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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-06-21 09:07:52 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-06-21 09:07:52 +0200 |
| commit | f0cd9ae5d0df8668e76359a3e0e99856aa9c53b9 (patch) | |
| tree | 84d3297b16fa7e373f2eabef56cd12ae5a9b8a29 /arch/powerpc/include/asm/topology.h | |
| parent | posix-cpu-timers: Make timespec to nsec conversion safe (diff) | |
| parent | Merge branch 'clockevents/4.12-fixes' of https://git.linaro.org/people/daniel... (diff) | |
| download | linux-f0cd9ae5d0df8668e76359a3e0e99856aa9c53b9.tar.xz linux-f0cd9ae5d0df8668e76359a3e0e99856aa9c53b9.zip | |
Merge branch 'timers/urgent' into timers/core
Pick up dependent changes.
Diffstat (limited to 'arch/powerpc/include/asm/topology.h')
| -rw-r--r-- | arch/powerpc/include/asm/topology.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index 8b3b46b7b0f2..329771559cbb 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -44,8 +44,22 @@ extern void __init dump_numa_cpu_topology(void); extern int sysfs_add_device_to_node(struct device *dev, int nid); extern void sysfs_remove_device_from_node(struct device *dev, int nid); +static inline int early_cpu_to_node(int cpu) +{ + int nid; + + nid = numa_cpu_lookup_table[cpu]; + + /* + * Fall back to node 0 if nid is unset (it should be, except bugs). + * This allows callers to safely do NODE_DATA(early_cpu_to_node(cpu)). + */ + return (nid < 0) ? 0 : nid; +} #else +static inline int early_cpu_to_node(int cpu) { return 0; } + static inline void dump_numa_cpu_topology(void) {} static inline int sysfs_add_device_to_node(struct device *dev, int nid) |