linux-kernel - [PATCH 13/15] libnvdimm: flag libnvdimm block devices as non-rotational

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Message-ID: <20150617235557.12943.75518.stgit@dwillia2-desk3.amr.corp.intel.com>
Date:	Wed, 17 Jun 2015 19:55:57 -0400
From:	Dan Williams <dan.j.williams@...el.com>
To:	axboe@...nel.dk, linux-nvdimm@...ts.01.org
Cc:	boaz@...xistor.com, toshi.kani@...com,
	Vishal Verma <vishal.l.verma@...ux.intel.com>,
	linux-kernel@...r.kernel.org, hch@....de,
	linux-acpi@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	mingo@...nel.org
Subject: [PATCH 13/15] libnvdimm: flag libnvdimm block devices as
 non-rotational

...since they are effectively SSDs as far as userspace is concerned.

Reviewed-by: Vishal Verma <vishal.l.verma@...ux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
 drivers/nvdimm/core.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c
index 99cf95af5f24..fa82f215990d 100644
--- a/drivers/nvdimm/core.c
+++ b/drivers/nvdimm/core.c
@@ -220,6 +220,7 @@ void nd_blk_queue_init(struct request_queue *q)
 	blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
 	if (IS_ENABLED(CONFIG_ND_IOSTAT))
 		queue_flag_set_unlocked(QUEUE_FLAG_IO_STAT, q);
+	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
 }
 EXPORT_SYMBOL(nd_blk_queue_init);
 

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