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| author | Michael Bringmann <mwb@linux.vnet.ibm.com> | 2017-09-08 22:47:47 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-10-16 14:12:04 +0200 |
| commit | cee5405da4020b0b0233bc8fb7c8da7322d2c52e (patch) | |
| tree | 7aa1ab90fe1ab627a6dcd01d7114bbd387a0094e /arch/powerpc/include | |
| parent | powerpc/vphn: Improve recognition of PRRN/VPHN (diff) | |
| download | linux-cee5405da4020b0b0233bc8fb7c8da7322d2c52e.tar.xz linux-cee5405da4020b0b0233bc8fb7c8da7322d2c52e.zip | |
powerpc/hotplug: Improve responsiveness of hotplug change
powerpc/hotplug: On Power systems with shared configurations of CPUs
and memory, there are some issues with the association of additional
CPUs and memory to nodes when hot-adding resources. During hotplug
CPU operations, this patch resets the timer on topology update work
function to a small value to better ensure that the CPU topology is
detected and configured sooner.
Signed-off-by: Michael Bringmann <mwb@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/topology.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index 2d84bca8d053..34da2c5fd1df 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -96,6 +96,14 @@ static inline int prrn_is_enabled(void) } #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */ +#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_NEED_MULTIPLE_NODES) +#if defined(CONFIG_PPC_SPLPAR) +extern int timed_topology_update(int nsecs); +#else +#define timed_topology_update(nsecs) +#endif /* CONFIG_PPC_SPLPAR */ +#endif /* CONFIG_HOTPLUG_CPU || CONFIG_NEED_MULTIPLE_NODES */ + #include <asm-generic/topology.h> #ifdef CONFIG_SMP |