| Message ID | 20230106083317.93938-4-p.raghav@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block zoned cleanups | expand |
On 1/6/23 17:33, Pankaj Raghav wrote: > A generic bdev_zone_no() helper is added to calculate zone number for a > given sector in a block device. This helper internally uses disk_zone_no() > to find the zone number. > > Use the helper bdev_zone_no() to calculate nr of zones. This let's us > make modifications to the math if needed in one place. > > Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
On 1/6/23 00:33, Pankaj Raghav wrote: > A generic bdev_zone_no() helper is added to calculate zone number for a > given sector in a block device. This helper internally uses disk_zone_no() > to find the zone number. > > Use the helper bdev_zone_no() to calculate nr of zones. This let's us > make modifications to the math if needed in one place. Please use the imperative mood in patch descriptions (... is added -> add ...). let's -> lets If these two issues are addressed, please add: Reviewed-by: Bart Van Assche <bvanassche@acm.org>
On 1/6/23 00:33, Pankaj Raghav wrote: > A generic bdev_zone_no() helper is added to calculate zone number for a > given sector in a block device. This helper internally uses disk_zone_no() > to find the zone number. > > Use the helper bdev_zone_no() to calculate nr of zones. This let's us > make modifications to the math if needed in one place. > > Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> with Bart's comments fixed... looks good.... Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> -ck
s/nvmet/block/ in the Subject.
Otherwise:
Reviewed-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c index 1254cf57e008..7e4292d88016 100644 --- a/drivers/nvme/target/zns.c +++ b/drivers/nvme/target/zns.c @@ -254,8 +254,7 @@ static unsigned long nvmet_req_nr_zones_from_slba(struct nvmet_req *req) { unsigned int sect = nvmet_lba_to_sect(req->ns, req->cmd->zmr.slba); - return bdev_nr_zones(req->ns->bdev) - - (sect >> ilog2(bdev_zone_sectors(req->ns->bdev))); + return bdev_nr_zones(req->ns->bdev) - bdev_zone_no(req->ns->bdev, sect); } static unsigned long get_nr_zones_from_buf(struct nvmet_req *req, u32 bufsize) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 04b7cbfd7a2a..669cf4fed1ad 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1287,6 +1287,11 @@ static inline bool bdev_is_zoned(struct block_device *bdev) return blk_queue_is_zoned(bdev_get_queue(bdev)); } +static inline unsigned int bdev_zone_no(struct block_device *bdev, sector_t sec) +{ + return disk_zone_no(bdev->bd_disk, sec); +} + static inline bool bdev_op_is_zoned_write(struct block_device *bdev, blk_opf_t op) {
A generic bdev_zone_no() helper is added to calculate zone number for a given sector in a block device. This helper internally uses disk_zone_no() to find the zone number. Use the helper bdev_zone_no() to calculate nr of zones. This let's us make modifications to the math if needed in one place. Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> --- drivers/nvme/target/zns.c | 3 +-- include/linux/blkdev.h | 5 +++++ 2 files changed, 6 insertions(+), 2 deletions(-)