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Commit 35f3d14 (pipe: add support for shrinking and growing pipes) added a slowdown for splice(socket -> pipe), as we might grow the spd used in skb_splice_bits() for each skb we process in splice() syscall. Its not needed since skb lengths are capped. The default on-stack arrays are more than enough. Use MAX_SKB_FRAGS instead of PIPE_DEF_BUFFERS to describe the reasonable limit per skb. Add coalescing support to help splicing of GRO skbs built from linear skbs (linked into frag_list) Signed-off-by: Eric Dumazet <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Tom Herbert <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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