dasd: use bdev_disk_changed instead of blk_drop_partitions

Use the more general interface - the behavior is the same except
that now a change uevent is sent, which is the right thing to do
when the device becomes unusable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Stefan Haberland <sth@linux.ibm.com>
Link: https://lore.kernel.org/r/20210406062303.811835-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/partitions/core.c b/block/partitions/core.c
index 1a75589..22a0dab 100644 (file)
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -544,10 +544,6 @@ int blk_drop_partitions(struct block_device *bdev)
 
        return 0;
 }
-#ifdef CONFIG_S390
-/* for historic reasons in the DASD driver */
-EXPORT_SYMBOL_GPL(blk_drop_partitions);
-#endif
 
 static bool blk_add_partition(struct gendisk *disk, struct block_device *bdev,
                struct parsed_partitions *state, int p)

diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index a9698fb..8d6587e 100644 (file)
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -146,12 +146,11 @@ void dasd_destroy_partitions(struct dasd_block *block)
        block->bdev = NULL;
 
        mutex_lock(&bdev->bd_mutex);
-       blk_drop_partitions(bdev);
+       bdev_disk_changed(bdev, true);
        mutex_unlock(&bdev->bd_mutex);
 
        /* Matching blkdev_put to the blkdev_get in dasd_scan_partitions. */
        blkdev_put(bdev, FMODE_READ);
-       set_capacity(block->gdp, 0);
 }
 
 int dasd_gendisk_init(void)