netdev - Re: [PATCH v5 1/6] mm: teach mm by current context info to not do I/O during memory allocation

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Message-ID: <CACVXFVPMd11NPXLE=Ttj75ScMGHLvAYcYMjAyCmRvU3KZauqzg@mail.gmail.com>
Date:	Sun, 11 Nov 2012 20:41:20 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	linux-kernel@...r.kernel.org
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Oliver Neukum <oneukum@...e.de>,
	Minchan Kim <minchan@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Jens Axboe <axboe@...nel.dk>,
	"David S. Miller" <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	netdev@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-mm@...ck.org,
	Ming Lei <ming.lei@...onical.com>,
	Jiri Kosina <jiri.kosina@...e.com>, Mel Gorman <mel@....ul.ie>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v5 1/6] mm: teach mm by current context info to not do I/O
 during memory allocation

On Sun, Nov 11, 2012 at 8:34 PM, Ming Lei <ming.lei@...onical.com> wrote:
> +/* GFP_NOIO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags */
> +static inline gfp_t memalloc_noio_flags(gfp_t flags)
> +{
> +       if (unlikely(current->flags & PF_MEMALLOC_NOIO))
> +               flags &= ~GFP_NOIO;
> +       return flags;

Sorry, the above is wrong, and GFP_IO should be cleared, and I will
resend this one.


Thanks,
--
Ming Lei
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