CVS commit: [netbsd-8] src/sys/netipsec

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Fri Dec  1 09:21:15 UTC 2017

Modified Files:
        src/sys/netipsec [netbsd-8]: key.c

Log Message:
Pull up following revision(s) (requested by christos in ticket #415):
        sys/netipsec/key.c: revision 1.244
        sys/netipsec/key.c: revision 1.245
Use KDASSERT for mutex_ownable
Because mutex_ownable is not cheap.
Fix a deadlock happening if !NET_MPSAFE
If NET_MPSAFE isn't set, key_timehandler_work is executed with holding
softnet_lock. This means that localcount_drain can be called with holding
softnet_lock resulting in a deadlock that localcount_drain waits for packet
processing to release a reference to SP/SA while network processing is prevented
by softnet_lock.
Fix the deadlock by not taking softnet_lock in key_timehandler_work. It's okay
because IPsec is MP-safe even if !NET_MPSAFE. Note that the change also needs
to enable pserialize_perform because the IPsec code can be run in parallel now.
Reported by christos@


To generate a diff of this commit:
cvs rdiff -u -r1.163.2.4 -r1.163.2.5 src/sys/netipsec/key.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.