Christoph Hellwig wrote: > On Mon, Oct 17, 2022 at 01:17:23PM -0700, Dan Williams wrote: > > Historically, no. The block-device is allowed to disappear while inodes > > are still live. > > Btw, while I agree with what you wrote below this sentence is at least > a bit confusing. Struct block_device/gendisk/request_queue will always > be valid as long as a file system is mounted and inodes are live due > to refcounting. It's just as you correctly pointed out del_gendisk > might have aready been called and they are dead.
Yes, when I said "allowed to disappear" I should have said "allowed to die".
