gazelle/0193-check-and-fix-wakeup_list-when-null-appears.patch
kircher f6de817ffb sync eneble TSO and fix TSO mbuf pktlen error
(cherry picked from commit 0fc3494b9c57beb387a3301c0b92c9cef6e454b4)
2023-02-22 16:34:27 +08:00

35 lines
1.2 KiB
Diff

From 9fd7ce8ede4f5fcb730137d2593bfb8f470fad56 Mon Sep 17 00:00:00 2001
From: kircher <majun65@huawei.com>
Date: Tue, 21 Feb 2023 17:08:29 +0800
Subject: [PATCH] check and fix wakeup_list when null appears
---
src/lstack/api/lstack_epoll.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/lstack/api/lstack_epoll.c b/src/lstack/api/lstack_epoll.c
index 7860163..da29590 100644
--- a/src/lstack/api/lstack_epoll.c
+++ b/src/lstack/api/lstack_epoll.c
@@ -84,6 +84,17 @@ void wakeup_stack_epoll(struct protocol_stack *stack, bool wakeup_thread_enable)
struct list_node *node, *temp;
list_for_each_safe(node, temp, &stack->wakeup_list) {
+ /* When temp is NULL, find the tail node in the wekeup_list and connect it to the back of the node */
+ if (unlikely(temp == NULL)) {
+ struct list_node *nod = &stack->wakeup_list;
+ while (nod->prev && nod->prev != node) {
+ nod = nod->prev;
+ }
+ nod->prev = node;
+ node->next = nod;
+ temp = nod;
+ }
+
struct wakeup_poll *wakeup = container_of((node - stack->queue_id), struct wakeup_poll, wakeup_list);
if (!wakeup_thread_enable) {
--
2.33.0