From 090de0b77ceed1f1d05883fa744760f0c65d9c31 Mon Sep 17 00:00:00 2001 From: "hawkes@sgi.com" Date: Fri, 18 Nov 2005 11:30:34 -0800 Subject: [PATCH] [IA64] fix bug in sn/ia64 for sparse CPU numbering The kernel's use of the for_each_*cpu(i) macros has allowed for sparse CPU numbering. When I hacked the kernel to test sparse cpu_present_map[] and cpu_possible_map[] cpumasks, I discovered one remaining spot, in sn_hwperf_ioctl() during sn initialization, that needs to be fixed. Signed-off-by: John Hawkes Signed-off-by: Dean Roe Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/sn2/sn_hwperf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index 6c6fbca3229..19b54fbcd7e 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c @@ -743,13 +743,14 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, u64 arg) if ((r = sn_hwperf_enum_objects(&nobj, &objs)) == 0) { memset(p, 0, a.sz); for (i = 0; i < nobj; i++) { + int cpuobj_index = 0; if (!SN_HWPERF_IS_NODE(objs + i)) continue; node = sn_hwperf_obj_to_cnode(objs + i); for_each_online_cpu(j) { if (node != cpu_to_node(j)) continue; - cpuobj = (struct sn_hwperf_object_info *) p + j; + cpuobj = (struct sn_hwperf_object_info *) p + cpuobj_index++; slice = 'a' + cpuid_to_slice(j); cdata = cpu_data(j); cpuobj->id = j; -- 2.41.0