linux-kernel - Re: [PATCH 2/2] blk-iocost: Use alloc_percpu

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Message-ID: <X9Iv/MlqQI00wZRn@mtj.duckdns.org>
Date:   Thu, 10 Dec 2020 09:26:04 -0500
From:   Tejun Heo <tj@...nel.org>
To:     Baolin Wang <baolin.wang@...ux.alibaba.com>
Cc:     axboe@...nel.dk, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] blk-iocost: Use alloc_percpu_gfp() to simplify the
 code

Hello,

On Thu, Dec 10, 2020 at 06:56:45PM +0800, Baolin Wang wrote:
> Use alloc_percpu_gfp() with __GFP_ZERO flag, which can remove
> some explicit initialization code.

__GFP_ZERO is implicit for percpu allocations and local[64]_t's initial
states aren't guaranteed to be all zeros on different archs.

Thanks.

-- 
tejun