Thread (76 messages) 76 messages, 15 authors, 2021-10-14
STALE1690d

[PATCH 07/29] target/iblock: use bdev_nr_sectors instead of open coding it

From: Christoph Hellwig <hch@lst.de>
Date: 2021-10-13 05:21:49
Also in: dm-devel, linux-bcache, linux-block, linux-btrfs, linux-fsdevel, linux-nfs, linux-nvme, linux-raid, linux-scsi, ntfs3, target-devel
Subsystem: scsi target subsystem, the rest · Maintainers: "Martin K. Petersen", Linus Torvalds

Use the proper helper to read the block device size.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/target/target_core_iblock.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 31df20abe141f..ab7f5678ebc44 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -232,8 +232,9 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 	struct block_device *bd,
 	struct request_queue *q)
 {
-	unsigned long long blocks_long = (div_u64(i_size_read(bd->bd_inode),
-					bdev_logical_block_size(bd)) - 1);
+	loff_t size = bdev_nr_sectors(bd) << SECTOR_SHIFT;
+	unsigned long long blocks_long =
+		div_u64(size, bdev_logical_block_size(bd)) - 1;
 	u32 block_size = bdev_logical_block_size(bd);
 
 	if (block_size == dev->dev_attrib.block_size)
-- 
2.30.2
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