Commit 5f14b924 authored by Liam R. Howlett's avatar Liam R. Howlett Committed by Andrew Morton
Browse files

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.

Link: https://lkml.kernel.org/r/20220906194824.2110408-43-Liam.Howlett@oracle.com


Signed-off-by: default avatarLiam R. Howlett <Liam.Howlett@Oracle.com>
Tested-by: default avatarYu Zhao <yuzhao@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 19066e58

fs/proc/base.c

+4 −1
Original line number Diff line number Diff line
@@ -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)