Date: Mon, 29 Mar 2010 08:36:28 -0700 From: Matthew Jacob <mj@feral.com> To: freebsd-scsi@freebsd.org Subject: Re: How is supposed to be protected the units list? Message-ID: <4BB0C8FC.9020107@feral.com> In-Reply-To: <3bbf2fe11003200523t60895bfv1fa73d04e58a7838@mail.gmail.com> References: <3bbf2fe11002281655i61a5f0a0if3f381ad0c4a1ef8@mail.gmail.com> <3bbf2fe11003031532u2207eb55h19c3a045215a7d84@mail.gmail.com> <4B8EF336.80107@feral.com> <3bbf2fe11003031547kd5f7314t3d83b2bde06c1c2f@mail.gmail.com> <4B8EF990.5030407@feral.com> <3bbf2fe11003031607wa3727b5ke89bc2a909d4d6a6@mail.gmail.com> <4B901419.8060800@feral.com> <3bbf2fe11003041737p30690522ya81e1b8f4bd6bbf9@mail.gmail.com> <3bbf2fe11003120601y3c403a1ct50f9fc6c1f0903bf@mail.gmail.com> <4B9A91DA.7030107@FreeBSD.org> <3bbf2fe11003200523t60895bfv1fa73d04e58a7838@mail.gmail.com>
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Sorry for being quiet about this. I'm going to look at this again today. It turns out where I work there is tremendous amount of pain about this also. > So I made this new patch using the bus lock: > http://www.freebsd.org/~attilio/Sandvine/pdrv/xpt_lock.diff > > I would have preferred to have a dedicated lock for the units lists, > but as long as you seem having strong opionion, I'm fine with it. > Maybe Matt wants to add his refcounting modifies using this scheme if > we came to a consensous? > > Thanks, > Attilio > > > >
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