diff options
| author | Hugh Dickins <hughd@google.com> | 2023-06-09 04:21:41 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-20 02:19:14 +0300 |
| commit | 0d1c81edc61e553ed7a5db18fb8074c8b78e1538 (patch) | |
| tree | 1b62db43a42ff896ec4c332df1675fec6f65ca60 /mm/vmalloc.c | |
| parent | e5ad581c7f1c32d309ae4e895eea0cd1a3d9f363 (diff) | |
| download | linux-0d1c81edc61e553ed7a5db18fb8074c8b78e1538.tar.xz | |
mm/vmalloc: vmalloc_to_page() use pte_offset_kernel()
vmalloc_to_page() was using pte_offset_map() (followed by pte_unmap()),
but it's intended for userspace page tables: prefer pte_offset_kernel().
Link: https://lkml.kernel.org/r/696386a-84f8-b33c-82e5-f865ed6eb39@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Song Liu <song@kernel.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zack Rusin <zackr@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index d07d0140ebd3..7382e0a60ce1 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -703,11 +703,10 @@ struct page *vmalloc_to_page(const void *vmalloc_addr) if (WARN_ON_ONCE(pmd_bad(*pmd))) return NULL; - ptep = pte_offset_map(pmd, addr); + ptep = pte_offset_kernel(pmd, addr); pte = *ptep; if (pte_present(pte)) page = pte_page(pte); - pte_unmap(ptep); return page; } |