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From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: Zlatko Calusic <zlatko@iskon.hr>
Cc: linux-mm@kvack.org
Subject: Re: [patch] mm-deactivate-fix-1
Date: Sun, 14 Jan 2001 10:57:30 -0200 (BRST)	[thread overview]
Message-ID: <Pine.LNX.4.21.0101141055160.12274-100000@freak.distro.conectiva> (raw)
In-Reply-To: <87ofxaz1y0.fsf@atlas.iskon.hr>

On 14 Jan 2001, Zlatko Calusic wrote:

> I have noticed that in deactivate_page_nolock() function pages get
> unconditionally moved from the active to the inact_dirty list. Even if
> it is really easy with additional check to put them straight to the
> inact_clean list if they're freeable. That keeps the list statistics
> more accurate and in the end should result in a little bit less CPU
> cycles burned (only one list transition, less locking). As a bonus,
> the comment above the function is now correct. :)
> 
> I have tested the patch thoroughly and couldn't find any problems with
> it. It should be really safe as reclaim_page() already carefully
> checks pages before freeing.
> 
> Comments?

We want to move all deactivated pages to the inactive dirty list to get
FIFO behaviour while reclaiming them.



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  reply	other threads:[~2001-01-14 12:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-14 13:40 Zlatko Calusic
2001-01-14 12:57 ` Marcelo Tosatti [this message]
2001-01-14 15:48   ` Zlatko Calusic

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