Re: [dm-devel] [PATCH 04/26] block: add a flag to make put_disk on partially initalized disks safer
- From
- Luis Chamberlain <mcgrof@kernel.org>
- Date
- 2021-05-21 17:28:47
- Also in
- dm-devel, linux-bcache, linux-block, linux-m68k, linux-mmc, linux-nvme, linux-s390, linuxppc-dev, nvdimm
- Reply to
- Christoph Hellwig, 2021-05-21
On Fri, May 21, 2021 at 07:50:54AM +0200, Christoph Hellwig wrote:
Add a flag to indicate that __device_add_disk did grab a queue reference so that disk_release only drops it if we actually had it. This sort out one of the major pitfals with partially initialized gendisk that a lot of drivers did get wrong or still do. Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Luis