[PATCH v2 09/70] mm/mmap: Change find_vma_prev() to use maple tree
Randy Dunlap
rdunlap at infradead.org
Tue Jan 12 16:03:03 EST 2021
Please see kernel-doc fixes below:
On 1/12/21 8:11 AM, Liam R. Howlett wrote:
> Change the implementation of find_vma_prev to use the new maple tree
> data structure.
>
> Signed-off-by: Liam R. Howlett <Liam.Howlett at Oracle.com>
> ---
> mm/mmap.c | 27 +++++++++++++++++----------
> 1 file changed, 17 insertions(+), 10 deletions(-)
>
> diff --git a/mm/mmap.c b/mm/mmap.c
> index ab1cb0efc4c65..f123f9c97dfe8 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -2500,23 +2500,30 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
> }
> EXPORT_SYMBOL(find_vma);
>
> -/*
> - * Same as find_vma, but also return a pointer to the previous VMA in *pprev.
> +/**
> + * find_vma_prev() - Find the VMA for a given address, or the next vma and
> + * sets %pprev to the previous VMA, if any.
* set @pprev
> + * @mm The mm_struct to check
* @mm: ...
> + * @addr: The address
> + * @pprev: The pointer to set to the previous VMA
> + *
> + * Returns: The VMA associated with @addr, or the next vma.
> + * May return NULL in the case of no vma at addr or above.
%NULL
> */
> struct vm_area_struct *
> find_vma_prev(struct mm_struct *mm, unsigned long addr,
thanks.
--
~Randy
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