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dm: use fs_dax_get_by_bdev instead of dax_get_by_host

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There is no point in trying to finding the dax device if the DAX flag is
not set on the queue as none of the users of the device mapper exported
block devices could make use of the DAX capability.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Link: https://lore.kernel.org/r/20210826135510.6293-4-hch@lst.de
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Christoph Hellwig 2021-08-26 15:55:04 +02:00 committed by Dan Williams
parent 39b6389a7f
commit dfa584f6f9
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm.c
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@ -650,7 +650,7 @@ static int open_table_device(struct table_device *td, dev_t dev,
}
td->dm_dev.bdev = bdev;
td->dm_dev.dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
td->dm_dev.dax_dev = fs_dax_get_by_bdev(bdev);
return 0;
}