From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Date: Tue, 19 May 2020 08:06:27 +0000 (-0700)
Subject: nvmet: add helper to revalidate bdev and file ns
X-Git-Tag: v5.10.7~2495^2~5^2~24
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=463c5fabb8dfca4941c4c50365bb7749ac5c9916;p=platform%2Fkernel%2Flinux-rpi.git

nvmet: add helper to revalidate bdev and file ns

This patch adds a wrapper helper to indicate size change in the bdev &
file-backed namespace when revalidating ns. This helper is needed in
order to minimize code repetition in the next patch for configfs.c and
existing admin-cmd.c.  

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimbeg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 4c79aa8..f544a14 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -486,10 +486,7 @@ static void nvmet_execute_identify_ns(struct nvmet_req *req)
 	if (!ns)
 		goto done;
 
-	if (ns->bdev)
-		nvmet_bdev_ns_revalidate(ns);
-	else
-		nvmet_file_ns_revalidate(ns);
+	nvmet_ns_revalidate(ns);
 
 	/*
 	 * nuse = ncap = nsze isn't always true, but we have no way to find
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 7ce3d3b..ee58655 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -515,6 +515,14 @@ static void nvmet_p2pmem_ns_add_p2p(struct nvmet_ctrl *ctrl,
 		ns->nsid);
 }
 
+void nvmet_ns_revalidate(struct nvmet_ns *ns)
+{
+	if (ns->bdev)
+		nvmet_bdev_ns_revalidate(ns);
+	else
+		nvmet_file_ns_revalidate(ns);
+}
+
 int nvmet_ns_enable(struct nvmet_ns *ns)
 {
 	struct nvmet_subsys *subsys = ns->subsys;
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 3d981eb..93e0c2a 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -500,6 +500,7 @@ u16 nvmet_file_flush(struct nvmet_req *req);
 void nvmet_ns_changed(struct nvmet_subsys *subsys, u32 nsid);
 void nvmet_bdev_ns_revalidate(struct nvmet_ns *ns);
 int nvmet_file_ns_revalidate(struct nvmet_ns *ns);
+void nvmet_ns_revalidate(struct nvmet_ns *ns);
 
 static inline u32 nvmet_rw_len(struct nvmet_req *req)
 {