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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-08-12 15:08:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-12 16:07:28 -0700 |
| commit | 3ee1062b4ee82a56294808a065b64f4bc6781a56 (patch) | |
| tree | 6524b1df35cf4be3fd66d767a5b1a4c170be63d8 | |
| parent | 74768ed833344bb0f82b97cee46320a3d7f09ecd (diff) | |
| download | kernel-common-3ee1062b4ee82a56294808a065b64f4bc6781a56.tar.gz kernel-common-3ee1062b4ee82a56294808a065b64f4bc6781a56.tar.bz2 kernel-common-3ee1062b4ee82a56294808a065b64f4bc6781a56.zip | |
cpu hotplug: s390 doesn't support additional_cpus anymore.
s390 doesn't support the additional_cpus kernel parameter anymore since a
long time. So we better update the code and documentation to reflect
that.
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | Documentation/cpu-hotplug.txt | 5 | ||||
| -rw-r--r-- | kernel/cpu.c | 2 |
2 files changed, 1 insertions, 6 deletions
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index ba0aacde94fb..94bbc27ddd4f 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt @@ -59,15 +59,10 @@ apicid values in those tables for disabled apics. In the event BIOS doesn't mark such hot-pluggable cpus as disabled entries, one could use this parameter "additional_cpus=x" to represent those cpus in the cpu_possible_map. -s390 uses the number of cpus it detects at IPL time to also the number of bits -in cpu_possible_map. If it is desired to add additional cpus at a later time -the number should be specified using this option or the possible_cpus option. - possible_cpus=n [s390 only] use this to set hotpluggable cpus. This option sets possible_cpus bits in cpu_possible_map. Thus keeping the numbers of bits set constant even if the machine gets rebooted. - This option overrides additional_cpus. CPU maps and such ----------------- diff --git a/kernel/cpu.c b/kernel/cpu.c index c977c339f559..f17e9854c246 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -369,7 +369,7 @@ int __cpuinit cpu_up(unsigned int cpu) if (!cpu_isset(cpu, cpu_possible_map)) { printk(KERN_ERR "can't online cpu %d because it is not " "configured as may-hotadd at boot time\n", cpu); -#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) || defined(CONFIG_S390) +#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) printk(KERN_ERR "please check additional_cpus= boot " "parameter\n"); #endif |