Commit bafb056ce279 ("sparc64: remove mm_cpumask clearing to fix
kthread_use_mm race") fixed this for sparc64, but missed the same bug in
sparc32. Fix it similarly.
Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
---
arch/sparc/mm/srmmu.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index a9aa6a92c7fe..fefbd08bdc91 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -1670,12 +1670,8 @@ static void smp_flush_tlb_mm(struct mm_struct *mm)
cpumask_t cpu_mask;
cpumask_copy(&cpu_mask, mm_cpumask(mm));
cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
- if (!cpumask_empty(&cpu_mask)) {
+ if (!cpumask_empty(&cpu_mask))
xc1((smpfunc_t) local_ops->tlb_mm, (unsigned long) mm);
- if (atomic_read(&mm->mm_users) == 1 && current->active_mm == mm)
- cpumask_copy(mm_cpumask(mm),
- cpumask_of(smp_processor_id()));
- }
local_ops->tlb_mm(mm);
}
}
--
2.23.0
