From 2a93ad8fcb377b9d6e05947de161e146f5be4de9 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 18 Oct 2021 12:11:24 +0200
Subject: block: use bdev_nr_bytes instead of open coding it in
 blkdev_fallocate

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>
Link: https://lore.kernel.org/r/20211018101130.1838532-25-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/fops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'block/fops.c')

diff --git a/block/fops.c b/block/fops.c
index 2c43e493e37c..2ae8a7bd2b84 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -535,7 +535,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 		return -EOPNOTSUPP;
 
 	/* Don't go off the end of the device. */
-	isize = i_size_read(bdev->bd_inode);
+	isize = bdev_nr_bytes(bdev);
 	if (start >= isize)
 		return -EINVAL;
 	if (end >= isize) {
-- 
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