From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: Alex Tomas <alex@clusterfs.com>
Cc: ext4 development <linux-ext4@vger.kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: [RFC] basic delayed allocation in VFS
Date: Thu, 26 Jul 2007 17:17:27 +0530 [thread overview]
Message-ID: <46A889CF.3030101@linux.vnet.ibm.com> (raw)
In-Reply-To: <46A8628D.6070103@clusterfs.com>
Alex Tomas wrote:
> Good day,
>
> please review ...
>
> thanks, Alex
>
>
> basic delayed allocation in VFS:
>
> * block_prepare_write() can be passed special ->get_block() which
> doesn't allocate blocks, but reserve them and mark bh delayed
> * a filesystem can use mpage_da_writepages() with other ->get_block()
> which doesn't defer allocation. mpage_da_writepages() finds all
> non-allocated blocks and try to allocate them with minimal calls
> to ->get_block(), then submit IO using __mpage_writepage()
>
I missed this patch when looking at the ext4 patches. Can we mark related
patch as [ PATCH 1/2 ] so that we know that another patch is going to follow.
-aneesh
prev parent reply other threads:[~2007-07-26 11:47 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-26 8:59 [RFC] basic delayed allocation in VFS Alex Tomas
2007-07-26 10:32 ` Jeff Garzik
2007-07-26 10:35 ` Alex Tomas
2007-07-26 12:05 ` Jeff Garzik
2007-07-26 13:33 ` Alex Tomas
2007-07-27 5:07 ` David Chinner
2007-07-27 7:51 ` Alex Tomas
2007-07-27 12:33 ` Jeff Garzik
2007-07-27 12:42 ` Alex Tomas
2007-07-28 19:56 ` Christoph Hellwig
2007-07-29 9:18 ` David Chinner
2007-07-29 12:09 ` Alex Tomas
2007-07-30 0:29 ` David Chinner
2007-07-27 12:38 ` Alex Tomas
2007-07-28 19:57 ` Christoph Hellwig
2007-07-28 19:53 ` Christoph Hellwig
2007-07-28 19:51 ` Christoph Hellwig
2007-07-28 19:56 ` Alex Tomas
2007-07-29 17:30 ` Andreas Dilger
2007-07-29 17:48 ` Alex Tomas
2007-07-29 19:22 ` Christoph Hellwig
2007-07-29 19:24 ` Christoph Hellwig
2007-07-29 19:51 ` Alex Tomas
2007-07-30 0:28 ` Theodore Tso
2007-07-30 17:49 ` Mingming Cao
2007-07-30 19:43 ` Andrew Morton
2007-07-26 11:47 ` Aneesh Kumar K.V [this message]
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