[PATCH v2 49/70] kernel/events/uprobes: Use maple tree iterators instead of linked list

[Liam R. Howlett]

Signed-off-by: Liam R. Howlett <liam.howl...@oracle.com>
---
 kernel/events/uprobes.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 00b0358739ab3..b0aa05be2a61d 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -356,8 +356,9 @@ static struct vm_area_struct *
 find_ref_ctr_vma(struct uprobe *uprobe, struct mm_struct *mm)
 {
        struct vm_area_struct *tmp;
+       MA_STATE(mas, &mm->mm_mt, 0, 0);
 
-       for (tmp = mm->mmap; tmp; tmp = tmp->vm_next)
+       mas_for_each(&mas, tmp, ULONG_MAX)
                if (valid_ref_ctr_vma(uprobe, tmp))
                        return tmp;
 
@@ -1239,9 +1240,10 @@ static int unapply_uprobe(struct uprobe *uprobe, struct 
mm_struct *mm)
 {
        struct vm_area_struct *vma;
        int err = 0;
+       MA_STATE(mas, &mm->mm_mt, 0, 0);
 
        mmap_read_lock(mm);
-       for (vma = mm->mmap; vma; vma = vma->vm_next) {
+       mas_for_each(&mas, vma, ULONG_MAX) {
                unsigned long vaddr;
                loff_t offset;
 
@@ -1990,8 +1992,9 @@ bool uprobe_deny_signal(void)
 static void mmf_recalc_uprobes(struct mm_struct *mm)
 {
        struct vm_area_struct *vma;
+       MA_STATE(mas, &mm->mm_mt, 0, 0);
 
-       for (vma = mm->mmap; vma; vma = vma->vm_next) {
+       mas_for_each(&mas, vma, ULONG_MAX) {
                if (!valid_vma(vma, false))
                        continue;
                /*
-- 
2.28.0