xen: use less generic names in blkfront driver.

All Xen frontend drivers have a couple of identically named functions which
makes figuring out which device went wrong from a stacktrace harder than it
needs to be. Rename them to something specificto the device type.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 91374282755dbdcaba7e36a6bbe00cabfb9ebf48..304009e77c73a10d111adcc0954bb2ee6a9d7774 100644 (file)
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -651,7 +651,7 @@ fail:
 
 
 /* Common code used when first setting up, and when resuming. */
-static int talk_to_backend(struct xenbus_device *dev,
+static int talk_to_blkback(struct xenbus_device *dev,
                           struct blkfront_info *info)
 {
        const char *message = NULL;
@@ -756,7 +756,7 @@ static int blkfront_probe(struct xenbus_device *dev,
        info->handle = simple_strtoul(strrchr(dev->nodename, '/')+1, NULL, 0);
        dev_set_drvdata(&dev->dev, info);
 
-       err = talk_to_backend(dev, info);
+       err = talk_to_blkback(dev, info);
        if (err) {
                kfree(info);
                dev_set_drvdata(&dev->dev, NULL);
@@ -851,7 +851,7 @@ static int blkfront_resume(struct xenbus_device *dev)
 
        blkif_free(info, info->connected == BLKIF_STATE_CONNECTED);
 
-       err = talk_to_backend(dev, info);
+       err = talk_to_blkback(dev, info);
        if (info->connected == BLKIF_STATE_SUSPENDED && !err)
                err = blkif_recover(info);
 
@@ -955,13 +955,13 @@ static void blkfront_closing(struct xenbus_device *dev)
 /**
  * Callback received when the backend's state changes.
  */
-static void backend_changed(struct xenbus_device *dev,
+static void blkback_changed(struct xenbus_device *dev,
                            enum xenbus_state backend_state)
 {
        struct blkfront_info *info = dev_get_drvdata(&dev->dev);
        struct block_device *bd;
 
-       dev_dbg(&dev->dev, "blkfront:backend_changed.\n");
+       dev_dbg(&dev->dev, "blkfront:blkback_changed to state %d.\n", backend_state);
 
        switch (backend_state) {
        case XenbusStateInitialising:
@@ -1068,7 +1068,7 @@ static struct xenbus_driver blkfront = {
        .probe = blkfront_probe,
        .remove = blkfront_remove,
        .resume = blkfront_resume,
-       .otherend_changed = backend_changed,
+       .otherend_changed = blkback_changed,
        .is_ready = blkfront_is_ready,
 };