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| author | Mike Travis <travis@sgi.com> | 2009-01-01 03:08:46 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-03 19:00:55 +0100 |
| commit | 9628937d5b37169151c5f6bbd40919c6ac958a46 (patch) | |
| tree | 09e49f6960806e4115b3345ccc4b5745ca784074 /arch/x86/kernel/msr.c | |
| parent | sched: put back some stack hog changes that were undone in kernel/sched.c (diff) | |
| download | linux-9628937d5b37169151c5f6bbd40919c6ac958a46.tar.xz linux-9628937d5b37169151c5f6bbd40919c6ac958a46.zip | |
x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids
Impact: Reduce future system panics due to cpumask operations using NR_CPUS
Insure that code does not look at bits >= nr_cpu_ids as when cpumasks are
allocated based on nr_cpu_ids, these extra bits will not be defined.
Also some other minor updates:
* change in to use cpu accessor function set_cpu_present() instead of
directly accessing cpu_present_map w/cpu_clear() [arch/x86/kernel/reboot.c]
* use cpumask_of() instead of &cpumask_of_cpu() [arch/x86/kernel/reboot.c]
* optimize some cpu_mask_to_apicid_and functions.
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/msr.c')
| -rw-r--r-- | arch/x86/kernel/msr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 82a7c7ed6d45..726266695b2c 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -136,7 +136,7 @@ static int msr_open(struct inode *inode, struct file *file) lock_kernel(); cpu = iminor(file->f_path.dentry->d_inode); - if (cpu >= NR_CPUS || !cpu_online(cpu)) { + if (cpu >= nr_cpu_ids || !cpu_online(cpu)) { ret = -ENXIO; /* No such CPU */ goto out; } |