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authorOleg Nesterov <oleg@redhat.com>2010-05-26 14:43:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:45 -0700
commit685bfd2c48bb3284d31e73ff3151c957d76deda9 (patch)
tree177210787515f48c0eaad5216bd012f4a2fb2149 /kernel
parentexec: replace call_usermodehelper_pipe with use of umh init function and resolve limit (diff)
downloadlinux-dev-685bfd2c48bb3284d31e73ff3151c957d76deda9.tar.xz
linux-dev-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')
-rw-r--r--kernel/kmod.c18
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