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-rw-r--r--drivers/vhost/vhost.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index a4ac369..a9fe859 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -30,8 +30,12 @@
#include "vhost.h"
+static ushort max_mem_regions = 64;
+module_param(max_mem_regions, ushort, 0444);
+MODULE_PARM_DESC(max_mem_regions,
+ "Maximum number of memory regions in memory map. (default: 64)");
+
enum {
- VHOST_MEMORY_MAX_NREGIONS = 64,
VHOST_MEMORY_F_LOG = 0x1,
};
@@ -697,7 +701,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
return -EFAULT;
if (mem.padding)
return -EOPNOTSUPP;
- if (mem.nregions > VHOST_MEMORY_MAX_NREGIONS)
+ if (mem.nregions > max_mem_regions)
return -E2BIG;
newmem = vhost_kvzalloc(size + mem.nregions * sizeof(*m->regions));
if (!newmem)
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