dax: export a low-level __dax_zero_page_range helper

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This allows XFS to perform zeroing using the iomap infrastructure and
avoid buffer heads.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christoph Hellwig <hch@lst.de>
[vishal: fix conflicts with dax-error-handling]
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>

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Christoph Hellwig 2016-05-09 10:47:04 +02:00 • committed by Vishal Verma

parent 3dc2916107

commit 679c8bd3b2

2 changed files with 27 additions and 15 deletions

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35

fs/dax.c

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7

include/linux/dax.h

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