From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 4 Jan 2021 19:44:16 +0000 (-0500)
Subject: binfmt_elf: Remove vma linked list walk
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=69d0cdb1f7e159e6e733bea4d4d8ea2a48439161;p=users%2Fjedix%2Flinux-maple.git

binfmt_elf: Remove vma linked list walk

Use the VMA iterator instead.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index f8c7f26f1fbb3..d41cca755ff9f 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1622,6 +1622,7 @@ static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
 static int fill_files_note(struct memelfnote *note)
 {
 	struct mm_struct *mm = current->mm;
+	VMA_ITERATOR(vmi, mm, 0);
 	struct vm_area_struct *vma;
 	unsigned count, size, names_ofs, remaining, n;
 	user_long_t *data;
@@ -1651,7 +1652,7 @@ static int fill_files_note(struct memelfnote *note)
 	name_base = name_curpos = ((char *)data) + names_ofs;
 	remaining = size - names_ofs;
 	count = 0;
-	for (vma = mm->mmap; vma != NULL; vma = vma->vm_next) {
+	for_each_vma(vmi, vma) {
 		struct file *file;
 		const char *filename;