Date: Thu, 29 Jan 2009 12:09:13 -0500 From: John Baldwin <jhb@freebsd.org> To: Edward Tomasz Napierala <trasz@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r187894 - head/sys/ufs/ffs Message-ID: <200901291209.14313.jhb@freebsd.org> In-Reply-To: <200901291647.n0TGlFHZ058776@svn.freebsd.org> References: <200901291647.n0TGlFHZ058776@svn.freebsd.org>
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On Thursday 29 January 2009 11:47:15 am Edward Tomasz Napierala wrote: > Author: trasz > Date: Thu Jan 29 16:47:15 2009 > New Revision: 187894 > URL: http://svn.freebsd.org/changeset/base/187894 > > Log: > Make sure the cdev doesn't go away while the filesystem is still mounted. > Otherwise dev2udev() could return garbage. > > Reviewed by: kib > Approved by: rwatson (mentor) > Sponsored by: FreeBSD Foundation Is this applicable to all filesystems? I'm curious why the VREF() on the vnode associated with the cdev entry (um_devvp) is not sufficient to prevent this? I would have thought that the vnode would have held a reference on the cdev. -- John Baldwin
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