diff mbox series

[13/30] cramfs: use bdev_nr_bytes instead of open coding it

Message ID 20211015132643.1621913-14-hch@lst.de
State Not Applicable
Headers show
Series [01/30] block: move the SECTOR_SIZE related definitions to blk_types.h | expand

Commit Message

Christoph Hellwig Oct. 15, 2021, 1:26 p.m. UTC 
Use the proper helper to read the block device size.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/cramfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Kees Cook Oct. 15, 2021, 4:51 p.m. UTC | #1 
On Fri, Oct 15, 2021 at 03:26:26PM +0200, Christoph Hellwig wrote:
> Use the proper helper to read the block device size.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Kees Cook <keescook@chromium.org>
diff mbox series

Patch

diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 2be65269a987c..666aa380011e0 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -209,7 +209,7 @@  static void *cramfs_blkdev_read(struct super_block *sb, unsigned int offset,
 		return read_buffers[i] + blk_offset;
 	}
 
-	devsize = mapping->host->i_size >> PAGE_SHIFT;
+	devsize = bdev_nr_bytes(sb->s_bdev) >> PAGE_SHIFT;
 
 	/* Ok, read in BLKS_PER_BUF pages completely first. */
 	for (i = 0; i < BLKS_PER_BUF; i++) {