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From: Jan Kara <jack@suse.cz>
To: Dan Williams <dan.j.williams@intel.com>
Cc: jack@suse.cz, kbuild test robot <lkp@intel.com>,
	linux-nvdimm@lists.01.org, david@fromorbit.com,
	linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
	Jan Kara <jack@suse.com>,
	linux-fsdevel@vger.kernel.org, hch@lst.de
Subject: Re: [PATCH v7 06/14] ext2, dax: introduce ext2_dax_aops
Date: Thu, 29 Mar 2018 17:44:55 +0200	[thread overview]
Message-ID: <20180329154455.rq4dcvtplgciv3xm@quack2.suse.cz> (raw)
In-Reply-To: <152167306296.5268.6656046711107190095.stgit@dwillia2-desk3.amr.corp.intel.com>

On Wed 21-03-18 15:57:43, Dan Williams wrote:
> In preparation for the dax implementation to start associating dax pages
> to inodes via page->mapping, we need to provide a 'struct
> address_space_operations' instance for dax. Otherwise, direct-I/O
> triggers incorrect page cache assumptions and warnings.
> 
> Cc: Jan Kara <jack@suse.com>
> Reported-by: kbuild test robot <lkp@intel.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Thanks for the cleanup in the patch when setting inode ops. The patch looks
good except the same comment applies as for ext4 - please provide
ext2_dax_direct_IO() which will just bail and use it in ext2_dax_aops.

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR
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  reply	other threads:[~2018-03-29 15:38 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-21 22:57 [PATCH v7 00/14] dax: fix dma vs truncate/hole-punch Dan Williams
2018-03-21 22:57 ` [PATCH v7 01/14] dax: store pfns in the radix Dan Williams
2018-03-21 22:57 ` [PATCH v7 02/14] fs, dax: prepare for dax-specific address_space_operations Dan Williams
2018-03-29 15:28   ` Jan Kara
2018-03-21 22:57 ` [PATCH v7 03/14] block, dax: remove dead code in blkdev_writepages() Dan Williams
2018-03-29 15:29   ` Jan Kara
2018-03-21 22:57 ` [PATCH v7 04/14] xfs, dax: introduce xfs_dax_aops Dan Williams
2018-03-29 15:30   ` Jan Kara
2018-03-21 22:57 ` [PATCH v7 05/14] ext4, dax: introduce ext4_dax_aops Dan Williams
2018-03-29 15:40   ` Jan Kara
2018-03-29 18:09     ` Christoph Hellwig
2018-03-29 22:47       ` Dan Williams
2018-03-21 22:57 ` [PATCH v7 06/14] ext2, dax: introduce ext2_dax_aops Dan Williams
2018-03-29 15:44   ` Jan Kara [this message]
2018-03-21 22:57 ` [PATCH v7 07/14] fs, dax: use page->mapping to warn if truncate collides with a busy page Dan Williams
2018-03-29 16:02   ` Jan Kara
2018-03-29 19:02     ` Dan Williams
2018-03-29 23:02     ` Dan Williams
2018-03-30  8:22       ` Jan Kara
2018-03-21 22:57 ` [PATCH v7 08/14] mm, dax: enable filesystems to trigger dev_pagemap ->page_free callbacks Dan Williams
2018-03-29 16:36   ` Jan Kara
2018-03-21 22:57 ` [PATCH v7 09/14] mm, dev_pagemap: introduce CONFIG_DEV_PAGEMAP_OPS Dan Williams
2018-03-22  7:49   ` Christoph Hellwig
2018-03-30 10:37   ` Jan Kara
2018-03-21 22:58 ` [PATCH v7 10/14] memremap: mark devm_memremap_pages() EXPORT_SYMBOL_GPL Dan Williams
2018-03-22  7:51   ` Christoph Hellwig
2018-03-21 22:58 ` [PATCH v7 11/14] mm, fs, dax: handle layout changes to pinned dax mappings Dan Williams
2018-03-21 22:58 ` [PATCH v7 12/14] xfs: prepare xfs_break_layouts() to be called with XFS_MMAPLOCK_EXCL Dan Williams
2018-03-22  7:25   ` Christoph Hellwig
2018-03-30 15:16   ` Darrick J. Wong
2018-03-21 22:58 ` [PATCH v7 13/14] xfs: prepare xfs_break_layouts() for another layout type Dan Williams
2018-03-22  7:27   ` Christoph Hellwig
2018-03-22 15:50     ` Dan Williams
2018-03-21 22:58 ` [PATCH v7 14/14] xfs, dax: introduce xfs_break_dax_layouts() Dan Williams
2018-03-22  7:43   ` Christoph Hellwig
2018-03-22 16:28     ` Dan Williams
2018-03-22 17:02       ` Christoph Hellwig

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