Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

[~andy/linux] / drivers / block / xen-blkfront.c

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c4a4c900628891c31fec541277cb7ffea9a3e68b..efe1b4761735a79faa30867ad625fdd51e043081 100644 (file)
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -162,7 +162,7 @@ static DEFINE_SPINLOCK(minor_lock);
 #define DEV_NAME       "xvd"   /* name in /dev */
 
 #define SEGS_PER_INDIRECT_FRAME \
-       (PAGE_SIZE/sizeof(struct blkif_request_segment_aligned))
+       (PAGE_SIZE/sizeof(struct blkif_request_segment))
 #define INDIRECT_GREFS(_segs) \
        ((_segs + SEGS_PER_INDIRECT_FRAME - 1)/SEGS_PER_INDIRECT_FRAME)
 
@@ -393,7 +393,7 @@ static int blkif_queue_request(struct request *req)
        unsigned long id;
        unsigned int fsect, lsect;
        int i, ref, n;
-       struct blkif_request_segment_aligned *segments = NULL;
+       struct blkif_request_segment *segments = NULL;
 
        /*
         * Used to store if we are able to queue the request by just using
@@ -550,7 +550,7 @@ static int blkif_queue_request(struct request *req)
                        } else {
                                n = i % SEGS_PER_INDIRECT_FRAME;
                                segments[n] =
-                                       (struct blkif_request_segment_aligned) {
+                                       (struct blkif_request_segment) {
                                                        .gref       = ref,
                                                        .first_sect = fsect,
                                                        .last_sect  = lsect };
@@ -1356,7 +1356,7 @@ static int blkfront_probe(struct xenbus_device *dev,
                char *type;
                int len;
                /* no unplug has been done: do not hook devices != xen vbds */
-               if (xen_platform_pci_unplug & XEN_UNPLUG_UNNECESSARY) {
+               if (xen_has_pv_and_legacy_disk_devices()) {
                        int major;
 
                        if (!VDEV_IS_EXTENDED(vdevice))
@@ -1547,7 +1547,7 @@ static int blkif_recover(struct blkfront_info *info)
                        for (i = 0; i < pending; i++) {
                                offset = (i * segs * PAGE_SIZE) >> 9;
                                size = min((unsigned int)(segs * PAGE_SIZE) >> 9,
-                                          (unsigned int)(bio->bi_size >> 9) - offset);
+                                          (unsigned int)bio_sectors(bio) - offset);
                                cloned_bio = bio_clone(bio, GFP_NOIO);
                                BUG_ON(cloned_bio == NULL);
                                bio_trim(cloned_bio, offset, size);
@@ -1904,13 +1904,16 @@ static void blkback_changed(struct xenbus_device *dev,
        case XenbusStateReconfiguring:
        case XenbusStateReconfigured:
        case XenbusStateUnknown:
-       case XenbusStateClosed:
                break;
 
        case XenbusStateConnected:
                blkfront_connect(info);
                break;
 
+       case XenbusStateClosed:
+               if (dev->state == XenbusStateClosed)
+                       break;
+               /* Missed the backend's Closing state -- fallthrough */
        case XenbusStateClosing:
                blkfront_closing(info);
                break;
@@ -2079,7 +2082,7 @@ static int __init xlblk_init(void)
        if (!xen_domain())
                return -ENODEV;
 
-       if (xen_hvm_domain() && !xen_platform_pci_unplug)
+       if (!xen_has_pv_disk_devices())
                return -ENODEV;
 
        if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) {