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[SCSI] zfcp: Fix invalid command order
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We should not modify the port status after triggering an ERP action
for the port. It is not guaranteed which status is finally active
when the ERP action is performed. This can lead to situations which
are unwanted and hard to debug in case of a failure.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Swen Schillig authored and James Bottomley committed Jul 30, 2009
1 parent 5381837 commit dfb3cf0
Showing 1 changed file with 4 additions and 3 deletions.
7 changes: 4 additions & 3 deletions drivers/s390/scsi/zfcp_fsf.c
Original file line number Diff line number Diff line change
Expand Up @@ -1731,15 +1731,16 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
zfcp_fsf_access_denied_port(req, port);
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(port, "fscpph2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
/* can't use generic zfcp_erp_modify_port_status because
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
list_for_each_entry(unit, &port->unit_list_head, list)
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&unit->status);
zfcp_erp_port_boxed(port, "fscpph2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;

break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]) {
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