Re: [PATCH 1/2] watch_queue: make locked_vm accessible

[Jens Axboe]

On 9/6/19 9:32 AM, Arnd Bergmann wrote:
> The locked_vm member of struct user_struct is guarded by an #ifdef,
> which breaks building the new watch_queue driver when all the other
> subsystems that need it are disabled:
> 
> drivers/misc/watch_queue.c:315:38: error: no member named 'locked_vm' in 'struct user_struct'; did you mean 'locked_shm'?
> 
> Add watch_queue to the list.

Should we either:

1) Make it unconditionally available

or

2) Introduce a symbol for this that others can select, like
   CONFIG_NEEDS_USER_LOCKED_VM or something like that.

?

-- 
Jens Axboe