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| author | Alistair Popple <apopple@nvidia.com> | 2022-09-02 10:35:52 +1000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-09-11 16:22:30 -0700 |
| commit | a3589e1d5fe39c3d9fdd291b111524b93d08bc32 (patch) | |
| tree | 7a179c6da1e39c32451d26e09984fa1644de7532 /mm/migrate_device.c | |
| parent | 60bae73708963de4a17231077285bd9ff2f41c44 (diff) | |
| download | linux-a3589e1d5fe39c3d9fdd291b111524b93d08bc32.tar.bz2 | |
mm/migrate_device.c: add missing flush_cache_page()
Currently we only call flush_cache_page() for the anon_exclusive case,
however in both cases we clear the pte so should flush the cache.
Link: https://lkml.kernel.org/r/5676f30436ab71d1a587ac73f835ed8bd2113ff5.1662078528.git-series.apopple@nvidia.com
Fixes: 8c3328f1f36a ("mm/migrate: migrate_vma() unmap page from vma while collecting pages")
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: huang ying <huang.ying.caritas@gmail.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/migrate_device.c')
| -rw-r--r-- | mm/migrate_device.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/migrate_device.c b/mm/migrate_device.c index 6a5ef9f0da6a..4cc849c3b54c 100644 --- a/mm/migrate_device.c +++ b/mm/migrate_device.c @@ -193,9 +193,9 @@ again: bool anon_exclusive; pte_t swp_pte; + flush_cache_page(vma, addr, pte_pfn(*ptep)); anon_exclusive = PageAnon(page) && PageAnonExclusive(page); if (anon_exclusive) { - flush_cache_page(vma, addr, pte_pfn(*ptep)); ptep_clear_flush(vma, addr, ptep); if (page_try_share_anon_rmap(page)) { |