diff options
Diffstat (limited to 'drivers/block/xen-blkback/xenbus.c')
-rw-r--r-- | drivers/block/xen-blkback/xenbus.c | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index bb66178c432b..e34219ea2b05 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -81,7 +81,7 @@ static void xen_update_blkif_status(struct xen_blkif *blkif) int i; /* Not ready to connect? */ - if (!blkif->rings || !blkif->rings[0].irq || !blkif->vbd.bdev) + if (!blkif->rings || !blkif->rings[0].irq || !blkif->vbd.bdev_handle) return; /* Already connected? */ @@ -99,12 +99,13 @@ static void xen_update_blkif_status(struct xen_blkif *blkif) return; } - err = sync_blockdev(blkif->vbd.bdev); + err = sync_blockdev(blkif->vbd.bdev_handle->bdev); if (err) { xenbus_dev_error(blkif->be->dev, err, "block flush"); return; } - invalidate_inode_pages2(blkif->vbd.bdev->bd_inode->i_mapping); + invalidate_inode_pages2( + blkif->vbd.bdev_handle->bdev->bd_inode->i_mapping); for (i = 0; i < blkif->nr_rings; i++) { ring = &blkif->rings[i]; @@ -472,9 +473,9 @@ static void xenvbd_sysfs_delif(struct xenbus_device *dev) static void xen_vbd_free(struct xen_vbd *vbd) { - if (vbd->bdev) - blkdev_put(vbd->bdev, NULL); - vbd->bdev = NULL; + if (vbd->bdev_handle) + bdev_release(vbd->bdev_handle); + vbd->bdev_handle = NULL; } static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, @@ -482,7 +483,7 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, int cdrom) { struct xen_vbd *vbd; - struct block_device *bdev; + struct bdev_handle *bdev_handle; vbd = &blkif->vbd; vbd->handle = handle; @@ -491,17 +492,17 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, vbd->pdevice = MKDEV(major, minor); - bdev = blkdev_get_by_dev(vbd->pdevice, vbd->readonly ? + bdev_handle = bdev_open_by_dev(vbd->pdevice, vbd->readonly ? BLK_OPEN_READ : BLK_OPEN_WRITE, NULL, NULL); - if (IS_ERR(bdev)) { + if (IS_ERR(bdev_handle)) { pr_warn("xen_vbd_create: device %08x could not be opened\n", vbd->pdevice); return -ENOENT; } - vbd->bdev = bdev; - if (vbd->bdev->bd_disk == NULL) { + vbd->bdev_handle = bdev_handle; + if (vbd->bdev_handle->bdev->bd_disk == NULL) { pr_warn("xen_vbd_create: device %08x doesn't exist\n", vbd->pdevice); xen_vbd_free(vbd); @@ -509,14 +510,14 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, } vbd->size = vbd_sz(vbd); - if (cdrom || disk_to_cdi(vbd->bdev->bd_disk)) + if (cdrom || disk_to_cdi(vbd->bdev_handle->bdev->bd_disk)) vbd->type |= VDISK_CDROM; - if (vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE) + if (vbd->bdev_handle->bdev->bd_disk->flags & GENHD_FL_REMOVABLE) vbd->type |= VDISK_REMOVABLE; - if (bdev_write_cache(bdev)) + if (bdev_write_cache(bdev_handle->bdev)) vbd->flush_support = true; - if (bdev_max_secure_erase_sectors(bdev)) + if (bdev_max_secure_erase_sectors(bdev_handle->bdev)) vbd->discard_secure = true; pr_debug("Successful creation of handle=%04x (dom=%u)\n", @@ -569,7 +570,7 @@ static void xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info struct xen_blkif *blkif = be->blkif; int err; int state = 0; - struct block_device *bdev = be->blkif->vbd.bdev; + struct block_device *bdev = be->blkif->vbd.bdev_handle->bdev; if (!xenbus_read_unsigned(dev->nodename, "discard-enable", 1)) return; @@ -930,15 +931,16 @@ again: goto abort; } err = xenbus_printf(xbt, dev->nodename, "sector-size", "%lu", - (unsigned long) - bdev_logical_block_size(be->blkif->vbd.bdev)); + (unsigned long)bdev_logical_block_size( + be->blkif->vbd.bdev_handle->bdev)); if (err) { xenbus_dev_fatal(dev, err, "writing %s/sector-size", dev->nodename); goto abort; } err = xenbus_printf(xbt, dev->nodename, "physical-sector-size", "%u", - bdev_physical_block_size(be->blkif->vbd.bdev)); + bdev_physical_block_size( + be->blkif->vbd.bdev_handle->bdev)); if (err) xenbus_dev_error(dev, err, "writing %s/physical-sector-size", dev->nodename); |