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From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH v5 32/70] parisc: Remove mmap linked list from cache handling
Thread-Topic: [PATCH v5 32/70] parisc: Remove mmap linked list from cache
 handling
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Date:   Wed, 2 Feb 2022 02:42:12 +0000
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From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>

Use the VMA iterator instead.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
 arch/parisc/kernel/cache.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 94150b91c96f..c3a8d29b6f9f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -519,9 +519,11 @@ static inline unsigned long mm_total_size(struct mm_st=
ruct *mm)
 {
 	struct vm_area_struct *vma;
 	unsigned long usize =3D 0;
+	VMA_ITERATOR(vmi, mm, 0);
=20
-	for (vma =3D mm->mmap; vma; vma =3D vma->vm_next)
+	for_each_vma(vmi, vma)
 		usize +=3D vma->vm_end - vma->vm_start;
+
 	return usize;
 }
=20
@@ -570,6 +572,7 @@ static void flush_user_cache_tlb(struct vm_area_struct =
*vma,
 void flush_cache_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *vma;
+	VMA_ITERATOR(vmi, mm, 0);
=20
 	/* Flushing the whole cache on each cpu takes forever on
 	   rp3440, etc.  So, avoid it if the mm isn't too big.  */
@@ -583,13 +586,13 @@ void flush_cache_mm(struct mm_struct *mm)
=20
 	preempt_disable();
 	if (mm->context =3D=3D mfsp(3)) {
-		for (vma =3D mm->mmap; vma; vma =3D vma->vm_next)
+		for_each_vma(vmi, vma)
 			flush_user_cache_tlb(vma, vma->vm_start, vma->vm_end);
 		preempt_enable();
 		return;
 	}
=20
-	for (vma =3D mm->mmap; vma; vma =3D vma->vm_next)
+	for_each_vma(vmi, vma)
 		flush_cache_pages(vma, mm, vma->vm_start, vma->vm_end);
 	preempt_enable();
 }
--=20
2.34.1