On Tue, Jul 25, 2017 at 03:46:04PM +0200, Pavel Machek wrote: > > Is there some field in ext2 superblock that changes every time > filesystem is changed? Is mtime changed by fsck/badblocks/...? No, there isn't. If we were writing the superblock every time the file system is changed it would be ***extremely*** flash unfriendly. It would also be a scalability bottleneck, it would cause us to pay an extra HDD seek, etc. So it's a really bad Bad BAD idea, and so we don't do it. Cheers, - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
