From: "Rimaher Molanski" <rimaherm@hotmail.com>
To: linux-kernel@vger.kernel.org
Subject: releasing page cached pages in 2.4.20
Date: Sun, 09 May 2004 20:55:02 +0000 [thread overview]
Message-ID: <BAY1-F96fdH8hOY0luQ0000a23c@hotmail.com> (raw)
Hi,
I'm conducting a small analysis of cache algorithms, and have run into
problems trying to implement cache eviction in 2.4.20 kernel. I call
try_to_release_page (with GFP_NOIO flag) on pages that aren't referenced by
anything other than page cache and sometimes also the buffer cache. I
sometimes do this call from inside the scheduler tq (a task_schedule
function), if this is relevant.
Anyway, in certain scenarios I get deadlocked on the text.lock.buffer lock,
and I have no idea which locks I must obtain (or any other prerequisites)
before I can safely call try_to_release_page. Can anyone help on the
requirements? Also, is there a simpler function I could call to get the job
done?
Thanks,
Rimaher.
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reply other threads:[~2004-05-09 20:55 UTC|newest]
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