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From: Minchan Kim <minchan@kernel.org>
To: Luiz Capitulino <lcapitulino@redhat.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, mhocko@suse.cz,
	anton@enomsg.org, akpm@linux-foundation.org,
	kmpark@infradead.org, hyunhee.kim@samsung.com
Subject: Re: [PATCH v2] vmpressure: implement strict mode
Date: Fri, 28 Jun 2013 00:44:23 +0900	[thread overview]
Message-ID: <20130627154423.GB5006@gmail.com> (raw)
In-Reply-To: <20130626231712.4a7392a7@redhat.com>

On Wed, Jun 26, 2013 at 11:17:12PM -0400, Luiz Capitulino wrote:
> Currently, an eventfd is notified for the level it's registered for
> _plus_ higher levels.
> 
> This is a problem if an application wants to implement different
> actions for different levels. For example, an application might want
> to release 10% of its cache on level low, 50% on medium and 100% on
> critical. To do this, an application has to register a different
> eventfd for each pressure level. However, fd low is always going to
> be notified and and all fds are going to be notified on level critical.
> 
> Strict mode solves this problem by strictly notifiying an eventfd
> for the pressure level it registered for. This new mode is optional,
> by default we still notify eventfds on higher levels too.
> 
> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Acked-by: Minchan Kim <minchan@kernel.org>

If you will update this patch without major big change, you can keep
earlier Acked-by and Reviewe-by.

Thanks!

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WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan@kernel.org>
To: Luiz Capitulino <lcapitulino@redhat.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, mhocko@suse.cz,
	anton@enomsg.org, akpm@linux-foundation.org,
	kmpark@infradead.org, hyunhee.kim@samsung.com
Subject: Re: [PATCH v2] vmpressure: implement strict mode
Date: Fri, 28 Jun 2013 00:44:23 +0900	[thread overview]
Message-ID: <20130627154423.GB5006@gmail.com> (raw)
In-Reply-To: <20130626231712.4a7392a7@redhat.com>

On Wed, Jun 26, 2013 at 11:17:12PM -0400, Luiz Capitulino wrote:
> Currently, an eventfd is notified for the level it's registered for
> _plus_ higher levels.
> 
> This is a problem if an application wants to implement different
> actions for different levels. For example, an application might want
> to release 10% of its cache on level low, 50% on medium and 100% on
> critical. To do this, an application has to register a different
> eventfd for each pressure level. However, fd low is always going to
> be notified and and all fds are going to be notified on level critical.
> 
> Strict mode solves this problem by strictly notifiying an eventfd
> for the pressure level it registered for. This new mode is optional,
> by default we still notify eventfds on higher levels too.
> 
> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Acked-by: Minchan Kim <minchan@kernel.org>

If you will update this patch without major big change, you can keep
earlier Acked-by and Reviewe-by.

Thanks!


  parent reply	other threads:[~2013-06-27 15:44 UTC|newest]

Thread overview: 68+ 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  3:17 ` Luiz Capitulino
2013-06-27  9:26 ` Michal Hocko
2013-06-27  9:26   ` Michal Hocko
2013-06-27 13:34   ` Luiz Capitulino
2013-06-27 13:34     ` Luiz Capitulino
2013-06-27 14:59     ` Michal Hocko
2013-06-27 14:59       ` Michal Hocko
2013-06-27 15:53   ` Minchan Kim
2013-06-27 15:53     ` Minchan Kim
2013-06-27 17:42     ` Michal Hocko
2013-06-27 17:42       ` Michal Hocko
2013-06-27 15:44 ` Minchan Kim [this message]
2013-06-27 15:44   ` Minchan Kim
2013-06-27 22:02 ` Andrew Morton
2013-06-27 22:02   ` Andrew Morton
2013-06-28  0:02   ` Minchan Kim
2013-06-28  0:02     ` Minchan Kim
2013-06-28  0:34     ` Andrew Morton
2013-06-28  0:34       ` Andrew Morton
2013-06-28  0:58       ` Anton Vorontsov
2013-06-28  0:58         ` Anton Vorontsov
2013-06-28  1:13         ` Andrew Morton
2013-06-28  1:13           ` Andrew Morton
2013-06-28  4:34           ` Anton Vorontsov
2013-06-28  4:34             ` Anton Vorontsov
2013-06-28  5:07             ` Anton Vorontsov
2013-06-28  5:07               ` Anton Vorontsov
2013-06-28 14:00               ` Luiz Capitulino
2013-06-28 14:00                 ` Luiz Capitulino
2013-06-28 16:57                 ` Anton Vorontsov
2013-06-28 16:57                   ` Anton Vorontsov
2013-06-28 17:09                   ` Anton Vorontsov
2013-06-28 17:09                     ` Anton Vorontsov
2013-06-28 18:25                     ` Luiz Capitulino
2013-06-28 18:25                       ` Luiz Capitulino
2013-06-28 18:45                       ` Anton Vorontsov
2013-06-28 18:45                         ` Anton Vorontsov
2013-06-28 18:58                         ` Luiz Capitulino
2013-06-28 18:58                           ` Luiz Capitulino
2013-06-28 18:45                     ` Luiz Capitulino
2013-06-28 18:45                       ` Luiz Capitulino
2013-06-28 18:55                       ` Anton Vorontsov
2013-06-28 18:55                         ` Anton Vorontsov
2013-06-28 19:44                         ` Luiz Capitulino
2013-06-28 19:44                           ` Luiz Capitulino
2013-06-29  0:56                           ` Anton Vorontsov
2013-06-29  0:56                             ` Anton Vorontsov
2013-07-01  8:22                             ` Hyunhee Kim
2013-07-01  8:22                               ` Hyunhee Kim
2013-07-02  4:32                               ` Anton Vorontsov
2013-07-02  4:32                                 ` Anton Vorontsov
2013-07-02  8:29                                 ` Hyunhee Kim
2013-07-02  8:29                                   ` Hyunhee Kim
2013-07-02 13:29                             ` Michal Hocko
2013-07-02 13:29                               ` Michal Hocko
2013-07-02 14:59                             ` Luiz Capitulino
2013-07-02 14:59                               ` Luiz Capitulino
2013-07-02 17:24                               ` Anton Vorontsov
2013-07-02 17:24                                 ` Anton Vorontsov
2013-07-02 18:38                                 ` Luiz Capitulino
2013-07-02 18:38                                   ` Luiz Capitulino
2013-06-28  5:24             ` Andrew Morton
2013-06-28  5:24               ` Andrew Morton
2013-06-28 13:43             ` Luiz Capitulino
2013-06-28 13:43               ` Luiz Capitulino
2013-06-28  9:04           ` Minchan Kim
2013-06-28  9:04             ` Minchan Kim

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