| commit | 48533eca606efcf63ef4080ded5618e0b17ee3d7 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Thu Oct 05 11:45:04 2023 +0000 |
| committer | Jakub Kicinski <kuba@kernel.org> | Fri Oct 06 16:29:08 2023 -0700 |
| tree | 6d8d31948a88e1b196c2b631b20f5d2a5af98197 | |
| parent | a1fb841f9d189d257814562dacb3d65667f2a9c3 [diff] |
net: sock_dequeue_err_skb() optimization Exit early if the list is empty. Some applications using TCP zerocopy are calling recvmsg( ... MSG_ERRQUEUE) and hit this case quite often, probably because busy polling only deals with sk_receive_queue. Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20231005114504.642589-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>