summaryrefslogtreecommitdiff
path: root/arch/x86/mm/pageattr.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/mm/pageattr.c')
-rw-r--r--arch/x86/mm/pageattr.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index f799076e3d57..db7a10082238 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -2309,9 +2309,13 @@ void __kernel_map_pages(struct page *page, int numpages, int enable)
/*
* We should perform an IPI and flush all tlbs,
- * but that can deadlock->flush only current cpu:
+ * but that can deadlock->flush only current cpu.
+ * Preemption needs to be disabled around __flush_tlb_all() due to
+ * CR3 reload in __native_flush_tlb().
*/
+ preempt_disable();
__flush_tlb_all();
+ preempt_enable();
arch_flush_lazy_mmu_mode();
}