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(parent: c828414) | patch
netfilter: ecache: don't use nf_conn spinlock
authorFlorian Westphal <fw@strlen.de>
Sat, 5 Feb 2022 12:00:04 +0000 (13:00 +0100)
committerPablo Neira Ayuso <pablo@netfilter.org>
Wed, 9 Feb 2022 10:44:03 +0000 (11:44 +0100)
commit8dd8678e42b5a8bbd3e2c49cda76c743318c56b0
tree78ababedb6b76293835cfe540805c8dab479e894tree | snapshot
parentc828414ac935bd3df96a8f7028d9d06a3db441e8commit | diff
netfilter: ecache: don't use nf_conn spinlock

For updating eache missed value we can use cmpxchg.
This also avoids need to disable BH.

kernel robot reported build failure on v1 because not all arches support
cmpxchg for u16, so extend this to u32.

This doesn't increase struct size, existing padding is used.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
include/net/netfilter/nf_conntrack_ecache.h diff | blob | history
net/netfilter/nf_conntrack_ecache.c diff | blob | history
Domain: System / Kernel;