xen/blkback: Add support for BLKIF_OP_FLUSH_DISKCACHE and drop BLKIF_OP_WRITE_BARRIER.

[karo-tx-linux.git] / drivers / block / xen-blkback / common.h

diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 16af388268e7f18613d53caced5cd550007ebc8c..af93837e129548c9a757675ce60c241962d90d18 100644 (file)
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -53,6 +53,7 @@ struct vbd {
        u32            pdevice;     /* phys device that this vbd maps to */
        struct block_device *bdev;
        sector_t       size;        /* Cached size parameter */
+       bool           flush_support;
 };
 
 struct backend_info;
@@ -85,7 +86,7 @@ struct blkif_st {
        int                 st_rd_req;
        int                 st_wr_req;
        int                 st_oo_req;
-       int                 st_br_req;
+       int                 st_f_req;
        int                 st_rd_sect;
        int                 st_wr_sect;
 
@@ -120,8 +121,8 @@ int xen_blkif_xenbus_init(void);
 irqreturn_t xen_blkif_be_int(int irq, void *dev_id);
 int xen_blkif_schedule(void *arg);
 
-int xen_blkbk_barrier(struct xenbus_transaction xbt,
-                       struct backend_info *be, int state);
+int xen_blkbk_flush_diskcache(struct xenbus_transaction xbt,
+                             struct backend_info *be, int state);
 
 struct xenbus_device *xen_blkbk_xenbus(struct backend_info *be);