Files
linux/include/net
Alexander Lobakin 024bfd2e9d page_pool: make page_pool_put_page_bulk() handle array of netmems
Currently, page_pool_put_page_bulk() indeed takes an array of pointers
to the data, not pages, despite the name. As one side effect, when
you're freeing frags from &skb_shared_info, xdp_return_frame_bulk()
converts page pointers to virtual addresses and then
page_pool_put_page_bulk() converts them back. Moreover, data pointers
assume every frag is placed in the host memory, making this function
non-universal.
Make page_pool_put_page_bulk() handle array of netmems. Pass frag
netmems directly and use virt_to_netmem() when freeing xdpf->data,
so that the PP core will then get the compound netmem and take care
of the rest.

Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20241203173733.3181246-9-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-05 18:41:07 -08:00
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