linux-kernel - [PATCH 1/3] xen-blkback: add remove_requested to xen

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Message-ID: <4E38AE71.5040008@oracle.com>
Date:	Wed, 03 Aug 2011 10:12:01 +0800
From:	Joe Jin <joe.jin@...cle.com>
To:	Daniel Stodden <daniel.stodden@...rix.com>,
	Jens Axboe <jaxboe@...ionio.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Annie Li <annie.li@...cle.com>,
	Ian Campbell <Ian.Campbell@...citrix.com>,
	Kurt C Hackel <KURT.HACKEL@...cle.com>
CC:	Greg Marsden <greg.marsden@...cle.com>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Joe Jin <joe.jin@...cle.com>
Subject: [PATCH 1/3] xen-blkback: add remove_requested to xen_blkif and some
 declares

Add remove_requested to xen_blkif and some declares.

Signed-off-by: Joe Jin <joe.jin@...cle.com>
Cc: Daniel Stodden <daniel.stodden@...rix.com>
Cc: Jens Axboe <jaxboe@...ionio.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: Annie Li <annie.li@...cle.com>
Cc: Ian Campbell <Ian.Campbell@...citrix.com>
---
 drivers/block/xen-blkback/common.h |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 9e40b28..453fecf 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -49,6 +49,7 @@
 	pr_debug(DRV_PFX "(%s:%d) " fmt ".\n",	\
 		 __func__, __LINE__, ##args)
 
+#define WPRINTK(fmt, args...) printk(KERN_WARNING "xen-blkback: " fmt, ##args)
 
 /* Not a real protocol.  Used to generate ring structs which contain
  * the elements common to all protocols only.  This way we get a
@@ -145,6 +146,7 @@ struct xen_blkif {
 	/* Back pointer to the backend_info. */
 	struct backend_info	*be;
 	/* Private fields. */
+	int			remove_requested;
 	spinlock_t		blk_ring_lock;
 	atomic_t		refcnt;
 
@@ -198,6 +200,9 @@ int xen_blkbk_flush_diskcache(struct xenbus_transaction xbt,
 
 struct xenbus_device *xen_blkbk_xenbus(struct backend_info *be);
 
+void xen_vbd_sync(struct xen_vbd *vbd);
+void xen_blkback_close(struct xen_blkif *blkif);
+
 static inline void blkif_get_x86_32_req(struct blkif_request *dst,
 					struct blkif_x86_32_request *src)
 {


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