From 86ff77bb68c6cda783b195a260f68fd5d32f7aaf Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Fri, 31 Aug 2012 17:29:53 -0500 Subject: [PATCH] rbd: drop dev registration check for new snap By the time rbd_dev_snaps_register() gets called during rbd device initialization, the main device will have already been registered. Similarly, a header refresh will only occur for an rbd device whose Linux device is registered. There is therefore no need to verify the main device is registered when registering a snapshot device. For the time being, turn the check into a WARN_ON(), but it can eventually just go away. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin --- drivers/block/rbd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 27988045b48e..fa99b94b9dbb 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2258,8 +2258,8 @@ static int rbd_dev_snaps_register(struct rbd_device *rbd_dev) int ret = 0; dout("%s called\n", __func__); - if (!device_is_registered(&rbd_dev->dev)) - return 0; + if (WARN_ON(!device_is_registered(&rbd_dev->dev))) + return -EIO; list_for_each_entry(snap, &rbd_dev->snaps, node) { if (!rbd_snap_registered(snap)) { -- 2.30.2