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-rw-r--r--include/asm-generic/tlb.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index 7d0298347ee7..c8232622c8d9 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -35,9 +35,7 @@
35#endif 35#endif
36 36
37/* struct mmu_gather is an opaque type used by the mm code for passing around 37/* struct mmu_gather is an opaque type used by the mm code for passing around
38 * any data needed by arch specific code for tlb_remove_page. This structure 38 * any data needed by arch specific code for tlb_remove_page.
39 * can be per-CPU or per-MM as the page table lock is held for the duration of
40 * TLB shootdown.
41 */ 39 */
42struct mmu_gather { 40struct mmu_gather {
43 struct mm_struct *mm; 41 struct mm_struct *mm;
@@ -57,7 +55,7 @@ DECLARE_PER_CPU(struct mmu_gather, mmu_gathers);
57static inline struct mmu_gather * 55static inline struct mmu_gather *
58tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush) 56tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush)
59{ 57{
60 struct mmu_gather *tlb = &per_cpu(mmu_gathers, smp_processor_id()); 58 struct mmu_gather *tlb = &get_cpu_var(mmu_gathers);
61 59
62 tlb->mm = mm; 60 tlb->mm = mm;
63 61
@@ -85,7 +83,7 @@ tlb_flush_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
85 83
86/* tlb_finish_mmu 84/* tlb_finish_mmu
87 * Called at the end of the shootdown operation to free up any resources 85 * Called at the end of the shootdown operation to free up any resources
88 * that were required. The page table lock is still held at this point. 86 * that were required.
89 */ 87 */
90static inline void 88static inline void
91tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) 89tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
@@ -101,6 +99,8 @@ tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
101 99
102 /* keep the page table cache within bounds */ 100 /* keep the page table cache within bounds */
103 check_pgt_cache(); 101 check_pgt_cache();
102
103 put_cpu_var(mmu_gathers);
104} 104}
105 105
106static inline unsigned int 106static inline unsigned int