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Sun, 7 Apr 2024 21:11:10 +0800 From: Yunsheng Lin To: , , CC: , , Yunsheng Lin , Andrew Morton , Eric Dumazet , Subject: [PATCH net-next v1 05/12] mm: page_frag: add two inline helper for page_frag API Date: Sun, 7 Apr 2024 21:08:42 +0800 Message-ID: <20240407130850.19625-6-linyunsheng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20240407130850.19625-1-linyunsheng@huawei.com> References: <20240407130850.19625-1-linyunsheng@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggpemm500005.china.huawei.com (7.185.36.74) X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: DEB7F20017 X-Stat-Signature: 4amwssw5sona8skmj54guhtsgy8dgqua X-Rspam-User: X-HE-Tag: 1712495473-633819 X-HE-Meta: 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 7cko4sie wKn4Q1AUv9Ry1DcyhAs/+vXiTOm3eMG2pH3ppojR0fAf7IekIcRDtYFFdkmI6S8sUdqDV125hj3u9+TDn47Y/kXIvMfxPWHgz33t0YFImMwumh5Me9YbSs+7oar4WxeyNmgYx8ZDZMAH0Z5WRF7kU0hobHDP6kT1IiP1e+96k6z7ZUPcviG1/uZ3szud8KWBiE0vk X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Add two inline helpers for page_frag API to avoid calling accessing the field of 'struct page_frag_cache'. Signed-off-by: Yunsheng Lin --- include/linux/page_frag_cache.h | 10 ++++++++++ net/core/skbuff.c | 4 ++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/include/linux/page_frag_cache.h b/include/linux/page_frag_cache.h index 9d5d86b2d3ab..fe5faa80b6c3 100644 --- a/include/linux/page_frag_cache.h +++ b/include/linux/page_frag_cache.h @@ -23,6 +23,16 @@ struct page_frag_cache { bool pfmemalloc; }; +static inline void page_frag_cache_init(struct page_frag_cache *nc) +{ + nc->va = NULL; +} + +static inline bool page_frag_cache_is_pfmemalloc(struct page_frag_cache *nc) +{ + return !!nc->pfmemalloc; +} + void page_frag_cache_drain(struct page_frag_cache *nc); void __page_frag_cache_drain(struct page *page, unsigned int count); void *page_frag_alloc_va(struct page_frag_cache *nc, unsigned int fragsz, diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 2c10ebd133ac..4ad4db7403ba 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -742,12 +742,12 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, unsigned int len, if (in_hardirq() || irqs_disabled()) { nc = this_cpu_ptr(&netdev_alloc_cache); data = page_frag_alloc_va(nc, len, gfp_mask); - pfmemalloc = nc->pfmemalloc; + pfmemalloc = page_frag_cache_is_pfmemalloc(nc); } else { local_bh_disable(); nc = this_cpu_ptr(&napi_alloc_cache.page); data = page_frag_alloc_va(nc, len, gfp_mask); - pfmemalloc = nc->pfmemalloc; + pfmemalloc = page_frag_cache_is_pfmemalloc(nc); local_bh_enable(); } -- 2.33.0