[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-block] [PATCH v4 0/8] Call check and invalidate_cache from cor

From: Kevin Wolf
Subject: Re: [Qemu-block] [PATCH v4 0/8] Call check and invalidate_cache from coroutine context
Date: Tue, 6 Mar 2018 17:37:56 +0100
User-agent: Mutt/1.9.1 (2017-09-22)

Am 01.03.2018 um 17:36 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.
> 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.
> The name is now bdrv_co_create_opts, with bdrv_co_create reserved for
> the QAPI-based version that Kevin is working on.
> qcow2 still has cache flushing in non-coroutine context, coming from
> qcow2_reopen_prepare->qcow2_update_options_prepare,
> qcow2_close->qcow2_inactivate and several dirty bitmap functions.

Thanks, applied to the block branch.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]