diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-04-05 19:21:13 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-08 11:25:38 -0600 |
| commit | e850fd16f751a6dd1af52fd874225b1231ba9014 (patch) | |
| tree | b4dfcbb1b0ade6711814adc25ed468cf310576f2 /drivers/nvme/host/core.c | |
| parent | e4b878371b85ddcd3e00eb68fa45e61793c37af0 (diff) | |
| download | linux-next-e850fd16f751a6dd1af52fd874225b1231ba9014.tar.gz linux-next-e850fd16f751a6dd1af52fd874225b1231ba9014.zip | |
nvme: implement REQ_OP_WRITE_ZEROES
But now for the real NVMe Write Zeroes yet, just to get rid of the
discard abuse for zeroing. Also rename the quirk flag to be a bit
more self-explanatory.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/core.c')
| -rw-r--r-- | drivers/nvme/host/core.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 14fbe9d80067..d33f829c3ab7 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -368,6 +368,8 @@ int nvme_setup_cmd(struct nvme_ns *ns, struct request *req, case REQ_OP_FLUSH: nvme_setup_flush(ns, cmd); break; + case REQ_OP_WRITE_ZEROES: + /* currently only aliased to deallocate for a few ctrls: */ case REQ_OP_DISCARD: ret = nvme_setup_discard(ns, req, cmd); break; @@ -933,16 +935,14 @@ static void nvme_config_discard(struct nvme_ns *ns) BUILD_BUG_ON(PAGE_SIZE / sizeof(struct nvme_dsm_range) < NVME_DSM_MAX_RANGES); - if (ctrl->quirks & NVME_QUIRK_DISCARD_ZEROES) - ns->queue->limits.discard_zeroes_data = 1; - else - ns->queue->limits.discard_zeroes_data = 0; - ns->queue->limits.discard_alignment = logical_block_size; ns->queue->limits.discard_granularity = logical_block_size; blk_queue_max_discard_sectors(ns->queue, UINT_MAX); blk_queue_max_discard_segments(ns->queue, NVME_DSM_MAX_RANGES); queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, ns->queue); + + if (ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES) + blk_queue_max_write_zeroes_sectors(ns->queue, UINT_MAX); } static int nvme_revalidate_ns(struct nvme_ns *ns, struct nvme_id_ns **id) |