diff options
Diffstat (limited to 'arch/x86_64/kernel/setup64.c')
| -rw-r--r-- | arch/x86_64/kernel/setup64.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 491361752c7..9332d2361e0 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -237,28 +237,17 @@ void __cpuinit cpu_init (void) * set up and load the per-CPU TSS */ for (v = 0; v < N_EXCEPTION_STACKS; v++) { + static const unsigned int order[N_EXCEPTION_STACKS] = { + [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER, + [DEBUG_STACK - 1] = DEBUG_STACK_ORDER + }; if (cpu) { - static const unsigned int order[N_EXCEPTION_STACKS] = { - [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER, - [DEBUG_STACK - 1] = DEBUG_STACK_ORDER - }; - estacks = (char *)__get_free_pages(GFP_ATOMIC, order[v]); if (!estacks) panic("Cannot allocate exception stack %ld %d\n", v, cpu); } - switch (v + 1) { -#if DEBUG_STKSZ > EXCEPTION_STKSZ - case DEBUG_STACK: - cpu_pda(cpu)->debugstack = (unsigned long)estacks; - estacks += DEBUG_STKSZ; - break; -#endif - default: - estacks += EXCEPTION_STKSZ; - break; - } + estacks += PAGE_SIZE << order[v]; orig_ist->ist[v] = t->ist[v] = (unsigned long)estacks; } |