linux-kernel - Re: [PATCH v2 05/11] iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit

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Message-ID: <878rv46eg3.ffs@tglx>
Date:   Mon, 24 Jan 2022 21:55:56 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Fenghua Yu <fenghua.yu@...el.com>
Cc:     Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Tony Luck <tony.luck@...el.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Ashok Raj <ashok.raj@...el.com>,
        Ravi V Shankar <ravi.v.shankar@...el.com>,
        iommu@...ts.linux-foundation.org, x86 <x86@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 05/11] iommu/sva: Assign a PASID to mm on PASID
 allocation and free it on mm exit

On Mon, Jan 24 2022 at 12:52, Fenghua Yu wrote:
> On Mon, Jan 24, 2022 at 09:36:00PM +0100, Thomas Gleixner wrote:
>> On Mon, Jan 24 2022 at 21:21, Thomas Gleixner wrote:
> Ah. This patch should remove ioasid_get(). So I will change this patch
> as follows:
>
> 1. Remove ioasid_get() because it's not used any more when IOASID's
>    refcount is set to 1 once the IOASID is allocated and is freed on mm exit.
> 2. Change mm_pasid_get() to mm_pasid_set().

Yes. Just resend this one. No need to post the full queue again.

Thanks,

        tglx