Currently when PP_FLAG_PAGE_FRAG is set, the caller is not expected to call page_pool_alloc_pages() directly because of the PP_FLAG_PAGE_FRAG checking in __page_pool_put_page(). The patch removes the above checking to enable non-split page support when PP_FLAG_PAGE_FRAG is set. Reviewed-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> --- net/core/page_pool.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/core/page_pool.c b/net/core/page_pool.c index a65bd7972e37..f7e71dcb6a2e 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -315,11 +315,14 @@ struct page *page_pool_alloc_pages(struct page_pool *pool, gfp_t gfp) /* Fast-path: Get a page from cache */ page = __page_pool_get_cached(pool); - if (page) - return page; /* Slow-path: cache empty, do real allocation */ - page = __page_pool_alloc_pages_slow(pool, gfp); + if (!page) + page = __page_pool_alloc_pages_slow(pool, gfp); + + if (likely(page)) + page_pool_set_frag_count(page, 1); + return page; } EXPORT_SYMBOL(page_pool_alloc_pages); @@ -428,8 +431,7 @@ __page_pool_put_page(struct page_pool *pool, struct page *page, unsigned int dma_sync_size, bool allow_direct) { /* It is not the last user for the page frag case */ - if (pool->p.flags & PP_FLAG_PAGE_FRAG && - page_pool_atomic_sub_frag_count_return(page, 1)) + if (page_pool_atomic_sub_frag_count_return(page, 1)) return NULL; /* This allocator is optimized for the XDP mode that uses -- 2.33.0