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Re: [Qemu-devel] [PATCH v4 2/3] qemu-timer: make qemu_timer_mod_ns() and


From: Mike Day
Subject: Re: [Qemu-devel] [PATCH v4 2/3] qemu-timer: make qemu_timer_mod_ns() and qemu_timer_del() thread-safe
Date: Mon, 07 Oct 2013 12:14:05 -0400
User-agent: Notmuch/0.13.2 (http://notmuchmail.org) Emacs/24.3.1 (x86_64-redhat-linux-gnu)

Paolo Bonzini <address@hidden> writes:

> Il 30/09/2013 15:34, Alex Bligh ha scritto:
>> 
>> I think the most likely change here is that the walkers might
>> move outside the BQL. Given modification of this list is so rare,
>> the lock would be very very read heavy, so RCU is probably a
>> sensible option.
>
> I agree.  Keeping the write side on the BQL is sane, but RCU-protecting
> the read side actually makes the rules simpler.
>
> Mike, would you like to give it a shot?

Yes, I will. I'll have a patchset for review within a couple of days. 

Mike
-- 

Mike Day | + 1 919 371-8786 | address@hidden
"Endurance is a Virtue"



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