linux-kernel - Re: [RFC][PATCH] lru_add_drain_all() don't use schedule_on_each

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Message-ID: <2f11576a0810290020i362441edkb494b10c10b17401@mail.gmail.com>
Date:	Wed, 29 Oct 2008 16:20:24 +0900
From:	"KOSAKI Motohiro" <kosaki.motohiro@...fujitsu.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"Christoph Lameter" <cl@...ux-foundation.org>,
	heiko.carstens@...ibm.com, npiggin@...e.de,
	linux-kernel@...r.kernel.org, hugh@...itas.com,
	torvalds@...ux-foundation.org, riel@...hat.com,
	lee.schermerhorn@...com, linux-mm@...ck.org
Subject: Re: [RFC][PATCH] lru_add_drain_all() don't use schedule_on_each_cpu()

> I guess we should document our newly discovered schedule_on_each_cpu()
> problems before we forget about it and later rediscover it.

Now, schedule_on_each_cpu() is only used by lru_add_drain_all().
and smp_call_function() is better way for cross call.

So I propose
   1. lru_add_drain_all() use smp_call_function()
   2. remove schedule_on_each_cpu()


Thought?
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