Re: [PATCH,RESEND -mm 1/2] umh && creds: convert call_usermodehelper_keys() to use subprocess_info->init()

From: David Howells
Date: Mon Mar 08 2010 - 08:20:07 EST


Oleg Nesterov <oleg@xxxxxxxxxx> wrote:

> (on top of kmod-replace-call_usermodehelper_pipe-with-use-of-umh-init-function-and-resolve-limit.patch)
>
> call_usermodehelper_keys() uses call_usermodehelper_setkeys() to change
> subprocess_info->cred in advance. Now that we have info->init() we can
> change this code to set tgcred->session_keyring in context of execing
> kernel thread.
>
> Note: since currently call_usermodehelper_keys() is never called with
> UMH_NO_WAIT, call_usermodehelper_keys()->key_get() and umh_keys_cleanup()
> are not really needed, we could rely on install_session_keyring_to_cred()
> which does key_get() on success.
>
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
> Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>

Acked-by: David Howells <dhowells@xxxxxxxxxx>
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