From: Christoph Hellwig <hch@lst.de>
Date: Mon, 11 Oct 2021 14:41:37 +0000 (+0200)
Subject: block: use bdev_nr_bytes instead of open coding it in blkdev_fallocate
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c76c4aa1684e5cc1c91b23b5227920c556c363bf;p=users%2Fhch%2Fblock.git

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>
---

diff --git a/block/fops.c b/block/fops.c
index 7bb9581a146c..a6a4d412720c 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -548,7 +548,7 @@ 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) {