From mboxrd@z Thu Jan 1 00:00:00 1970 From: sagi@grimberg.me (Sagi Grimberg) Date: Wed, 21 Sep 2016 11:10:50 -0700 Subject: [PATCH] nvmet: Use direct IO for writes Message-ID: <1474481450-5036-1-git-send-email-sagi@grimberg.me> We're designed to work with high-end devices where direct IO makes perfect sense. We noticed that we context switch by scheduling kblockd instead of going directly to the device without REQ_SYNC for writes. Signed-off-by: Sagi Grimberg --- drivers/nvme/target/io-cmd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c index 2cd069b691ae..4132b6b98182 100644 --- a/drivers/nvme/target/io-cmd.c +++ b/drivers/nvme/target/io-cmd.c @@ -58,6 +58,7 @@ static void nvmet_execute_rw(struct nvmet_req *req) if (req->cmd->rw.opcode == nvme_cmd_write) { op = REQ_OP_WRITE; + op_flags = WRITE_ODIRECT; if (req->cmd->rw.control & cpu_to_le16(NVME_RW_FUA)) op_flags |= REQ_FUA; } else { -- 1.9.1