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Home » Mailing list archives » linux-kernel » 2008 » May » 6

Re: [-mm][PATCH 4/5] core of reclaim throttle

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From: Rik van Riel <riel@...>
To: KOSAKI Motohiro <kosaki.motohiro@...>
Cc: LKML <linux-kernel@...>, linux-mm <linux-mm@...>, Andrew Morton <akpm@...>
Subject: Re: [-mm][PATCH 4/5] core of reclaim throttle
Date: Monday, May 5, 2008 - 8:43 pm

On Tue, 6 May 2008 07:23:18 +0900
"KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com> wrote:


This is fine.

The problem is adding a code path that causes non __GFP_IO tasks to
wait on __GFP_IO tasks.  Then you can have a deadlock.
 

I believe not all non __GFP_IO or non __GFP_FS calls are recursive
reclaim, but there are some other code paths too.  For example from
fs/buffer.c

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Messages in current thread:
[-mm][PATCH 0/5] mm: page reclaim throttle v6, KOSAKI Motohiro, (Sun May 4, 8:53 am)
Re: [-mm][PATCH 0/5] mm: page reclaim throttle v6, KOSAKI Motohiro, (Sun May 4, 10:38 am)
[-mm][PATCH 5/5] introduce sysctl parameter of max task of t..., KOSAKI Motohiro, (Sun May 4, 9:01 am)
[-mm][PATCH 3/5] change function prototype of shrink_zone(), KOSAKI Motohiro, (Sun May 4, 8:58 am)
Re: [-mm][PATCH 3/5] change function prototype of shrink_zon..., minchan Kim, (Mon May 5, 12:42 am)
Re: [-mm][PATCH 3/5] change function prototype of shrink_zon..., KOSAKI Motohiro, (Mon May 5, 4:31 am)
Re: [-mm][PATCH 3/5] change function prototype of shrink_zon..., minchan Kim, (Mon May 5, 4:37 am)
[-mm][PATCH 4/5] core of reclaim throttle, KOSAKI Motohiro, (Sun May 4, 8:59 am)
Re: [-mm][PATCH 4/5] core of reclaim throttle, KOSAKI Motohiro, (Sun May 4, 9:12 am)
Re: [-mm][PATCH 4/5] core of reclaim throttle, Rik van Riel, (Mon May 5, 5:51 pm)
Re: [-mm][PATCH 4/5] core of reclaim throttle, KOSAKI Motohiro, (Mon May 5, 6:23 pm)
Re: [-mm][PATCH 4/5] core of reclaim throttle, Rik van Riel, (Mon May 5, 8:43 pm)
Re: [-mm][PATCH 4/5] core of reclaim throttle, KOSAKI Motohiro, (Mon May 5, 9:01 pm)
Re: [-mm][PATCH 4/5] core of reclaim throttle, minchan Kim, (Mon May 5, 1:21 am)
Re: [-mm][PATCH 4/5] core of reclaim throttle, KOSAKI Motohiro, (Mon May 5, 4:24 am)
Re: [-mm][PATCH 4/5] core of reclaim throttle, minchan Kim, (Mon May 5, 4:32 am)
[-mm][PATCH 2/5] introduce get_vm_event(), KOSAKI Motohiro, (Sun May 4, 8:57 am)
Re: [-mm][PATCH 2/5] introduce get_vm_event(), Rik van Riel, (Mon May 5, 5:47 pm)
[-mm][PATCH 1/5] fix overflow problem of do_try_to_free_page(), KOSAKI Motohiro, (Sun May 4, 8:55 am)
Re: [-mm][PATCH 1/5] fix overflow problem of do_try_to_free_..., Nishanth Aravamudan, (Mon May 5, 4:12 am)
Re: [-mm][PATCH 1/5] fix overflow problem of do_try_to_free_..., KOSAKI Motohiro, (Mon May 5, 11:29 pm)

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