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Re: [Qemu-block] [PATCH v2 0/7] Call check and invalidate_cache from cor

From: Kevin Wolf
Subject: Re: [Qemu-block] [PATCH v2 0/7] Call check and invalidate_cache from coroutine context
Date: Wed, 17 Jan 2018 14:33:36 +0100
User-agent: Mutt/1.9.1 (2017-09-22)

Am 17.01.2018 um 14:15 hat Paolo Bonzini geschrieben:
> On 17/01/2018 13:59, Kevin Wolf wrote:
> > Am 17.01.2018 um 12:25 hat Paolo Bonzini geschrieben:
> >> Check and invalidate_cache share some parts of the implementation
> >> with the regular I/O path.  This is sometimes complicated because the
> >> I/O path wants to use a CoMutex but that is not possible outside coroutine
> >> context.  By moving things to coroutine context, we can remove special
> >> cases.  In fact, invalidate_cache is already called from coroutine context
> >> because incoming migration is placed in a coroutine.
> >>
> >> While at it, I'm including two patches from Stefan to rename the
> >> bdrv_create callback to bdrv_co_create, because it is already called
> >> from coroutine context.
> > I'm using .bdrv_co_create for the QAPI type based function that will be
> > used from QMP blockdev-create, so it would be good if we leave the
> > legacy function with its old name or at least choose a different new
> > name for it.
> .bdrv_co_create_opts since it takes QemuOpts*?

Sounds good enough to me.


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