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net: make page_pool_ref_netmem work with net iovs

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[ Upstream commit cbc16bceea784210d585a42ac9f8f10ce62b300e ]

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.

Fixes: 8ab79ed50c ("page_pool: devmem support")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Link: https://lore.kernel.org/20250108220644.3528845-2-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Pavel Begunkov
2025-01-08 14:06:22 -08:00
committed by Greg Kroah-Hartman
parent 1425cb8295
commit 7a4fd3df85
1 changed files with 1 additions and 1 deletions
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include/net/page_pool/helpers.h
+1 -1
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@@ -294,7 +294,7 @@ static inline long page_pool_unref_page(struct page *page, long nr)
static inline void page_pool_ref_netmem(netmem_ref netmem) 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) static inline void page_pool_ref_page(struct page *page)