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From: Luiz Capitulino <lcapitulino@redhat.com>
To: Anton Vorontsov <anton@enomsg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Minchan Kim <minchan@kernel.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org, mhocko@suse.cz,
	kmpark@infradead.org, hyunhee.kim@samsung.com
Subject: Re: [PATCH v2] vmpressure: implement strict mode
Date: Fri, 28 Jun 2013 14:45:07 -0400	[thread overview]
Message-ID: <20130628144507.37d28ed9@redhat.com> (raw)
In-Reply-To: <20130628170917.GA12610@teo>

On Fri, 28 Jun 2013 10:09:17 -0700
Anton Vorontsov <anton@enomsg.org> wrote:

> So, I would now argue that the current scheme is perfectly OK and can do
> everything you can do with the "strict" one,

I forgot commenting this bit. This is not true, because I don't want a
low fd to be notified on critical level. The current interface just
can't do that.

However, it *is* possible to make non-strict work on strict if we make
strict default _and_ make reads on memory.pressure_level return
available events. Just do this on app initialization:

for each event in memory.pressure_level; do
	/* register eventfd to be notified on "event" */
done

Then eventfd will always be notified, no matter the event.

  parent reply	other threads:[~2013-06-28 18:45 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-27  3:17 [PATCH v2] vmpressure: implement strict mode Luiz Capitulino
2013-06-27  9:26 ` Michal Hocko
2013-06-27 13:34   ` Luiz Capitulino
2013-06-27 14:59     ` Michal Hocko
2013-06-27 15:53   ` Minchan Kim
2013-06-27 17:42     ` Michal Hocko
2013-06-27 15:44 ` Minchan Kim
2013-06-27 22:02 ` Andrew Morton
2013-06-28  0:02   ` Minchan Kim
2013-06-28  0:34     ` Andrew Morton
2013-06-28  0:58       ` Anton Vorontsov
2013-06-28  1:13         ` Andrew Morton
2013-06-28  4:34           ` Anton Vorontsov
2013-06-28  5:07             ` Anton Vorontsov
2013-06-28 14:00               ` Luiz Capitulino
2013-06-28 16:57                 ` Anton Vorontsov
2013-06-28 17:09                   ` Anton Vorontsov
2013-06-28 18:25                     ` Luiz Capitulino
2013-06-28 18:45                       ` Anton Vorontsov
2013-06-28 18:58                         ` Luiz Capitulino
2013-06-28 18:45                     ` Luiz Capitulino [this message]
2013-06-28 18:55                       ` Anton Vorontsov
2013-06-28 19:44                         ` Luiz Capitulino
2013-06-29  0:56                           ` Anton Vorontsov
2013-07-01  8:22                             ` Hyunhee Kim
2013-07-02  4:32                               ` Anton Vorontsov
2013-07-02  8:29                                 ` Hyunhee Kim
2013-07-02 13:29                             ` Michal Hocko
2013-07-02 14:59                             ` Luiz Capitulino
2013-07-02 17:24                               ` Anton Vorontsov
2013-07-02 18:38                                 ` Luiz Capitulino
2013-06-28  5:24             ` Andrew Morton
2013-06-28 13:43             ` Luiz Capitulino
2013-06-28  9:04           ` Minchan Kim

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