Re: [PATCHv2 2/2] i915: do not leak module ref counter

[Christoph Hellwig]

On Tue, Aug 20, 2019 at 12:13:59PM +0900, Sergey Senozhatsky wrote:
> Always put_filesystem() in i915_gemfs_init().
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
> ---
>  - v2: rebased (i915 does not remount gemfs anymore)

Which means it real doesn't need its mount anyore, and thus can use
plain old shmem_file_setup and doesn't need to mess with file system
types at all.

Assuming we find a legitimate rason for why a driver should be able
to create a kernel mount or a file system type where it doesn't have
access to the struct file_system_type an API that mount by file system
name and thus hides the get_fs_type and put_filesystem would be a much
better API than adding this random export.