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Date:   Wed, 10 Jun 2020 12:04:31 +0530
From:   Ritesh Harjani <>
To:     Christoph Hellwig <>,
        Hillf Danton <>,,
        Borislav Petkov <>,
        Marek Szyprowski <>,
Subject: Re: [PATCHv2 1/1] ext4: mballoc: Use this_cpu_read instead of

On 6/10/20 11:55 AM, Christoph Hellwig wrote:
> 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:

Couldn't agree more.

> Reviewed-by: Christoph Hellwig <>



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