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| author | Christoph Hellwig <hch@lst.de> | 2020-11-27 16:43:51 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-12-01 14:53:40 -0700 |
| commit | 0d02129e76edf91cf04fabf1efbc3a9a1f1d729a (patch) | |
| tree | 20fd7e1e54d4430038eb74d8e276decee65ee7c3 /fs/block_dev.c | |
| parent | 9499ffc7521742e3fea32f6ac6c1213b6fc4e914 (diff) | |
| download | linux-0d02129e76edf91cf04fabf1efbc3a9a1f1d729a.tar.gz linux-0d02129e76edf91cf04fabf1efbc3a9a1f1d729a.tar.bz2 linux-0d02129e76edf91cf04fabf1efbc3a9a1f1d729a.zip | |
block: merge struct block_device and struct hd_struct
Instead of having two structures that represent each block device with
different life time rules, merge them into a single one. This also
greatly simplifies the reference counting rules, as we can use the inode
reference count as the main reference count for the new struct
block_device, with the device model reference front ending it for device
model interaction.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 61cf33b6284f..a9905d8fd02b 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -39,7 +39,6 @@ struct bdev_inode { struct block_device bdev; - struct hd_struct hd; struct inode vfs_inode; }; @@ -887,9 +886,6 @@ struct block_device *bdev_alloc(struct gendisk *disk, u8 partno) iput(inode); return NULL; } - bdev->bd_part = &BDEV_I(inode)->hd; - memset(bdev->bd_part, 0, sizeof(*bdev->bd_part)); - bdev->bd_part->bdev = bdev; return bdev; } @@ -926,11 +922,6 @@ struct block_device *bdgrab(struct block_device *bdev) } EXPORT_SYMBOL(bdgrab); -struct block_device *bdget_part(struct hd_struct *part) -{ - return bdget(part_devt(part)); -} - long nr_blockdev_pages(void) { struct inode *inode; |