From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Hohnbaum Date: Tue, 29 Oct 2002 22:35:28 +0000 Subject: Re: [Linux-ia64] Re: [PATCH] topology for ia64 Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Tue, 2002-10-29 at 14:19, Matthew Dobson wrote: > Erich Focht wrote: > +/* > + * Returns the number of the first CPU on Node 'node'. > + * Slow in the current implementation. > + * Who needs this? > + */ > +/* #define __node_to_first_cpu(node) pool_cpus[pool_ptr[node]] */ > +static inline int __node_to_first_cpu(int node) > > No one is using it now. I think that I will probably deprecate this > function in the near future as it is pretty useless. Anyone looking for > that functionality can just do an __ffs(__node_to_cpu_mask(node)) > instead, and hope that there is a reasonably quick implementation of > __node_to_cpu_mask. > I'm using this in the simple NUMA scheduler. This is quite useful for iterating through a specific node's CPUs. Yes, the functionality can be obtained in a different manner, but is less obvious. -- Michael Hohnbaum 503-578-5486 hohnbaum@us.ibm.com T/L 775-5486