Re: [PATCH RFC 00/14] Add the BFQ I/O Scheduler to blk-mq

From: Paolo Valente
Date: Tue Mar 14 2017 - 10:13:46 EST



> Il giorno 07 mar 2017, alle ore 01:22, Bart Van Assche <bart.vanassche@xxxxxxxxxxx> ha scritto:
>
> On 03/04/2017 08:01 AM, Paolo Valente wrote:
>> Some patch generates WARNINGS with checkpatch.pl, but these WARNINGS
>> seem to be either unavoidable for the involved pieces of code (which
>> the patch just extends), or false positives.
>
> The code in this series looks reasonably clean from a code style point
> of view,

Great, thanks!

> but please address all checkpatch warnings that can be
> addressed easily. A few examples of such checkpatch warnings:
>
> ERROR: "foo * bar" should be "foo *bar"
>

The offending line is:
*(__PTR) = (u64)__data * NSEC_PER_USEC;

so this seems a false positive.

> WARNING: Symbolic permissions 'S_IRUGO|S_IWUSR' are not preferred.
> Consider using octal permissions '0644'.
>

I have used symbolic permissions because I find them much easier to
remember and decode than numeric constants, and because it is done so
in cfq-iosched.c, deadline-iosched.c and now mq-deadline.c. But,
since you share this checkpatch complain, I will switch to constants.

Thanks,
Paolo

> Thanks,
>
> Bart.