xen/blkback: blkif->struct blkif_st

checkpatch.pl suggested that we don't use the typdef in common.h
and this triggered this avalanche of patches.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

drivers/xen/blkback/blkback.c

@@ -75,7 +75,7 @@ module_param(debug_lvl, int, 0644);
  * response queued for it, with the saved 'id' passed back.
  */
 typedef struct {
-	blkif_t       *blkif;
+	struct blkif_st       *blkif;
 	u64            id;
 	int            nr_pages;
 	atomic_t       pendcnt;
@@ -123,11 +123,11 @@ static inline unsigned long vaddr(pending_req_t *req, int seg)
 	(blkbk->pending_grant_handles[vaddr_pagenr(_req, _seg)])
 
 
-static int do_block_io_op(blkif_t *blkif);
-static void dispatch_rw_block_io(blkif_t *blkif,
+static int do_block_io_op(struct blkif_st *blkif);
+static void dispatch_rw_block_io(struct blkif_st *blkif,
 				 struct blkif_request *req,
 				 pending_req_t *pending_req);
-static void make_response(blkif_t *blkif, u64 id,
+static void make_response(struct blkif_st *blkif, u64 id,
 			  unsigned short op, int st);
 
 /*
@@ -169,7 +169,7 @@ static void free_req(pending_req_t *req)
  * It is OK to make multiple calls in this function as it
  * resets the plug to NULL when it is done on the first call.
  */
-static void unplug_queue(blkif_t *blkif)
+static void unplug_queue(struct blkif_st *blkif)
 {
 	if (blkif->plug == NULL)
 		return;
@@ -185,7 +185,7 @@ static void unplug_queue(blkif_t *blkif)
  * not to double reference. We also give back a reference count
  * if it corresponds to another queue.
  */
-static void plug_queue(blkif_t *blkif, struct block_device *bdev)
+static void plug_queue(struct blkif_st *blkif, struct block_device *bdev)
 {
 	struct request_queue *q = bdev_get_queue(bdev);
 
@@ -237,7 +237,7 @@ static void fast_flush_area(pending_req_t *req)
  * SCHEDULER FUNCTIONS
  */
 
-static void print_stats(blkif_t *blkif)
+static void print_stats(struct blkif_st *blkif)
 {
 	printk(KERN_DEBUG "%s: oo %3d  |  rd %4d  |  wr %4d  |  br %4d\n",
 	       current->comm, blkif->st_oo_req,
@@ -250,7 +250,7 @@ static void print_stats(blkif_t *blkif)
 
 int blkif_schedule(void *arg)
 {
-	blkif_t *blkif = arg;
+	struct blkif_st *blkif = arg;
 	struct vbd *vbd = &blkif->vbd;
 
 	blkif_get(blkif);
@@ -337,7 +337,7 @@ static void end_block_io_op(struct bio *bio, int error)
  * Notification from the guest OS.
  */
 
-static void blkif_notify_work(blkif_t *blkif)
+static void blkif_notify_work(struct blkif_st *blkif)
 {
 	blkif->waiting_reqs = 1;
 	wake_up(&blkif->wq);
@@ -356,7 +356,7 @@ irqreturn_t blkif_be_int(int irq, void *dev_id)
  * (which has the sectors we want, number of them, grant references, etc),
  * and transmute  it to the block API to hand it over to the proper block disk.
  */
-static int do_block_io_op(blkif_t *blkif)
+static int do_block_io_op(struct blkif_st *blkif)
 {
 	union blkif_back_rings *blk_rings = &blkif->blk_rings;
 	struct blkif_request req;
@@ -438,7 +438,7 @@ static int do_block_io_op(blkif_t *blkif)
  * Transumation of the 'struct blkif_request' to a proper 'struct bio'
  * and call the 'submit_bio' to pass it to the underlaying storage.
  */
-static void dispatch_rw_block_io(blkif_t *blkif,
+static void dispatch_rw_block_io(struct blkif_st *blkif,
 				 struct blkif_request *req,
 				 pending_req_t *pending_req)
 {
@@ -633,7 +633,7 @@ static void dispatch_rw_block_io(blkif_t *blkif,
 /*
  * Put a response on the ring on how the operation fared.
  */
-static void make_response(blkif_t *blkif, u64 id,
+static void make_response(struct blkif_st *blkif, u64 id,
 			  unsigned short op, int st)
 {
 	struct blkif_response  resp;

drivers/xen/blkback/common.h

@@ -34,7 +34,7 @@
 #include <linux/blkdev.h>
 #include <linux/vmalloc.h>
 #include <linux/wait.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/setup.h>
 #include <asm/pgalloc.h>
 #include <asm/hypervisor.h>
@@ -44,7 +44,7 @@
 
 #define DPRINTK(_f, _a...)			\
 	pr_debug("(file=%s, line=%d) " _f,	\
-		 __FILE__ , __LINE__ , ## _a )
+		 __FILE__ , __LINE__ , ## _a)
 
 struct vbd {
 	blkif_vdev_t   handle;      /* what the domain refers to this vbd as */
@@ -57,7 +57,7 @@ struct vbd {
 
 struct backend_info;
 
-typedef struct blkif_st {
+struct blkif_st {
 	/* Unique identifier for this interface. */
 	domid_t           domid;
 	unsigned int      handle;
@@ -94,13 +94,14 @@ typedef struct blkif_st {
 
 	grant_handle_t shmem_handle;
 	grant_ref_t    shmem_ref;
-} blkif_t;
+};
 
-blkif_t *blkif_alloc(domid_t domid);
-void blkif_disconnect(blkif_t *blkif);
-void blkif_free(blkif_t *blkif);
-int blkif_map(blkif_t *blkif, unsigned long shared_page, unsigned int evtchn);
-void vbd_resize(blkif_t *blkif);
+struct blkif_st *blkif_alloc(domid_t domid);
+void blkif_disconnect(struct blkif_st *blkif);
+void blkif_free(struct blkif_st *blkif);
+int blkif_map(struct blkif_st *blkif, unsigned long shared_page,
+	      unsigned int evtchn);
+void vbd_resize(struct blkif_st *blkif);
 
 #define blkif_get(_b) (atomic_inc(&(_b)->refcnt))
 #define blkif_put(_b)					\
@@ -110,7 +111,7 @@ void vbd_resize(blkif_t *blkif);
 	} while (0)
 
 /* Create a vbd. */
-int vbd_create(blkif_t *blkif, blkif_vdev_t vdevice, unsigned major,
+int vbd_create(struct blkif_st *blkif, blkif_vdev_t vdevice, unsigned major,
 	       unsigned minor, int readonly, int cdrom);
 void vbd_free(struct vbd *vbd);
 
@@ -125,7 +126,7 @@ struct phys_req {
 	blkif_sector_t       sector_number;
 };
 
-int vbd_translate(struct phys_req *req, blkif_t *blkif, int operation);
+int vbd_translate(struct phys_req *req, struct blkif_st *blkif, int operation);
 
 int blkif_interface_init(void);
 

drivers/xen/blkback/interface.c

@@ -35,9 +35,9 @@
 
 static struct kmem_cache *blkif_cachep;
 
-blkif_t *blkif_alloc(domid_t domid)
+struct blkif_st *blkif_alloc(domid_t domid)
 {
-	blkif_t *blkif;
+	struct blkif_st *blkif;
 
 	blkif = kmem_cache_alloc(blkif_cachep, GFP_KERNEL);
 	if (!blkif)
@@ -54,7 +54,7 @@ blkif_t *blkif_alloc(domid_t domid)
 	return blkif;
 }
 
-static int map_frontend_page(blkif_t *blkif, unsigned long shared_page)
+static int map_frontend_page(struct blkif_st *blkif, unsigned long shared_page)
 {
 	struct gnttab_map_grant_ref op;
 
@@ -75,7 +75,7 @@ static int map_frontend_page(blkif_t *blkif, unsigned long shared_page)
 	return 0;
 }
 
-static void unmap_frontend_page(blkif_t *blkif)
+static void unmap_frontend_page(struct blkif_st *blkif)
 {
 	struct gnttab_unmap_grant_ref op;
 
@@ -86,7 +86,7 @@ static void unmap_frontend_page(blkif_t *blkif)
 		BUG();
 }
 
-int blkif_map(blkif_t *blkif, unsigned long shared_page, unsigned int evtchn)
+int blkif_map(struct blkif_st *blkif, unsigned long shared_page, unsigned int evtchn)
 {
 	int err;
 
@@ -143,7 +143,7 @@ int blkif_map(blkif_t *blkif, unsigned long shared_page, unsigned int evtchn)
 	return 0;
 }
 
-void blkif_disconnect(blkif_t *blkif)
+void blkif_disconnect(struct blkif_st *blkif)
 {
 	if (blkif->xenblkd) {
 		kthread_stop(blkif->xenblkd);
@@ -166,7 +166,7 @@ void blkif_disconnect(blkif_t *blkif)
 	}
 }
 
-void blkif_free(blkif_t *blkif)
+void blkif_free(struct blkif_st *blkif)
 {
 	if (!atomic_dec_and_test(&blkif->refcnt))
 		BUG();
@@ -175,7 +175,7 @@ void blkif_free(blkif_t *blkif)
 
 int __init blkif_interface_init(void)
 {
-	blkif_cachep = kmem_cache_create("blkif_cache", sizeof(blkif_t),
+	blkif_cachep = kmem_cache_create("blkif_cache", sizeof(struct blkif_st),
 					 0, 0, NULL);
 	if (!blkif_cachep)
 		return -ENOMEM;

drivers/xen/blkback/vbd.c

@@ -48,7 +48,7 @@ unsigned long vbd_secsize(struct vbd *vbd)
 	return bdev_logical_block_size(vbd->bdev);
 }
 
-int vbd_create(blkif_t *blkif, blkif_vdev_t handle, unsigned major,
+int vbd_create(struct blkif_st *blkif, blkif_vdev_t handle, unsigned major,
 	       unsigned minor, int readonly, int cdrom)
 {
 	struct vbd *vbd;
@@ -97,7 +97,7 @@ void vbd_free(struct vbd *vbd)
 	vbd->bdev = NULL;
 }
 
-int vbd_translate(struct phys_req *req, blkif_t *blkif, int operation)
+int vbd_translate(struct phys_req *req, struct blkif_st *blkif, int operation)
 {
 	struct vbd *vbd = &blkif->vbd;
 	int rc = -EACCES;
@@ -116,7 +116,7 @@ int vbd_translate(struct phys_req *req, blkif_t *blkif, int operation)
 	return rc;
 }
 
-void vbd_resize(blkif_t *blkif)
+void vbd_resize(struct blkif_st *blkif)
 {
 	struct vbd *vbd = &blkif->vbd;
 	struct xenbus_transaction xbt;

drivers/xen/blkback/xenbus.c

@@ -30,7 +30,7 @@
 struct backend_info
 {
 	struct xenbus_device *dev;
-	blkif_t *blkif;
+	struct blkif_st *blkif;
 	struct xenbus_watch backend_watch;
 	unsigned major;
 	unsigned minor;
@@ -47,7 +47,7 @@ struct xenbus_device *blkback_xenbus(struct backend_info *be)
 	return be->dev;
 }
 
-static int blkback_name(blkif_t *blkif, char *buf)
+static int blkback_name(struct blkif_st *blkif, char *buf)
 {
 	char *devpath, *devname;
 	struct xenbus_device *dev = blkif->be->dev;
@@ -67,7 +67,7 @@ static int blkback_name(blkif_t *blkif, char *buf)
 	return 0;
 }
 
-static void update_blkif_status(blkif_t *blkif)
+static void update_blkif_status(struct blkif_st *blkif)
 {
 	int err;
 	char name[TASK_COMM_LEN];