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From: Chris Mason <mason@suse.com>
To: Marcelo Tosatti <marcelo@conectiva.com.br>,
	Linus Torvalds <torvalds@transmeta.com>
Cc: Rik van Riel <riel@conectiva.com.br>,
	linux-mm@kvack.org, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Avoid !__GFP_IO allocations to eat from memory reservations
Date: Fri, 15 Jun 2001 11:07:09 -0400	[thread overview]
Message-ID: <651290000.992617629@tiny> (raw)
In-Reply-To: <20010614142822Z131175-12594+95@kanga.kvack.org>



On Thursday, June 14, 2001 09:59:43 AM -0300 Marcelo Tosatti
<marcelo@conectiva.com.br> wrote:

> 
> In pre3, GFP_BUFFER allocations can eat from the "emergency" memory
> reservations in case try_to_free_pages() fails for those allocations in
> __alloc_pages(). 
> 
> 
> Here goes the (tested) patch to fix that: 

I started testing this because I expected problems under load with reiserfs
on it.  No deadlocks yet though...I owe Marcelo a beer ;-)

-chris


WARNING: multiple messages have this Message-ID (diff)
From: Chris Mason <mason@suse.com>
To: Marcelo Tosatti <marcelo@conectiva.com.br>,
	Linus Torvalds <torvalds@transmeta.com>
Cc: Rik van Riel <riel@conectiva.com.br>,
	linux-mm@kvack.org, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Avoid !__GFP_IO allocations to eat from memory reservations
Date: Fri, 15 Jun 2001 11:07:09 -0400	[thread overview]
Message-ID: <651290000.992617629@tiny> (raw)
In-Reply-To: <20010614142822Z131175-12594+95@kanga.kvack.org>


On Thursday, June 14, 2001 09:59:43 AM -0300 Marcelo Tosatti
<marcelo@conectiva.com.br> wrote:

> 
> In pre3, GFP_BUFFER allocations can eat from the "emergency" memory
> reservations in case try_to_free_pages() fails for those allocations in
> __alloc_pages(). 
> 
> 
> Here goes the (tested) patch to fix that: 

I started testing this because I expected problems under load with reiserfs
on it.  No deadlocks yet though...I owe Marcelo a beer ;-)

-chris

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  reply	other threads:[~2001-06-15 15:07 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-14 12:59 [PATCH] Avoid !__GFP_IO allocations to eat from memory reservations Marcelo Tosatti
2001-06-15 15:07 ` Chris Mason [this message]
2001-06-15 15:07   ` Chris Mason
  -- strict thread matches above, loose matches on Subject: below --
2001-06-21  2:13 Marcelo Tosatti
2001-06-21  2:13 ` Marcelo Tosatti
2001-06-14 12:59 Marcelo Tosatti
2001-06-14 17:17 ` Daniel Phillips
2001-06-14 17:17   ` Daniel Phillips

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