From: "Stefan Berger" <stefanb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Jason Gunthorpe
<jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
Cc: tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: [PATCH v3 05/11] tpm: Get rid of module locking
Date: Mon, 22 Feb 2016 19:26:30 -0500 [thread overview]
Message-ID: <201602230026.u1N0Qusd016784@d01av01.pok.ibm.com> (raw)
In-Reply-To: <20160222182245.GC22088-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
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Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org> wrote on 02/22/2016
01:22:45 PM:
> Subject: Re: [tpmdd-devel] [PATCH v3 05/11] tpm: Get rid of module
locking
>
> On Fri, Feb 19, 2016 at 07:42:02AM -0500, Stefan Berger wrote:
> > Get rid of the locking of the module
>
> Little more in the comment please..
>
> Now that the tpm core has strong locking around 'ops' it is possible
> to remove a TPM driver, module and all, even while user space still
> has things like /dev/tpmX open. For consistency and simplicity, drop
> the module locking entirely.
Took the text :-) Thanks.
Stefan
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next prev parent reply other threads:[~2016-02-23 0:26 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-19 12:41 [PATCH v3 00/11] Multi-instance vTPM driver Stefan Berger
2016-02-19 12:41 ` [PATCH v3 01/11] tpm: fix the cleanup of struct tpm_chip Stefan Berger
[not found] ` <1455885728-10315-1-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-19 12:41 ` [PATCH v3 02/11] tpm: Get rid of chip->pdev Stefan Berger
[not found] ` <1455885728-10315-3-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 19:25 ` Jarkko Sakkinen
2016-02-19 12:42 ` [PATCH v3 03/11] tpm: Get rid of devname Stefan Berger
[not found] ` <1455885728-10315-4-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 18:19 ` Jason Gunthorpe
[not found] ` <20160222181929.GB22088-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-22 19:42 ` Jarkko Sakkinen
[not found] ` <20160222194202.GC32667-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-22 19:58 ` Jason Gunthorpe
[not found] ` <20160222195816.GL22088-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-22 20:34 ` Jason Gunthorpe
2016-02-23 0:22 ` Stefan Berger
2016-02-19 12:42 ` [PATCH v3 04/11] tpm: Provide strong locking for device removal Stefan Berger
[not found] ` <1455885728-10315-5-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 21:08 ` Jarkko Sakkinen
[not found] ` <20160222210844.GA3310-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-22 22:20 ` Jason Gunthorpe
[not found] ` <20160222222017.GC27228-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 19:40 ` Jarkko Sakkinen
[not found] ` <20160223194014.GA5241-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-23 19:52 ` Jason Gunthorpe
[not found] ` <20160223195246.GC389-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 20:36 ` Jarkko Sakkinen
2016-02-23 20:43 ` Jarkko Sakkinen
2016-02-19 12:42 ` [PATCH v3 05/11] tpm: Get rid of module locking Stefan Berger
[not found] ` <1455885728-10315-6-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 18:22 ` Jason Gunthorpe
[not found] ` <20160222182245.GC22088-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 0:26 ` Stefan Berger [this message]
2016-02-22 21:11 ` Jarkko Sakkinen
[not found] ` <20160222211141.GB3310-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-22 22:15 ` Jason Gunthorpe
2016-02-19 12:42 ` [PATCH v3 06/11] tpm: Split out the devm stuff from tpmm_chip_alloc Stefan Berger
[not found] ` <1455885728-10315-7-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 18:24 ` Jason Gunthorpe
2016-02-22 21:14 ` Jarkko Sakkinen
[not found] ` <20160222211414.GC3310-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-22 22:13 ` Jason Gunthorpe
[not found] ` <20160222221328.GA27228-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 0:45 ` Stefan Berger
2016-02-23 11:31 ` Jarkko Sakkinen
2016-02-19 12:42 ` [PATCH v3 07/11] tpm: Replace device number bitmap with IDR Stefan Berger
[not found] ` <1455885728-10315-8-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 19:06 ` Jason Gunthorpe
[not found] ` <20160222190629.GE22088-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 1:15 ` Stefan Berger
2016-02-23 2:16 ` Stefan Berger
[not found] ` <201602230116.u1N1G4iu012263@d03av02.boulder.ibm.com>
[not found] ` <201602230116.u1N1G4iu012263-nNA/7dmquNI+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-23 2:16 ` Jason Gunthorpe
[not found] ` <20160223021606.GC26177-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 23:04 ` Stefan Berger
[not found] ` <201602232305.u1NN521L020589@d03av01.boulder.ibm.com>
[not found] ` <201602232305.u1NN521L020589-Rn83F4s8Lwc+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-23 23:18 ` Jason Gunthorpe
[not found] ` <201602230217.u1N2HIJT003183@d03av05.boulder.ibm.com>
[not found] ` <201602230217.u1N2HIJT003183-3MP/CPU4Muo+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-23 2:18 ` Jason Gunthorpe
2016-02-19 12:42 ` [PATCH v3 08/11] tpm: Introduce TPM_CHIP_FLAG_VIRTUAL Stefan Berger
[not found] ` <1455885728-10315-9-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 19:19 ` Jason Gunthorpe
[not found] ` <20160222191922.GH22088-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 1:20 ` [PATCH v3 08/11] tpm: IntroduceTPM_CHIP_FLAG_VIRTUAL Stefan Berger
2016-02-23 1:21 ` Stefan Berger
[not found] ` <201602230121.u1N1LYk2024786@d01av01.pok.ibm.com>
[not found] ` <201602230121.u1N1LYk2024786-4ZtxiNBBw+3ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-23 2:05 ` Jason Gunthorpe
[not found] ` <20160223020515.GA26177-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 3:40 ` Stefan Berger
[not found] ` <201602230116.u1N1Ghac006778@d01av05.pok.ibm.com>
[not found] ` <201602230116.u1N1Ghac006778-8DuMPbUlb4HImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-23 2:06 ` Jason Gunthorpe
2016-02-19 12:42 ` [PATCH v3 09/11] tpm: Driver for supporting multiple emulated TPMs Stefan Berger
[not found] ` <1455885728-10315-10-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-02-22 19:27 ` Jason Gunthorpe
[not found] ` <20160222192741.GI22088-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-23 1:45 ` Stefan Berger
[not found] ` <201602230142.u1N1gSuF029481@d01av05.pok.ibm.com>
[not found] ` <201602230142.u1N1gSuF029481-8DuMPbUlb4HImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-23 2:17 ` Jason Gunthorpe
[not found] ` <20160223021730.GD26177-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-24 23:10 ` Stefan Berger
[not found] ` <201602242306.u1ON6qGP030251-8DuMPbUlb4HImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-25 13:17 ` Jarkko Sakkinen
[not found] ` <20160225131732.GA20860-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-25 14:12 ` Stefan Berger
[not found] ` <201602251409.u1PE98LH012367@d01av05.pok.ibm.com>
[not found] ` <201602251409.u1PE98LH012367-8DuMPbUlb4HImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-25 17:39 ` Jason Gunthorpe
[not found] ` <20160225173956.GA1407-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-25 18:42 ` Stefan Berger
[not found] ` <201602251842.u1PIgEuL014249@d03av03.boulder.ibm.com>
[not found] ` <201602251842.u1PIgEuL014249-MijUUJkLaQs+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2016-02-25 20:31 ` Jason Gunthorpe
[not found] ` <20160225203117.GA22984-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-02-25 22:11 ` Stefan Berger
2016-02-23 10:22 ` Jarkko Sakkinen
[not found] ` <20160223102211.GA9474-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-02-23 12:09 ` Stefan Berger
[not found] ` <201602231210.u1NCAD6D017196@d01av03.pok.ibm.com>
[not found] ` <201602231210.u1NCAD6D017196-CUdSWdNILC7ImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-02-23 18:36 ` Jarkko Sakkinen
2016-02-19 12:42 ` [PATCH v3 10/11] tpm: Initialize TPM and get durations and timeouts Stefan Berger
2016-02-19 12:42 ` [PATCH v3 11/11] A test program for vTPM device creation Stefan Berger
2016-02-22 19:20 ` [PATCH v3 00/11] Multi-instance vTPM driver Jarkko Sakkinen
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