Date: Tue, 9 Feb 2010 14:56:10 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern kern_mutex.c sched_4bsd.c sched_ule.c Message-ID: <201002091456.o19EuMxu024108@repoman.freebsd.org>
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attilio 2010-02-09 14:56:10 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/kern kern_mutex.c sched_4bsd.c sched_ule.c
Log:
SVN rev 203704 on 2010-02-09 14:56:10Z by attilio
MFC r202889, r202940:
- Fix a race in sched_switch() of sched_4bsd.
Block the td_lock when acquiring explicitly sched_lock in order to prevent
races with other td_lock contenders.
- Merge the ULE's internal function thread_block_switch() into the global
thread_lock_block() and make the former semantic as the default for
thread_lock_block().
- Split out an invariant in order to have better checks.
Tested by: Giovanni Trematerra
<giovanni dot trematerra at gmail dot com>
Approved by: re (kib)
Revision Changes Path
1.198.2.5 +0 -2 src/sys/kern/kern_mutex.c
1.106.2.9 +9 -4 src/sys/kern/sched_4bsd.c
1.214.2.12 +6 -21 src/sys/kern/sched_ule.c
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