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Message-ID: <YzNPTwVKb7ssrH01@yury-laptop> Date: Tue, 27 Sep 2022 12:30:23 -0700 From: Yury Norov <yury.norov@...il.com> To: Valentin Schneider <vschneid@...hat.com> Cc: netdev@...r.kernel.org, linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org, Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Rasmus Villemoes <linux@...musvillemoes.dk>, Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Vincent Guittot <vincent.guittot@...aro.org>, Dietmar Eggemann <dietmar.eggemann@....com>, Steven Rostedt <rostedt@...dmis.org>, Mel Gorman <mgorman@...e.de>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Heiko Carstens <hca@...ux.ibm.com>, Tony Luck <tony.luck@...el.com>, Jonathan Cameron <Jonathan.Cameron@...wei.com>, Gal Pressman <gal@...dia.com>, Tariq Toukan <tariqt@...dia.com>, Jesse Brandeburg <jesse.brandeburg@...el.com> Subject: Re: [PATCH v4 5/7] sched/topology: Introduce sched_numa_hop_mask() On Tue, Sep 27, 2022 at 05:45:10PM +0100, Valentin Schneider wrote: > On 25/09/22 08:00, Yury Norov wrote: > > On Fri, Sep 23, 2022 at 04:55:40PM +0100, Valentin Schneider wrote: > >> +/** > >> + * sched_numa_hop_mask() - Get the cpumask of CPUs at most @hops hops away. > >> + * @node: The node to count hops from. > >> + * @hops: Include CPUs up to that many hops away. 0 means local node. > >> + * > >> + * Requires rcu_lock to be held. Returned cpumask is only valid within that > >> + * read-side section, copy it if required beyond that. > >> + * > >> + * Note that not all hops are equal in distance; see sched_init_numa() for how > >> + * distances and masks are handled. > >> + * > >> + * Also note that this is a reflection of sched_domains_numa_masks, which may change > >> + * during the lifetime of the system (offline nodes are taken out of the masks). > >> + */ > > > > Since it's exported, can you declare function parameters and return > > values properly? > > > > I'll add a bit about the return value; what is missing for the parameters? My bad, scratch this.
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