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Code Issues Releases Wiki Activity

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: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Tested-by: Yu 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: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett 2022-09-06 19:49:04 +00:00 committed by Andrew Morton
parent 9ec08f30f8
commit 208c09db6d
1 changed files with 3 additions and 1 deletions
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4
mm/swapfile.c
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@ -1994,14 +1994,16 @@ static int unuse_mm(struct mm_struct *mm, unsigned int type)
{
struct vm_area_struct *vma;
int ret = 0;
VMA_ITERATOR(vmi, mm, 0);
mmap_read_lock(mm);
for (vma = mm->mmap; vma; vma = vma->vm_next) {
for_each_vma(vmi, vma) {
if (vma->anon_vma) {
ret = unuse_vma(vma, type);
if (ret)
break;
}
cond_resched();
}
mmap_read_unlock(mm);