linux-ext4 - Re: [PATCH] ext4: optimize ext4_end

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Message-ID: <20130408213844.GC25878@quack.suse.cz>
Date:	Mon, 8 Apr 2013 23:38:44 +0200
From:	Jan Kara <jack@...e.cz>
To:	Theodore Ts'o <tytso@....edu>
Cc:	Jan Kara <jack@...e.cz>, Dmitry Monakhov <dmonakhov@...nvz.org>,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: optimize ext4_end_io memory usage

On Mon 08-04-13 13:10:52, Ted Tso wrote:
> On Fri, Apr 05, 2013 at 11:35:14AM +0200, Jan Kara wrote:
> > On Mon 01-04-13 09:17:48, Dmitry Monakhov wrote:
> > > ext4_end_io->pages array has is used only for buffered writes and usless
> > > in case of DIO. This patch allow us to save 1K for each DIO request.
> >   I have actually a more complete solution to this in my patch queue -
> > there isn't any need to reference pages from io_end after my patches.
> > Hopefully I'll be able to send things out later today...
> 
> Hi Jan,
> 
> Did you have a chance to send out your patches?
  Not on Friday but the patch bomb has landed just now (finally I was able
to sort out all the failures in dioread_nolock mode). I'd just note that
my version of Dmitry's patch is patch 1/29.

								Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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