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authorChristof Schmitt <christof.schmitt@de.ibm.com>2010-03-24 16:50:31 +0100
committerJames Bottomley <James.Bottomley@suse.de>2010-04-11 09:49:35 -0500
commita1dbfddd02d2b3e75f8750c68563e1d6eec16260 (patch)
tree130622cc131439bb4883d94ca862b2152109ad6e
parent2f2eb58762b4dcddfe25c90800323765c1257eca (diff)
[SCSI] zfcp: Pass return code from fc_block_scsi_eh to scsi eh
The return code FAST_IO_FAIL from fc_block_scsi_eh indicates that the pending I/O requests have been terminated as a result of the fast_io_fail_tmo. Pass this return code back to the scsi eh to stop the scsi eh in this case. Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 174b6d57d576..d13eb9a6408a 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -175,7 +175,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
struct zfcp_fsf_req *old_req, *abrt_req;
unsigned long flags;
unsigned long old_reqid = (unsigned long) scpnt->host_scribble;
- int retval = SUCCESS;
+ int retval = SUCCESS, ret;
int retry = 3;
char *dbf_tag;
@@ -200,7 +200,9 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
break;
zfcp_erp_wait(adapter);
- fc_block_scsi_eh(scpnt);
+ ret = fc_block_scsi_eh(scpnt);
+ if (ret)
+ return ret;
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_dbf_scsi_abort("nres", adapter->dbf, scpnt, NULL,
@@ -231,7 +233,7 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
struct zfcp_unit *unit = scpnt->device->hostdata;
struct zfcp_adapter *adapter = unit->port->adapter;
struct zfcp_fsf_req *fsf_req = NULL;
- int retval = SUCCESS;
+ int retval = SUCCESS, ret;
int retry = 3;
while (retry--) {
@@ -240,7 +242,10 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
break;
zfcp_erp_wait(adapter);
- fc_block_scsi_eh(scpnt);
+ ret = fc_block_scsi_eh(scpnt);
+ if (ret)
+ return ret;
+
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_dbf_scsi_devreset("nres", tm_flags, unit, scpnt);
@@ -276,10 +281,13 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
{
struct zfcp_unit *unit = scpnt->device->hostdata;
struct zfcp_adapter *adapter = unit->port->adapter;
+ int ret;
zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt);
zfcp_erp_wait(adapter);
- fc_block_scsi_eh(scpnt);
+ ret = fc_block_scsi_eh(scpnt);
+ if (ret)
+ return ret;
return SUCCESS;
}