Hi, This is a small series to trasform xfrm_state_hash_generation sequence counter to seqcount_spinlock_t, instead of plain seqcount_t.
In general, seqcount_LOCKNAME_t sequence counters allows to associate the lock used for write serialization with the seqcount. This enables lockdep to verify that the write serialization lock is always held before entering the seqcount write section. If lockdep is disabled, this lock association is compiled out and has neither storage size nor runtime overhead. The first patch is a general mainline fix, and has a Fixes tag. Thanks, 8<---------- Ahmed S. Darwish (2): net: xfrm: Localize sequence counter per network namespace net: xfrm: Use sequence counter with associated spinlock include/net/netns/xfrm.h | 4 +++- net/xfrm/xfrm_state.c | 11 ++++++----- 2 files changed, 9 insertions(+), 6 deletions(-) base-commit: 1e28eed17697bcf343c6743f0028cc3b5dd88bf0 -- 2.30.2
