linux-kernel - Re: [RFC][PATCH 6/8] mm: handle_speculative

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Message-ID: <alpine.LFD.2.00.1001051521320.3630@localhost.localdomain>
Date:	Tue, 5 Jan 2010 15:35:27 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Peter Zijlstra <peterz@...radead.org>
cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"minchan.kim@...il.com" <minchan.kim@...il.com>,
	cl@...ux-foundation.org,
	"hugh.dickins" <hugh.dickins@...cali.co.uk>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [RFC][PATCH 6/8] mm: handle_speculative_fault()



On Tue, 5 Jan 2010, Peter Zijlstra wrote:
> 
> While looking at that code, I found the placement of might_sleep() a tad
> confusing, I'd expect that to be in fput() since that is the regular
> entry point (all except AIO, which does crazy things).

I think it's the crazy AIO thing that is one of the reasons for doing it 
in __fput. If it's just in fput() it covers the _normal_ cases better, but 
I doubt that those were the primary worry ;). 

		Linus
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