@@ -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;
/*
@@ -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);
}
@@ -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;
@@ -155,6 +155,7 @@ struct gendisk {
#define GD_READ_ONLY 1
struct mutex open_mutex; /* open/close mutex */
+ unsigned open_partitions; /* number of open partitions */
struct kobject *slave_dir;
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> --- block/ioctl.c | 2 +- fs/block_dev.c | 6 +++--- include/linux/blk_types.h | 3 --- include/linux/genhd.h | 1 + 4 files changed, 5 insertions(+), 7 deletions(-)