Date: Thu, 8 Jan 2009 12:47:30 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern vfs_extattr.c Message-ID: <200901081247.n08Cll4K013075@repoman.freebsd.org>
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kib 2009-01-08 12:47:30 UTC
FreeBSD src repository
Modified files:
sys/kern vfs_extattr.c
Log:
SVN rev 186896 on 2009-01-08 12:47:30Z by kib
Do not call namei() while having another user-controlled vnode
locked. Lookup could attempt to recursively lock that vnode.
Do not call vn_start_write(V_WAIT) while vnode is locked, this may
result in a deadlock with suspension.
vfs_busy() the mountpoint before dropping vnode lock for vnode
that was used to look up the mountpoint, to prevent unmount in
between.
Reported and tested by: pho
Reviewed by: rwatson
MFC after: 3 weeks
Revision Changes Path
1.436 +31 -18 src/sys/kern/vfs_extattr.c
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