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SubjectRe: Slow boot in QEMU with virtio-scsi disks
On Sat, 11 Aug 2018 19:39:56 +0200
Oleksandr Natalenko <oleksandr@natalenko.name> wrote:

> Hi.
>
> On 11.08.2018 14:23, Ming Lei wrote:
> > Please test for-4.19/block:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/log/?h=for-4.19/block
> >
> > This slow boot issue should have been fixed by the following commits:
> >
> > 1311326cf475 blk-mq: avoid to synchronize rcu inside
> > blk_cleanup_queue()
> > 97889f9ac24f blk-mq: remove synchronize_rcu() from
> > blk_mq_del_queue_tag_set()
> > 5815839b3ca1 blk-mq: introduce new lock for protecting
> > hctx->dispatch_wait
> > 2278d69f030f blk-mq: don't pass **hctx to blk_mq_mark_tag_wait()
> > 8ab6bb9ee8d0 blk-mq: cleanup blk_mq_get_driver_tag()
>
> Indeed, I can confirm that these commits fix the issue.
>
> Thanks a lot.
>

So do I.

Thanks Ming Lei for the fix !

Cheers,

--
Greg

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