block: fold bdev_unhash_inode into invalidate_partition
invalidate_partition and bdev_unhash_inode are always paired, and
invalidate_partition already does an icache lookup for the block device
inode. Piggy back on that to remove the inode from the hash.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/genhd.c b/block/genhd.c
index 980a460..c05d509 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -888,6 +888,12 @@ static void invalidate_partition(struct gendisk *disk, int partno)
fsync_bdev(bdev);
__invalidate_device(bdev, true);
+
+ /*
+ * Unhash the bdev inode for this device so that it gets evicted as soon
+ * as last inode reference is dropped.
+ */
+ remove_inode_hash(bdev->bd_inode);
bdput(bdev);
}
@@ -909,13 +915,11 @@ void del_gendisk(struct gendisk *disk)
DISK_PITER_INCL_EMPTY | DISK_PITER_REVERSE);
while ((part = disk_part_iter_next(&piter))) {
invalidate_partition(disk, part->partno);
- bdev_unhash_inode(part_devt(part));
delete_partition(disk, part);
}
disk_part_iter_exit(&piter);
invalidate_partition(disk, 0);
- bdev_unhash_inode(disk_devt(disk));
set_capacity(disk, 0);
disk->flags &= ~GENHD_FL_UP;
up_write(&disk->lookup_sem);