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From: Badari Pulavarty <pbadari@us.ibm.com>
To: Andrew Morton <akpm@osdl.org>
Cc: cmm@us.ibm.com, linux-kernel@vger.kernel.org,
	ext2-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 1/5] Forking ext4 filesystem from ext3 filesystem
Date: Thu, 10 Aug 2006 11:51:34 -0700	[thread overview]
Message-ID: <44DB8036.5020706@us.ibm.com> (raw)
In-Reply-To: <20060809233914.35ab8792.akpm@osdl.org>

Andrew Morton wrote:
> Also, JBD is presently feeding into submit_bh() buffer_heads which span two
> machine pages, and some device drivers spit the dummy.  It'd be better to
> fix that once, rather than twice..  
>   
Andrew,

I looked at this few days ago. I am not sure how we end up having 
multiple pages (especially,
why we end up having buffers with bh_size > pagesize) ? Do you know why ?

Easiest fix would be to fix submit_bh() to deal with multiple vecs - 
which is vetoed by
Jens and I agree with him :(

Thanks,
Badari


  parent reply	other threads:[~2006-08-10 18:51 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-10  1:17 [PATCH 1/5] Forking ext4 filesystem from ext3 filesystem Mingming Cao
2006-08-10  6:39 ` Andrew Morton
2006-08-10  6:39   ` Andrew Morton
2006-08-10 16:41   ` Mingming Cao
2006-08-10 16:41     ` Mingming Cao
2006-08-10 16:48     ` Jörn Engel
2006-08-10 16:48       ` Jörn Engel
2006-08-10 18:18     ` Andrew Morton
2006-08-10 18:18       ` Andrew Morton
2006-08-10 20:22       ` Jeff Garzik
2006-08-10 20:22         ` Jeff Garzik
2006-08-10 20:33         ` Andrew Morton
2006-08-10 20:33           ` Andrew Morton
2006-08-10 20:52           ` Jeff Garzik
2006-08-10 17:44   ` [Ext2-devel] " Theodore Tso
2006-08-10 17:44     ` Theodore Tso
2006-08-10 18:51   ` Badari Pulavarty [this message]
2006-08-10 19:23     ` Andrew Morton
2006-08-10 19:23       ` Andrew Morton
2006-08-10 19:36       ` [Ext2-devel] " Dave Kleikamp
2006-08-10 19:36         ` Dave Kleikamp
2006-08-10 19:54         ` [Ext2-devel] " Andrew Morton
2006-08-10 19:54           ` Andrew Morton
2006-08-10 20:12       ` Jeff Garzik
2006-08-10 20:12         ` Jeff Garzik
2006-08-10 20:13     ` Jeff Garzik
2006-08-10 20:13       ` Jeff Garzik
2006-08-10 20:27       ` Andrew Morton
2006-08-10 20:27         ` Andrew Morton
2006-08-10 21:00         ` Jeff Garzik
2006-08-10 21:00           ` Jeff Garzik
2006-08-10 21:11           ` [Ext2-devel] " Alex Tomas
2006-08-10 21:11             ` Alex Tomas
2006-08-10 22:18             ` [Ext2-devel] " Andrew Morton

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