Messages in this thread | | | Date | Tue, 08 Apr 2008 13:46:18 -0700 | From | Mike Travis <> | Subject | Re: [PATCH 2/3] cpumask: use new cpus_scnprintf function v3 |
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Bert Wesarg wrote: > On Tue, Apr 8, 2008 at 8:43 PM, Mike Travis <travis@sgi.com> wrote: >> --- linux-2.6.x86.sched.orig/drivers/base/node.c >> +++ linux-2.6.x86.sched/drivers/base/node.c >> @@ -19,22 +19,34 @@ static struct sysdev_class node_class = >> }; >> >> >> -static ssize_t node_read_cpumap(struct sys_device * dev, char * buf) >> +static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf) >> { >> struct node *node_dev = to_node(dev); >> node_to_cpumask_ptr(mask, node_dev->sysdev.id); >> int len; >> >> - /* 2004/06/03: buf currently PAGE_SIZE, need > 1 char per 4 bits. */ >> - BUILD_BUG_ON(MAX_NUMNODES/4 > PAGE_SIZE/2); >> + /* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */ >> + BUILD_BUG_ON((NR_CPUS/32 * 9) > (PAGE_SIZE-1)); > Is this right, that you switch from MAX_NUMNODES to NR_CPUS? > > Regards > Bert
It's printing the number of cpus on a node, so the number of nodes is not important, it's how many cpus can fit on the head of a node... ;-)
Thanks, Mike
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