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| author | Zhao Chenhui <chenhui.zhao@freescale.com> | 2013-05-09 05:48:54 (GMT) |
|---|---|---|
| committer | Fleming Andrew-AFLEMING <AFLEMING@freescale.com> | 2013-05-13 22:26:53 (GMT) |
| commit | 061b810224f7f3c74619b50eb8ef91c33529fcfb (patch) | |
| tree | 2c8f2b0bb6a5f19e8688f9d09e5304b1e426e1c8 /arch/powerpc | |
| parent | a0abc77826c9af394baf35c1b7d636aacc2077f8 (diff) | |
| download | linux-fsl-qoriq-061b810224f7f3c74619b50eb8ef91c33529fcfb.tar.xz | |
powerpc/sysfs: disable hotplug for the boot cpu
Some features depend on the boot cpu, for instance, hibernate/suspend.
So disable hotplug for the boot cpu.
Change-Id: I1e582c4b3d7d243e9fb04dab3174da21a2e25b94
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Reviewed-on: http://git.am.freescale.net:8181/2457
Reviewed-by: Wood Scott-B07421 <scottwood@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/sysfs.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index 3ce1f86..0591d2a6 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -655,8 +655,10 @@ static int __init topology_init(void) * CPU. For instance, the boot cpu might never be valid * for hotplugging. */ - if (ppc_md.cpu_die) + if (ppc_md.cpu_die && cpu != boot_cpuid) c->hotpluggable = 1; + else + c->hotpluggable = 0; if (cpu_online(cpu) || c->hotpluggable) { register_cpu(c, cpu); |