X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Fptdump.c;h=f84ea700662fc895d221f5f829aaa5f76505ef66;hb=refs%2Fheads%2Fsandbox%2Fm.szyprowski%2Fvirgl;hp=da751448d0e4ef219717294882df9bfb33a66174;hpb=27787ba3fa4904422b3928b898d1bd3d74d98bea;p=platform%2Fkernel%2Flinux-rpi.git

diff --git a/mm/ptdump.c b/mm/ptdump.c
index da75144..f84ea70 100644
--- 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);