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asml.silence@gmail.com, toke@redhat.com, tariqt@nvidia.com, edumazet@google.com, pabeni@redhat.com, saeedm@nvidia.com, leon@kernel.org, ast@kernel.org, daniel@iogearbox.net, david@redhat.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, horms@kernel.org, linux-rdma@vger.kernel.org, bpf@vger.kernel.org, vishal.moola@gmail.com Subject: [PATCH v2 03/16] page_pool: use netmem alloc/put APIs in __page_pool_alloc_page_order() Date: Wed, 28 May 2025 11:28:58 +0900 Message-Id: <20250528022911.73453-4-byungchul@sk.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20250528022911.73453-1-byungchul@sk.com> References: <20250528022911.73453-1-byungchul@sk.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWRa0hTcRjG/e+cnXO2Wp2m1clCadGFLuaixht0A4P+HwqC6ktROfTUhnPK 5mUTglmLaDVb6oe0FbPrUmOyzBsmNbdKFLNFsspUVorIVHS5tHWd1bcfz/u8z/vAyxDSdjKR UWvzeJ1WqZFRYlI8Nr9qE8pXqFJv3koFu6uWgpoZA9wfbBKCvboBwZfZDzSEvS8ouF0VIcD+ 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zNq3ny0PZNe9MZTzi8r0V2wmD62nSJCMs5K1Fe4kAwDjVsW5/EsEFwCmB1A6C45OCK0sGpkioXdkpZ9Lj+OQuPonkO2F9VimslOTKp5paM2Mw6kdmseFOMUv+yg== 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: Use netmem alloc/put APIs instead of page alloc/put APIs and make it return netmem_ref instead of struct page * in __page_pool_alloc_page_order(). Signed-off-by: Byungchul Park --- net/core/page_pool.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 974f3eef2efa..e101c39d65c7 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -518,29 +518,29 @@ static bool page_pool_dma_map(struct page_pool *pool, netmem_ref netmem, gfp_t g return false; } -static struct page *__page_pool_alloc_page_order(struct page_pool *pool, - gfp_t gfp) +static netmem_ref __page_pool_alloc_page_order(struct page_pool *pool, + gfp_t gfp) { - struct page *page; + netmem_ref netmem; gfp |= __GFP_COMP; - page = alloc_pages_node(pool->p.nid, gfp, pool->p.order); - if (unlikely(!page)) - return NULL; + netmem = alloc_netmems_node(pool->p.nid, gfp, pool->p.order); + if (unlikely(!netmem)) + return 0; - if (pool->dma_map && unlikely(!page_pool_dma_map(pool, page_to_netmem(page), gfp))) { - put_page(page); - return NULL; + if (pool->dma_map && unlikely(!page_pool_dma_map(pool, netmem, gfp))) { + put_netmem(netmem); + return 0; } alloc_stat_inc(pool, slow_high_order); - page_pool_set_pp_info(pool, page_to_netmem(page)); + page_pool_set_pp_info(pool, netmem); /* Track how many pages are held 'in-flight' */ pool->pages_state_hold_cnt++; - trace_page_pool_state_hold(pool, page_to_netmem(page), + trace_page_pool_state_hold(pool, netmem, pool->pages_state_hold_cnt); - return page; + return netmem; } /* slow path */ @@ -555,7 +555,7 @@ static noinline netmem_ref __page_pool_alloc_pages_slow(struct page_pool *pool, /* Don't support bulk alloc for high-order pages */ if (unlikely(pp_order)) - return page_to_netmem(__page_pool_alloc_page_order(pool, gfp)); + return __page_pool_alloc_page_order(pool, gfp); /* Unnecessary as alloc cache is empty, but guarantees zero count */ if (unlikely(pool->alloc.count > 0)) -- 2.17.1