diff mbox series

[03/27] target: fix discard alignment on partitions

Message ID 20220415045258.199825-4-hch@lst.de (mailing list archive)
State New
Headers show
Series [01/27] target: remove an incorrect unmap zeroes data deduction | expand

Commit Message

Christoph Hellwig April 15, 2022, 4:52 a.m. UTC 
Use the proper bdev_discard_alignment helper that accounts for partition
offsets.

Fixes: c66ac9db8d4a ("[SCSI] target: Add LIO target core v4.0.0-rc6")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
---
 drivers/target/target_core_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Chaitanya Kulkarni April 15, 2022, 5:39 a.m. UTC | #1 
On 4/14/22 21:52, Christoph Hellwig wrote:
> Use the proper bdev_discard_alignment helper that accounts for partition
> offsets.
> 
> Fixes: c66ac9db8d4a ("[SCSI] target: Add LIO target core v4.0.0-rc6")
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
> ---

Helper does handle the case for of partition.

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

-ck
diff mbox series

Patch

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 3a1ec705cd80b..16e775bcf4a7c 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -849,8 +849,8 @@  bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
 	 */
 	attrib->max_unmap_block_desc_count = 1;
 	attrib->unmap_granularity = q->limits.discard_granularity / block_size;
-	attrib->unmap_granularity_alignment = q->limits.discard_alignment /
-								block_size;
+	attrib->unmap_granularity_alignment =
+		bdev_discard_alignment(bdev) / block_size;
 	return true;
 }
 EXPORT_SYMBOL(target_configure_unmap_from_queue);