From: Christoph Hellwig <hch@lst.de>
Date: Mon, 11 Oct 2021 11:36:06 +0000 (+0200)
Subject: fs: use bdev_nr_bytes instead of open coding it in blkdev_max_block
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7b908829b9b8ba9597fd29dd8be4426b7a973f32;p=users%2Fhch%2Fblock.git

fs: use bdev_nr_bytes instead of open coding it in blkdev_max_block

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>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
---

diff --git a/fs/buffer.c b/fs/buffer.c
index c615387aedca..156358977249 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);