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authorShivaram Upadhyayula <shivaram.u@quadstor.com>2013-12-10 16:06:40 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-09 12:25:08 -0800
commitcb38ff921c97c44d8a215cd3a30c0242379abbf6 (patch)
treebf6abb46fc87cc9b7caed5a68e535aa5c7f00983 /drivers/scsi
parent200067a3f3e73eecb457c5bf25fec875cf42d53d (diff)
qla2xxx: Fix schedule_delayed_work() for target timeout calculations
commit 63832aabec12a28a41a221773ab3819d30ba0a67 upstream. This patch fixes two cases in qla_target.c code where the schedule_delayed_work() value was being incorrectly calculated from sess->expires - jiffies. Signed-off-by: Shivaram U <shivaram.u@quadstor.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/qla2xxx/qla_target.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 596480022b0..3bb0a1d1622 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -471,7 +471,7 @@ static void qlt_schedule_sess_for_deletion(struct qla_tgt_sess *sess,
schedule_delayed_work(&tgt->sess_del_work, 0);
else
schedule_delayed_work(&tgt->sess_del_work,
- jiffies - sess->expires);
+ sess->expires - jiffies);
}
/* ha->hardware_lock supposed to be held on entry */
@@ -550,13 +550,14 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
struct scsi_qla_host *vha = tgt->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_sess *sess;
- unsigned long flags;
+ unsigned long flags, elapsed;
spin_lock_irqsave(&ha->hardware_lock, flags);
while (!list_empty(&tgt->del_sess_list)) {
sess = list_entry(tgt->del_sess_list.next, typeof(*sess),
del_list_entry);
- if (time_after_eq(jiffies, sess->expires)) {
+ elapsed = jiffies;
+ if (time_after_eq(elapsed, sess->expires)) {
qlt_undelete_sess(sess);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
@@ -566,7 +567,7 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
ha->tgt.tgt_ops->put_sess(sess);
} else {
schedule_delayed_work(&tgt->sess_del_work,
- jiffies - sess->expires);
+ sess->expires - elapsed);
break;
}
}