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| author | Oleg Nesterov <oleg@redhat.com> | 2010-05-26 14:43:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-27 09:12:45 -0700 |
| commit | 685bfd2c48bb3284d31e73ff3151c957d76deda9 (patch) | |
| tree | 177210787515f48c0eaad5216bd012f4a2fb2149 /kernel/kmod.c | |
| parent | 898b374af6f71041bd3bceebe257e564f3f1d458 (diff) | |
| download | lwn-685bfd2c48bb3284d31e73ff3151c957d76deda9.tar.gz lwn-685bfd2c48bb3284d31e73ff3151c957d76deda9.zip | |
umh: creds: convert call_usermodehelper_keys() to use subprocess_info->init()
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@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kmod.c')
| -rw-r--r-- | kernel/kmod.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c index d1544547fea6..743d3883517c 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -367,24 +367,6 @@ struct subprocess_info *call_usermodehelper_setup(char *path, char **argv, EXPORT_SYMBOL(call_usermodehelper_setup); /** - * call_usermodehelper_setkeys - set the session keys for usermode helper - * @info: a subprocess_info returned by call_usermodehelper_setup - * @session_keyring: the session keyring for the process - */ -void call_usermodehelper_setkeys(struct subprocess_info *info, - struct key *session_keyring) -{ -#ifdef CONFIG_KEYS - struct thread_group_cred *tgcred = info->cred->tgcred; - key_put(tgcred->session_keyring); - tgcred->session_keyring = key_get(session_keyring); -#else - BUG(); -#endif -} -EXPORT_SYMBOL(call_usermodehelper_setkeys); - -/** * call_usermodehelper_setfns - set a cleanup/init function * @info: a subprocess_info returned by call_usermodehelper_setup * @cleanup: a cleanup function |