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| author | Punit Agrawal <punit.agrawal@arm.com> | 2017-08-22 11:42:47 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-08-22 17:47:11 +0100 |
| commit | a8d623eefd780288c0299f517da0845da687fbfc (patch) | |
| tree | c4d91aa65923ab908f4e56459816ebee2607a9a5 /arch/arm64 | |
| parent | c3e4ed5c3d5d79af940eb24c810dddcec6d2b536 (diff) | |
| download | linux-a8d623eefd780288c0299f517da0845da687fbfc.tar.bz2 | |
arm64: hugetlb: Override set_huge_swap_pte_at() to support contiguous hugepages
The default implementation of set_huge_swap_pte_at() does not support
hugepages consisting of contiguous ptes. Override it to add support for
contiguous hugepages.
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Cc: David Woods <dwoods@mellanox.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/hugetlb.h | 3 | ||||
| -rw-r--r-- | arch/arm64/mm/hugetlbpage.c | 12 |
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h index df8c0aea0917..1dca41bea16a 100644 --- a/arch/arm64/include/asm/hugetlb.h +++ b/arch/arm64/include/asm/hugetlb.h @@ -84,6 +84,9 @@ extern void huge_ptep_clear_flush(struct vm_area_struct *vma, extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned long sz); #define huge_pte_clear huge_pte_clear +extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned long sz); +#define set_huge_swap_pte_at set_huge_swap_pte_at #include <asm-generic/hugetlb.h> diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index 035c121c675b..76915b736b17 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -188,6 +188,18 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, } } +void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned long sz) +{ + int i, ncontig; + size_t pgsize; + + ncontig = num_contig_ptes(sz, &pgsize); + + for (i = 0; i < ncontig; i++, ptep++) + set_pte(ptep, pte); +} + pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz) { |