diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-11-06 06:39:45 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-11-06 06:39:45 +0100 |
| commit | 97c53b402fcadb50201c23914f614bf8430d9c20 (patch) | |
| tree | 3c9b94e866d150c3a2d8ac853e388c38fade8b45 /mm/mprotect.c | |
| parent | 6a716c90a51338009c3bc1f460829afaed8f922d (diff) | |
| parent | 5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52 (diff) | |
Merge tag 'v3.12' into core/locking to pick up mutex upates
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/mprotect.c')
| -rw-r--r-- | mm/mprotect.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c index 94722a4d6b4..412ba2b7326 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -94,13 +94,16 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd, swp_entry_t entry = pte_to_swp_entry(oldpte); if (is_write_migration_entry(entry)) { + pte_t newpte; /* * A protection check is difficult so * just be safe and disable write */ make_migration_entry_read(&entry); - set_pte_at(mm, addr, pte, - swp_entry_to_pte(entry)); + newpte = swp_entry_to_pte(entry); + if (pte_swp_soft_dirty(oldpte)) + newpte = pte_swp_mksoft_dirty(newpte); + set_pte_at(mm, addr, pte, newpte); } pages++; } @@ -145,7 +148,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, split_huge_page_pmd(vma, addr, pmd); else if (change_huge_pmd(vma, pmd, addr, newprot, prot_numa)) { - pages += HPAGE_PMD_NR; + pages++; continue; } /* fall through */ |