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Re: [Qemu-devel] [PATCH] [RFC] aio/async: Add timed bottom-halves


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] [RFC] aio/async: Add timed bottom-halves
Date: Tue, 16 Jul 2013 09:34:20 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7

Il 16/07/2013 09:30, Alex Bligh ha scritto:
> 
>> You did.  But aio_wait() ignores the timeout.  It is only used by the
>> main loop.
> 
> OK well that seems worth fixing in any case, as even without timed bh's
> that means no bh can be executed for an indeterminate time. I'll have
> a look at that.

No, BHs work because they do aio_notify().  Idle BHs can be skipped for
an indeterminate time, but that's fine because idle BHs are a hack that
we should not need at all.

Paolo



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