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Subject[PATCH 12/15] Clear numa on mprotect
Date
---
mm/huge_memory.c | 2 ++
mm/mprotect.c | 2 ++
2 files changed, 4 insertions(+)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 98b6a79..fa277fa 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1484,6 +1484,8 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,

if (!prot_numa) {
entry = pmdp_get_and_clear(mm, addr, pmd);
+ if (pmd_numa(entry))
+ entry = pmd_mknonnuma(entry);
entry = pmd_modify(entry, newprot);
BUG_ON(pmd_write(entry));
set_pmd_at(mm, addr, pmd, entry);
diff --git a/mm/mprotect.c b/mm/mprotect.c
index c53e332..510f138 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -54,6 +54,8 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,

if (!prot_numa) {
ptent = ptep_modify_prot_start(mm, addr, pte);
+ if (pte_numa(ptent))
+ ptent = pte_mknonnuma(ptent);
ptent = pte_modify(ptent, newprot);
updated = true;
} else {
--
1.8.4


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