linux-kernel - Re: [PATCH BUGFIX IMPROVEMENT 0/8] block, bfq: fix bugs, reduce exec time and boost performance

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Date:   Thu, 07 Mar 2019 23:04:45 +0100
From:   Oleksandr Natalenko <oleksandr@...alenko.name>
To:     Paolo Valente <paolo.valente@...aro.org>
Cc:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, ulf.hansson@...aro.org,
        linus.walleij@...aro.org, broonie@...nel.org,
        bfq-iosched@...glegroups.com, fra.fra.800@...il.com
Subject: Re: [PATCH BUGFIX IMPROVEMENT 0/8] block, bfq: fix bugs, reduce exec
 time and boost performance

Hi.

On 07.03.2019 17:25, Paolo Valente wrote:
> since I didn't make it to submit these ones for 5.1, let me be
> early for 5.2 :)
> 
> These patches fix some bug affecting performance, reduce execution
> time a little bit, and boost throughput and responsiveness.
> 
> They are meant to be applied on top of the last series I submitted:
> https://lkml.org/lkml/2019/1/29/368
> 
> Thanks,
> Paolo
> 
> Francesco Pollicino (2):
>   block, bfq: print SHARED instead of pid for shared queues in logs
>   block, bfq: save & resume weight on a queue merge/split
> 
> Paolo Valente (6):
>   block, bfq: increase idling for weight-raised queues
>   block, bfq: do not idle for lowest-weight queues
>   block, bfq: tune service injection basing on request service times
>   block, bfq: do not merge queues on flash storage with queueing
>   block, bfq: do not tag totally seeky queues as soft rt
>   block, bfq: always protect newly-created queues from existing active
>     queues
> 
>  block/bfq-cgroup.c  |   3 +-
>  block/bfq-iosched.c | 786 ++++++++++++++++++++++++++++++++++++--------
>  block/bfq-iosched.h |  87 +++--
>  block/bfq-wf2q.c    |   2 +-
>  4 files changed, 704 insertions(+), 174 deletions(-)
> 
> --
> 2.20.1

Fails for me with:

===
[11966s] ld: block/bfq-wf2q.o: in function `bfq_pid_to_str':
[11966s] bfq-wf2q.c:(.text+0x3b0): multiple definition of 
`bfq_pid_to_str'; block/bfq-iosched.o:bfq-iosched.c:(.text+0x1ab0): 
first defined here
[11966s] ld: block/bfq-cgroup.o: in function `bfq_pid_to_str':
[11966s] bfq-cgroup.c:(.text+0x3a0): multiple definition of 
`bfq_pid_to_str'; block/bfq-iosched.o:bfq-iosched.c:(.text+0x1ab0): 
first defined here
[11966s] make: *** [Makefile:1021: vmlinux] Error 1
===

-- 
   Oleksandr Natalenko (post-factum)