linux-kernel - [PATCH v2 30/70] arch/powerpc: Remove mmap linked list from mm/book2s32/tlb

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Message-Id: <20210112161240.2024684-31-Liam.Howlett@Oracle.com>
Date:   Tue, 12 Jan 2021 11:12:00 -0500
From:   "Liam R. Howlett" <Liam.Howlett@...cle.com>
To:     maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...gle.com>, Song Liu <songliubraving@...com>,
        Davidlohr Bueso <dave@...olabs.net>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Jerome Glisse <jglisse@...hat.com>,
        David Rientjes <rientjes@...gle.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Rik van Riel <riel@...riel.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH v2 30/70] arch/powerpc: Remove mmap linked list from mm/book2s32/tlb

Start using the maple tree

Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 arch/powerpc/mm/book3s32/tlb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/book3s32/tlb.c b/arch/powerpc/mm/book3s32/tlb.c
index b6c7427daa6fe..be595b36dc4cd 100644
--- a/arch/powerpc/mm/book3s32/tlb.c
+++ b/arch/powerpc/mm/book3s32/tlb.c
@@ -121,6 +121,7 @@ EXPORT_SYMBOL(flush_tlb_kernel_range);
 void flush_tlb_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *mp;
+	MA_STATE(mas, &mm->mm_mt, 0, 0);
 
 	if (!Hash) {
 		_tlbia();
@@ -133,7 +134,7 @@ void 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)
+	mas_for_each(&mas, mp, ULONG_MAX)
 		flush_range(mp->vm_mm, mp->vm_start, mp->vm_end);
 }
 EXPORT_SYMBOL(flush_tlb_mm);
-- 
2.28.0