diff options
| -rw-r--r-- | block/genhd.c | 1 | ||||
| -rw-r--r-- | drivers/block/nbd.c | 4 | ||||
| -rw-r--r-- | drivers/block/xen-blkfront.c | 20 | ||||
| -rw-r--r-- | drivers/block/zram/zram_drv.c | 14 | ||||
| -rw-r--r-- | drivers/md/dm.c | 16 | ||||
| -rw-r--r-- | drivers/s390/block/dasd_ioctl.c | 5 | ||||
| -rw-r--r-- | fs/block_dev.c | 2 |
7 files changed, 13 insertions, 49 deletions
diff --git a/block/genhd.c b/block/genhd.c index 0fabfc90b8e4..b84b8671e627 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -930,7 +930,6 @@ struct block_device *bdget_disk(struct gendisk *disk, int partno) return bdev; } -EXPORT_SYMBOL(bdget_disk); /* * print a full list of all partitions - intended for places where the root diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 014683968ce1..92f84ed0ba9e 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1488,12 +1488,10 @@ out: static void nbd_release(struct gendisk *disk, fmode_t mode) { struct nbd_device *nbd = disk->private_data; - struct block_device *bdev = bdget_disk(disk, 0); if (test_bit(NBD_RT_DISCONNECT_ON_CLOSE, &nbd->config->runtime_flags) && - bdev->bd_openers == 0) + disk->part0->bd_openers == 0) nbd_disconnect_and_put(nbd); - bdput(bdev); nbd_config_put(nbd); nbd_put(nbd); diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 79521e33d30e..188e0b47534b 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -2153,7 +2153,7 @@ static void blkfront_closing(struct blkfront_info *info) } if (info->gd) - bdev = bdget_disk(info->gd, 0); + bdev = bdgrab(info->gd->part0); mutex_unlock(&info->mutex); @@ -2518,7 +2518,7 @@ static int blkfront_remove(struct xenbus_device *xbdev) disk = info->gd; if (disk) - bdev = bdget_disk(disk, 0); + bdev = bdgrab(disk->part0); info->xbdev = NULL; mutex_unlock(&info->mutex); @@ -2595,19 +2595,11 @@ out: static void blkif_release(struct gendisk *disk, fmode_t mode) { struct blkfront_info *info = disk->private_data; - struct block_device *bdev; struct xenbus_device *xbdev; mutex_lock(&blkfront_mutex); - - bdev = bdget_disk(disk, 0); - - if (!bdev) { - WARN(1, "Block device %s yanked out from us!\n", disk->disk_name); + if (disk->part0->bd_openers) goto out_mutex; - } - if (bdev->bd_openers) - goto out; /* * Check if we have been instructed to close. We will have @@ -2619,7 +2611,7 @@ static void blkif_release(struct gendisk *disk, fmode_t mode) if (xbdev && xbdev->state == XenbusStateClosing) { /* pending switch to state closed */ - dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n"); + dev_info(disk_to_dev(disk), "releasing disk\n"); xlvbd_release_gendisk(info); xenbus_frontend_closed(info->xbdev); } @@ -2628,14 +2620,12 @@ static void blkif_release(struct gendisk *disk, fmode_t mode) if (!xbdev) { /* sudden device removal */ - dev_info(disk_to_dev(bdev->bd_disk), "releasing disk\n"); + dev_info(disk_to_dev(disk), "releasing disk\n"); xlvbd_release_gendisk(info); disk->private_data = NULL; free_info(info); } -out: - bdput(bdev); out_mutex: mutex_unlock(&blkfront_mutex); } diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index dc8957d173d3..b0701bae6e98 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -1760,15 +1760,12 @@ static ssize_t reset_store(struct device *dev, return -EINVAL; zram = dev_to_zram(dev); - bdev = bdget_disk(zram->disk, 0); - if (!bdev) - return -ENOMEM; + bdev = zram->disk->part0; mutex_lock(&bdev->bd_mutex); /* Do not reset an active device or claimed device */ if (bdev->bd_openers || zram->claim) { mutex_unlock(&bdev->bd_mutex); - bdput(bdev); return -EBUSY; } @@ -1779,7 +1776,6 @@ static ssize_t reset_store(struct device *dev, /* Make sure all the pending I/O are finished */ fsync_bdev(bdev); zram_reset_device(zram); - bdput(bdev); mutex_lock(&bdev->bd_mutex); zram->claim = false; @@ -1965,16 +1961,11 @@ out_free_dev: static int zram_remove(struct zram *zram) { - struct block_device *bdev; - - bdev = bdget_disk(zram->disk, 0); - if (!bdev) - return -ENOMEM; + struct block_device *bdev = zram->disk->part0; mutex_lock(&bdev->bd_mutex); if (bdev->bd_openers || zram->claim) { mutex_unlock(&bdev->bd_mutex); - bdput(bdev); return -EBUSY; } @@ -1986,7 +1977,6 @@ static int zram_remove(struct zram *zram) /* Make sure all the pending I/O are finished */ fsync_bdev(bdev); zram_reset_device(zram); - bdput(bdev); pr_info("Removed device: %s\n", zram->disk->disk_name); diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 176adcff56b3..ed7e836efbcd 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2375,16 +2375,11 @@ out: */ static int lock_fs(struct mapped_device *md) { - struct block_device *bdev; int r; WARN_ON(test_bit(DMF_FROZEN, &md->flags)); - bdev = bdget_disk(md->disk, 0); - if (!bdev) - return -ENOMEM; - r = freeze_bdev(bdev); - bdput(bdev); + r = freeze_bdev(md->disk->part0); if (!r) set_bit(DMF_FROZEN, &md->flags); return r; @@ -2392,16 +2387,9 @@ static int lock_fs(struct mapped_device *md) static void unlock_fs(struct mapped_device *md) { - struct block_device *bdev; - if (!test_bit(DMF_FROZEN, &md->flags)) return; - - bdev = bdget_disk(md->disk, 0); - if (!bdev) - return; - thaw_bdev(bdev); - bdput(bdev); + thaw_bdev(md->disk->part0); clear_bit(DMF_FROZEN, &md->flags); } diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 304eba1acf16..9f6424408946 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -220,9 +220,8 @@ dasd_format(struct dasd_block *block, struct format_data_t *fdata) * enabling the device later. */ if (fdata->start_unit == 0) { - struct block_device *bdev = bdget_disk(block->gdp, 0); - bdev->bd_inode->i_blkbits = blksize_bits(fdata->blksize); - bdput(bdev); + block->gdp->part0->bd_inode->i_blkbits = + blksize_bits(fdata->blksize); } rc = base->discipline->format_device(base, fdata, 1); diff --git a/fs/block_dev.c b/fs/block_dev.c index a9905d8fd02b..9e56ee1f2652 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1299,7 +1299,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode) if (ret) return ret; } else { - struct block_device *whole = bdget_disk(disk, 0); + struct block_device *whole = bdgrab(disk->part0); mutex_lock_nested(&whole->bd_mutex, 1); ret = __blkdev_get(whole, mode); |