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| author | Tony Lu <zlu@tilera.com> | 2013-02-04 14:28:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-05 20:38:47 +1100 |
| commit | be7517d6ab9722f0abad6ba5ffd39cfced95549c (patch) | |
| tree | 1896ef01225f2150cb6d8a32893cb4326e954974 /mm/migrate.c | |
| parent | 3bdf8cd3226fe11f26ce32bbb4c5e381cf807c89 (diff) | |
| download | linux-be7517d6ab9722f0abad6ba5ffd39cfced95549c.tar.gz linux-be7517d6ab9722f0abad6ba5ffd39cfced95549c.tar.bz2 linux-be7517d6ab9722f0abad6ba5ffd39cfced95549c.zip | |
mm/hugetlb: set PTE as huge in hugetlb_change_protection and remove_migration_pte
When setting a huge PTE, besides calling pte_mkhuge(), we also need to
call arch_make_huge_pte(), which we indeed do in make_huge_pte(), but we
forget to do in hugetlb_change_protection() and remove_migration_pte().
Signed-off-by: Zhigang Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Hillf Danton <dhillf@gmail.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/migrate.c')
| -rw-r--r-- | mm/migrate.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index c38778610aa8..2fd8b4af4744 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -160,8 +160,10 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma, if (is_write_migration_entry(entry)) pte = pte_mkwrite(pte); #ifdef CONFIG_HUGETLB_PAGE - if (PageHuge(new)) + if (PageHuge(new)) { pte = pte_mkhuge(pte); + pte = arch_make_huge_pte(pte, vma, new, 0); + } #endif flush_cache_page(vma, addr, pte_pfn(pte)); set_pte_at(mm, addr, ptep, pte); |