diff options
| -rw-r--r-- | drivers/md/raid10.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 9a5beb4fd95..06bef686f91 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2050,9 +2050,10 @@ static int run(mddev_t *mddev) int nc, fc, fo; sector_t stride, size; - if (mddev->chunk_size < PAGE_SIZE) { + if (mddev->chunk_size < PAGE_SIZE || + !is_power_of_2(mddev->chunk_size)) { printk(KERN_ERR "md/raid10: chunk size must be " - "at least PAGE_SIZE(%ld).\n", PAGE_SIZE); + "at least PAGE_SIZE(%ld) and be a power of 2.\n", PAGE_SIZE); return -EINVAL; } |