xen/blkback: Use the DRV_PFX in the pr_.. macros. (22b20f2d) · Commits · jan.koester / Linux

drivers/block/xen-blkback/blkback.c

+18 −18

Original line number	Diff line number	Diff line
		@@ -196,20 +196,20 @@ static void vbd_resize(struct blkif_st *blkif)
		struct xenbus_device *dev = xen_blkbk_xenbus(blkif->be);
		unsigned long long new_size = vbd_sz(vbd);

		pr_info("xen-blkback: VBD Resize: Domid: %d, Device: (%d, %d)\n",
		pr_info(DRV_PFX "VBD Resize: Domid: %d, Device: (%d, %d)\n",
		blkif->domid, MAJOR(vbd->pdevice), MINOR(vbd->pdevice));
		pr_info("xen-blkback: VBD Resize: new size %llu\n", new_size);
		pr_info(DRV_PFX "VBD Resize: new size %llu\n", new_size);
		vbd->size = new_size;
		again:
		err = xenbus_transaction_start(&xbt);
		if (err) {
		pr_warn("xen-blkback: Error starting transaction");
		pr_warn(DRV_PFX "Error starting transaction");
		return;
		}
		err = xenbus_printf(xbt, dev->nodename, "sectors", "%llu",
		(unsigned long long)vbd_sz(vbd));
		if (err) {
		pr_warn("xen-blkback: Error writing new size");
		pr_warn(DRV_PFX "Error writing new size");
		goto abort;
		}
		/*
		@@ -219,7 +219,7 @@ static void vbd_resize(struct blkif_st *blkif)
		*/
		err = xenbus_printf(xbt, dev->nodename, "state", "%d", dev->state);
		if (err) {
		pr_warn("xen-blkback: Error writing the state");
		pr_warn(DRV_PFX "Error writing the state");
		goto abort;
		}

		@@ -227,7 +227,7 @@ static void vbd_resize(struct blkif_st *blkif)
		if (err == -EAGAIN)
		goto again;
		if (err)
		pr_warn("xen-blkback: Error ending transaction");
		pr_warn(DRV_PFX "Error ending transaction");
		abort:
		xenbus_transaction_end(xbt, 1);
		}
		@@ -270,7 +270,7 @@ int xen_blkif_schedule(void *arg)
		xen_blkif_get(blkif);

		if (debug_lvl)
		pr_debug("xen-blkback: %s: started\n", current->comm);
		pr_debug(DRV_PFX "%s: started\n", current->comm);

		while (!kthread_should_stop()) {
		if (try_to_freeze())
		@@ -299,7 +299,7 @@ int xen_blkif_schedule(void *arg)
		if (log_stats)
		print_stats(blkif);
		if (debug_lvl)
		pr_debug("xen-blkback: %s: exiting\n", current->comm);
		pr_debug(DRV_PFX "%s: exiting\n", current->comm);

		blkif->xenblkd = NULL;
		xen_blkif_put(blkif);
		@@ -343,7 +343,7 @@ static void xen_blkbk_unmap(struct pending_req *req)
		ret = m2p_remove_override(
		virt_to_page(unmap[i].host_addr), false);
		if (ret) {
		pr_alert("xen-blkback: Failed to remove M2P override for %lx\n",
		pr_alert(DRV_PFX "Failed to remove M2P override for %lx\n",
		(unsigned long)unmap[i].host_addr);
		continue;
		}
		@@ -385,7 +385,7 @@ static int xen_blkbk_map(struct blkif_request *req,
		*/
		for (i = 0; i < nseg; i++) {
		if (unlikely(map[i].status != 0)) {
		pr_debug("xen-blkback: invalid buffer -- could not remap it\n");
		pr_debug(DRV_PFX "invalid buffer -- could not remap it\n");
		map[i].handle = BLKBACK_INVALID_HANDLE;
		ret \|= 1;
		}
		@@ -398,7 +398,7 @@ static int xen_blkbk_map(struct blkif_request *req,
		ret = m2p_add_override(PFN_DOWN(map[i].dev_bus_addr),
		blkbk->pending_page(pending_req, i), false);
		if (ret) {
		pr_alert("xen-blkback: Failed to install M2P override for %lx (ret: %d)\n",
		pr_alert(DRV_PFX "Failed to install M2P override for %lx (ret: %d)\n",
		(unsigned long)map[i].dev_bus_addr, ret);
		/* We could switch over to GNTTABOP_copy */
		continue;
		@@ -419,11 +419,11 @@ static void __end_block_io_op(struct pending_req *pending_req, int error)
		/* An error fails the entire request. */
		if ((pending_req->operation == BLKIF_OP_FLUSH_DISKCACHE) &&
		(error == -EOPNOTSUPP)) {
		pr_debug("xen-blkback: flush diskcache op failed, not supported\n");
		pr_debug(DRV_PFX "flush diskcache op failed, not supported\n");
		xen_blkbk_flush_diskcache(XBT_NIL, pending_req->blkif->be, 0);
		pending_req->status = BLKIF_RSP_EOPNOTSUPP;
		} else if (error) {
		pr_debug("xen-blkback: Buffer not up-to-date at end of operation,"
		pr_debug(DRV_PFX "Buffer not up-to-date at end of operation,"
		" error=%d\n", error);
		pending_req->status = BLKIF_RSP_ERROR;
		}
		@@ -561,7 +561,7 @@ static int dispatch_rw_block_io(struct blkif_st *blkif,
		nseg = req->nr_segments;
		if (unlikely(nseg == 0 && operation != WRITE_FLUSH) \|\|
		unlikely(nseg > BLKIF_MAX_SEGMENTS_PER_REQUEST)) {
		pr_debug("xen-blkback: Bad number of segments in request (%d)\n",
		pr_debug(DRV_PFX "Bad number of segments in request (%d)\n",
		nseg);
		/* Haven't submitted any bio's yet. */
		goto fail_response;
		@@ -588,7 +588,7 @@ static int dispatch_rw_block_io(struct blkif_st *blkif,
		}

		if (vbd_translate(&preq, blkif, operation) != 0) {
		pr_debug("xen-blkback: access denied: %s of [%llu,%llu] on dev=%04x\n",
		pr_debug(DRV_PFX "access denied: %s of [%llu,%llu] on dev=%04x\n",
		operation == READ ? "read" : "write",
		preq.sector_number,
		preq.sector_number + preq.nr_sects, preq.dev);
		@@ -602,7 +602,7 @@ static int dispatch_rw_block_io(struct blkif_st *blkif,
		for (i = 0; i < nseg; i++) {
		if (((int)preq.sector_number\|(int)seg[i].nsec) &
		((bdev_logical_block_size(preq.bdev) >> 9) - 1)) {
		pr_debug("xen-blkback: Misaligned I/O request from domain %d",
		pr_debug(DRV_PFX "Misaligned I/O request from domain %d",
		blkif->domid);
		goto fail_response;
		}
		@@ -759,7 +759,7 @@ static int __init xen_blkif_init(void)

		blkbk = kzalloc(sizeof(struct xen_blkbk), GFP_KERNEL);
		if (!blkbk) {
		pr_alert("xen-blkback: %s: out of memory!\n", __func__);
		pr_alert(DRV_PFX "%s: out of memory!\n", __func__);
		return -ENOMEM;
		}

		@@ -807,7 +807,7 @@ static int __init xen_blkif_init(void)
		return 0;

		out_of_memory:
		pr_alert("xen-blkback: %s: out of memory\n", __func__);
		pr_alert(DRV_PFX "%s: out of memory\n", __func__);
		failed_init:
		kfree(blkbk->pending_reqs);
		kfree(blkbk->pending_grant_handles);

drivers/block/xen-blkback/common.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -42,8 +42,9 @@
		#include <xen/grant_table.h>
		#include <xen/xenbus.h>

		#define DRV_PFX "xen-blkback:"
		#define DPRINTK(fmt, args...) \
		pr_debug("xen-blkback: (%s:%d) " fmt ".\n", \
		pr_debug(DRV_PFX "(%s:%d) " fmt ".\n", \
		__func__, __LINE__, ##args)

		struct vbd {

drivers/block/xen-blkback/xenbus.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -504,7 +504,7 @@ static void backend_changed(struct xenbus_watch *watch,

		if ((be->major \|\| be->minor) &&
		((be->major != major) \|\| (be->minor != minor))) {
		pr_warn("xen-blkback: changing physical device (from %x:%x to %x:%x) not supported.\n",
		pr_warn(DRV_PFX "changing physical device (from %x:%x to %x:%x) not supported.\n",
		be->major, be->minor, major, minor);
		return;
		}
		@@ -571,7 +571,7 @@ static void frontend_changed(struct xenbus_device *dev,
		switch (frontend_state) {
		case XenbusStateInitialising:
		if (dev->state == XenbusStateClosed) {
		pr_info("xen-blkback: %s: prepare for reconnect\n",
		pr_info(DRV_PFX "%s: prepare for reconnect\n",
		dev->nodename);
		xenbus_switch_state(dev, XenbusStateInitWait);
		}
		@@ -726,7 +726,7 @@ static int connect_ring(struct backend_info *be)
		xenbus_dev_fatal(dev, err, "unknown fe protocol %s", protocol);
		return -1;
		}
		pr_info("xen-blkback: ring-ref %ld, event-channel %d, protocol %d (%s)\n",
		pr_info(DRV_PFX "ring-ref %ld, event-channel %d, protocol %d (%s)\n",
		ring_ref, evtchn, be->blkif->blk_protocol, protocol);

		/* Map the shared frame, irq etc. */