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block: remove GENHD_FL_EXT_DEVT

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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>
This commit is contained in:
Christoph Hellwig
2021-11-22 14:06:22 +01:00
committed by Jens Axboe
parent 3b5149ac50
commit 1ebe2e5f9d
27 changed files with 30 additions and 48 deletions
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1
drivers/block/swim.c
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@@ -840,6 +840,7 @@ static int swim_floppy_init(struct swim_priv *swd)
swd->unit[drive].disk->minors = 1;
sprintf(swd->unit[drive].disk->disk_name, "fd%d", drive);
swd->unit[drive].disk->fops = &floppy_fops;
swd->unit[drive].disk->flags |= GENHD_FL_NO_PART;
swd->unit[drive].disk->events = DISK_EVENT_MEDIA_CHANGE;
swd->unit[drive].disk->private_data = &swd->unit[drive];
set_capacity(swd->unit[drive].disk, 2880);