Am 15.06.2010 14:39, schrieb Christoph Hellwig:
> Both SCSI and virtio expect the physical block size relative to the
> logical block size. So get the factor first before calculating the
> log2.
>
> Reported-by: Mike Cao <b...@redhat.com>
> Signed-off-by: Christoph Hellwig <h...@lst.de>
>
> Index: qemu/block_int.h
> ===================================================================
> --- qemu.orig/block_int.h 2010-06-15 14:29:42.593012221 +0200
> +++ qemu/block_int.h 2010-06-15 14:30:00.164034570 +0200
> @@ -223,7 +223,9 @@ static inline unsigned int get_physical_
> {
> unsigned int exp = 0, size;
>
> - for (size = conf->physical_block_size; size > 512; size >>= 1) {
> + for (size = conf->physical_block_size / conf->logical_block_size;
> + size > 512;
512 looks wrong now that size is the number of logical blocks.
Kevin
> + size >>= 1) {
> exp++;
> }
>
>
