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Date:   Tue, 9 Jun 2020 23:25:38 -0700
From:   Christoph Hellwig <>
To:     Ritesh Harjani <>
        Hillf Danton <>,,
        Borislav Petkov <>,
        Marek Szyprowski <>,
Subject: Re: [PATCHv2 1/1] ext4: mballoc: Use this_cpu_read instead of

On Tue, Jun 09, 2020 at 04:23:10PM +0530, Ritesh Harjani wrote:
> Simplify reading a seq variable by directly using this_cpu_read API
> instead of doing this_cpu_ptr and then dereferencing it.
> This also avoid the below kernel BUG: which happens when

I see this warning all the time with ext4 using tests VMs, so lets get
this fixed ASAP before -rc1:

Reviewed-by: Christoph Hellwig <>

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