linux-kernel - [PATCH v2 12/12] nvme: Generate uevent after attribute available

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Message-Id: <20160630015953.6888-13-famz@redhat.com>
Date:	Thu, 30 Jun 2016 09:59:53 +0800
From:	Fam Zheng <famz@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Jens Axboe <axboe@...nel.dk>,
	"Ed L. Cashin" <ed.cashin@....org>, Jiri Kosina <jikos@...nel.org>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Minchan Kim <minchan@...nel.org>,
	Nitin Gupta <ngupta@...are.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Shaohua Li <shli@...nel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	Keith Busch <keith.busch@...el.com>,
	linuxppc-dev@...ts.ozlabs.org, linux-block@...r.kernel.org,
	virtualization@...ts.linux-foundation.org,
	linux-raid@...r.kernel.org, linux-mmc@...r.kernel.org,
	linux-mtd@...ts.infradead.org, linux-nvme@...ts.infradead.org,
	Christoph Hellwig <hch@...radead.org>, famz@...hat.com
Subject: [PATCH v2 12/12] nvme: Generate uevent after attribute available

It is documented that KOBJ_ADD should be generated after the object's
attributes and children are ready.  We can achieve this with the new
disk_gen_uevents interface.

Signed-off-by: Fam Zheng <famz@...hat.com>
---
 drivers/nvme/host/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index fd70894..2655521 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1462,11 +1462,12 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 	if (ns->type == NVME_NS_LIGHTNVM)
 		return;
 
-	add_disk(ns->disk, true);
+	add_disk(ns->disk, false);
 	if (sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
 					&nvme_ns_attr_group))
 		pr_warn("%s: failed to create sysfs group for identification\n",
 			ns->disk->disk_name);
+	disk_gen_uevents(ns->disk);
 	return;
  out_free_disk:
 	kfree(disk);
-- 
2.9.0