x86: add tizen_qemu_x86_defconfig & tizen_qemu_x86_64_defconfig

[platform/kernel/linux-rpi.git] / mm / ptdump.c

diff --git a/mm/ptdump.c b/mm/ptdump.c
index da75144..f84ea70 100644 (file)
--- a/mm/ptdump.c
+++ b/mm/ptdump.c
@@ -144,13 +144,13 @@ 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);