Re: [PATCH v2 02/10] userns: Add per user namespace sysctls.

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"Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> writes:

> Limit per userns sysctls to only be opened for write by a holder
> of CAP_SYS_RESOURCE.
>
> Add all of the necessary boilerplate for having per user namespace
> sysctls.

> @@ -141,6 +215,7 @@ void free_user_ns(struct user_namespace *ns)
>  
>  	do {
>  		parent = ns->parent;
> +		retire_userns_sysctls(ns);
^^^^^^^^^^ Unfortunately it is not safe to call a sleeping function here
           so this part needs to be taken back to the drawing board.
 
           Which means this change gets has to wait for next cycle.
>  #ifdef CONFIG_PERSISTENT_KEYRINGS
>  		key_put(ns->persistent_keyring_register);
>  #endif

Eric
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