diff options
Diffstat (limited to 'arch/s390/mm/dump_pagetables.c')
| -rw-r--r-- | arch/s390/mm/dump_pagetables.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c index 3c5e4055a3d2..09c7179cb17d 100644 --- a/arch/s390/mm/dump_pagetables.c +++ b/arch/s390/mm/dump_pagetables.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/set_memory.h> #include <linux/ptdump.h> #include <linux/seq_file.h> #include <linux/debugfs.h> @@ -130,7 +131,9 @@ static int ptdump_show(struct seq_file *m, void *v) }; get_online_mems(); + mutex_lock(&cpa_mutex); ptdump_walk_pgd(&st.ptdump, &init_mm, NULL); + mutex_unlock(&cpa_mutex); put_online_mems(); return 0; } |