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Date:   Mon, 19 Oct 2020 07:08:30 -0700
From:   Minchan Kim <>
To:     Peter Zijlstra <>,
        Andrew Morton <>
Cc:     Mikhail Gavrilov <>,
        Linux List Kernel Mailing <>,,
        Mike Galbraith <>,,,,
        Andrew Morton <>
Subject: Re: [PATCH] zram: Fix __zram_bvec_{read,write}() locking order

On Mon, Oct 19, 2020 at 12:13:53PM +0200, Peter Zijlstra wrote:
> Mikhail reported a lockdep spat detailing how __zram_bvec_read() and
> __zram_bvec_write() use zstrm->lock and zspage->lock in opposite order.
> Reported-by: Mikhail Gavrilov <>
> Signed-off-by: Peter Zijlstra (Intel) <>
> Tested-by: Mikhail Gavrilov <>
Acked-by: Minchan Kim <>

Thanks for the fix.

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