diff options
Diffstat (limited to 'drivers/xen/balloon.c')
| -rw-r--r-- | drivers/xen/balloon.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index e12bb256036f..fdfc64f5acea 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -44,7 +44,7 @@ #include <linux/cred.h> #include <linux/errno.h> #include <linux/mm.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/pagemap.h> #include <linux/highmem.h> #include <linux/mutex.h> @@ -395,7 +395,10 @@ static enum bp_state reserve_additional_memory(void) * callers drop the mutex before trying again. */ mutex_unlock(&balloon_mutex); + /* add_memory_resource() requires the device_hotplug lock */ + lock_device_hotplug(); rc = add_memory_resource(nid, resource, memhp_auto_online); + unlock_device_hotplug(); mutex_lock(&balloon_mutex); if (rc) { |