[PATCH 08/11] mm: page_vma_mapped_walk(): use goto instead of while (1)

Hugh Dickins
2021-06-10T06:48:32Z

page_vma_mapped_walk() cleanup: add a label this_pte, matching next_pte,
and use "goto this_pte", in place of the "while (1)" loop at the end.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
---
mm/page_vma_mapped.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c
index 0840079ef7d2..006f4814abbc 100644
--- a/mm/page_vma_mapped.c
+++ b/mm/page_vma_mapped.c
@@ -144,6 +144,7 @@ bool page_vma_mapped_walk(struct page_vma_mapped_walk *pvmw)
{
struct mm_struct *mm = pvmw->vma->vm_mm;
struct page *page = pvmw->page;
+ unsigned long end;
pgd_t *pgd;
p4d_t *p4d;
pud_t *pud;
@@ -234,10 +235,7 @@ bool page_vma_mapped_walk(struct page_vma_mapped_walk *pvmw)
}
if (!map_pte(pvmw))
goto next_pte;
- }
- while (1) {
- unsigned long end;
-
+this_pte:
if (check_pte(pvmw))
return true;
next_pte:
@@ -266,6 +264,7 @@ bool page_vma_mapped_walk(struct page_vma_mapped_walk *pvmw)
pvmw->ptl = pte_lockptr(mm, pvmw->pmd);
spin_lock(pvmw->ptl);
}
+ goto this_pte;
}
}

--
2.26.2