openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

target: Fix write payload exception handling with ->new_cmd_map 

This patch fixes a bug for fabrics using tfo->new_cmd_map() that
are expect transport_generic_request_failure() to be calling
transport_send_check_condition_and_sense() for both READ and WRITE,
instead of only for READ exceptions.

This was originally observed with a failed WRITE_SAME_16 w/ unmap=0
using tcm_loop.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2011-08-08 19:03:38 -07:00
parent 387e96c052
commit 16ab8e60a0
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/target/target_core_transport.c
View File

@ -2053,8 +2053,14 @@ static void transport_generic_request_failure(
cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
break;
}
if (!sc)
/*
* If a fabric does not define a cmd->se_tfo->new_cmd_map caller,
* make the call to transport_send_check_condition_and_sense()
* directly. Otherwise expect the fabric to make the call to
* transport_send_check_condition_and_sense() after handling
* possible unsoliticied write data payloads.
*/
if (!sc && !cmd->se_tfo->new_cmd_map)
transport_new_cmd_failure(cmd);
else {
ret = transport_send_check_condition_and_sense(cmd,