From: Peter Zijlstra peterz@infradead.org
[ Upstream commit 18ba064e42df3661e196ab58a23931fc732a420b ]
Now that architectures are no longer allowed to override tlb_{start,end}_vma() re-arrange code so that there is only one implementation for each of these functions.
This much simplifies trying to figure out what they actually do.
Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Acked-by: Will Deacon will@kernel.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/asm-generic/tlb.h | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-)
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 268674c1d568..fe05a8562c52 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -321,8 +321,8 @@ static inline void __tlb_reset_range(struct mmu_gather *tlb)
#ifdef CONFIG_MMU_GATHER_NO_RANGE
-#if defined(tlb_flush) || defined(tlb_start_vma) || defined(tlb_end_vma) -#error MMU_GATHER_NO_RANGE relies on default tlb_flush(), tlb_start_vma() and tlb_end_vma() +#if defined(tlb_flush) +#error MMU_GATHER_NO_RANGE relies on default tlb_flush() #endif
/* @@ -342,17 +342,10 @@ static inline void tlb_flush(struct mmu_gather *tlb) static inline void tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma) { }
-#define tlb_end_vma tlb_end_vma -static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { } - #else /* CONFIG_MMU_GATHER_NO_RANGE */
#ifndef tlb_flush
-#if defined(tlb_start_vma) || defined(tlb_end_vma) -#error Default tlb_flush() relies on default tlb_start_vma() and tlb_end_vma() -#endif - /* * When an architecture does not provide its own tlb_flush() implementation * but does have a reasonably efficient flush_vma_range() implementation @@ -468,7 +461,6 @@ static inline unsigned long tlb_get_unmap_size(struct mmu_gather *tlb) * case where we're doing a full MM flush. When we're doing a munmap, * the vmas are adjusted to only cover the region to be torn down. */ -#ifndef tlb_start_vma static inline void tlb_start_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { if (tlb->fullmm) @@ -477,9 +469,7 @@ static inline void tlb_start_vma(struct mmu_gather *tlb, struct vm_area_struct * tlb_update_vma_flags(tlb, vma); flush_cache_range(vma, vma->vm_start, vma->vm_end); } -#endif
-#ifndef tlb_end_vma static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { if (tlb->fullmm) @@ -493,7 +483,6 @@ static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vm */ tlb_flush_mmu_tlbonly(tlb); } -#endif
/* * tlb_flush_{pte|pmd|pud|p4d}_range() adjust the tlb->start and tlb->end,