block: don't add or resize partition on the disk with GENHD_FL_NO_PART

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commit 1a721de848 upstream.

Commit a33df75c63 ("block: use an xarray for disk->part_tbl") remove
disk_expand_part_tbl() in add_partition(), which means all kinds of
devices will support extended dynamic `dev_t`.
However, some devices with GENHD_FL_NO_PART are not expected to add or
resize partition.
Fix this by adding check of GENHD_FL_NO_PART before add or resize
partition.

Fixes: a33df75c63 ("block: use an xarray for disk->part_tbl")
Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230831075900.1725842-1-lilingfeng@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Li Lingfeng 2023-08-31 15:59:00 +08:00 • committed by Greg Kroah-Hartman

parent 1654635bed

commit 5e4e9900e6

1 changed files with 2 additions and 0 deletions

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block/ioctl.c

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