Commit 208c09db authored by Liam R. Howlett's avatar Liam R. Howlett Committed by Andrew Morton
Browse files

mm/swapfile: use vma iterator instead of vma linked list 

unuse_mm() no longer needs to reference the linked list.

Link: https://lkml.kernel.org/r/20220906194824.2110408-64-Liam.Howlett@oracle.com


Signed-off-by: default avatarLiam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Reviewed-by: default avatarDavidlohr Bueso <dave@stgolabs.net>
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: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 9ec08f30

mm/swapfile.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -1994,14 +1994,16 @@ static int unuse_mm(struct mm_struct *mm, unsigned int type) 
{

{

	struct vm_area_struct *vma;

	struct vm_area_struct *vma;

	int ret = 0;

	int ret = 0;

	VMA_ITERATOR(vmi, mm, 0);





	mmap_read_lock(mm);

	mmap_read_lock(mm);

	for (vma = mm->mmap; vma; vma = vma->vm_next) {

	for_each_vma(vmi, vma) {

		if (vma->anon_vma) {

		if (vma->anon_vma) {

			ret = unuse_vma(vma, type);

			ret = unuse_vma(vma, type);

			if (ret)

			if (ret)

				break;

				break;

		}

		}



		cond_resched();

		cond_resched();

	}

	}

	mmap_read_unlock(mm);

	mmap_read_unlock(mm);