linux-kernel - [PATCH] virtio-blk: add back VIRTIO_BLK_F

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Message-Id: <1341482902-13318-1-git-send-email-pbonzini@redhat.com>
Date:	Thu,  5 Jul 2012 12:08:22 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org
Cc:	levinsasha928@...il.com, Rusty Russell <rusty@...tcorp.com.au>,
	"Michael S. Tsirkin" <mst@...hat.com>
Subject: [PATCH] virtio-blk: add back VIRTIO_BLK_F_FLUSH

The old name is part of the userspace API, add it back for compatibility.

Reported-by: Sasha Levin <levinsasha928@...il.com>
Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
 include/linux/virtio_blk.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index 18a1027..83a3116 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -41,6 +41,9 @@
 #define VIRTIO_BLK_F_TOPOLOGY	10	/* Topology information is available */
 #define VIRTIO_BLK_F_CONFIG_WCE	11	/* Writeback mode available in config */
 
+/* Backwards-compatibility #defines for renamed features.  */
+#define VIRTIO_BLK_F_FLUSH	VIRTIO_BLK_F_WCE
+
 #define VIRTIO_BLK_ID_BYTES	20	/* ID string length */
 
 struct virtio_blk_config {
-- 
1.7.1

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