linux-kernel - Re: [PATCH] dma-buf: cma_heap: Fix mutex locking section

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Message-ID: <CAO_48GHsoixQ8kpdMTnKy--jC+vphLEmf7L_1eDivRV=tdwZog@mail.gmail.com>
Date:   Thu, 13 Jan 2022 16:37:47 +0530
From:   Sumit Semwal <sumit.semwal@...aro.org>
To:     John Stultz <john.stultz@...aro.org>
Cc:     Weizhao Ouyang <o451686892@...il.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Liam Mark <lmark@...eaurora.org>,
        Laura Abbott <labbott@...nel.org>,
        Brian Starkey <brian.starkey@....com>,
        christian.koenig@....com, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dma-buf: cma_heap: Fix mutex locking section

Hello Weizhao,

On Tue, 4 Jan 2022 at 13:13, John Stultz <john.stultz@...aro.org> wrote:
>
> On Mon, Jan 3, 2022 at 11:36 PM Weizhao Ouyang <o451686892@...il.com> wrote:
> >
> > Fix cma_heap_buffer mutex locking critical section to protect vmap_cnt
> > and vaddr.
> >
> > Fixes: a5d2d29e24be ("dma-buf: heaps: Move heap-helper logic into the cma_heap implementation")
> > Signed-off-by: Weizhao Ouyang <o451686892@...il.com>
>
> Looks good to me!  Thanks so much for sending this in!
Thanks for the patch; it's merged to drm-misc-fixes.
>
> Acked-by: John Stultz <john.stultz@...aro.org>
>
> thanks again
> -john


Best,
Sumit.