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SubjectRe: [PATCH BUGFIX IMPROVEMENT 0/8] block, bfq: fix bugs, reduce exec time and boost performance
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On 3/7/19 5:25 PM, Paolo Valente wrote:
> Hi,
> 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

I have the earlier series applied & working well. This one applies cleanly
on top, but something's wrong with the bfq_log_bfqq() macro:

CC [M] block/bfq-iosched.o
In file included from block/bfq-iosched.c:140:
block/bfq-iosched.c: In function 'bfq_check_fifo':
block/bfq-iosched.h:1058:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
char pid_str[MAX_PID_STR_LENGTH]; \
^~~~
block/bfq-iosched.c:890:2: note: in expansion of macro 'bfq_log_bfqq'
bfq_log_bfqq(bfqq->bfqd, bfqq, "check_fifo: returned %p", rq);
^~~~~~~~~~~~
block/bfq-iosched.c: In function 'bfq_updated_next_req':
block/bfq-iosched.h:1058:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]

This is with gcc 8.3.0 on top of 5.0++.

thanks,
Holger

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