Hi, I'm reading the mkfs code, and confused by its -A option. >From its comments, the value specified by -A should be regarded as the start of the filesystem. But mkfs will always zero some area at the beginning of the first dev, regardless -r specified or not. My question is: Why mkfs zeros the beginning of the first dev? Is that expected? And any use case for -A option? thanks, -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
