linux-kernel - Re: [PATCH] vmscan: memcg needs may_swap (Re: [patch] vmscan: rename sc.may_swap to may

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Message-Id: <20090331104625.B1C7.A69D9226@jp.fujitsu.com>
Date:	Tue, 31 Mar 2009 10:48:32 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Minchan Kim <minchan.kim@...il.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Johannes Weiner <hannes@...xchg.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Rik van Riel <riel@...hat.com>,
	Balbir Singh <balbir@...ibm.com>
Subject: Re: [PATCH] vmscan: memcg needs may_swap (Re: [patch] vmscan: rename  sc.may_swap to may_unmap)

> > Sorry for too late response.
> > I don't know memcg well.
> > 
> > The memcg managed to use may_swap well with global page reclaim until now.
> > I think that was because may_swap can represent both meaning.
> > Do we need each variables really ?
> > 
> > How about using union variable ?
> 
> or Just removing one of them  ?

I hope all may_unmap user convert to using may_swap.
may_swap is more efficient and cleaner meaning.



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