1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 8bdc9bfc2887..da5129a24b18 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -19,6 +19,7 @@
  */
 
 #include "dm-bio-list.h"
+#include <linux/delay.h>
 #include <linux/raid/raid10.h>
 #include <linux/raid/bitmap.h>
 
@@ -2028,8 +2029,9 @@ static int run(mddev_t *mddev)
         int nc, fc, fo;
         sector_t stride, size;
 
-        if (mddev->chunk_size == 0) {
-                printk(KERN_ERR "md/raid10: non-zero chunk size required.\n");
+        if (mddev->chunk_size < PAGE_SIZE) {
+                printk(KERN_ERR "md/raid10: chunk size must be "
+                       "at least PAGE_SIZE(%ld).\n", PAGE_SIZE);
                 return -EINVAL;
         }