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authorDavid S. Miller <davem@davemloft.net>2014-10-08 22:22:22 +0200
committerDavid S. Miller <davem@davemloft.net>2014-10-08 22:22:22 +0200
commit64b1f00a0830e1c53874067273a096b228d83d36 (patch)
treedd547b0f1d431d0995b8eaa711cedb92399f31fe /mm/migrate.c
parentnetlabel: directly return netlbl_unlabel_genl_init() (diff)
parentnet_sched: copy exts->type in tcf_exts_change() (diff)
downloadlinux-64b1f00a0830e1c53874067273a096b228d83d36.tar.xz
linux-64b1f00a0830e1c53874067273a096b228d83d36.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index f78ec9bd454d..2740360cd216 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -146,8 +146,11 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
if (pte_swp_soft_dirty(*ptep))
pte = pte_mksoft_dirty(pte);
+
+ /* Recheck VMA as permissions can change since migration started */
if (is_write_migration_entry(entry))
- pte = pte_mkwrite(pte);
+ pte = maybe_mkwrite(pte, vma);
+
#ifdef CONFIG_HUGETLB_PAGE
if (PageHuge(new)) {
pte = pte_mkhuge(pte);