# \[PATCH 05/29\] mtd/block2mtd: use bdev\_nr\_sectors instead of open coding it - From: Christoph Hellwig \ - Date: 2021-10-13 05:19:28 - List: linux-ext4 - Page: https://ratatoskr.run/linux-ext4/2021/10/215825 - Thread: https://ratatoskr.run/linux-block/2021/10/215820/t.md ```text Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig --- drivers/mtd/devices/block2mtd.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index c08721b11642b..d2d1a712188ce 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -269,7 +269,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size, goto err_free_block2mtd; } - if ((long)dev->blkdev->bd_inode->i_size % erase_size) { + if ((long)(bdev_nr_sectors(dev->blkdev) << SECTOR_SHIFT) % erase_size) { pr_err("erasesize must be a divisor of device size\n"); goto err_free_block2mtd; } @@ -284,7 +284,8 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size, dev->mtd.name = name; - dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; + dev->mtd.size = + (bdev_nr_sectors(dev->blkdev) << SECTOR_SHIFT) & PAGE_MASK; dev->mtd.erasesize = erase_size; dev->mtd.writesize = 1; dev->mtd.writebufsize = PAGE_SIZE; -- 2.30.2 ```