Date: Thu, 15 Apr 2010 16:40:54 +0000 (UTC) From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs zfs_vfsops.c zfs_vnops.c Message-ID: <201004151641.o3FGf2wF052077@repoman.freebsd.org>
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pjd 2010-04-15 16:40:54 UTC
FreeBSD src repository
Modified files:
sys/cddl/contrib/opensolaris/uts/common/fs/zfs zfs_vfsops.c
zfs_vnops.c
Log:
SVN rev 206667 on 2010-04-15 16:40:54Z by pjd
Fix 3-way deadlock that can happen because of ZFS and vnode lock
order reversal.
thread0 (vfs_fhtovp) thread1 (vop_getattr) thread2 (zfs_recv)
-------------------- --------------------- ------------------
vn_lock
rrw_enter_read
rrw_enter_write (hangs)
rrw_enter_read (hangs)
vn_lock (hangs)
Submitted by: Attila Nagy <bra@fsn.hu>
MFC after: 3 days
Revision Changes Path
1.36 +7 -4 src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
1.61 +3 -3 src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
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