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author | Boaz Harrosh <bharrosh@panasas.com> | 2012-05-31 16:26:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-31 17:49:28 -0700 |
commit | 785042f2e275089e22c36b462f6495ce8d91732d (patch) | |
tree | 4e847408b4e675c7c616d357ae9b330f7104fbc0 /include/linux/kmod.h | |
parent | 81ab6e7b26b453a795d46f2616ed0e31d97f05b9 (diff) | |
download | linux-stable-785042f2e275089e22c36b462f6495ce8d91732d.tar.gz linux-stable-785042f2e275089e22c36b462f6495ce8d91732d.tar.bz2 linux-stable-785042f2e275089e22c36b462f6495ce8d91732d.zip |
kmod: move call_usermodehelper_fns() to .c file and unexport all it's helpers
If we move call_usermodehelper_fns() to kmod.c file and EXPORT_SYMBOL it
we can avoid exporting all it's helper functions:
call_usermodehelper_setup
call_usermodehelper_setfns
call_usermodehelper_exec
And make all of them static to kmod.c
Since the optimizer will see all these as a single call site it will
inline them inside call_usermodehelper_fns(). So we loose the call to
_fns but gain 3 calls to the helpers. (Not that it matters)
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
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 | 30 |
1 files changed, 2 insertions, 28 deletions
diff --git a/include/linux/kmod.h b/include/linux/kmod.h index f07f9a4e10ff..5398d5807075 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -66,36 +66,10 @@ struct subprocess_info { void *data; }; -/* Allocate a subprocess_info structure */ -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_setfns(struct subprocess_info *info, - int (*init)(struct subprocess_info *info, struct cred *new), - void (*cleanup)(struct subprocess_info *info), - void *data); - -/* Actually execute the sub-process */ -int call_usermodehelper_exec(struct subprocess_info *info, int wait); - -static inline int +extern int call_usermodehelper_fns(char *path, char **argv, char **envp, int wait, int (*init)(struct subprocess_info *info, struct cred *new), - void (*cleanup)(struct subprocess_info *), void *data) -{ - 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_setfns(info, init, cleanup, data); - - return call_usermodehelper_exec(info, wait); -} + void (*cleanup)(struct subprocess_info *), void *data); static inline int call_usermodehelper(char *path, char **argv, char **envp, int wait) |