From: Damien Le Moal <[email protected]> The REQ_OP_ZONE_RESET bio has no payload and zero sectors. Its position is the only information used to indicate the zone to reset on the device. Due to its zero length, this bio is not cloned and sent to the target through the non-flush case in __split_and_process_bio(). Add an additional case in that function to call __split_and_process_non_flush() without checking the clone info size.
Signed-off-by: Damien Le Moal <[email protected]> --- drivers/md/dm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index dfb7597..1d98035 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1318,6 +1318,10 @@ static void __split_and_process_bio(struct mapped_device *md, ci.sector_count = 0; error = __send_empty_flush(&ci); /* dec_pending submits any data associated with flush */ + } else if (bio_op(bio) == REQ_OP_ZONE_RESET) { + ci.bio = bio; + ci.sector_count = 0; + error = __split_and_process_non_flush(&ci); } else { ci.bio = bio; ci.sector_count = bio_sectors(bio); -- 2.9.3 Western Digital Corporation (and its subsidiaries) E-mail Confidentiality Notice & Disclaimer: This e-mail and any files transmitted with it may contain confidential or legally privileged information of WDC and/or its affiliates, and are intended solely for the use of the individual or entity to which they are addressed. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited. If you have received this e-mail in error, please notify the sender immediately and delete the e-mail in its entirety from your system. -- dm-devel mailing list [email protected] https://www.redhat.com/mailman/listinfo/dm-devel
