Commit e77b0852 authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Linus Torvalds
Browse files

mm/mmu_gather: track page size with mmu gather and force flush if page size change 

This allows an arch which needs to do special handing with respect to
different page size when flushing tlb to implement the same in mmu
gather.

Link: http://lkml.kernel.org/r/1465049193-22197-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com


Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Hugh Dickins <hughd@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e9d55e15

arch/arm/include/asm/tlb.h

+12 −0
Original line number Diff line number Diff line
@@ -225,12 +225,24 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) 
	}

}



static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,

					  struct page *page, int page_size)

{

	return __tlb_remove_page(tlb, page);

}



static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb,

					 struct page *page)

{

	return __tlb_remove_page(tlb, page);

}



static inline void tlb_remove_page_size(struct mmu_gather *tlb,

					struct page *page, int page_size)

{

	return tlb_remove_page(tlb, page);

}



static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,

	unsigned long addr)

{

arch/ia64/include/asm/tlb.h

+12 −0
Original line number Diff line number Diff line
@@ -242,12 +242,24 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) 
	}

}



static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,

					  struct page *page, int page_size)

{

	return __tlb_remove_page(tlb, page);

}



static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb,

					 struct page *page)

{

	return __tlb_remove_page(tlb, page);

}



static inline void tlb_remove_page_size(struct mmu_gather *tlb,

					struct page *page, int page_size)

{

	return tlb_remove_page(tlb, page);

}



/*

 * Remove TLB entry for PTE mapped at virtual address ADDRESS.  This is called for any

 * PTE, not just those pointing to (normal) physical memory.

arch/s390/include/asm/tlb.h

+13 −0
Original line number Diff line number Diff line
@@ -98,11 +98,24 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) 
	free_page_and_swap_cache(page);

}



static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,

					  struct page *page, int page_size)

{

	return __tlb_remove_page(tlb, page);

}



static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb,

					 struct page *page)

{

	return __tlb_remove_page(tlb, page);

}



static inline void tlb_remove_page_size(struct mmu_gather *tlb,

					struct page *page, int page_size)

{

	return tlb_remove_page(tlb, page);

}



/*

 * pte_free_tlb frees a pte table and clears the CRSTE for the

 * page table from the tlb.

arch/sh/include/asm/tlb.h

+12 −0
Original line number Diff line number Diff line
@@ -109,12 +109,24 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) 
	__tlb_remove_page(tlb, page);

}



static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,

					  struct page *page, int page_size)

{

	return __tlb_remove_page(tlb, page);

}



static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb,

					 struct page *page)

{

	return __tlb_remove_page(tlb, page);

}



static inline void tlb_remove_page_size(struct mmu_gather *tlb,

					struct page *page, int page_size)

{

	return tlb_remove_page(tlb, page);

}



#define pte_free_tlb(tlb, ptep, addr)	pte_free((tlb)->mm, ptep)

#define pmd_free_tlb(tlb, pmdp, addr)	pmd_free((tlb)->mm, pmdp)

#define pud_free_tlb(tlb, pudp, addr)	pud_free((tlb)->mm, pudp)

arch/um/include/asm/tlb.h

+12 −0
Original line number Diff line number Diff line
@@ -110,12 +110,24 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) 
	__tlb_remove_page(tlb, page);

}



static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,

					  struct page *page, int page_size)

{

	return __tlb_remove_page(tlb, page);

}



static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb,

					 struct page *page)

{

	return __tlb_remove_page(tlb, page);

}



static inline void tlb_remove_page_size(struct mmu_gather *tlb,

					struct page *page, int page_size)

{

	return tlb_remove_page(tlb, page);

}



/**

 * tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation.

 *

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