diff options
Diffstat (limited to 'mm/mprotect.c')
| -rw-r--r-- | mm/mprotect.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c index 1b9198d38cdf..45a87f0ce625 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -542,6 +542,7 @@ static const struct mm_walk_ops prot_none_walk_ops = { .pte_entry = prot_none_pte_entry, .hugetlb_entry = prot_none_hugetlb_entry, .test_walk = prot_none_test, + .walk_lock = PGWALK_WRLOCK, }; int @@ -630,6 +631,7 @@ success: * vm_flags and vm_page_prot are protected by the mmap_lock * held in write mode. */ + vma_start_write(vma); vm_flags_reset(vma, newflags); /* * We want to check manually if we can change individual PTEs writable |