[RFC-v2 08/11] nvmet/io-cmd: Hookup sbc_ops->execute_sync_cache backend ops
From: Nicholas A. Bellinger <hidden>
Date: 2016-06-14 04:35:43
Also in:
linux-scsi
Subsystem:
nvm express target driver, the rest · Maintainers:
Christoph Hellwig, Sagi Grimberg, Chaitanya Kulkarni, Linus Torvalds
From: Nicholas Bellinger <redacted> This patch converts nvmet_execute_flush() to utilize sbc_ops->execute_sync_cache() for target_iostate submission into existing backends drivers via configfs in /sys/kernel/config/target/core/. Cc: Jens Axboe <axboe at fb.com> Cc: Christoph Hellwig <hch at lst.de> Cc: Martin Petersen <martin.petersen at oracle.com> Cc: Sagi Grimberg <sagi at grimberg.me> Cc: Hannes Reinecke <hare at suse.de> Cc: Mike Christie <michaelc at cs.wisc.edu> Signed-off-by: Nicholas Bellinger <nab at linux-iscsi.org> --- drivers/nvme/target/io-cmd.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c
index 133a14a..23905a8 100644
--- a/drivers/nvme/target/io-cmd.c
+++ b/drivers/nvme/target/io-cmd.c@@ -109,18 +109,21 @@ static void nvmet_execute_rw(struct nvmet_req *req) static void nvmet_execute_flush(struct nvmet_req *req) { -#if 0 - struct bio *bio; + struct target_iostate *ios = &req->t_iostate; + struct se_device *dev = rcu_dereference_raw(req->ns->dev); + struct sbc_ops *sbc_ops = dev->transport->sbc_ops; + sense_reason_t rc; - nvmet_inline_bio_init(req); - bio = &req->inline_bio; + if (!sbc_ops || !sbc_ops->execute_sync_cache) { + nvmet_req_complete(req, NVME_SC_INTERNAL | NVME_SC_DNR); + return; + } - bio->bi_bdev = req->ns->bdev; - bio->bi_private = req; - bio->bi_end_io = nvmet_bio_done; + ios->se_dev = dev; + ios->iomem = NULL; + ios->t_comp_func = &nvmet_complete_ios; - submit_bio(WRITE_FLUSH, bio); -#endif + rc = sbc_ops->execute_sync_cache(ios, false); } #if 0
--
1.9.1