From 4acb2b9560cd8f374adba028c63c7dc6736e9114 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Mon, 4 Jan 2021 14:54:07 -0500 Subject: [PATCH] kernel/sched/fair: Use maple tree iterators instead of linked list Signed-off-by: Liam R. Howlett --- kernel/sched/fair.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 04a3ce20da67..d0f7b7543a16 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2734,6 +2734,7 @@ static void task_numa_work(struct callback_head *work) unsigned long start, end; unsigned long nr_pte_updates = 0; long pages, virtpages; + MA_STATE(mas, &mm->mm_mt, 0, 0); SCHED_WARN_ON(p != container_of(work, struct task_struct, numa_work)); @@ -2786,13 +2787,16 @@ static void task_numa_work(struct callback_head *work) if (!mmap_read_trylock(mm)) return; - vma = find_vma(mm, start); + + mas_set(&mas, start); + vma = mas_walk(&mas); if (!vma) { reset_ptenuma_scan(p); start = 0; - vma = mm->mmap; + mas_set(&mas, start); } - for (; vma; vma = vma->vm_next) { + + mas_for_each(&mas, vma, ULONG_MAX) { if (!vma_migratable(vma) || !vma_policy_mof(vma) || is_vm_hugetlb_page(vma) || (vma->vm_flags & VM_MIXEDMAP)) { continue; -- 2.49.0