On 11/16/20 3:58 PM, Christoph Hellwig wrote:
Instead of having two structures that represent each block device with
different lift time rules merged 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. The percpu refcount in struct hd_struct is entirely
gone given that struct block_device must be opened and thus valid for
the duration of the I/O.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
block/bio.c | 6 +-
block/blk-cgroup.c | 9 +-
block/blk-core.c | 85 +++++-----
block/blk-flush.c | 2 +-
block/blk-lib.c | 2 +-
block/blk-merge.c | 6 +-
block/blk-mq.c | 11 +-
block/blk-mq.h | 5 +-
block/blk.h | 38 ++---
block/genhd.c | 242 +++++++++++------------------
block/ioctl.c | 4 +-
block/partitions/core.c | 221 +++++++-------------------
drivers/block/drbd/drbd_receiver.c | 2 +-
drivers/block/drbd/drbd_worker.c | 2 +-
drivers/block/zram/zram_drv.c | 2 +-
drivers/md/bcache/request.c | 4 +-
drivers/md/dm.c | 8 +-
drivers/md/md.c | 4 +-
drivers/nvme/target/admin-cmd.c | 20 +--
drivers/s390/block/dasd.c | 8 +-
fs/block_dev.c | 68 +++-----
fs/ext4/super.c | 18 +--
fs/ext4/sysfs.c | 10 +-
fs/f2fs/checkpoint.c | 5 +-
fs/f2fs/f2fs.h | 2 +-
fs/f2fs/super.c | 6 +-
fs/f2fs/sysfs.c | 9 --
include/linux/blk_types.h | 23 ++-
include/linux/blkdev.h | 13 +-
include/linux/genhd.h | 67 ++------
include/linux/part_stat.h | 17 +-
init/do_mounts.c | 20 +--
kernel/trace/blktrace.c | 54 ++-----
33 files changed, 351 insertions(+), 642 deletions(-)
Reviewed-by: Hannes Reinecke <h...@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
h...@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
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