From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:25:19 +0000 (-0500)
Subject: parisc: Remove mmap linked list from cache handling
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=31d4dc0e6f43f4488081253bff71e96970a5ae04;p=users%2Fjedix%2Flinux-maple.git

parisc: Remove mmap linked list from cache handling

Use the VMA iterator instead.

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

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 39e02227e231..50e94d44a963 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_struct *mm)
 {
 	struct vm_area_struct *vma;
 	unsigned long usize = 0;
+	VMA_ITERATOR(vmi, mm, 0);
 
-	for (vma = mm->mmap; vma; vma = vma->vm_next)
+	for_each_vma(vmi, vma)
 		usize += vma->vm_end - vma->vm_start;
+
 	return usize;
 }
 
@@ -547,6 +549,7 @@ void flush_cache_mm(struct mm_struct *mm)
 {
 	struct vm_area_struct *vma;
 	pgd_t *pgd;
+	VMA_ITERATOR(vmi, mm, 0);
 
 	/* Flushing the whole cache on each cpu takes forever on
 	   rp3440, etc.  So, avoid it if the mm isn't too big.  */
@@ -559,7 +562,7 @@ void flush_cache_mm(struct mm_struct *mm)
 	}
 
 	if (mm->context == mfsp(3)) {
-		for (vma = mm->mmap; vma; vma = vma->vm_next) {
+		for_each_vma(vmi, vma) {
 			flush_user_dcache_range_asm(vma->vm_start, vma->vm_end);
 			if (vma->vm_flags & VM_EXEC)
 				flush_user_icache_range_asm(vma->vm_start, vma->vm_end);
@@ -569,7 +572,7 @@ void flush_cache_mm(struct mm_struct *mm)
 	}
 
 	pgd = mm->pgd;
-	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+	for_each_vma(vmi, vma) {
 		unsigned long addr;
 
 		for (addr = vma->vm_start; addr < vma->vm_end;