From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:25:54 +0000 (-0500)
Subject: arch/powerpc: Remove mmap linked list from mm/book2s32/tlb
X-Git-Tag: howlett/maple_spf/20210104~40
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=5548550f9ed9addc7be874f35a030989dfd720b1;p=users%2Fjedix%2Flinux-maple.git

arch/powerpc: Remove mmap linked list from mm/book2s32/tlb

Start using the maple tree

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/arch/powerpc/mm/book3s32/tlb.c b/arch/powerpc/mm/book3s32/tlb.c
index 19f0ef950d77..0ba965c48f9d 100644
--- a/arch/powerpc/mm/book3s32/tlb.c
+++ b/arch/powerpc/mm/book3s32/tlb.c
@@ -81,6 +81,7 @@ EXPORT_SYMBOL(hash__flush_range);
 void hash__flush_tlb_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *mp;
+	MA_STATE(mas, &mm->mm_mt, 0, 0);
 
 	/*
 	 * It is safe to go down the mm's list of vmas when called
@@ -88,8 +89,8 @@ void hash__flush_tlb_mm(struct mm_struct *mm)
 	 * unmap_region or exit_mmap, but not from vmtruncate on SMP -
 	 * but it seems dup_mmap is the only SMP case which gets here.
 	 */
-	for (mp = mm->mmap; mp != NULL; mp = mp->vm_next)
-		hash__flush_range(mp->vm_mm, mp->vm_start, mp->vm_end);
+	mas_for_each(&mas, mp, -1)
+		flush_range(mp->vm_mm, mp->vm_start, mp->vm_end);
 }
 EXPORT_SYMBOL(hash__flush_tlb_mm);