From: Niu Yawei <niu@whamcloud.com>
Date: Mon, 30 May 2011 06:30:06 +0000 (-0700)
Subject: LU-369 assert(t_watchdog) failed in quota_chk_acq_common()
X-Git-Tag: 2.0.66.0~18
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=d57911ad26ee6ae39738d7ed36898a915290a51f

LU-369 assert(t_watchdog) failed in quota_chk_acq_common()

Remove the incorrect assert(t_watchdog) in quota_chk_acq_common()
and schedule_dqacq(), since they might be called from recovery
thread, which doesn't have t_watchdog attached.

Signed-off-by: Niu Yawei <niu@whamcloud.com>
Change-Id: I22e65c66827811309e43910e9a4d34251aad99c3
Reviewed-on: http://review.whamcloud.com/870
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Johann Lombardi <johann@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/lustre/quota/quota_context.c b/lustre/quota/quota_context.c
index af31518..b1149e0 100644
--- a/lustre/quota/quota_context.c
+++ b/lustre/quota/quota_context.c
@@ -1040,17 +1040,19 @@ schedule_dqacq(struct obd_device *obd, struct lustre_quota_ctxt *qctxt,
                 cfs_spin_lock(&qctxt->lqc_lock);
                 if (wait && !qctxt->lqc_import) {
                         cfs_spin_unlock(&qctxt->lqc_lock);
-
-                        LASSERT(oti && oti->oti_thread &&
-                                oti->oti_thread->t_watchdog);
-
-                        lc_watchdog_disable(oti->oti_thread->t_watchdog);
+                        LASSERT(oti && oti->oti_thread);
+                        /* The recovery thread doesn't have watchdog
+                         * attached. LU-369 */
+                        if (oti->oti_thread->t_watchdog)
+                                lc_watchdog_disable(oti->oti_thread->\
+                                                t_watchdog);
                         CDEBUG(D_QUOTA, "sleep for quota master\n");
                         l_wait_event(qctxt->lqc_wait_for_qmaster,
                                      check_qm(qctxt), &lwi);
                         CDEBUG(D_QUOTA, "wake up when quota master is back\n");
-                        lc_watchdog_touch(oti->oti_thread->t_watchdog,
-                                 CFS_GET_TIMEOUT(oti->oti_thread->t_svc));
+                        if (oti->oti_thread->t_watchdog)
+                                lc_watchdog_touch(oti->oti_thread->t_watchdog,
+                                      CFS_GET_TIMEOUT(oti->oti_thread->t_svc));
                 } else {
                         cfs_spin_unlock(&qctxt->lqc_lock);
                 }
diff --git a/lustre/quota/quota_interface.c b/lustre/quota/quota_interface.c
index 87c14cf..5b3057c 100644
--- a/lustre/quota/quota_interface.c
+++ b/lustre/quota/quota_interface.c
@@ -446,17 +446,19 @@ static int quota_chk_acq_common(struct obd_device *obd, struct obd_export *exp,
                 cfs_spin_lock(&qctxt->lqc_lock);
                 if (!qctxt->lqc_import && oti) {
                         cfs_spin_unlock(&qctxt->lqc_lock);
-
-                        LASSERT(oti && oti->oti_thread &&
-                                oti->oti_thread->t_watchdog);
-
-                        lc_watchdog_disable(oti->oti_thread->t_watchdog);
+                        LASSERT(oti->oti_thread);
+                        /* The recovery thread doesn't have watchdog
+                         * attached. LU-369 */
+                        if (oti->oti_thread->t_watchdog)
+                                lc_watchdog_disable(oti->oti_thread->\
+                                                t_watchdog);
                         CDEBUG(D_QUOTA, "sleep for quota master\n");
                         l_wait_event(qctxt->lqc_wait_for_qmaster, check_qm(qctxt),
                                      &lwi);
                         CDEBUG(D_QUOTA, "wake up when quota master is back\n");
-                        lc_watchdog_touch(oti->oti_thread->t_watchdog,
-                                 CFS_GET_TIMEOUT(oti->oti_thread->t_svc));
+                        if (oti->oti_thread->t_watchdog)
+                                lc_watchdog_touch(oti->oti_thread->t_watchdog,
+                                       CFS_GET_TIMEOUT(oti->oti_thread->t_svc));
                 } else {
                         cfs_spin_unlock(&qctxt->lqc_lock);
                 }