37 lines
1.4 KiB
Diff
37 lines
1.4 KiB
Diff
From 615791de3136070eb8fc9100aa8b5ead6905e56a Mon Sep 17 00:00:00 2001
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Message-Id: <615791de3136070eb8fc9100aa8b5ead6905e56a.1528226387.git.Jim.Somerville@windriver.com>
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In-Reply-To: <c8270e79f6b7008fde44b8d5aa6314d8cf89d3ed.1528226387.git.Jim.Somerville@windriver.com>
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References: <c8270e79f6b7008fde44b8d5aa6314d8cf89d3ed.1528226387.git.Jim.Somerville@windriver.com>
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From: Chris Friesen <chris.friesen@windriver.com>
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Date: Wed, 11 Jan 2017 13:38:37 -0500
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Subject: [PATCH 16/32] Enable building kernel with CONFIG_BLK_DEV_NBD
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By default, the CentOS 7.3 kernel will fail to build if
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CONFIG_BLK_DEV_NBD is enabled, either as module or builtin.
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The issue seems to be due to the use of REQ_TYPE_SPECIAL in the
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NBD code. Switching it to use REQ_TYPE_DRV_PRIV instead makes the
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problem go away.
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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drivers/block/nbd.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
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index a40a4f0..e0c6b62 100644
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--- a/drivers/block/nbd.c
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+++ b/drivers/block/nbd.c
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@@ -616,7 +616,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
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fsync_bdev(bdev);
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mutex_lock(&nbd->tx_lock);
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blk_rq_init(NULL, &sreq);
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- sreq.cmd_type = REQ_TYPE_SPECIAL;
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+ sreq.cmd_type = REQ_TYPE_DRV_PRIV;
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nbd_cmd(&sreq) = NBD_CMD_DISC;
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/* Check again after getting mutex back. */
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--
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1.8.3.1
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