fs/block_dev.c: skip rw_page if bdev has integrity
authorVishal Verma <vishal.l.verma@intel.com>
Tue, 12 May 2015 17:48:53 +0000 (13:48 -0400)
committerDan Williams <dan.j.williams@intel.com>
Fri, 26 Jun 2015 15:23:38 +0000 (11:23 -0400)
commitf68eb1e71a92765ffd8eb68466a41b48f2fbba04
tree536fa54745479c3a4b3987b3180b60c9bbc50521
parentbc30196f715ed3a94d050ef8bc465e567a6050be
fs/block_dev.c: skip rw_page if bdev has integrity

If a block device has bio integrity enabled, rw_page will bypass the
integrity payload, which is undesirable. Skip rw_page if this is the
case.

Currently brd and zram provide rw_page, and the proposed 'nd' drivers
will too.

Cc: Jens Axboe <axboe@fb.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Suggested-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
fs/block_dev.c