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From: Andrew Morton <akpm@zip.com.au>
To: Bulent Abali <abali@us.ibm.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] struct page shrinkage
Date: Wed, 06 Mar 2002 09:33:02 -0800	[thread overview]
Message-ID: <3C8652CE.47182A24@zip.com.au> (raw)
In-Reply-To: <OF8A6868F1.312B7C40-ON85256B74.005CB22E@pok.ibm.com>

Bulent Abali wrote:
> 
> >Rik van Riel wrote:
> >>
> >> +               clear_bit(PG_locked, &p->flags);
> >
> >Please don't do this.  Please use the macros.  If they're not
> >there, please create them.
> >
> >Bypassing the abstractions in this manner confounds people
> >who are implementing global locked-page accounting.
> >
> 
> Andrew,
> I have an application which needs to know the total number of locked and
> dirtied pages at any given time.  In which application locked-page
> accounting is done?   I don't see it in base 2.5.5.   Are there any patches
> or such that you can give pointers to?

This is in the ebulliently growing delayed-allocate and
buffer_head-bypass patches at

	http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.6-pre2/

The implementation you're looking for is in dalloc-10-core.patch:
mm.h and mm/page_alloc.c

-

WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@zip.com.au>
To: Bulent Abali <abali@us.ibm.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] struct page shrinkage
Date: Wed, 06 Mar 2002 09:33:02 -0800	[thread overview]
Message-ID: <3C8652CE.47182A24@zip.com.au> (raw)
In-Reply-To: OF8A6868F1.312B7C40-ON85256B74.005CB22E@pok.ibm.com

Bulent Abali wrote:
> 
> >Rik van Riel wrote:
> >>
> >> +               clear_bit(PG_locked, &p->flags);
> >
> >Please don't do this.  Please use the macros.  If they're not
> >there, please create them.
> >
> >Bypassing the abstractions in this manner confounds people
> >who are implementing global locked-page accounting.
> >
> 
> Andrew,
> I have an application which needs to know the total number of locked and
> dirtied pages at any given time.  In which application locked-page
> accounting is done?   I don't see it in base 2.5.5.   Are there any patches
> or such that you can give pointers to?

This is in the ebulliently growing delayed-allocate and
buffer_head-bypass patches at

	http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.6-pre2/

The implementation you're looking for is in dalloc-10-core.patch:
mm.h and mm/page_alloc.c

-
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  reply	other threads:[~2002-03-06 17:35 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-06 16:58 [PATCH] struct page shrinkage Bulent Abali
2002-03-06 16:58 ` Bulent Abali
2002-03-06 17:33 ` Andrew Morton [this message]
2002-03-06 17:33   ` Andrew Morton
2002-03-06 18:09 ` Rik van Riel
2002-03-06 18:09   ` Rik van Riel
  -- strict thread matches above, loose matches on Subject: below --
2002-03-06 18:41 Bulent Abali
2002-03-06 18:41 ` Bulent Abali
2002-03-06 18:50 ` Mike Fedyk
2002-03-06 18:50   ` Mike Fedyk
2002-03-06 19:12   ` Andrew Morton
2002-03-06 19:12     ` Andrew Morton
2002-03-06 19:04 ` Andrew Morton
2002-03-06 19:04   ` Andrew Morton
2002-02-26  1:47 Rik van Riel
2002-02-26  1:47 ` Rik van Riel
2002-02-26  1:49 ` David S. Miller
2002-02-26  1:49   ` David S. Miller
2002-02-26  1:57   ` Rik van Riel
2002-02-26  1:57     ` Rik van Riel
2002-02-26  2:01     ` David S. Miller
2002-02-26  2:01       ` David S. Miller
2002-02-26  2:07       ` Rik van Riel
2002-02-26  2:07         ` Rik van Riel
2002-02-26  2:54       ` William Lee Irwin III
2002-02-26  2:54         ` William Lee Irwin III
2002-02-26  2:16 ` Andrew Morton
2002-02-26  2:16   ` Andrew Morton
2002-02-26  2:46   ` William Lee Irwin III
2002-02-26  2:46     ` William Lee Irwin III

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