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Re: arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]]
- To: "Stephen C. Tweedie" <sct@redhat.com>
- Subject: Re: arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]]
- From: Andrea Arcangeli <andrea@e-mind.com>
- Date: Sat, 9 Jan 1999 03:34:56 +0100 (CET)
- cc: Linus Torvalds <torvalds@transmeta.com>, "Eric W. Biederman" <ebiederm+eric@ccr.net>, Zlatko Calusic <Zlatko.Calusic@CARNet.hr>, Alan Cox <alan@lxorguk.ukuu.org.uk>, bredelin@ucsd.edu, linux-kernel@vger.rutgers.edu, Rik van Riel <H.H.vanRiel@phys.uu.nl>, linux-mm@kvack.org
- In-Reply-To: <199901090213.CAA05306@dax.scot.redhat.com>
- Sender: owner-linux-mm@kvack.org
Hi Stephen!
On Sat, 9 Jan 1999, Stephen C. Tweedie wrote:
> deadlock. The easiest way I can see of achieving something like this is
> to set current->flags |= PF_MEMALLOC while we hold the superblock lock,
Hmm, we must not avoid shrink_mmap() to run. So I see plain wrong to set
the PF_MEMALLOC before call __get_free_pages(). Very cleaner to use
GFP_ATOMIC to achieve the same effect btw ;).
Now I am too tired to follow the other part of your email (I'll read
tomorrow, now it's time to sleep for me... ;).
Forget to tell, did you have comments about the FreeAfter() stuff? It made
sense to me (looking at page_io if I remeber well) but I have not
carefully reread it yet after Linus's comments on it.
Andrea Arcangeli
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