From: Yu Kuai <yukuai3@xxxxxxxxxx>
scsi_bios_ptable() is reading without opening disk as file, use the new
helper to read into block device page cache to prevent access bd_inode
directly from scsi.
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
---
drivers/scsi/scsicam.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/scsicam.c b/drivers/scsi/scsicam.c
index e2c7d8ef205f..1c99b964a0eb 100644
--- a/drivers/scsi/scsicam.c
+++ b/drivers/scsi/scsicam.c
@@ -32,11 +32,10 @@
*/
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 folio *folio;
- folio = read_mapping_folio(mapping, 0, NULL);
+ folio = bdev_read_folio(bdev_whole(dev), 0);
if (IS_ERR(folio))
return NULL;
--
2.39.2
