diff options
| author | travis@sgi.com <travis@sgi.com> | 2008-01-30 13:33:22 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:22 +0100 |
| commit | c49a4955ea504c82f6b690491639bba5b8c1dc47 (patch) | |
| tree | badef899e3e3376c1af68b942b7f6c8ff9a36df5 /arch/x86/mm | |
| parent | 602a54a8cab2759fceb20b3e0c2a27c4eac005df (diff) | |
x86: add debug of invalid per_cpu map accesses
Provide a means to trap usages of per_cpu map variables before
they are setup. Define CONFIG_DEBUG_PER_CPU_MAPS to activate.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 5d24dc1ec23..e157cb274b2 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -37,6 +37,9 @@ u16 x86_cpu_to_node_map_init[NR_CPUS] = { void *x86_cpu_to_node_map_early_ptr; DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE; EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map); +#ifdef CONFIG_DEBUG_PER_CPU_MAPS +EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr); +#endif u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = { [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE |