From: "Darrick J. Wong" <djwong@kernel.org>
To: Christoph Hellwig <hch@lst.de>
Cc: nvdimm@lists.linux.dev, Mike Snitzer <snitzer@redhat.com>,
linux-s390@vger.kernel.org, linux-erofs@lists.ozlabs.org,
virtualization@lists.linux-foundation.org,
linux-xfs@vger.kernel.org, dm-devel@redhat.com,
linux-fsdevel@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
linux-ext4@vger.kernel.org, Ira Weiny <ira.weiny@intel.com>
Subject: Re: [PATCH 24/29] xfs: use xfs_direct_write_iomap_ops for DAX zeroing
Date: Tue, 23 Nov 2021 15:02:22 -0800 [thread overview]
Message-ID: <20211123230222.GS266024@magnolia> (raw)
In-Reply-To: <20211109083309.584081-25-hch@lst.de>
On Tue, Nov 09, 2021 at 09:33:04AM +0100, Christoph Hellwig wrote:
> While the buffered write iomap ops do work due to the fact that zeroing
> never allocates blocks, the DAX zeroing should use the direct ops just
> like actual DAX I/O.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Heh. I've wanted to fix this for a long time, but I like your
surrounding cleanups better than anything I had time to work on. :)
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
--D
> ---
> fs/xfs/xfs_iomap.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
> index 8cef3b68cba78..704292c6ce0c7 100644
> --- a/fs/xfs/xfs_iomap.c
> +++ b/fs/xfs/xfs_iomap.c
> @@ -1324,7 +1324,7 @@ xfs_zero_range(
>
> if (IS_DAX(inode))
> return dax_zero_range(inode, pos, len, did_zero,
> - &xfs_buffered_write_iomap_ops);
> + &xfs_direct_write_iomap_ops);
> return iomap_zero_range(inode, pos, len, did_zero,
> &xfs_buffered_write_iomap_ops);
> }
> @@ -1339,7 +1339,7 @@ xfs_truncate_page(
>
> if (IS_DAX(inode))
> return dax_truncate_page(inode, pos, did_zero,
> - &xfs_buffered_write_iomap_ops);
> + &xfs_direct_write_iomap_ops);
> return iomap_truncate_page(inode, pos, did_zero,
> &xfs_buffered_write_iomap_ops);
> }
> --
> 2.30.2
>
next prev parent reply other threads:[~2021-11-23 23:02 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-09 8:32 decouple DAX from block devices Christoph Hellwig
2021-11-09 8:32 ` [PATCH 01/29] nvdimm/pmem: move dax_attribute_group from dax to pmem Christoph Hellwig
2021-11-17 17:44 ` Dan Williams
2021-11-19 6:56 ` Christoph Hellwig
2021-11-19 17:21 ` Dan Williams
2021-11-09 8:32 ` [PATCH 02/29] dm: make the DAX support dependend on CONFIG_FS_DAX Christoph Hellwig
2021-11-17 17:23 ` Dan Williams
2021-11-19 6:54 ` Christoph Hellwig
2021-11-23 2:54 ` Dan Williams
2021-11-23 5:56 ` Christoph Hellwig
2021-11-09 8:32 ` [PATCH 03/29] dax: remove CONFIG_DAX_DRIVER Christoph Hellwig
2021-11-17 17:43 ` Dan Williams
2021-11-23 2:54 ` Dan Williams
2021-11-09 8:32 ` [PATCH 04/29] dax: simplify the dax_device <-> gendisk association Christoph Hellwig
2021-11-23 3:33 ` Dan Williams
2021-11-23 5:57 ` Christoph Hellwig
2021-11-23 19:33 ` Dan Williams
2021-11-09 8:32 ` [PATCH 05/29] dax: remove the pgmap sanity checks in generic_fsdax_supported Christoph Hellwig
2021-11-23 3:35 ` Dan Williams
2021-11-09 8:32 ` [PATCH 06/29] dax: move the partition alignment check into fs_dax_get_by_bdev Christoph Hellwig
2021-11-23 3:41 ` Dan Williams
2021-11-23 22:25 ` Darrick J. Wong
2021-11-24 6:36 ` Christoph Hellwig
2021-11-09 8:32 ` [PATCH 07/29] xfs: factor out a xfs_setup_dax_always helper Christoph Hellwig
2021-11-17 17:31 ` Darrick J. Wong
2021-11-23 3:51 ` Dan Williams
2021-11-09 8:32 ` [PATCH 08/29] dax: remove dax_capable Christoph Hellwig
2021-11-23 3:58 ` Dan Williams
2021-11-23 22:31 ` Darrick J. Wong
2021-11-24 6:37 ` Christoph Hellwig
2021-11-09 8:32 ` [PATCH 09/29] dm-linear: add a linear_dax_pgoff helper Christoph Hellwig
2021-11-23 3:59 ` Dan Williams
2021-11-09 8:32 ` [PATCH 10/29] dm-log-writes: add a log_writes_dax_pgoff helper Christoph Hellwig
2021-11-23 4:02 ` Dan Williams
2021-11-09 8:32 ` [PATCH 11/29] dm-stripe: add a stripe_dax_pgoff helper Christoph Hellwig
2021-11-23 4:16 ` Dan Williams
2021-11-09 8:32 ` [PATCH 12/29] fsdax: remove a pointless __force cast in copy_cow_page_dax Christoph Hellwig
2021-11-23 4:17 ` Dan Williams
2021-11-23 22:33 ` Darrick J. Wong
2021-11-09 8:32 ` [PATCH 13/29] fsdax: use a saner calling convention for copy_cow_page_dax Christoph Hellwig
2021-11-23 19:35 ` Dan Williams
2021-11-23 22:33 ` Darrick J. Wong
2021-11-09 8:32 ` [PATCH 14/29] fsdax: simplify the pgoff calculation Christoph Hellwig
2021-11-23 19:44 ` Dan Williams
2021-11-23 22:36 ` Darrick J. Wong
2021-11-24 6:39 ` Christoph Hellwig
2021-11-09 8:32 ` [PATCH 15/29] xfs: add xfs_zero_range and xfs_truncate_page helpers Christoph Hellwig
2021-11-23 21:15 ` Dan Williams
2021-11-23 22:37 ` Darrick J. Wong
2021-11-09 8:32 ` [PATCH 16/29] fsdax: simplify the offset check in dax_iomap_zero Christoph Hellwig
2021-11-23 21:16 ` Dan Williams
2021-11-23 22:40 ` Darrick J. Wong
2021-11-09 8:32 ` [PATCH 17/29] fsdax: factor out a dax_memzero helper Christoph Hellwig
2021-11-23 21:22 ` Dan Williams
2021-11-23 22:44 ` Darrick J. Wong
2021-11-24 6:47 ` Christoph Hellwig
2021-11-09 8:32 ` [PATCH 18/29] fsdax: decouple zeroing from the iomap buffered I/O code Christoph Hellwig
2021-11-23 21:46 ` Dan Williams
2021-11-24 6:50 ` Christoph Hellwig
2021-11-23 22:53 ` Darrick J. Wong
2021-11-24 6:52 ` Christoph Hellwig
2021-11-09 8:32 ` [PATCH 19/29] ext2: cleanup the dax handling in ext2_fill_super Christoph Hellwig
2021-11-23 21:48 ` Dan Williams
2021-11-23 22:54 ` Darrick J. Wong
2021-11-09 8:33 ` [PATCH 20/29] ext4: cleanup the dax handling in ext4_fill_super Christoph Hellwig
2021-11-23 21:49 ` Dan Williams
2021-11-23 22:54 ` Darrick J. Wong
2021-11-24 6:53 ` Christoph Hellwig
2021-11-09 8:33 ` [PATCH 21/29] xfs: move dax device handling into xfs_{alloc, free}_buftarg Christoph Hellwig
2021-11-23 22:55 ` [PATCH 21/29] xfs: move dax device handling into xfs_{alloc,free}_buftarg Darrick J. Wong
2021-11-24 2:40 ` [PATCH 21/29] xfs: move dax device handling into xfs_{alloc, free}_buftarg Dan Williams
2021-11-24 3:05 ` [PATCH 21/29] xfs: move dax device handling into xfs_{alloc,free}_buftarg Darrick J. Wong
2021-11-24 6:55 ` Christoph Hellwig
2021-11-09 8:33 ` [PATCH 22/29] iomap: add a IOMAP_DAX flag Christoph Hellwig
2021-11-23 23:00 ` Darrick J. Wong
2021-11-24 2:47 ` Dan Williams
2021-11-24 7:10 ` Christoph Hellwig
2021-11-09 8:33 ` [PATCH 23/29] xfs: use IOMAP_DAX to check for DAX mappings Christoph Hellwig
2021-11-23 23:01 ` Darrick J. Wong
2021-11-24 7:14 ` Christoph Hellwig
2021-11-24 2:49 ` Dan Williams
2021-11-09 8:33 ` [PATCH 24/29] xfs: use xfs_direct_write_iomap_ops for DAX zeroing Christoph Hellwig
2021-11-23 23:02 ` Darrick J. Wong [this message]
2021-11-24 2:52 ` Dan Williams
2021-11-09 8:33 ` [PATCH 25/29] dax: return the partition offset from fs_dax_get_by_bdev Christoph Hellwig
2021-11-24 2:56 ` Dan Williams
2021-11-24 6:59 ` Christoph Hellwig
2021-11-09 8:33 ` [PATCH 26/29] fsdax: shift partition offset handling into the file systems Christoph Hellwig
2021-11-23 23:11 ` Darrick J. Wong
2021-11-24 3:21 ` Dan Williams
2021-11-24 3:44 ` Gao Xiang
2021-11-09 8:33 ` [PATCH 27/29] dax: fix up some of the block device related ifdefs Christoph Hellwig
2021-11-23 23:13 ` Darrick J. Wong
2021-11-24 3:47 ` Dan Williams
2021-11-09 8:33 ` [PATCH 28/29] iomap: build the block based code conditionally Christoph Hellwig
2021-11-23 23:13 ` Darrick J. Wong
2021-11-24 3:51 ` Dan Williams
2021-11-09 8:33 ` [PATCH 29/29] fsdax: don't require CONFIG_BLOCK Christoph Hellwig
2021-11-23 23:13 ` Darrick J. Wong
2021-11-24 3:52 ` Dan Williams
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