From: Andrew Morton <akpm@osdl.org>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [oom]: [1/4] add __GFP_WIRED to pinned allocations
Date: Wed, 23 Jun 2004 15:36:31 -0700 [thread overview]
Message-ID: <20040623153631.419f7474.akpm@osdl.org> (raw)
In-Reply-To: <20040623222221.GE1552@holomorphy.com>
William Lee Irwin III <wli@holomorphy.com> wrote:
>
> Also, I should mention this concept is based on code seen in RHEL3,
What kernel is that?
> which uses a __GFP_WIRED flag, albeit for a different purpose (it
> appears to be centered around removing dirty ramfs pagecache from
> the LRU lists(s) as opposed to accounting for OOM-related reasons).
yes, putting ramfs, ramdisk and sysfs pages on the LRU is a bit silly.
However I think that taking a peek into mapping->backing_dev_info in
add_to_page_cache_lru(), __grab_cache_page() and wherever else would be a
tidier way of doing it.
next prev parent reply other threads:[~2004-06-23 22:41 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-23 21:07 [oom]: [0/4] fix OOM deadlock running OAST William Lee Irwin III
2004-06-23 21:07 ` [oom]: [1/4] add __GFP_WIRED to pinned allocations William Lee Irwin III
2004-06-23 21:07 ` [oom]: [2/4] add nr_wired to page_state William Lee Irwin III
2004-06-23 21:07 ` [oom]: [3/4] track wired pages on a per-zone basis William Lee Irwin III
2004-06-23 21:07 ` [oom]: [4/4] check __GFP_WIRED in out_of_memory() William Lee Irwin III
2004-06-23 21:29 ` [oom]: [3/4] track wired pages on a per-zone basis William Lee Irwin III
2004-06-23 22:15 ` Andrew Morton
2004-06-23 22:28 ` William Lee Irwin III
2004-06-23 22:05 ` [oom]: [1/4] add __GFP_WIRED to pinned allocations Andrew Morton
2004-06-23 22:22 ` William Lee Irwin III
2004-06-23 22:36 ` Andrew Morton [this message]
2004-06-23 22:16 ` [oom]: [0/4] fix OOM deadlock running OAST Andrew Morton
2004-06-23 22:31 ` William Lee Irwin III
2004-06-23 22:37 ` Andrew Morton
2004-06-23 23:07 ` William Lee Irwin III
2004-06-23 23:38 ` Andrew Morton
2004-06-24 0:03 ` William Lee Irwin III
2004-06-24 0:18 ` Andrew Morton
2004-06-24 0:26 ` William Lee Irwin III
2004-06-24 0:32 ` William Lee Irwin III
2004-06-24 1:07 ` Andrew Morton
2004-06-24 1:24 ` William Lee Irwin III
2004-06-24 1:52 ` William Lee Irwin III
2004-06-24 2:01 ` Andrew Morton
2004-06-24 2:15 ` William Lee Irwin III
2004-06-24 14:16 ` Marcelo Tosatti
2004-06-24 15:18 ` William Lee Irwin III
2004-06-24 15:19 ` William Lee Irwin III
2004-06-24 15:23 ` William Lee Irwin III
2004-06-24 16:55 ` Marcelo Tosatti
2004-06-25 15:18 ` Rik van Riel
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