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authorIngo Molnar <mingo@kernel.org>2016-02-29 09:42:07 +0100
committerIngo Molnar <mingo@kernel.org>2016-02-29 09:42:07 +0100
commit6aa447bcbb444cd1b738613a20627f288d631665 (patch)
tree62030bb14be0006248181305ac1fe377a99e5b65 /mm/mprotect.c
parentabedf8e2419fb873d919dd74de2e84b510259339 (diff)
parent48be3a67da7413d62e5efbcf2c73a9dddf61fb96 (diff)
downloadlinux-6aa447bcbb444cd1b738613a20627f288d631665.tar.bz2
Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/mprotect.c')
-rw-r--r--mm/mprotect.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 8eb7bb40dc40..f7cb3d4d9c2e 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -160,9 +160,11 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
}
if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd)) {
- if (next - addr != HPAGE_PMD_SIZE)
+ if (next - addr != HPAGE_PMD_SIZE) {
split_huge_pmd(vma, pmd, addr);
- else {
+ if (pmd_none(*pmd))
+ continue;
+ } else {
int nr_ptes = change_huge_pmd(vma, pmd, addr,
newprot, prot_numa);