diff mbox series

[net-next,v10,01/22] net: make page_pool_ref_netmem work with net iovs

Message ID 20250108220644.3528845-2-dw@davidwei.uk (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series io_uring zero copy rx | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next, async
netdev/apply fail Patch does not apply to net-next-0

Commit Message

David Wei Jan. 8, 2025, 10:06 p.m. UTC 
From: Pavel Begunkov <asml.silence@gmail.com>

page_pool_ref_netmem() should work with either netmem representation, but
currently it casts to a page with netmem_to_page(), which will fail with
net iovs. Use netmem_get_pp_ref_count_ref() instead.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David Wei <dw@davidwei.uk>
---
 include/net/page_pool/helpers.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h
index 543f54fa3020..582a3d00cbe2 100644
--- a/include/net/page_pool/helpers.h
+++ b/include/net/page_pool/helpers.h
@@ -307,7 +307,7 @@  static inline long page_pool_unref_page(struct page *page, long nr)
 
 static inline void page_pool_ref_netmem(netmem_ref netmem)
 {
-	atomic_long_inc(&netmem_to_page(netmem)->pp_ref_count);
+	atomic_long_inc(netmem_get_pp_ref_count_ref(netmem));
 }
 
 static inline void page_pool_ref_page(struct page *page)