From: Christoph Hellwig <[email protected]> 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 <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Kevin Wolf <[email protected]> --- block_int.h | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/block_int.h b/block_int.h index e3bfd19..b64a009 100644 --- a/block_int.h +++ b/block_int.h @@ -224,7 +224,9 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf) { unsigned int exp = 0, size; - for (size = conf->physical_block_size; size > 512; size >>= 1) { + for (size = conf->physical_block_size; + size > conf->logical_block_size; + size >>= 1) { exp++; } -- 1.6.6.1
