diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 4de6a2af592f..8ca3c29accbf 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -980,6 +980,8 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		if (copy_from_user(&range, argp, sizeof(range)))
 			return -EFAULT;
 
+		range.minlen = max_t(u64, q->limits.discard_granularity,
+				     range.minlen);
 		ret = ocfs2_trim_fs(sb, &range);
 		if (ret < 0)
 			return ret;