Re: [PATCH RFC] mm: madvise: use walk_page_range_vma() for madvise_free_single_vma()

[Oscar Salvador]

On Tue, Jun 03, 2025 at 01:31:54PM +1200, Barry Song wrote:
> From: Barry Song <v-songbaohua@xxxxxxxx>
> 
> We've already found the VMA before calling madvise_free_single_vma(),
> so calling walk_page_range() and doing find_vma() again seems
> unnecessary. It also prevents potential optimizations for MADV_FREE
> to use a per-VMA lock.
> 
> Cc: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
> Cc: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
> Cc: David Hildenbrand <david@xxxxxxxxxx>
> Cc: Vlastimil Babka <vbabka@xxxxxxx>
> Cc: Jann Horn <jannh@xxxxxxxxxx>
> Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx>
> Cc: Lokesh Gidra <lokeshgidra@xxxxxxxxxx>
> Cc: Tangquan Zheng <zhengtangquan@xxxxxxxx>
> Signed-off-by: Barry Song <v-songbaohua@xxxxxxxx>

Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>


-- 
Oscar Salvador
SUSE Labs