Date: Sat, 23 Apr 2011 11:22:48 +0000 (UTC) From: Rick Macklem <rmacklem@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern vfs_subr.c Message-ID: <201104231122.p3NBMxt4098051@repoman.freebsd.org>
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rmacklem 2011-04-23 11:22:48 UTC
FreeBSD src repository
Modified files:
sys/kern vfs_subr.c
Log:
SVN rev 220967 on 2011-04-23 11:22:48Z by rmacklem
Fix a LOR in vfs_busy() where, after msleeping, it would lock
the mutexes in the wrong order for the case where the
MBF_MNTLSTLOCK is set. I believe this did have the
potential for deadlock. For example, if multiple nfsd threads
called vfs_busyfs(), which calls vfs_busy() with MBF_MNTLSTLOCK.
Thanks go to pho for catching this during his testing.
Tested by: pho
Submitted by: kib
MFC after: 2 weeks
Revision Changes Path
1.808 +2 -1 src/sys/kern/vfs_subr.c
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