VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Christoph Hellwig <hch@lst.de> 2021-04-06 08:22:55 +0200 committer: Jens Axboe <axboe@kernel.dk> 2021-04-08 10:24:36 -0600 commit: d3c4a43d9291279c28b26757351a6ab72c110753 parent: 473338be3aaea117a7133720305f240eb7f68951
Commit Summary:
block: refactor blk_drop_partitions
Diffstat:
3 files changed, 4 insertions, 18 deletions
diff --git a/block/blk.h b/block/blk.h
index 8f4337c5a9e6..8b3591aee0a5 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -349,7 +349,6 @@ char *disk_name(struct gendisk *hd, int partno, char *buf);
 #define ADDPART_FLAG_NONE	0
 #define ADDPART_FLAG_RAID	1
 #define ADDPART_FLAG_WHOLEDISK	2
-void delete_partition(struct block_device *part);
 int bdev_add_partition(struct block_device *bdev, int partno,
 		sector_t start, sector_t length);
 int bdev_del_partition(struct block_device *bdev, int partno);
diff --git a/block/genhd.c b/block/genhd.c
index 15f99da4543f..8303ec67fd70 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -667,9 +667,6 @@ EXPORT_SYMBOL(device_add_disk_no_queue_reg);
  */
 void del_gendisk(struct gendisk *disk)
 {
-	struct disk_part_iter piter;
-	struct block_device *part;
-
 	might_sleep();
 
 	if (WARN_ON_ONCE(!disk->queue))
@@ -683,13 +680,7 @@ void del_gendisk(struct gendisk *disk)
 	 * disk is marked as dead (GENHD_FL_UP cleared).
 	 */
 	down_write(&bdev_lookup_sem);
-
-	/* invalidate stuff */
-	disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
-	while ((part = disk_part_iter_next(&piter)))
-		delete_partition(part);
-	disk_part_iter_exit(&piter);
-
+	blk_drop_partitions(disk);
 	fsync_bdev(disk->part0);
 	__invalidate_device(disk->part0, true);
 
diff --git a/block/partitions/core.c b/block/partitions/core.c
index 8c1735292940..536f7c5bb0b6 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -285,7 +285,7 @@ struct device_type part_type = {
  * Must be called either with bd_mutex held, before a disk can be opened or
  * after all disk users are gone.
  */
-void delete_partition(struct block_device *part)
+static void delete_partition(struct block_device *part)
 {
 	fsync_bdev(part);
 	__invalidate_device(part, true);
@@ -526,23 +526,15 @@ static bool disk_unlock_native_capacity(struct gendisk *disk)
 	}
 }
 
-int blk_drop_partitions(struct block_device *bdev)
+void blk_drop_partitions(struct gendisk *disk)
 {
 	struct disk_part_iter piter;
 	struct block_device *part;
 
-	if (bdev->bd_part_count)
-		return -EBUSY;
-
-	sync_blockdev(bdev);
-	invalidate_bdev(bdev);
-
-	disk_part_iter_init(&piter, bdev->bd_disk, DISK_PITER_INCL_EMPTY);
+	disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
 	while ((part = disk_part_iter_next(&piter)))
 		delete_partition(part);
 	disk_part_iter_exit(&piter);
-
-	return 0;
 }
 
 static bool blk_add_partition(struct gendisk *disk, struct block_device *bdev,