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authorHirokazu Takata <takata@linux-m32r.org>2005-10-14 18:59:07 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-14 20:10:12 -0400
commita90933fb4e7b85587e5cbdf863deeb16695c19bd (patch)
treeb27be41b3412d5ffdc90b3f7d76f2a2aa25662f5 /arch/m32r/kernel/smp.c
parent6593b58cfb54138781c5cd88f605e2ae663301b0 (diff)
[PATCH] m32r: Fix smp.c for preempt kernel
This patch fixes the following BUG message of arch/m32r/smp.c for CONFIG_DEBUG_PREEMPT: BUG: using smp_processor_id() in preemptible This message is displayed by an smp_processor_id() execution during kernel's preemptible-state. Signed-off-by: Hitoshi Yamamoto <hitoshiy@isl.melco.co.jp> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m32r/kernel/smp.c')
-rw-r--r--arch/m32r/kernel/smp.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index a4576ac7e870..8b1f6eb76870 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -275,12 +275,14 @@ static void flush_tlb_all_ipi(void *info)
275 *==========================================================================*/ 275 *==========================================================================*/
276void smp_flush_tlb_mm(struct mm_struct *mm) 276void smp_flush_tlb_mm(struct mm_struct *mm)
277{ 277{
278 int cpu_id = smp_processor_id(); 278 int cpu_id;
279 cpumask_t cpu_mask; 279 cpumask_t cpu_mask;
280 unsigned long *mmc = &mm->context[cpu_id]; 280 unsigned long *mmc;
281 unsigned long flags; 281 unsigned long flags;
282 282
283 preempt_disable(); 283 preempt_disable();
284 cpu_id = smp_processor_id();
285 mmc = &mm->context[cpu_id];
284 cpu_mask = mm->cpu_vm_mask; 286 cpu_mask = mm->cpu_vm_mask;
285 cpu_clear(cpu_id, cpu_mask); 287 cpu_clear(cpu_id, cpu_mask);
286 288
@@ -343,12 +345,14 @@ void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
343void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va) 345void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
344{ 346{
345 struct mm_struct *mm = vma->vm_mm; 347 struct mm_struct *mm = vma->vm_mm;
346 int cpu_id = smp_processor_id(); 348 int cpu_id;
347 cpumask_t cpu_mask; 349 cpumask_t cpu_mask;
348 unsigned long *mmc = &mm->context[cpu_id]; 350 unsigned long *mmc;
349 unsigned long flags; 351 unsigned long flags;
350 352
351 preempt_disable(); 353 preempt_disable();
354 cpu_id = smp_processor_id();
355 mmc = &mm->context[cpu_id];
352 cpu_mask = mm->cpu_vm_mask; 356 cpu_mask = mm->cpu_vm_mask;
353 cpu_clear(cpu_id, cpu_mask); 357 cpu_clear(cpu_id, cpu_mask);
354 358