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authorMike Christie <michaelc@cs.wisc.edu>2008-01-31 13:36:47 -0600
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-02-07 18:02:35 -0600
commit568d303b5b3f0f6432ae8f56ecdb0beb2341288e (patch)
treee3f2b4220c121e1e6b0a168923a7419cb5010f82 /drivers/scsi/qla4xxx/ql4_os.c
parentbd976f62cd6c6dda1ce57bf3e84447e94844868a (diff)
[SCSI] qla4xxx: fix recovery timer and session unblock race
If qla4xxx is resetting up a session and the recovery timer fires we do not want to just set it to dead, because the dpc thread could have just set it to online and is in the middle of resetting it up. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Cc: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_os.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 437d169a981..d4dd149b466 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -124,16 +124,19 @@ static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session)
struct ddb_entry *ddb_entry = session->dd_data;
struct scsi_qla_host *ha = ddb_entry->ha;
- DEBUG2(printk("scsi%ld: %s: index [%d] port down retry count of (%d) "
- "secs exhausted, marking device DEAD.\n", ha->host_no,
- __func__, ddb_entry->fw_ddb_index,
- ha->port_down_retry_count));
+ if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
+ atomic_set(&ddb_entry->state, DDB_STATE_DEAD);
- atomic_set(&ddb_entry->state, DDB_STATE_DEAD);
+ DEBUG2(printk("scsi%ld: %s: index [%d] port down retry count "
+ "of (%d) secs exhausted, marking device DEAD.\n",
+ ha->host_no, __func__, ddb_entry->fw_ddb_index,
+ ha->port_down_retry_count));
- DEBUG2(printk("scsi%ld: %s: scheduling dpc routine - dpc flags = "
- "0x%lx\n", ha->host_no, __func__, ha->dpc_flags));
- queue_work(ha->dpc_thread, &ha->dpc_work);
+ DEBUG2(printk("scsi%ld: %s: scheduling dpc routine - dpc "
+ "flags = 0x%lx\n",
+ ha->host_no, __func__, ha->dpc_flags));
+ queue_work(ha->dpc_thread, &ha->dpc_work);
+ }
}
static int qla4xxx_host_get_param(struct Scsi_Host *shost,