The check is duplicated in 2 places, factor it out into a common helper.
Signed-off-by: Mina Almasry almasrymina@google.com --- net/core/page_pool.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 8776fcad064a..fe9de4ecce94 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -684,6 +684,11 @@ static bool page_pool_recycle_in_cache(struct page *page, return true; }
+static bool __page_pool_page_can_be_recycled(const struct page *page) +{ + return page_ref_count(page) == 1 && !page_is_pfmemalloc(page); +} + /* If the page refcnt == 1, this will try to recycle the page. * if PP_FLAG_DMA_SYNC_DEV is set, we'll try to sync the DMA area for * the configured size min(dma_sync_size, pool->max_len). @@ -705,7 +710,7 @@ __page_pool_put_page(struct page_pool *pool, struct page *page, * page is NOT reusable when allocated when system is under * some pressure. (page_is_pfmemalloc) */ - if (likely(page_ref_count(page) == 1 && !page_is_pfmemalloc(page))) { + if (likely(__page_pool_page_can_be_recycled(page))) { /* Read barrier done in page_ref_count / READ_ONCE */
if (pool->p.flags & PP_FLAG_DMA_SYNC_DEV) @@ -820,7 +825,7 @@ static struct page *page_pool_drain_frag(struct page_pool *pool, if (likely(page_pool_unref_page(page, drain_count))) return NULL;
- if (page_ref_count(page) == 1 && !page_is_pfmemalloc(page)) { + if (__page_pool_page_can_be_recycled(page)) { if (pool->p.flags & PP_FLAG_DMA_SYNC_DEV) page_pool_dma_sync_for_device(pool, page, -1);