Re: [PATCH] block: ratelimite pr_err on IO path

From: Jinpu Wang
Date: Thu Apr 12 2018 - 04:57:08 EST


On Wed, Apr 11, 2018 at 7:07 PM, Elliott, Robert (Persistent Memory)
<elliott@xxxxxxx> wrote:
>> -----Original Message-----
>> From: linux-kernel-owner@xxxxxxxxxxxxxxx [mailto:linux-kernel-
>> owner@xxxxxxxxxxxxxxx] On Behalf Of Jack Wang
>> Sent: Wednesday, April 11, 2018 8:21 AM
>> Subject: [PATCH] block: ratelimite pr_err on IO path
>>
>> From: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxxx>
> ...
>> - pr_err("%s: ref tag error at location %llu " \
>> - "(rcvd %u)\n", iter->disk_name,
>> - (unsigned long long)
>> - iter->seed, be32_to_cpu(pi->ref_tag));
>> + pr_err_ratelimited("%s: ref tag error at "
>> + "location %llu (rcvd %u)\n",
>
> Per process/coding-style.rst, you should keep a string like that on
> one line even if that exceeds 80 columns:
>
> Statements longer than 80 columns will be broken into sensible chunks, unless
> exceeding 80 columns significantly increases readability and does not hide
> information. ... However, never break user-visible strings such as
> printk messages, because that breaks the ability to grep for them.
>
>
Thanks Robert, as the original code keep the 80 columns, I just
followed, I will fix it in v2.


--
Jack Wang
Linux Kernel Developer

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