrote:
>>> From: Dave Chinner<dchinner@redhat.com>
>>>
>>> Several subsystems use the same construct for LRU lists - a list
>>> head, a spin lock and and item count. They also use exactly the same
>>> code for adding and removing items from the LRU. Create a generic
>>> type for these LRU lists.
>>>
>>> This is the beginning of generic, node aware LRUs for shrinkers to
>>> work with.
>>
>> Why list_lru vs the more natural sounding lru_list?
>
> because the mmzone.h claimed that namespace:
>
> enum lru_list {
> LRU_INACTIVE_ANON = LRU_BASE,
> LRU_ACTIVE_ANON = LRU_BASE + LRU_ACTIVE,
> LRU_INACTIVE_FILE = LRU_BASE + LRU_FILE,
> LRU_ACTIVE_FILE = LRU_BASE + LRU_FILE + LRU_ACTIVE,
> LRU_UNEVICTABLE,
> NR_LRU_LISTS
> };
>
> and it is widely spewed through the mm code. I didn't really feel
> like having to clean that mess up first....
not so widely:
$ git grep -wc 'enum lru_list'
include/linux/memcontrol.h:5
include/linux/mm_inline.h:7
include/linux/mmzone.h:4
include/linux/pagevec.h:1
include/linux/swap.h:2
mm/memcontrol.c:10
mm/page_alloc.c:1
mm/swap.c:6
mm/vmscan.c:6
maybe is better to rename it to enum page_lru_list
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next prev parent reply other threads:[~2011-08-23 9:59 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-23 8:56 [PATCH 00/12] RFC: shrinker APi rework and generic LRU lists Dave Chinner
2011-08-23 8:56 ` [PATCH 01/13] fs: Use a common define for inode slab caches Dave Chinner
2011-08-23 9:13 ` Christoph Hellwig
2011-08-23 9:20 ` Dave Chinner
2011-08-24 6:16 ` Christoph Hellwig
2011-08-23 8:56 ` [PATCH 02/13] dcache: convert dentry_stat.nr_unused to per-cpu counters Dave Chinner
2011-08-23 9:13 ` Christoph Hellwig
2011-08-24 14:12 ` Christoph Lameter
2011-08-23 8:56 ` [PATCH 03/13] dentry: move to per-sb LRU locks Dave Chinner
2011-08-24 6:16 ` Christoph Hellwig
2011-08-23 8:56 ` [PATCH 04/13] mm: new shrinker API Dave Chinner
2011-08-23 9:15 ` Christoph Hellwig
2011-08-23 9:23 ` Dave Chinner
2011-08-24 6:17 ` Christoph Hellwig
2011-08-23 8:56 ` [PATCH 05/13] mm: convert shrinkers to use new API Dave Chinner
2011-08-23 9:17 ` Christoph Hellwig
2011-08-23 9:35 ` Steven Whitehouse
2011-08-26 17:09 ` Wanlong Gao
2011-08-23 8:56 ` [PATCH 06/13] shrinker: remove old API now it is unused Dave Chinner
2011-08-23 8:56 ` [PATCH 07/13] Use atomic-long operations instead of looping around cmpxchg() Dave Chinner
2011-08-23 8:56 ` [PATCH 08/13] list: add a new LRU list type Dave Chinner
2011-08-23 9:20 ` Christoph Hellwig
2011-08-23 9:32 ` Dave Chinner
2011-08-23 9:58 ` Konstantin Khlebnikov [this message]
2011-08-24 14:24 ` Christoph Lameter
2011-08-23 8:56 ` [PATCH 09/13] inode: convert inode lru list to generic lru list code Dave Chinner
2011-08-24 6:38 ` Christoph Hellwig
2011-08-23 8:56 ` [PATCH 10/13] xfs: convert buftarg LRU to generic code Dave Chinner
2011-08-24 6:27 ` Christoph Hellwig
2011-08-23 8:56 ` [PATCH 11/13] dcache: use a dispose list in select_parent Dave Chinner
2011-08-23 9:37 ` Christoph Hellwig
2011-09-05 9:42 ` Christoph Hellwig
2011-08-23 8:56 ` [PATCH 12/13] dcache: remove dentries from LRU before putting on dispose list Dave Chinner
2011-08-23 9:35 ` Christoph Hellwig
2011-08-23 9:57 ` Dave Chinner
2011-08-23 8:56 ` [PATCH 13/13] dcache: convert to use new lru list infrastructure Dave Chinner
2011-08-24 6:32 ` Christoph Hellwig
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