[Xen-devel] [PATCH 1/3] xen-blkback: add remove_requested to xen_blkif and some declares

[Joe Jin <joe.jin@xxxxxxxxxx>]

Add remove_requested to xen_blkif and some declares.

Signed-off-by: Joe Jin <joe.jin@xxxxxxxxxx>
Cc: Daniel Stodden <daniel.stodden@xxxxxxxxxx>
Cc: Jens Axboe <jaxboe@xxxxxxxxxxxx>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Annie Li <annie.li@xxxxxxxxxx>
Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>
---
 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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