kernel/git/stable/linux.git/drivers/block/rnbd/rnbd-srv-dev.h, branch master

rnbd-srv: remove struct rnbd_dev

2022-09-21T14:35:23+00:00

Given that rnbd_srv_sess_dev already has an open_flags member, there is no need for the rnbd_dev indirection as a simple block_device pointer works just as well. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Acked-by: Jack Wang Link: https://lore.kernel.org/r/20220909131509.3263924-5-hch@lst.de Signed-off-by: Jens Axboe

rnbd-srv: remove rnbd_dev_{open,close}

2022-09-21T14:35:23+00:00

These can be trivially open coded in the callers. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Acked-by: Jack Wang Link: https://lore.kernel.org/r/20220909131509.3263924-4-hch@lst.de Signed-off-by: Jens Axboe

rnbd-srv: remove rnbd_endio

2022-09-21T14:35:23+00:00

Fold rnbd_endio into the only caller. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Acked-by: Jack Wang Link: https://lore.kernel.org/r/20220909131509.3263924-3-hch@lst.de Signed-off-by: Jens Axboe

rnbd-srv: simplify rnbd_srv_fill_msg_open_rsp

2022-09-21T14:35:23+00:00

Remove all the wrappers and just get the information directly from the block device, or where no such helpers exist the request_queue. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Acked-by: Jack Wang Link: https://lore.kernel.org/r/20220909131509.3263924-2-hch@lst.de Signed-off-by: Jens Axboe

rnbd-srv: remove the name field from struct rnbd_dev

2022-07-14T16:27:56+00:00

Just print the block device name directly using the %pg format specifier. Signed-off-by: Christoph Hellwig Acked-by: Jack Wang Reviewed-by: Jan Kara Reviewed-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220713055317.1888500-7-hch@lst.de Signed-off-by: Jens Axboe

rnbd-srv: use bdev_discard_alignment

2022-05-03T16:38:50+00:00

Use bdev_discard_alignment to calculate the correct discard alignment offset even for partitions instead of just looking at the queue limit. Signed-off-by: Christoph Hellwig Acked-by: Jack Wang Reviewed-by: Damien Le Moal Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20220418045314.360785-11-hch@lst.de Signed-off-by: Jens Axboe

block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD

2022-04-18T01:49:59+00:00

Secure erase is a very different operation from discard in that it is a data integrity operation vs hint. Fully split the limits and helper infrastructure to make the separation more clear. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Acked-by: Christoph Böhmwalder [drbd] Acked-by: Ryusuke Konishi [nifs2] Acked-by: Jaegeuk Kim [f2fs] Acked-by: Coly Li [bcache] Acked-by: David Sterba [btrfs] Acked-by: Chao Yu Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20220415045258.199825-27-hch@lst.de Signed-off-by: Jens Axboe

block: remove QUEUE_FLAG_DISCARD

2022-04-18T01:49:59+00:00

Just use a non-zero max_discard_sectors as an indicator for discard support, similar to what is done for write zeroes. The only places where needs special attention is the RAID5 driver, which must clear discard support for security reasons by default, even if the default stacking rules would allow for it. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Acked-by: Christoph Böhmwalder [drbd] Acked-by: Jan Höppner [s390] Acked-by: Coly Li [bcache] Acked-by: David Sterba [btrfs] Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20220415045258.199825-25-hch@lst.de Signed-off-by: Jens Axboe

block: add a bdev_max_discard_sectors helper

2022-04-18T01:49:59+00:00

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 Reviewed-by: Martin K. Petersen Acked-by: Christoph Böhmwalder [drbd] Acked-by: Coly Li [bcache] Acked-by: David Sterba [btrfs] Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20220415045258.199825-24-hch@lst.de Signed-off-by: Jens Axboe

rnbd-srv: remove struct rnbd_dev_blk_io

2022-02-02T14:49:59+00:00

Only the priv field of rnbd_dev_blk_io is used, so store the value of that in bio->bi_private directly and remove the entire bio_set overhead. Signed-off-by: Christoph Hellwig Reviewed-by: Jack Wang Link: https://lore.kernel.org/r/20220124091107.642561-12-hch@lst.de Signed-off-by: Jens Axboe