diff options
| author | Christoph Hellwig | 2021-11-22 14:06:22 +0100 |
|---|---|---|
| committer | Jens Axboe | 2021-11-29 06:38:35 -0700 |
| commit | 1ebe2e5f9d68e94c524aba876f27b945669a7879 (patch) | |
| tree | e0de8a0a5eb068a3de89c5cf346730ea9e1349b6 /drivers/md | |
| parent | 3b5149ac50970669ee0ddb9629ec77ffd5c0622d (diff) | |
block: remove GENHD_FL_EXT_DEVT
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 <hch@lst.de>
Link: https://lore.kernel.org/r/20211122130625.1136848-12-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm.c | 1 | ||||
| -rw-r--r-- | drivers/md/md.c | 5 |
2 files changed, 1 insertions, 5 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 662742a310cb..280918cdcabd 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1778,6 +1778,7 @@ static struct mapped_device *alloc_dev(int minor) md->disk->major = _major; md->disk->first_minor = minor; md->disk->minors = 1; + md->disk->flags |= GENHD_FL_NO_PART; md->disk->fops = &dm_blk_dops; md->disk->queue = md->queue; md->disk->private_data = md; diff --git a/drivers/md/md.c b/drivers/md/md.c index 5111ed966947..7fbf6f0ac01b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5707,11 +5707,6 @@ static int md_alloc(dev_t dev, char *name) mddev->queue = disk->queue; blk_set_stacking_limits(&mddev->queue->limits); blk_queue_write_cache(mddev->queue, true, true); - /* Allow extended partitions. This makes the - * 'mdp' device redundant, but we can't really - * remove it now. - */ - disk->flags |= GENHD_FL_EXT_DEVT; disk->events |= DISK_EVENT_MEDIA_CHANGE; mddev->gendisk = disk; error = add_disk(disk); |