[linux-lvm] [PATCH] snapshots on unaligned lvs

[Andreas Dilger]

On Oct 11, 2001  14:16 -0400, Chris Mason wrote:
> @@ -360,8 +361,14 @@
>  
>  	iobuf = lv_snap->lv_iobuf;
>  
> -	blksize_org = lvm_get_blksize(org_phys_dev);
> -	blksize_snap = lvm_get_blksize(snap_phys_dev);
> +	blksize_org = get_hardsect_size(org_phys_dev);
> +	blksize_snap = get_hardsect_size(snap_phys_dev);

FYI - there is now a helper function "lvm_sectsize()" which is defined
appropriately for a given kernel version to call get_hardsect_size()
or get_hardblock_size().  I originally put it directly in lvm.c because
that was the only place we used it, but it should move to lvm-internal.h
instead.

I won't check in this patch until I at least hear some Yea's as I can't
do any testing on it myself right now.  Of course the Sistina folks are
free to test/commit it as well.

Cheers, Andreas
--
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert