Date: Mon, 20 Oct 2008 10:07:28 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern vfs_subr.c Message-ID: <200810201007.m9KA7j0B068074@repoman.freebsd.org>
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kib 2008-10-20 10:07:28 UTC
FreeBSD src repository
Modified files:
sys/kern vfs_subr.c
Log:
SVN rev 184073 on 2008-10-20 10:07:28Z by kib
In vfs_busy(), lockmgr() cannot legitimately sleep, because code checked
MNTK_UNMOUNT before, and mnt_mtx is used as interlock. vfs_busy() always
tries to obtain a shared lock on mnt_lock, the other user is unmount who
tries to drain it, setting MNTK_UNMOUNT before.
Reviewed by: tegge, attilio
Tested by: pho
MFC after: 2 weeks
Revision Changes Path
1.742 +1 -1 src/sys/kern/vfs_subr.c
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