dax: introduce a fs_dax_get_by_bdev() helper

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Add a helper that can replace the following common pattern:

	if (blk_queue_dax(bdev->bd_queue))
		fs_dax_get_by_host(bdev->bd_disk->disk_name);

This will be used to move dax_device lookup from iomap-operation time to
fs-mount time.

Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

...

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Dan Williams 2017-08-30 09:16:38 -07:00

parent 14ccee78fc

commit 78f3547350

2 changed files with 16 additions and 0 deletions

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10

drivers/dax/super.c

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6

include/linux/dax.h

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