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| author |   Ajay Joshi <ajay.joshi@wdc.com> | 2019-10-27 23:05:48 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-11-07 06:36:08 -0700 |
| commit | 2e2d6f7e44a2b9f96ca8af445ae0150a6cefde41 (patch) | |
| tree | 48a9e5ba6ca01e06d3288925486ba68b5c52b7a0 /drivers/md/dm.c | |
| parent | Merge branch 'for-5.5/block' into for-5.5/drivers (diff) | |
| download | linux-dev-2e2d6f7e44a2b9f96ca8af445ae0150a6cefde41.tar.xz linux-dev-2e2d6f7e44a2b9f96ca8af445ae0150a6cefde41.zip | |
dm: add zone open, close and finish support
Implement REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH
support to allow explicit control of zone states.
Contains contributions from Matias Bjorling, Hans Holmberg and
Damien Le Moal.
Acked-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ajay Joshi <ajay.joshi@wdc.com>
Signed-off-by: Matias Bjorling <matias.bjorling@wdc.com>
Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 1a5e328c443a..bc143c1b2333 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1174,7 +1174,8 @@ static size_t dm_dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, /* * A target may call dm_accept_partial_bio only from the map routine. It is - * allowed for all bio types except REQ_PREFLUSH and REQ_OP_ZONE_RESET. + * allowed for all bio types except REQ_PREFLUSH, REQ_OP_ZONE_RESET, + * REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH. * * dm_accept_partial_bio informs the dm that the target only wants to process * additional n_sectors sectors of the bio and the rest of the data should be @@ -1627,7 +1628,7 @@ static blk_qc_t __split_and_process_bio(struct mapped_device *md, ci.sector_count = 0; error = __send_empty_flush(&ci); /* dec_pending submits any data associated with flush */ - } else if (bio_op(bio) == REQ_OP_ZONE_RESET) { + } else if (op_is_zone_mgmt(bio_op(bio))) { ci.bio = bio; ci.sector_count = 0; error = __split_and_process_non_flush(&ci); |