From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Sat, 14 Feb 2015 02:05:31 +0000 (+0000)
Subject: target: Set LBPWS10 bit in Logical Block Provisioning EVPD
X-Git-Tag: firefly_0821_release~176^2~2250^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aa04dae454d087376d97f44710c4422df030a8f2;p=firefly-linux-kernel-4.4.55.git

target: Set LBPWS10 bit in Logical Block Provisioning EVPD

This patch sets the missing LBPWS10 bit within spc_emulate_evpd_b2()
in order to signal WRITE_SAME (10) w/ UNMAP support, following the
existing LBPWS bit to signal WRITE_SAME (16) w/ UNMAP support.

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

diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 1307600fe726..f041f936a6cd 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -650,7 +650,7 @@ spc_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf)
 	 * support the use of the WRITE SAME (16) command to unmap LBAs.
 	 */
 	if (dev->dev_attrib.emulate_tpws != 0)
-		buf[5] |= 0x40;
+		buf[5] |= 0x40 | 0x20;
 
 	return 0;
 }