Date: Thu, 27 Jul 2006 19:58:18 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_mutex.c src/sys/sys mutex.h Message-ID: <200607271958.k6RJwIeW014631@repoman.freebsd.org>
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jhb 2006-07-27 19:58:18 UTC
FreeBSD src repository
Modified files:
sys/kern kern_mutex.c
sys/sys mutex.h
Log:
Write a magic value into mtx_lock when destroying a mutex that will force
all other mtx_lock() operations to block. Previously, when the mutex was
destroyed, it would still have a valid value in mtx_lock(): either the
unowned cookie, which would allow a subsequent mtx_lock() to succeed, or a
pointer to the thread who destroyed the mutex if the mutex was locked when
it was destroyed.
MFC after: 3 days
Revision Changes Path
1.174 +11 -0 src/sys/kern/kern_mutex.c
1.84 +5 -0 src/sys/sys/mutex.h
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