Frederik Deweerdt 6bd8614fc2 splice: do not checksum AF_UNIX sockets ... When `skb_splice_from_iter` was introduced, it inadvertently added checksumming for AF_UNIX sockets. This resulted in significant slowdowns, for example when using sendfile over unix sockets. Using the test code in [1] in my test setup (2G single core qemu), the client receives a 1000M file in: - without the patch: 1482ms (+/- 36ms) - with the patch: 652.5ms (+/- 22.9ms) This commit addresses the issue by marking checksumming as unnecessary in `unix_stream_sendmsg` Cc: stable@vger.kernel.org Signed-off-by: Frederik Deweerdt <deweerdt.lkml@gmail.com> Fixes: 2e910b9532 ("net: Add a function to splice pages into an skbuff for MSG_SPLICE_PAGES") Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/Z1fMaHkRf8cfubuE@xiberoa Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-12-11 20:22:41 -08:00
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af_unix.c	splice: do not checksum AF_UNIX sockets	2024-12-11 20:22:41 -08:00
diag.c	af_unix: Remove U_LOCK_DIAG.	2024-06-25 11:10:18 +02:00
garbage.c	af_unix: Don't call skb_get() for OOB skb.	2024-08-20 15:48:00 -07:00
Kconfig	af_unix: Remove CONFIG_UNIX_SCM.	2024-01-31 16:41:16 -08:00
Makefile	af_unix: Remove CONFIG_UNIX_SCM.	2024-01-31 16:41:16 -08:00
sysctl_net_unix.c	net: Remove the now superfluous sentinel elements from ctl_table array	2024-05-03 13:29:41 +01:00
unix_bpf.c	af_unix: Disable MSG_OOB handling for sockets in sockmap/sockhash	2024-07-17 22:49:00 +02:00