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Commit 3d814731 authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk
Browse files

xen/blkback: Prefix 'vbd' with 'xen' in structs and functions. 



Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 30fd1502

drivers/block/xen-blkback/blkback.c

+10 −10
Original line number Diff line number Diff line
@@ -166,10 +166,10 @@ static void free_req(struct pending_req *req) 
/*

 * Routines for managing virtual block devices (vbds).

 */

static int vbd_translate(struct phys_req *req, struct xen_blkif *blkif,

static int xen_vbd_translate(struct phys_req *req, struct xen_blkif *blkif,

			     int operation)

{

	struct vbd *vbd = &blkif->vbd;

	struct xen_vbd *vbd = &blkif->vbd;

	int rc = -EACCES;



	if ((operation != READ) && vbd->readonly)
@@ -186,9 +186,9 @@ static int vbd_translate(struct phys_req *req, struct xen_blkif *blkif, 
	return rc;

}



static void vbd_resize(struct xen_blkif *blkif)

static void xen_vbd_resize(struct xen_blkif *blkif)

{

	struct vbd *vbd = &blkif->vbd;

	struct xen_vbd *vbd = &blkif->vbd;

	struct xenbus_transaction xbt;

	int err;

	struct xenbus_device *dev = xen_blkbk_xenbus(blkif->be);
@@ -263,7 +263,7 @@ static void print_stats(struct xen_blkif *blkif) 
int xen_blkif_schedule(void *arg)

{

	struct xen_blkif *blkif = arg;

	struct vbd *vbd = &blkif->vbd;

	struct xen_vbd *vbd = &blkif->vbd;



	xen_blkif_get(blkif);
@@ -271,7 +271,7 @@ int xen_blkif_schedule(void *arg) 
		if (try_to_freeze())

			continue;

		if (unlikely(vbd->size != vbd_sz(vbd)))

			vbd_resize(blkif);

			xen_vbd_resize(blkif);



		wait_event_interruptible(

			blkif->wq,
@@ -538,7 +538,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, 
		blkif->st_f_req++;

		operation = WRITE_FLUSH;

		/*

		 * The frontend likes to set this to -1, which vbd_translate

		 * The frontend likes to set this to -1, which xen_vbd_translate

		 * is alergic too.

		 */

		req->u.rw.sector_number = 0;
@@ -580,7 +580,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, 


	}



	if (vbd_translate(&preq, blkif, operation) != 0) {

	if (xen_vbd_translate(&preq, blkif, operation) != 0) {

		pr_debug(DRV_PFX "access denied: %s of [%llu,%llu] on dev=%04x\n",

			 operation == READ ? "read" : "write",

			 preq.sector_number,
@@ -589,7 +589,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, 
	}



	/*

	 * This check _MUST_ be done after vbd_translate as the preq.bdev

	 * This check _MUST_ be done after xen_vbd_translate as the preq.bdev

	 * is set there.

	 */

	for (i = 0; i < nseg; i++) {

drivers/block/xen-blkback/common.h

+2 −2
Original line number Diff line number Diff line
@@ -113,7 +113,7 @@ enum blkif_protocol { 
	BLKIF_PROTOCOL_X86_64 = 3,

};



struct vbd {

struct xen_vbd {

	/* What the domain refers to this vbd as. */

	blkif_vdev_t		handle;

	/* Non-zero -> read-only */
@@ -141,7 +141,7 @@ struct xen_blkif { 
	union blkif_back_rings	blk_rings;

	struct vm_struct	*blk_ring_area;

	/* The VBD attached to this interface. */

	struct vbd		vbd;

	struct xen_vbd		vbd;

	/* Back pointer to the backend_info. */

	struct backend_info	*be;

	/* Private fields. */

drivers/block/xen-blkback/xenbus.c

+17 −17
Original line number Diff line number Diff line
@@ -275,7 +275,7 @@ VBD_SHOW(f_req, "%d\n", be->blkif->st_f_req); 
VBD_SHOW(rd_sect, "%d\n", be->blkif->st_rd_sect);

VBD_SHOW(wr_sect, "%d\n", be->blkif->st_wr_sect);



static struct attribute *vbdstat_attrs[] = {

static struct attribute *xen_vbdstat_attrs[] = {

	&dev_attr_oo_req.attr,

	&dev_attr_rd_req.attr,

	&dev_attr_wr_req.attr,
@@ -285,9 +285,9 @@ static struct attribute *vbdstat_attrs[] = { 
	NULL

};



static struct attribute_group vbdstat_group = {

static struct attribute_group xen_vbdstat_group = {

	.name = "statistics",

	.attrs = vbdstat_attrs,

	.attrs = xen_vbdstat_attrs,

};



VBD_SHOW(physical_device, "%x:%x\n", be->major, be->minor);
@@ -305,13 +305,13 @@ int xenvbd_sysfs_addif(struct xenbus_device *dev) 
	if (error)

		goto fail2;



	error = sysfs_create_group(&dev->dev.kobj, &vbdstat_group);

	error = sysfs_create_group(&dev->dev.kobj, &xen_vbdstat_group);

	if (error)

		goto fail3;



	return 0;



fail3:	sysfs_remove_group(&dev->dev.kobj, &vbdstat_group);

fail3:	sysfs_remove_group(&dev->dev.kobj, &xen_vbdstat_group);

fail2:	device_remove_file(&dev->dev, &dev_attr_mode);

fail1:	device_remove_file(&dev->dev, &dev_attr_physical_device);

	return error;
@@ -319,24 +319,24 @@ fail1: device_remove_file(&dev->dev, &dev_attr_physical_device); 


void xenvbd_sysfs_delif(struct xenbus_device *dev)

{

	sysfs_remove_group(&dev->dev.kobj, &vbdstat_group);

	sysfs_remove_group(&dev->dev.kobj, &xen_vbdstat_group);

	device_remove_file(&dev->dev, &dev_attr_mode);

	device_remove_file(&dev->dev, &dev_attr_physical_device);

}





static void vbd_free(struct vbd *vbd)

static void xen_vbd_free(struct xen_vbd *vbd)

{

	if (vbd->bdev)

		blkdev_put(vbd->bdev, vbd->readonly ? FMODE_READ : FMODE_WRITE);

	vbd->bdev = NULL;

}



static int vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,

static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,

			  unsigned major, unsigned minor, int readonly,

			  int cdrom)

{

	struct vbd *vbd;

	struct xen_vbd *vbd;

	struct block_device *bdev;

	struct request_queue *q;
@@ -351,7 +351,7 @@ static int vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, 
				 FMODE_READ : FMODE_WRITE, NULL);



	if (IS_ERR(bdev)) {

		DPRINTK("vbd_create: device %08x could not be opened.\n",

		DPRINTK("xen_vbd_create: device %08x could not be opened.\n",

			vbd->pdevice);

		return -ENOENT;

	}
@@ -360,9 +360,9 @@ static int vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, 
	vbd->size = vbd_sz(vbd);



	if (vbd->bdev->bd_disk == NULL) {

		DPRINTK("vbd_create: device %08x doesn't exist.\n",

		DPRINTK("xen_vbd_create: device %08x doesn't exist.\n",

			vbd->pdevice);

		vbd_free(vbd);

		xen_vbd_free(vbd);

		return -ENOENT;

	}
@@ -396,7 +396,7 @@ static int xen_blkbk_remove(struct xenbus_device *dev) 


	if (be->blkif) {

		xen_blkif_disconnect(be->blkif);

		vbd_free(&be->blkif->vbd);

		xen_vbd_free(&be->blkif->vbd);

		xen_blkif_free(be->blkif);

		be->blkif = NULL;

	}
@@ -535,7 +535,7 @@ static void backend_changed(struct xenbus_watch *watch, 
		be->major = major;

		be->minor = minor;



		err = vbd_create(be->blkif, handle, major, minor,

		err = xen_vbd_create(be->blkif, handle, major, minor,

				 (NULL == strchr(be->mode, 'w')), cdrom);

		if (err) {

			be->major = 0;
@@ -546,7 +546,7 @@ static void backend_changed(struct xenbus_watch *watch, 


		err = xenvbd_sysfs_addif(dev);

		if (err) {

			vbd_free(&be->blkif->vbd);

			xen_vbd_free(&be->blkif->vbd);

			be->major = 0;

			be->minor = 0;

			xenbus_dev_fatal(dev, err, "creating sysfs entries");