diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/610-v6.3-net-page_pool-use-in_softirq-instead.patch')
-rw-r--r-- | target/linux/generic/backport-5.15/610-v6.3-net-page_pool-use-in_softirq-instead.patch | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/target/linux/generic/backport-5.15/610-v6.3-net-page_pool-use-in_softirq-instead.patch b/target/linux/generic/backport-5.15/610-v6.3-net-page_pool-use-in_softirq-instead.patch deleted file mode 100644 index 71e1140595..0000000000 --- a/target/linux/generic/backport-5.15/610-v6.3-net-page_pool-use-in_softirq-instead.patch +++ /dev/null @@ -1,56 +0,0 @@ -From: Qingfang DENG <qingfang.deng@siflower.com.cn> -Date: Fri, 3 Feb 2023 09:16:11 +0800 -Subject: [PATCH] net: page_pool: use in_softirq() instead - -We use BH context only for synchronization, so we don't care if it's -actually serving softirq or not. - -As a side node, in case of threaded NAPI, in_serving_softirq() will -return false because it's in process context with BH off, making -page_pool_recycle_in_cache() unreachable. - -Signed-off-by: Qingfang DENG <qingfang.deng@siflower.com.cn> ---- - ---- a/include/net/page_pool.h -+++ b/include/net/page_pool.h -@@ -357,7 +357,7 @@ static inline void page_pool_nid_changed - static inline void page_pool_ring_lock(struct page_pool *pool) - __acquires(&pool->ring.producer_lock) - { -- if (in_serving_softirq()) -+ if (in_softirq()) - spin_lock(&pool->ring.producer_lock); - else - spin_lock_bh(&pool->ring.producer_lock); -@@ -366,7 +366,7 @@ static inline void page_pool_ring_lock(s - static inline void page_pool_ring_unlock(struct page_pool *pool) - __releases(&pool->ring.producer_lock) - { -- if (in_serving_softirq()) -+ if (in_softirq()) - spin_unlock(&pool->ring.producer_lock); - else - spin_unlock_bh(&pool->ring.producer_lock); ---- a/net/core/page_pool.c -+++ b/net/core/page_pool.c -@@ -512,8 +512,8 @@ static void page_pool_return_page(struct - static bool page_pool_recycle_in_ring(struct page_pool *pool, struct page *page) - { - int ret; -- /* BH protection not needed if current is serving softirq */ -- if (in_serving_softirq()) -+ /* BH protection not needed if current is softirq */ -+ if (in_softirq()) - ret = ptr_ring_produce(&pool->ring, page); - else - ret = ptr_ring_produce_bh(&pool->ring, page); -@@ -576,7 +576,7 @@ __page_pool_put_page(struct page_pool *p - page_pool_dma_sync_for_device(pool, page, - dma_sync_size); - -- if (allow_direct && in_serving_softirq() && -+ if (allow_direct && in_softirq() && - page_pool_recycle_in_cache(page, pool)) - return NULL; - |