diff mbox series

[v7,10/13] dm-table: use bdev_is_zone_start helper in device_area_is_invalid()

Message ID 20220615101920.329421-11-p.raghav@samsung.com (mailing list archive)
State New, archived
Headers show
Series [v7,01/13] block: make blkdev_nr_zones and blk_queue_zone_no generic for npo2 zsze | expand

Commit Message

Pankaj Raghav June 15, 2022, 10:19 a.m. UTC 
Use bdev_is_zone_start() helper that uses generic calculation to check
for zone alignment instead of using po2 based alignment check.

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/md/dm-table.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Damien Le Moal June 15, 2022, 11:53 a.m. UTC | #1 
On 6/15/22 19:19, Pankaj Raghav wrote:
> Use bdev_is_zone_start() helper that uses generic calculation to check
> for zone alignment instead of using po2 based alignment check.
> 
> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
> ---
>  drivers/md/dm-table.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
> index bd539afbf..b553cdb6d 100644
> --- a/drivers/md/dm-table.c
> +++ b/drivers/md/dm-table.c
> @@ -251,7 +251,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
>  	if (bdev_is_zoned(bdev)) {
>  		unsigned int zone_sectors = bdev_zone_sectors(bdev);
>  
> -		if (start & (zone_sectors - 1)) {
> +		if (blk_queue_is_zone_start(bdev_get_queue(bdev), start)) {

This is wrong. And you are changing this to the correct test in the next
patch.

>  			DMWARN("%s: start=%llu not aligned to h/w zone size %u of %pg",
>  			       dm_device_name(ti->table->md),
>  			       (unsigned long long)start,
> @@ -268,7 +268,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
>  		 * devices do not end up with a smaller zone in the middle of
>  		 * the sector range.
>  		 */
> -		if (len & (zone_sectors - 1)) {
> +		if (blk_queue_is_zone_start(bdev_get_queue(bdev), len)) {
>  			DMWARN("%s: len=%llu not aligned to h/w zone size %u of %pg",
>  			       dm_device_name(ti->table->md),
>  			       (unsigned long long)len,
Pankaj Raghav June 16, 2022, 9:55 a.m. UTC | #2 
drivers/md/dm-table.c
>> +++ b/drivers/md/dm-table.c
>> @@ -251,7 +251,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
>>  	if (bdev_is_zoned(bdev)) {
>>  		unsigned int zone_sectors = bdev_zone_sectors(bdev);
>>  
>> -		if (start & (zone_sectors - 1)) {
>> +		if (blk_queue_is_zone_start(bdev_get_queue(bdev), start)) {
> 
> This is wrong. And you are changing this to the correct test in the next
> patch.
> 
Yeah, I think I made a mistake while committing it. The next patch
should only have the removing po2 condition check and these changes
should have been only in this patch. I will fix it up!
>>  			DMWARN("%s: start=%llu not aligned to h/w zone size %u of %pg",
>>  			       dm_device_name(ti->table->md),
>>  			       (unsigned long long)start,
>> @@ -268,7 +268,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
>>  		 * devices do not end up with a smaller zone in the middle of
>>  		 * the sector range.
>>  		 */
>> -		if (len & (zone_sectors - 1)) {
>> +		if (blk_queue_is_zone_start(bdev_get_queue(bdev), len)) {
>>  			DMWARN("%s: len=%llu not aligned to h/w zone size %u of %pg",
>>  			       dm_device_name(ti->table->md),
>>  			       (unsigned long long)len,
> 
>
Damien Le Moal June 16, 2022, 11:29 p.m. UTC | #3 
On 6/16/22 18:55, Pankaj Raghav wrote:
> drivers/md/dm-table.c
>>> +++ b/drivers/md/dm-table.c
>>> @@ -251,7 +251,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
>>>  	if (bdev_is_zoned(bdev)) {
>>>  		unsigned int zone_sectors = bdev_zone_sectors(bdev);
>>>  
>>> -		if (start & (zone_sectors - 1)) {
>>> +		if (blk_queue_is_zone_start(bdev_get_queue(bdev), start)) {
>>
>> This is wrong. And you are changing this to the correct test in the next
>> patch.
>>
> Yeah, I think I made a mistake while committing it. The next patch
> should only have the removing po2 condition check and these changes
> should have been only in this patch. I will fix it up!

This one and the next patch should be squashed together. They both deal
with non power of 2 zone size.


>>>  			DMWARN("%s: start=%llu not aligned to h/w zone size %u of %pg",
>>>  			       dm_device_name(ti->table->md),
>>>  			       (unsigned long long)start,
>>> @@ -268,7 +268,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
>>>  		 * devices do not end up with a smaller zone in the middle of
>>>  		 * the sector range.
>>>  		 */
>>> -		if (len & (zone_sectors - 1)) {
>>> +		if (blk_queue_is_zone_start(bdev_get_queue(bdev), len)) {
>>>  			DMWARN("%s: len=%llu not aligned to h/w zone size %u of %pg",
>>>  			       dm_device_name(ti->table->md),
>>>  			       (unsigned long long)len,
>>
>>
diff mbox series

Patch

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index bd539afbf..b553cdb6d 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -251,7 +251,7 @@  static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
 	if (bdev_is_zoned(bdev)) {
 		unsigned int zone_sectors = bdev_zone_sectors(bdev);
 
-		if (start & (zone_sectors - 1)) {
+		if (blk_queue_is_zone_start(bdev_get_queue(bdev), start)) {
 			DMWARN("%s: start=%llu not aligned to h/w zone size %u of %pg",
 			       dm_device_name(ti->table->md),
 			       (unsigned long long)start,
@@ -268,7 +268,7 @@  static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
 		 * devices do not end up with a smaller zone in the middle of
 		 * the sector range.
 		 */
-		if (len & (zone_sectors - 1)) {
+		if (blk_queue_is_zone_start(bdev_get_queue(bdev), len)) {
 			DMWARN("%s: len=%llu not aligned to h/w zone size %u of %pg",
 			       dm_device_name(ti->table->md),
 			       (unsigned long long)len,