kernel/include/linux/genhd.h, branch linux-6.12.y

block: remove genhd.h

2022-02-02T14:49:59Z

There is no good reason to keep genhd.h separate from the main blkdev.h header that includes it. So fold the contents of genhd.h into blkdev.h and remove genhd.h entirely. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20220124093913.742411-4-hch@lst.de Signed-off-by: Jens Axboe

block: move blk_drop_partitions to blk.h

2022-02-02T14:49:58Z

No need to have this declaration in a public header. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20220124093913.742411-3-hch@lst.de Signed-off-by: Jens Axboe

block: move disk_{block,unblock,flush}_events to blk.h

2022-02-02T14:49:58Z

No need to have these declarations in a public header. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20220124093913.742411-2-hch@lst.de Signed-off-by: Jens Axboe

block: cleanup the GENHD_FL_* definitions

2021-11-29T13:38:35Z

Switch to an enum and tidy up the documentation. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211122130625.1136848-14-hch@lst.de Signed-off-by: Jens Axboe

block: remove GENHD_FL_EXT_DEVT

2021-11-29T13:38:35Z

All modern drivers can support extra partitions using the extended dev_t. In fact except for the ioctl method drivers never even see partitions in normal operation. So remove the GENHD_FL_EXT_DEVT and allow extra partitions for all block devices that do support partitions, and require those that do not support partitions to explicit disallow them using GENHD_FL_NO_PART. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211122130625.1136848-12-hch@lst.de Signed-off-by: Jens Axboe

block: remove GENHD_FL_SUPPRESS_PARTITION_INFO

2021-11-29T13:38:35Z

This flag is not set directly anywhere and only inherited from GENHD_FL_HIDDEN. Just check for GENHD_FL_HIDDEN instead. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211122130625.1136848-11-hch@lst.de Signed-off-by: Jens Axboe

block: rename GENHD_FL_NO_PART_SCAN to GENHD_FL_NO_PART

2021-11-29T13:35:21Z

The GENHD_FL_NO_PART_SCAN controls more than just partitions canning, so rename it to GENHD_FL_NO_PART. Signed-off-by: Christoph Hellwig Acked-by: Ulf Hansson Link: https://lore.kernel.org/r/20211122130625.1136848-7-hch@lst.de Signed-off-by: Jens Axboe

block: remove GENHD_FL_CD

2021-11-29T13:35:21Z

GENHD_FL_CD marks a gendisk as a vaguely CD-ROM like device. Besides being used internally inside of sunvdc.c an xen-blkfront it is used by xen-blkback as a hint to claim a device exported to a guest is a CD-ROM like device. Just check for disk->cdi instead which is the right indicator for "real" CD-ROM or DVD drivers. This will miss the paravirtualized guest drivers, but those make little sense to report anyway. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211122130625.1136848-4-hch@lst.de Signed-off-by: Jens Axboe

block: move GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE to disk->event_flags

2021-11-29T13:35:21Z

GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE is all about the event reporting mechanism, so move it to the event_flags field. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211122130625.1136848-3-hch@lst.de Signed-off-by: Jens Axboe

block: move GENHD_FL_NATIVE_CAPACITY to disk->state

2021-11-29T13:35:21Z

The flag to indicate an unlocked native capacity is dynamic state, not a driver capability flag, so move it to disk->state. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211122130625.1136848-2-hch@lst.de Signed-off-by: Jens Axboe