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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 /include/linux/kmod.h | |
| parent | exec: replace call_usermodehelper_pipe with use of umh init function and resolve limit (diff) | |
| download | linux-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 'include/linux/kmod.h')
| -rw-r--r-- | include/linux/kmod.h | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 5c058778ad35..d876dce217f0 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -72,8 +72,6 @@ struct subprocess_info *call_usermodehelper_setup(char *path, char **argv, char **envp, gfp_t gfp_mask); /* Set various pieces of state into the subprocess_info structure */ -void call_usermodehelper_setkeys(struct subprocess_info *info, - struct key *session_keyring); void call_usermodehelper_setfns(struct subprocess_info *info, int (*init)(struct subprocess_info *info), void (*cleanup)(struct subprocess_info *info), @@ -112,21 +110,6 @@ call_usermodehelper(char *path, char **argv, char **envp, enum umh_wait wait) NULL, NULL, NULL); } -static inline int -call_usermodehelper_keys(char *path, char **argv, char **envp, - struct key *session_keyring, enum umh_wait wait) -{ - struct subprocess_info *info; - gfp_t gfp_mask = (wait == UMH_NO_WAIT) ? GFP_ATOMIC : GFP_KERNEL; - - info = call_usermodehelper_setup(path, argv, envp, gfp_mask); - if (info == NULL) - return -ENOMEM; - - call_usermodehelper_setkeys(info, session_keyring); - return call_usermodehelper_exec(info, wait); -} - extern void usermodehelper_init(void); extern int usermodehelper_disable(void); |