[PATCH v2 09/24] page_pool: Convert page_pool_defrag_page() to page_pool_defrag_netmem()
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: 2023-01-05 21:47:01
Also in:
linux-mm
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add a page_pool_defrag_page() wrapper. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- include/net/page_pool.h | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index 63aa530922de..8fe494166427 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h@@ -393,7 +393,7 @@ static inline void page_pool_fragment_page(struct page *page, long nr) atomic_long_set(&page->pp_frag_count, nr); } -static inline long page_pool_defrag_page(struct page *page, long nr) +static inline long page_pool_defrag_netmem(struct netmem *nmem, long nr) { long ret;
@@ -406,14 +406,19 @@ static inline long page_pool_defrag_page(struct page *page, long nr) * especially when dealing with a page that may be partitioned * into only 2 or 3 pieces. */ - if (atomic_long_read(&page->pp_frag_count) == nr) + if (atomic_long_read(&nmem->pp_frag_count) == nr) return 0; - ret = atomic_long_sub_return(nr, &page->pp_frag_count); + ret = atomic_long_sub_return(nr, &nmem->pp_frag_count); WARN_ON(ret < 0); return ret; } +static inline long page_pool_defrag_page(struct page *page, long nr) +{ + return page_pool_defrag_netmem(page_netmem(page), nr); +} + static inline bool page_pool_is_last_frag(struct page_pool *pool, struct page *page) {
--
2.35.1