Re: block: sleeping in atomic warnings

[Eric Biggers]

On Tue, Feb 07, 2023 at 07:35:54PM +0000, Eric Biggers wrote:
> Now, it's possible that "the kernel automatically adds the key for
> test_dummy_encryption" could be implemented a bit differently.  It maybe could
> be done at the last minute, when the key is being looked for due to a user
> filesystem operation, instead of during the mount itself.  That would eliminate
> the need to call fscrypt_destroy_keyring() from __put_super(), which would avoid
> the issue being discussed here.  I'll see if there's a good way to do that.

"[PATCH 0/5] Add the test_dummy_encryption key on-demand"
(https://lore.kernel.org/linux-fscrypt/20230208062107.199831-1-ebiggers@xxxxxxxxxx/T/#u)
implements this.

- Eric