From: David Howells <dhowells@redhat.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Chris Wedgwood <cw@f00f.org>, David Howells <dhowells@redhat.com>,
axboe@kernel.dk, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 05/18] [PATCH] BLOCK: Don't call block_sync_page() from AFS [try #4]
Date: Tue, 29 Aug 2006 13:25:08 +0100 [thread overview]
Message-ID: <15995.1156854308@warthog.cambridge.redhat.com> (raw)
In-Reply-To: <20060829115737.GB32714@infradead.org>
Christoph Hellwig <hch@infradead.org> wrote:
> AFS never sets a backing_dev_info on it's own and thus uses
> &default_backing_dev_info which sets the unplug_io_fn to
> default_unplug_io_fn. default_unplug_io_fn is a no-op, and thus
> block_sync_page does nothing for AFS.
I'm sure I used to require this for when there was a local cache on disk.
Maybe things have changed, or maybe I'm misremembering.
David
next prev parent reply other threads:[~2006-08-29 12:25 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-25 19:36 [PATCH 00/18] BLOCK: Permit block layer to be disabled [try #4] David Howells
2006-08-25 19:37 ` [PATCH 01/18] [PATCH] BLOCK: Move functions out of buffer code " David Howells
2006-08-25 19:37 ` [PATCH 02/18] [PATCH] BLOCK: Remove duplicate declaration of exit_io_context() " David Howells
2006-08-25 19:37 ` [PATCH 03/18] [PATCH] BLOCK: Stop fallback_migrate_page() from using page_has_buffers() " David Howells
2006-08-25 19:37 ` [PATCH 04/18] [PATCH] BLOCK: Separate the bounce buffering code from the highmem code " David Howells
2006-08-25 20:04 ` Sam Ravnborg
2006-08-25 20:18 ` David Howells
2006-08-28 11:52 ` Arnd Bergmann
2006-08-29 13:47 ` David Howells
2006-08-29 13:59 ` Arnd Bergmann
2006-08-25 19:37 ` [PATCH 05/18] [PATCH] BLOCK: Don't call block_sync_page() from AFS " David Howells
2006-08-27 21:21 ` Chris Wedgwood
2006-08-29 9:00 ` David Howells
2006-08-29 11:57 ` Christoph Hellwig
2006-08-29 12:25 ` David Howells [this message]
2006-08-25 19:37 ` [PATCH 06/18] [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files " David Howells
2006-08-25 20:07 ` Sam Ravnborg
2006-08-25 20:20 ` David Howells
2006-08-25 19:37 ` [PATCH 07/18] [PATCH] BLOCK: Remove dependence on existence of blockdev_superblock " David Howells
2006-08-25 19:37 ` [PATCH 08/18] [PATCH] BLOCK: Dissociate generic_writepages() from mpage stuff " David Howells
2006-08-25 19:37 ` [PATCH 09/18] [PATCH] BLOCK: Move __invalidate_device() to block_dev.c " David Howells
2006-08-25 19:37 ` [PATCH 10/18] [PATCH] BLOCK: Move the loop device ioctl compat stuff to the loop driver " David Howells
2006-08-25 19:37 ` [PATCH 11/18] [PATCH] BLOCK: Move common FS-specific ioctls to linux/fs.h " David Howells
2006-08-25 19:37 ` [PATCH 12/18] [PATCH] BLOCK: Move the ReiserFS device ioctl compat stuff to the ReiserFS driver " David Howells
2006-08-25 19:37 ` [PATCH 13/18] [PATCH] BLOCK: Move the Ext2 device ioctl compat stuff to the Ext2 " David Howells
2006-08-25 19:37 ` [PATCH 14/18] [PATCH] BLOCK: Move the Ext3 device ioctl compat stuff to the Ext3 " David Howells
2006-08-25 19:37 ` [PATCH 15/18] [PATCH] BLOCK: Move the msdos device ioctl compat stuff to the msdos " David Howells
2006-08-25 19:37 ` [PATCH 16/18] [PATCH] BLOCK: Remove no-longer necessary linux/mpage.h inclusions " David Howells
2006-08-25 19:37 ` [PATCH 17/18] [PATCH] BLOCK: Remove no-longer necessary linux/buffer_head.h " David Howells
2006-08-25 19:37 ` [PATCH 18/18] [PATCH] BLOCK: Make it possible to disable the block layer " David Howells
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