summaryrefslogtreecommitdiff
path: root/mm/vmalloc.c
diff options
context:
space:
mode:
authorHugh Dickins <hughd@google.com>2023-06-09 04:21:41 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-06-20 02:19:14 +0300
commit0d1c81edc61e553ed7a5db18fb8074c8b78e1538 (patch)
tree1b62db43a42ff896ec4c332df1675fec6f65ca60 /mm/vmalloc.c
parente5ad581c7f1c32d309ae4e895eea0cd1a3d9f363 (diff)
downloadlinux-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.c3
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;
}