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| author | Hugh Dickins <hughd@google.com> | 2021-06-24 18:39:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-24 19:40:53 -0700 |
| commit | 474466301dfd8b39a10c01db740645f3f7ae9a28 (patch) | |
| tree | a10d26aa505e881bda6ef59d84c05393ec2e3da3 /mm/page_vma_mapped.c | |
| parent | b3807a91aca7d21c05d5790612e49969117a72b9 (diff) | |
| download | lwn-474466301dfd8b39a10c01db740645f3f7ae9a28.tar.gz lwn-474466301dfd8b39a10c01db740645f3f7ae9a28.zip | |
mm: page_vma_mapped_walk(): use goto instead of while (1)
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.
Link: https://lkml.kernel.org/r/a52b234a-851-3616-2525-f42736e8934@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Wang Yugui <wangyugui@e16-tech.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_vma_mapped.c')
| -rw-r--r-- | mm/page_vma_mapped.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c index 5b5832d06338..6b9320340f1b 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; @@ -233,10 +234,7 @@ restart: } if (!map_pte(pvmw)) goto next_pte; - } - while (1) { - unsigned long end; - +this_pte: if (check_pte(pvmw)) return true; next_pte: @@ -265,6 +263,7 @@ next_pte: pvmw->ptl = pte_lockptr(mm, pvmw->pmd); spin_lock(pvmw->ptl); } + goto this_pte; } } |