diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2012-03-23 15:02:49 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-03-06 03:24:28 +0000 |
| commit | 95b467ca30d2e56c08fbe541a02318470457cca7 (patch) | |
| tree | 8248fd54721faf7c89535368d69603cad6549c9c | |
| parent | 9aa0f9b368807533afd246b0e2e3a72fae9c7c98 (diff) | |
kmod: introduce call_modprobe() helper
commit 3e63a93b987685f02421e18b2aa452d20553a88b upstream.
No functional changes. Move the call_usermodehelper code from
__request_module() into the new simple helper, call_modprobe().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | kernel/kmod.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c index dedcd0b8a98..135041fcef5 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -58,6 +58,21 @@ static DEFINE_SPINLOCK(umh_sysctl_lock); */ char modprobe_path[KMOD_PATH_LEN] = "/sbin/modprobe"; +static int call_modprobe(char *module_name, int wait) +{ + static char *envp[] = { + "HOME=/", + "TERM=linux", + "PATH=/sbin:/usr/sbin:/bin:/usr/bin", + NULL + }; + + char *argv[] = { modprobe_path, "-q", "--", module_name, NULL }; + + return call_usermodehelper_fns(modprobe_path, argv, envp, + wait, NULL, NULL, NULL); +} + /** * __request_module - try to load a kernel module * @wait: wait (or not) for the operation to complete @@ -79,11 +94,6 @@ int __request_module(bool wait, const char *fmt, ...) char module_name[MODULE_NAME_LEN]; unsigned int max_modprobes; int ret; - char *argv[] = { modprobe_path, "-q", "--", module_name, NULL }; - static char *envp[] = { "HOME=/", - "TERM=linux", - "PATH=/sbin:/usr/sbin:/bin:/usr/bin", - NULL }; static atomic_t kmod_concurrent = ATOMIC_INIT(0); #define MAX_KMOD_CONCURRENT 50 /* Completely arbitrary value - KAO */ static int kmod_loop_msg; @@ -126,9 +136,7 @@ int __request_module(bool wait, const char *fmt, ...) trace_module_request(module_name, wait, _RET_IP_); - ret = call_usermodehelper_fns(modprobe_path, argv, envp, - wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC, - NULL, NULL, NULL); + ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC); atomic_dec(&kmod_concurrent); return ret; |