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packet: switch kvzalloc to allocate memory
The patches includes following change: *Use modern kvzalloc()/kvfree() instead of custom allocations. *Remove order argument for alloc_pg_vec, it can get from req. *Remove order argument for free_pg_vec, free_pg_vec now uses kvfree which does not need order argument. *Remove pg_vec_order from struct packet_ring_buffer, no longer need to save/restore 'order' *Remove variable 'order' for packet_set_ring, it is now unused Signed-off-by: Zhang Yu <[email protected]> Signed-off-by: Li RongQing <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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