target/iblock: Add checks for backend DIF emulation



Make sure that IBLOCK only attempts to use backend DIF emulation
when it's actually enabled at device level.

Cc: Martin Petersen <martin.petersen@oracle.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

parent ee920469

drivers/target/target_core_iblock.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -774,7 +774,7 @@ iblock_execute_rw(struct se_cmd cmd, struct scatterlist sgl, u32 sgl_nents,
	sg_num--;		sg_num--;
	}		}

	if (cmd->prot_type) {		if (cmd->prot_type && dev->dev_attrib.pi_prot_type) {
	int rc = iblock_alloc_bip(cmd, bio_start);		int rc = iblock_alloc_bip(cmd, bio_start);
	if (rc)		if (rc)
	goto fail_put_bios;		goto fail_put_bios;