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Message-Id: <20250305181611.54484-14-sj@kernel.org> Date: Wed, 5 Mar 2025 10:16:08 -0800 From: SeongJae Park <sj@...nel.org> To: Cc: SeongJae Park <sj@...nel.org>, "Liam R. Howlett" <howlett@...il.com>, Andrew Morton <akpm@...ux-foundation.org>, David Hildenbrand <david@...hat.com>, Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Shakeel Butt <shakeel.butt@...ux.dev>, Vlastimil Babka <vbabka@...e.cz>, kernel-team@...a.com, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: [RFC PATCH 13/16] mm/madvise: batch tlb flushes for process_madvise(MADV_FREE) MADV_FREE internal logic can be invoked with batching tlb flushes. Update vector_madvise(), which is called for process_madvise(), to use that in the efficient way, by passing an mmu_gather object that it initializes before starting the work, and flushing the tlb entries at once after all the internal works are done. Signed-off-by: SeongJae Park <sj@...nel.org> --- mm/madvise.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/madvise.c b/mm/madvise.c index efa4184d6cf5..f1beadb6176a 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -968,7 +968,8 @@ static long madvise_dontneed_free(struct vm_area_struct *vma, return madvise_dontneed_single_vma( madv_behavior->tlb, vma, start, end); else if (behavior == MADV_FREE) - return madvise_free_single_vma(NULL, vma, start, end); + return madvise_free_single_vma( + madv_behavior->tlb, vma, start, end); else return -EINVAL; } -- 2.39.5
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