block: switch partition lookup to use struct block_device
Use struct block_device to lookup partitions on a disk. This removes
all usage of struct hd_struct from the I/O path.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Coly Li <colyli@suse.de> [bcache]
Acked-by: Chao Yu <yuchao0@huawei.com> [f2fs]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/bio.c b/block/bio.c
index 669bb47a..ebb1813 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -608,12 +608,12 @@ void bio_truncate(struct bio *bio, unsigned new_size)
void guard_bio_eod(struct bio *bio)
{
sector_t maxsector;
- struct hd_struct *part;
+ struct block_device *part;
rcu_read_lock();
part = __disk_get_part(bio->bi_disk, bio->bi_partno);
if (part)
- maxsector = bdev_nr_sectors(part->bdev);
+ maxsector = bdev_nr_sectors(part);
else
maxsector = get_capacity(bio->bi_disk);
rcu_read_unlock();