diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-04-15 06:52:54 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-04-17 19:49:59 -0600 |
| commit | cf0fbf894bb543f472f682c486be48298eccf199 (patch) | |
| tree | 94e16623288183a37b3448976a706a3e9e5aec74 /drivers/block/rnbd | |
| parent | e3cc28ea28b5f8794db2aed24f8a0282ad2e85a2 (diff) | |
block: add a bdev_max_discard_sectors helper
Add a helper to query the number of sectors support per each discard bio
based on the block device and use this helper to stop various places from
poking into the request_queue to see if discard is supported and if so how
much. This mirrors what is done e.g. for write zeroes as well.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> [drbd]
Acked-by: Coly Li <colyli@suse.de> [bcache]
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-24-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/rnbd')
| -rw-r--r-- | drivers/block/rnbd/rnbd-srv-dev.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/block/rnbd/rnbd-srv-dev.h b/drivers/block/rnbd/rnbd-srv-dev.h index 2c3df02b5e8e..f82fbb4bbda8 100644 --- a/drivers/block/rnbd/rnbd-srv-dev.h +++ b/drivers/block/rnbd/rnbd-srv-dev.h @@ -52,8 +52,7 @@ static inline int rnbd_dev_get_max_discard_sects(const struct rnbd_dev *dev) if (!blk_queue_discard(bdev_get_queue(dev->bdev))) return 0; - return blk_queue_get_max_sectors(bdev_get_queue(dev->bdev), - REQ_OP_DISCARD); + return bdev_max_discard_sectors(dev->bdev); } static inline int rnbd_dev_get_discard_granularity(const struct rnbd_dev *dev) |