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Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 kgdb fixlet from Ingo Molnar: "A single debugging related commit: compress the memory usage of a kgdb data structure" * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kgdb: Replace bool_int_array[NR_CPUS] with bitmap
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commit
0f25f2c1b1
@ -511,26 +511,31 @@ single_step_cont(struct pt_regs *regs, struct die_args *args)
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return NOTIFY_STOP;
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}
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static int was_in_debug_nmi[NR_CPUS];
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static DECLARE_BITMAP(was_in_debug_nmi, NR_CPUS);
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static int kgdb_nmi_handler(unsigned int cmd, struct pt_regs *regs)
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{
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int cpu;
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switch (cmd) {
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case NMI_LOCAL:
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if (atomic_read(&kgdb_active) != -1) {
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/* KGDB CPU roundup */
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kgdb_nmicallback(raw_smp_processor_id(), regs);
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was_in_debug_nmi[raw_smp_processor_id()] = 1;
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cpu = raw_smp_processor_id();
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kgdb_nmicallback(cpu, regs);
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set_bit(cpu, was_in_debug_nmi);
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touch_nmi_watchdog();
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return NMI_HANDLED;
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}
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break;
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case NMI_UNKNOWN:
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if (was_in_debug_nmi[raw_smp_processor_id()]) {
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was_in_debug_nmi[raw_smp_processor_id()] = 0;
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cpu = raw_smp_processor_id();
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if (__test_and_clear_bit(cpu, was_in_debug_nmi))
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return NMI_HANDLED;
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}
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break;
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default:
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/* do nothing */
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