Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / scsi / sd.h

diff --git a/kernel/drivers/scsi/sd.h b/kernel/drivers/scsi/sd.h
index 5f2a84a..765a6f1 100644 (file)
--- a/kernel/drivers/scsi/sd.h
+++ b/kernel/drivers/scsi/sd.h
@@ -65,7 +65,7 @@ struct scsi_disk {
        struct device   dev;
        struct gendisk  *disk;
        atomic_t        openers;
-       sector_t        capacity;       /* size in 512-byte sectors */
+       sector_t        capacity;       /* size in logical blocks */
        u32             max_xfer_blocks;
        u32             opt_xfer_blocks;
        u32             max_ws_blocks;
@@ -146,6 +146,16 @@ static inline int scsi_medium_access_command(struct scsi_cmnd *scmd)
        return 0;
 }
 
+static inline sector_t logical_to_sectors(struct scsi_device *sdev, sector_t blocks)
+{
+       return blocks << (ilog2(sdev->sector_size) - 9);
+}
+
+static inline unsigned int logical_to_bytes(struct scsi_device *sdev, sector_t blocks)
+{
+       return blocks * sdev->sector_size;
+}
+
 /*
  * A DIF-capable target device can be formatted with different
  * protection schemes.  Currently 0 through 3 are defined: