[PATCH 41/45] block: pass a block_device to invalidate_partition

[Christoph Hellwig]

Pass the block_device actually needed instead of looking it up using
bdget_disk.

Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 block/genhd.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/block/genhd.c b/block/genhd.c
index 498c816e90df64..2985740eab084b 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -790,14 +790,8 @@ void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk)
 }
 EXPORT_SYMBOL(device_add_disk_no_queue_reg);
 
-static void invalidate_partition(struct gendisk *disk, int partno)
+static void invalidate_partition(struct block_device *bdev)
 {
-	struct block_device *bdev;
-
-	bdev = bdget_disk(disk, partno);
-	if (!bdev)
-		return;
-
 	fsync_bdev(bdev);
 	__invalidate_device(bdev, true);
 
@@ -806,7 +800,6 @@ static void invalidate_partition(struct gendisk *disk, int partno)
 	 * as last inode reference is dropped.
 	 */
 	remove_inode_hash(bdev->bd_inode);
-	bdput(bdev);
 }
 
 /**
@@ -847,12 +840,12 @@ void del_gendisk(struct gendisk *disk)
 	disk_part_iter_init(&piter, disk,
 			     DISK_PITER_INCL_EMPTY | DISK_PITER_REVERSE);
 	while ((part = disk_part_iter_next(&piter))) {
-		invalidate_partition(disk, part->bdev->bd_partno);
+		invalidate_partition(part->bdev);
 		delete_partition(part);
 	}
 	disk_part_iter_exit(&piter);
 
-	invalidate_partition(disk, 0);
+	invalidate_partition(disk->part0);
 	set_capacity(disk, 0);
 
 	if (!(disk->flags & GENHD_FL_HIDDEN)) {
-- 
2.29.2