Commit aaeb7bb0 authored by Christoph Hellwig's avatar Christoph Hellwig

nvme: set the PRACT bit when using Write Zeroes with T10 PI

When using Write Zeroes on a namespace that has protection
information enabled they behavior without the PRACT bit
counter-intuitive and will generally lead to validation failures
when reading the written blocks.  Fix this by always setting the
PRACT bit that generates matching PI data on the fly.

Fixes: 6e02318e ("nvme: add support for the Write Zeroes command")
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarKeith Busch <kbusch@kernel.org>
Reviewed-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 234211b8
......@@ -900,6 +900,9 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
cmnd->write_zeroes.length =
cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
if (nvme_ns_has_pi(ns))
cmnd->write_zeroes.control = cpu_to_le16(NVME_RW_PRINFO_PRACT);
else
cmnd->write_zeroes.control = 0;
return BLK_STS_OK;
}
......
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