From: Christoph Hellwig <hch@infradead.org>
To: cotte@freenet.de
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
schwidefsky@de.ibm.com, akpm@osdl.org
Subject: Re: [RFC/PATCH 4/5] loop: execute in place (V2)
Date: Wed, 18 May 2005 15:28:49 +0100 [thread overview]
Message-ID: <20050518142849.GC23162@infradead.org> (raw)
In-Reply-To: <1116424432.2202.19.camel@cotte.boeblingen.de.ibm.com>
On Wed, May 18, 2005 at 03:53:52PM +0200, Carsten Otte wrote:
> [RFC/PATCH 4/5] loop: execute in place (V2)
> The old loop driver in 2.6.11. used the readpage/writepage aops to
> transfer data. Now loop can also use read/write and direct_IO on the
> file if readpage/writepage are not available. Unlike the old 2.6.11.
> version, today's loop driver does work with files that do not have
> readpage/writepage. Threrefore, this patch is optional.
> This patch adds one more transport method to loop that uses the new
> address space operation get_xip_page if available.
>
> This patch is unchanged from previous version.
This should be ifdef'ed to avoid bloat for non-XIP builds. Or just be dropped
completely. How much difference does it make over read/write and where does
loop performance matter?
next prev parent reply other threads:[~2005-05-18 14:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1116422644.2202.1.camel@cotte.boeblingen.de.ibm.com>
2005-05-18 13:53 ` [RFC/PATCH 1/5] bdev: execute in place (V2) Carsten Otte
2005-05-18 14:27 ` Christoph Hellwig
2005-05-18 15:36 ` Carsten Otte
2005-05-18 15:37 ` Christoph Hellwig
2005-05-18 13:53 ` [RFC/PATCH 2/5] mm/fs: " Carsten Otte
2005-05-18 14:27 ` Christoph Hellwig
2005-05-18 14:56 ` Carsten Otte
2005-05-18 15:00 ` Christoph Hellwig
2005-05-18 15:31 ` Carsten Otte
2005-05-18 15:36 ` Christoph Hellwig
2005-05-18 15:50 ` Carsten Otte
2005-05-18 15:53 ` Christoph Hellwig
2005-05-18 13:53 ` [RFC/PATCH 3/5] ext2: " Carsten Otte
2005-05-18 13:53 ` [RFC/PATCH 4/5] loop: " Carsten Otte
2005-05-18 14:28 ` Christoph Hellwig [this message]
2005-05-18 14:38 ` Carsten Otte
2005-05-18 13:54 ` [RFC/PATCH 5/5] madvice/fadvice: " Carsten Otte
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