[PATCH 01/11] dasd: use bdev_disk_changed instead of blk_drop_partitions

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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@xxxxxx>
---
 block/partitions/core.c         | 4 ----
 drivers/s390/block/dasd_genhd.c | 3 +--
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/block/partitions/core.c b/block/partitions/core.c
index 1a7558917c47d6..22a0dab17ed343 100644
--- 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 a9698fba9b76ce..8d6587ec73e208 100644
--- 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)
-- 
2.30.1




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