block: remove GENHD_FL_UP
Just check inode_unhashed on the whole device bdev inode instead,
and provide a helper to check for that information.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210809064028.1198327-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/fs/block_dev.c b/fs/block_dev.c
index e1c14c2..38a8b0e 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1218,7 +1218,7 @@ struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder)
mutex_lock(&disk->open_mutex);
ret = -ENXIO;
- if (!(disk->flags & GENHD_FL_UP))
+ if (!disk_live(disk))
goto abort_claiming;
if (bdev_is_partition(bdev))
ret = blkdev_get_part(bdev, mode);