summaryrefslogtreecommitdiff
path: root/mm/ptdump.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/ptdump.c')
-rw-r--r--mm/ptdump.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/ptdump.c b/mm/ptdump.c
index eea3d28d173c..8adab455a68b 100644
--- a/mm/ptdump.c
+++ b/mm/ptdump.c
@@ -152,13 +152,13 @@ void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd)
{
const struct ptdump_range *range = st->range;
- mmap_read_lock(mm);
+ mmap_write_lock(mm);
while (range->start != range->end) {
walk_page_range_novma(mm, range->start, range->end,
&ptdump_ops, pgd, st);
range++;
}
- mmap_read_unlock(mm);
+ mmap_write_unlock(mm);
/* Flush out the last page */
st->note_page(st, 0, -1, 0);