From 35b2e549894b7ef0b6e7f3a70c2ab75b767cfce9 Mon Sep 17 00:00:00 2001 From: Toke Høiland-Jørgensen Date: Mon, 3 Jan 2022 16:08:07 +0100 Subject: page_pool: Add callback to init pages when they are allocated MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a new callback function to page_pool that, if set, will be called every time a new page is allocated. This will be used from bpf_test_run() to initialise the page data with the data provided by userspace when running XDP programs with redirect turned on. Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Alexei Starovoitov Acked-by: John Fastabend Acked-by: Jesper Dangaard Brouer Link: https://lore.kernel.org/bpf/20220103150812.87914-3-toke@redhat.com --- net/core/page_pool.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/core/page_pool.c') diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 1a6978427d6c..f53786f6666d 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -217,6 +217,8 @@ static void page_pool_set_pp_info(struct page_pool *pool, { page->pp = pool; page->pp_magic |= PP_SIGNATURE; + if (pool->p.init_callback) + pool->p.init_callback(page, pool->p.init_arg); } static void page_pool_clear_pp_info(struct page *page) -- cgit v1.2.3