Messages in this thread | | | Date | Wed, 21 Feb 2024 03:36:46 +0000 | From | Matthew Wilcox <> | Subject | Re: [PATCH 1/3] mm/memory: Change vmf_anon_prepare() to be non-static |
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On Tue, Feb 20, 2024 at 03:14:22PM -0800, Vishal Moola (Oracle) wrote: > In order to handle hugetlb faults under the VMA lock, hugetlb can use > vmf_anon_prepare() to ensure we can safely prepare an anon_vma. Change > it to be a non-static function so it can be used within hugetlb as well.
I think the prototype for this should probably live in mm/internal.h?
> +++ b/include/linux/hugetlb.h > @@ -272,6 +272,7 @@ void hugetlb_vma_unlock_write(struct vm_area_struct *vma); > int hugetlb_vma_trylock_write(struct vm_area_struct *vma); > void hugetlb_vma_assert_locked(struct vm_area_struct *vma); > void hugetlb_vma_lock_release(struct kref *kref); > +vm_fault_t vmf_anon_prepare(struct vm_fault *vmf); > > int pmd_huge(pmd_t pmd); > int pud_huge(pud_t pud); >
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