scsi: use bdev_read_cache_page in scsi_bios_ptable

Use bdev_read_cache_page instead of open coding it.

Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/scsi/scsicam.c b/drivers/scsi/scsicam.c
index 0ffdb8f2995f7a9dc59d14f912ce1dafd94fcc3e..149062af5c8d00cfd2318994c2ddd049d60f9815 100644 (file)
--- a/drivers/scsi/scsicam.c
+++ b/drivers/scsi/scsicam.c
@@ -33,11 +33,10 @@
  */
 unsigned char *scsi_bios_ptable(struct block_device *dev)
 {
-       struct address_space *mapping = bdev_whole(dev)->bd_inode->i_mapping;
        unsigned char *res = NULL;
        struct page *page;
 
-       page = read_mapping_page(mapping, 0, NULL);
+       page = bdev_read_cache_page(bdev_whole(dev), 0, GFP_NOIO);
        if (IS_ERR(page))
                return NULL;