fs/proc/base: use the vma iterators in place of linked list

Use the vma iterator instead of a for loop across the linked list.  The
link list of vmas will be removed in this patch set.

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

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 93f7e3d971e4bbc758165ac09710945a50975af3..12885a75913f5f4fe6849fdc932b7d6f3f12f13a 100644 (file)
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2350,6 +2350,7 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
        GENRADIX(struct map_files_info) fa;
        struct map_files_info *p;
        int ret;
+       struct vma_iterator vmi;
 
        genradix_init(&fa);
 
@@ -2388,7 +2389,9 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
         * routine might require mmap_lock taken in might_fault().
         */
 
-       for (vma = mm->mmap, pos = 2; vma; vma = vma->vm_next) {
+       pos = 2;
+       vma_iter_init(&vmi, mm, 0);
+       for_each_vma(vmi, vma) {
                if (!vma->vm_file)
                        continue;
                if (++pos <= ctx->pos)