Date: Mon, 11 Feb 2002 00:46:47 -0800 (PST) From: Kip Macy <kmacy@netapp.com> To: =?ISO-8859-2?Q?Pawe=B3_Jakub_Dawidek?= <nick@garage.freebsd.pl> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Devices and namei(9). Message-ID: <Pine.GSO.4.10.10202110045090.11010-100000@cranford> In-Reply-To: <20020211094049.B251@garage.freebsd.pl>
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I don't see any reference to you calling vrele or vput. Without that the reference count won't be decreased and the vnode will continue to be locked for all other callers. ========================================================================= For RAIDANT status see: http://cranford.eng.netapp.com:8015/ant3/index.cgi To submit RAIDANT test descriptions go to: http://web.netapp.com/engineering/projects/raidv2/testing/ Ontap on the web: http://web.netapp.com/engineering/projects/raidv2/testing/global/ On Mon, 11 Feb 2002, [ISO-8859-2] Paweł Jakub Dawidek wrote: > Hi. > > I got problem with namei(9) and some devices. > Example (catching syscall open()): > static int > n_open(register struct proc *p, register struct open_args *ea) > { > [...] > long finode = 0; > struct nameidata nd, *ndptr; > [...] > ndptr = &nd; > NDINIT(ndptr, LOOKUP, FOLLOW | SAVENAME, UIO_USERSPACE, ea->path, p); > if (!namei(ndptr)) > if (!VOP_GETATTR(ndptr->ni_vp, &va, p->p_ucred, p)) > finode = va.va_fileid; > [...] > } > > I use namei() coz i want file inode. > But when namei() will be called some devices are blocking. > For example if I do in this way: > [...] > return open(p, ea); > if (!namei(ndptr)) > [...] > Everything is oke, but: > namei(ndptr) > return open(p, ea); > isn't. > % mpg123 some.mp3 > Can't open /dev/dsp! > > And /dev/dsp is completely fucked up, it is still busy even if I unload my > module. Only reboot can free it. > > So what's going on? > Or maybe there is some other way to get file inode? > > -- > Paweł Jakub Dawidek > Network Administrator. > Am I Evil? Yes, I Am. > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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