dm: backfill abnormal IO support to non-splitting IO submission

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Otherwise, these abnormal IOs would be sent to the DM target
regardless of whether the target advertised support for them.

Factor out __process_abnormal_io() from __split_and_process_non_flush()
so that discards, write same, etc may be conditionally processed.

Fixes: 978e51ba3 ("dm: optimize bio-based NVMe IO submission")
Cc: stable@vger.kernel.org # 4.16
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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This commit is contained in:

Mike Snitzer 2018-03-26 11:49:16 -04:00

parent 880bcce0dc

commit 0519c71e8d

1 changed files with 23 additions and 7 deletions

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drivers/md/dm.c

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