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| author | Christoph Hellwig <hch@lst.de> | 2021-05-25 08:12:59 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-06-01 07:45:27 -0600 |
| commit | ab4b57057d744861f670b47b163209727b26418b (patch) | |
| tree | 2d978987284bb49a1b3b466fabdb62f680694210 | |
| parent | c8276b954d2dacbabe587c0421a9344529af5bad (diff) | |
| download | linux-ab4b57057d744861f670b47b163209727b26418b.tar.gz linux-ab4b57057d744861f670b47b163209727b26418b.tar.bz2 linux-ab4b57057d744861f670b47b163209727b26418b.zip | |
block: move bd_part_count to struct gendisk
The bd_part_count value only makes sense for whole devices, so move it
to struct gendisk and give it a more descriptive name.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210525061301.2242282-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/ioctl.c | 2 | ||||
| -rw-r--r-- | fs/block_dev.c | 6 | ||||
| -rw-r--r-- | include/linux/blk_types.h | 3 | ||||
| -rw-r--r-- | include/linux/genhd.h | 1 |
4 files changed, 5 insertions, 7 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index 8ba1ed8defd0..24beec9ca9c9 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -89,7 +89,7 @@ static int blkdev_reread_part(struct block_device *bdev, fmode_t mode) return -EINVAL; if (!capable(CAP_SYS_ADMIN)) return -EACCES; - if (bdev->bd_part_count) + if (bdev->bd_disk->open_partitions) return -EBUSY; /* diff --git a/fs/block_dev.c b/fs/block_dev.c index cd45b54e86b4..ac9b3c158a77 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1253,7 +1253,7 @@ int bdev_disk_changed(struct block_device *bdev, bool invalidate) return -ENXIO; rescan: - if (bdev->bd_part_count) + if (disk->open_partitions) return -EBUSY; sync_blockdev(bdev); invalidate_bdev(bdev); @@ -1348,7 +1348,7 @@ static int blkdev_get_part(struct block_device *part, fmode_t mode) if (!bdev_nr_sectors(part)) goto out_blkdev_put; - whole->bd_part_count++; + disk->open_partitions++; set_init_blocksize(part); if (part->bd_bdi == &noop_backing_dev_info) part->bd_bdi = bdi_get(disk->queue->backing_dev_info); @@ -1370,7 +1370,7 @@ static void blkdev_put_part(struct block_device *part, fmode_t mode) if (--part->bd_openers) return; blkdev_flush_mapping(part); - whole->bd_part_count--; + whole->bd_disk->open_partitions--; blkdev_put_whole(whole, mode); bdput(whole); } diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index a09660671fa4..fd3860d18d7e 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -39,9 +39,6 @@ struct block_device { #endif struct kobject *bd_holder_dir; u8 bd_partno; - /* number of times partitions within this device have been opened. */ - unsigned bd_part_count; - spinlock_t bd_size_lock; /* for bd_inode->i_size updates */ struct gendisk * bd_disk; struct backing_dev_info *bd_bdi; diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 1fabb1559110..47d4605c0e7e 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -156,6 +156,7 @@ struct gendisk { #define GD_QUEUE_REF 2 struct mutex open_mutex; /* open/close mutex */ + unsigned open_partitions; /* number of open partitions */ struct kobject *slave_dir; |