linux-kernel - Re: [RFC 1/1 linux-next] gfs2: convert simple

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Date:	Thu, 30 Apr 2015 13:54:32 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	fabf@...net.be, swhiteho@...hat.com
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC 1/1 linux-next] gfs2: convert simple_str to kstr

[cc linux-kernel]

On Thu, Apr 30, 2015 at 1:53 PM, Alexey Dobriyan <adobriyan@...il.com> wrote:
>> By default I used destination type as a reference. Maybe it's wrong and
>> we really want to read long, unsigned long from source ?
>
> long and unsigned long -- no. Always look at type of data.
> There are many places where unsigned long is needlessly
> used because there is no simple_strtoint().
>
> Your patch is OK except block_store() wdack_store() chunks:
>
>> @@ static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
>>    ssize_t ret = len;
>>  - int val;
>>  + int val, error;
>
> There is no need to add second "error" variable and
> there is no need for it to be ssize_t:
>
> int ret;
>
> ret = kstrtoint();
> if (ret < 0)
>       return ret;
> if (val == 1)
> ...
> else if (val == 0)
> ...
> else
>     return -EINVAL;
> return len;
>
> Overall, this code is exactly code kstrto*() was designed for.
--
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