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usermodehelper: introduce umh_complete(sub_info) 

Preparation.  Add the new trivial helper, umh_complete().  Currently it
simply does complete(sub_info->complete).

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>
This commit is contained in:
Oleg Nesterov 2012-03-23 15:02:47 -07:00 committed by Linus Torvalds
parent 70834d3070
commit b344992250
1 changed files with 7 additions and 2 deletions
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9
kernel/kmod.c
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@ -199,6 +199,11 @@ void call_usermodehelper_freeinfo(struct subprocess_info *info)
}
EXPORT_SYMBOL(call_usermodehelper_freeinfo);
static void umh_complete(struct subprocess_info *sub_info)
{
complete(sub_info->complete);
}
/* Keventd can't block, but this (a child) can. */
static int wait_for_helper(void *data)
{
@ -235,7 +240,7 @@ static int wait_for_helper(void *data)
sub_info->retval = ret;
}
complete(sub_info->complete);
umh_complete(sub_info);
return 0;
}
@ -269,7 +274,7 @@ static void __call_usermodehelper(struct work_struct *work)
case UMH_WAIT_EXEC:
if (pid < 0)
sub_info->retval = pid;
complete(sub_info->complete);
umh_complete(sub_info);
}
}