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fs: dlm: ast do WARN_ON_ONCE() on hotpath
This patch changes the ast hotpath functionality in very unlikely cases that we do WARN_ON_ONCE() instead of WARN_ON() to not spamming the console output if we run into states that it would occur over and over again. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
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parent
9267c85769
commit
740bb8fc10
2 changed files with 7 additions and 7 deletions
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@ -161,12 +161,12 @@ void dlm_add_cb(struct dlm_lkb *lkb, uint32_t flags, int mode, int status,
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spin_unlock(&ls->ls_cb_lock);
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break;
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case DLM_ENQUEUE_CALLBACK_FAILURE:
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WARN_ON(1);
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WARN_ON_ONCE(1);
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break;
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case DLM_ENQUEUE_CALLBACK_SUCCESS:
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break;
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default:
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WARN_ON(1);
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WARN_ON_ONCE(1);
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break;
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}
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spin_unlock(&lkb->lkb_cb_lock);
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@ -185,7 +185,7 @@ void dlm_callback_work(struct work_struct *work)
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rv = dlm_dequeue_lkb_callback(lkb, &cb);
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spin_unlock(&lkb->lkb_cb_lock);
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if (WARN_ON(rv == DLM_DEQUEUE_CALLBACK_EMPTY))
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if (WARN_ON_ONCE(rv == DLM_DEQUEUE_CALLBACK_EMPTY))
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goto out;
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for (;;) {
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@ -214,7 +214,7 @@ void dlm_user_add_ast(struct dlm_lkb *lkb, uint32_t flags, int mode,
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switch (rv) {
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case DLM_ENQUEUE_CALLBACK_FAILURE:
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spin_unlock(&proc->asts_spin);
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WARN_ON(1);
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WARN_ON_ONCE(1);
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goto out;
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case DLM_ENQUEUE_CALLBACK_NEED_SCHED:
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kref_get(&lkb->lkb_ref);
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@ -224,7 +224,7 @@ void dlm_user_add_ast(struct dlm_lkb *lkb, uint32_t flags, int mode,
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case DLM_ENQUEUE_CALLBACK_SUCCESS:
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break;
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default:
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WARN_ON(1);
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WARN_ON_ONCE(1);
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break;
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}
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spin_unlock(&proc->asts_spin);
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@ -880,7 +880,7 @@ static ssize_t device_read(struct file *file, char __user *buf, size_t count,
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spin_unlock(&proc->asts_spin);
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/* removes ref for proc->asts, may cause lkb to be freed */
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dlm_put_lkb(lkb);
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WARN_ON(1);
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WARN_ON_ONCE(1);
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goto try_another;
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case DLM_DEQUEUE_CALLBACK_LAST:
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list_del_init(&lkb->lkb_cb_list);
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@ -890,7 +890,7 @@ static ssize_t device_read(struct file *file, char __user *buf, size_t count,
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case DLM_DEQUEUE_CALLBACK_SUCCESS:
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break;
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default:
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WARN_ON(1);
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WARN_ON_ONCE(1);
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break;
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}
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spin_unlock(&proc->asts_spin);
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