[lvm-devel] dm thin: optimize away writing all zeroes to unprovisioned blocks
Eric Wheeler
lvm-dev at lists.ewheeler.net
Sat Dec 6 22:33:19 UTC 2014
> Actually, given your: count = bv.bv_len / sizeof(uint64_t);
>
> My immediate concern was it would've truncated any partial contents of
> the bio_vec beyond the last uint64_t boundary. Leading to possible
> false positive return from the function (because some contents weren't
> checked).
Understood. I had always thought bio data was block-size aligned.
Out of curiosity, do you have examples of when this is not so?
>
> --
> lvm-devel mailing list
> lvm-devel at redhat.com
> https://www.redhat.com/mailman/listinfo/lvm-devel
>
More information about the lvm-devel
mailing list