[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] Re-enable MSI support
On 10/12/2008 17:01, "Espen Skoglund" <espen.skoglund@xxxxxxxxxxxxx> wrote: >> Ahh, yes, I didn't realize this. So how do you think changing it to >> spinlock, since it is not performance ciritical. Or do you know how >> much benifit for read_lock? > > It may not be performance critical, but I don't particularly like > seeing big global locks introduced. By the looks of it this lock > would also protect everything related to interrupt management. A global lock on control-plane operations such as add/remove/assign seems okay to me. On data path operations such as interrupt handlers then obviously not. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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