linux-kernel - Re: [PATCH] mm: cma: Use pr_err

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Message-ID: <YEpjyBLJfdiOHnKf@google.com>
Date:   Thu, 11 Mar 2021 10:39:04 -0800
From:   Minchan Kim <minchan@...nel.org>
To:     Baolin Wang <baolin.wang@...ux.alibaba.com>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: cma: Use pr_err_ratelimited for CMA warning

On Tue, Mar 09, 2021 at 05:16:06PM +0800, Baolin Wang wrote:
> If we did not reserve extra CMA memory, the log buffer can be
> easily filled up by CMA failure warning when the devices calling
> dmam_alloc_coherent() to alloc DMA memory. Thus we can use
> pr_err_ratelimited() instead to reduce the duplicate CMA warning.
> 
> Signed-off-by: Baolin Wang <baolin.wang@...ux.alibaba.com>
Acked-by: Minchan Kim <minchan@...nel.org>