dax: Remove pointless writeback from dax_do_io()

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dax_do_io() is calling filemap_write_and_wait() if DIO_LOCKING flags is
set. Presumably this was copied over from direct IO code. However DAX
inodes have no pagecache pages to write so the call is pointless. Remove
it.

Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>

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Jan Kara 2016-05-11 11:58:52 +02:00 • committed by Vishal Verma

parent 069c77bc9e

commit c3d98e39d5

1 changed files with 1 additions and 9 deletions

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fs/dax.c

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