Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Kairui Song <> | Subject | [RFC PATCH 5/7] mm: try use fast path for pmd setting as well | Date | Fri, 29 Jul 2022 04:45:09 +0800 |
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From: Kairui Song <kasong@tencent.com>
Use the per-CPU RSS cache helper as much as possible.
Signed-off-by: Kairui Song <kasong@tencent.com> --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memory.c b/mm/memory.c index f00f302143b6..09d7d193da51 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4419,7 +4419,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) if (write) entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma); - add_mm_counter(vma->vm_mm, mm_counter_file(page), HPAGE_PMD_NR); + add_mm_counter_fast(vma->vm_mm, mm_counter_file(page), HPAGE_PMD_NR); page_add_file_rmap(page, vma, true); /* -- 2.35.2
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