diff mbox series

[09/30] fs: use bdev_nr_bytes instead of open coding it in blkdev_max_block

Message ID 20211015132643.1621913-10-hch@lst.de (mailing list archive)
State Superseded
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>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
---
 fs/buffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Kees Cook Oct. 15, 2021, 4 p.m. UTC | #1 
On Fri, Oct 15, 2021 at 03:26:22PM +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/buffer.c b/fs/buffer.c
index c615387aedcae..156358977249f 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -878,7 +878,7 @@  link_dev_buffers(struct page *page, struct buffer_head *head)
 static sector_t blkdev_max_block(struct block_device *bdev, unsigned int size)
 {
 	sector_t retval = ~((sector_t)0);
-	loff_t sz = i_size_read(bdev->bd_inode);
+	loff_t sz = bdev_nr_bytes(bdev);
 
 	if (sz) {
 		unsigned int sizebits = blksize_bits(size);