Wang Shilong posted on Fri, 21 Feb 2014 10:30:25 +0800 as excerpted: >>>> So my question is, why does scrub show a high (i.e. non-zero) value >>>> for no_csum? I never enabled nodatasum or a similar option. > This should be related to btrfs free space cache, it is designed as > nocow without checksums. That's a reasonable explanation. Thanks. =:^) (And anyway, if the space-cache gets corrupted, there are mount options to clear it, etc, and it's easily rebuilt even if it takes long enough keeping the cache is useful in general, so it's not a huge deal needing checksummed.) -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- 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
