[PATCH 4.9 26/60] target: Use correct SCSI status during EXTENDED_COPY exception

From: Greg Kroah-Hartman
Date: Mon Feb 13 2017 - 08:19:59 EST

4.9-stable review patch. If anyone has any objections, please let me know.


From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>

commit 0583c261e6325f392c1f7a1b9112e31298e1a4bd upstream.

This patch adds the missing target_complete_cmd() SCSI status
parameter change in target_xcopy_do_work(), that was originally
missing in commit 926317de33.

It correctly propigates up the correct SCSI status during
EXTENDED_COPY exception cases, instead of always using the
hardcoded SAM_STAT_CHECK_CONDITION from original code.

This is required for ESX host environments that expect to
hit SAM_STAT_RESERVATION_CONFLICT for certain scenarios,
and SAM_STAT_CHECK_CONDITION results in non-retriable
status for these cases.

Reported-by: Nixon Vincent <nixon.vincent@xxxxxxxxxxxxxx>
Tested-by: Nixon Vincent <nixon.vincent@xxxxxxxxxxxxxx>
Cc: Nixon Vincent <nixon.vincent@xxxxxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/target/target_core_xcopy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -836,7 +836,7 @@ out:
" CHECK_CONDITION -> sending response\n", rc);
ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
- target_complete_cmd(ec_cmd, SAM_STAT_CHECK_CONDITION);
+ target_complete_cmd(ec_cmd, ec_cmd->scsi_status);

sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)