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[v3,09/26] page_pool: Convert page_pool_defrag_page() to page_pool_defrag_netmem()

Message ID 20230111042214.907030-10-willy@infradead.org (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series Split netmem from struct page | expand

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Commit Message

Matthew Wilcox Jan. 11, 2023, 4:21 a.m. UTC 
Add a page_pool_defrag_page() wrapper.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
---
 include/net/page_pool.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index 583c13f6f2ab..72e241ebed0a 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -394,7 +394,7 @@  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;
 
@@ -407,14 +407,20 @@  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;
 }
 
+/* Compat, remove when all users gone */
+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)
 {