Date: Tue, 30 Aug 2005 16:12:03 +0000 (UTC) From: Alexander Kabaev <kan@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern vfs_lookup.c Message-ID: <200508301612.j7UGC3CM085774@repoman.freebsd.org>
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kan 2005-08-30 16:12:03 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_6)
sys/kern vfs_lookup.c
Log:
MFC r1.81:
Do not keep parent directory locked while calling VFS_ROOT to
traverse mount points in lookup(). The lock can be dropped safely
around VFS_ROOT because LOCKPARENT semantics with child and parent
vnodes coming from different FSes does not really have any meaningful
use and we do not really care about parent state after we relock it.
This prevents easily triggered deadlock on systems using automounter
daemon.
Approved by: re (scottl)
Revision Changes Path
1.80.2.1 +2 -0 src/sys/kern/vfs_lookup.c
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