Re: [PATCH 02/30] block: add a bdev_nr_bytes helper
From: Anton Altaparmakov <hidden>
Date: 2021-10-15 14:38:25
Also in:
dm-devel, linux-block, linux-btrfs, linux-ext4, linux-fsdevel, linux-nfs, linux-nvme, linux-raid, linux-scsi, ntfs3, target-devel
Hi Christoph,
On 15 Oct 2021, at 14:26, Christoph Hellwig [off-list ref] wrote: Add a helpe to query the size of a block device in bytes. This will be used to remove open coded access to ->bd_inode.
Matthew already pointed out the return type for bdev_nr_bytes() but also your commit message has a typo: "Add a helpe" -> "Add a helper". Best regards, Anton
quoted hunk ↗ jump to hunk
Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/genhd.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 082a3e5fd8fa1..f67db3c5a04b3 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h@@ -235,9 +235,14 @@ static inline sector_t get_start_sect(struct block_device *bdev)return bdev->bd_start_sect; } +static inline sector_t bdev_nr_bytes(struct block_device *bdev) +{ + return i_size_read(bdev->bd_inode); +} + static inline sector_t bdev_nr_sectors(struct block_device *bdev) { - return i_size_read(bdev->bd_inode) >> 9; + return bdev_nr_bytes(bdev) >> SECTOR_SHIFT; } static inline sector_t get_capacity(struct gendisk *disk) -- 2.30.2