exec: replace call_usermodehelper_pipe with use of umh init function and resolve...
[linux-2.6.git] / kernel / kmod.c
index 531ef62..d154454 100644 (file)
@@ -147,23 +147,6 @@ static int ____call_usermodehelper(void *data)
        commit_creds(sub_info->cred);
        sub_info->cred = NULL;
 
-       /* Install input pipe when needed */
-       if (sub_info->stdin) {
-               struct files_struct *f = current->files;
-               struct fdtable *fdt;
-               /* no races because files should be private here */
-               sys_close(0);
-               fd_install(0, sub_info->stdin);
-               spin_lock(&f->file_lock);
-               fdt = files_fdtable(f);
-               FD_SET(0, fdt->open_fds);
-               FD_CLR(0, fdt->close_on_exec);
-               spin_unlock(&f->file_lock);
-
-               /* and disallow core files too */
-               current->signal->rlim[RLIMIT_CORE] = (struct rlimit){0, 0};
-       }
-
        /* We can run anywhere, unlike our parent keventd(). */
        set_cpus_allowed_ptr(current, cpu_all_mask);
 
@@ -429,35 +412,6 @@ void call_usermodehelper_setfns(struct subprocess_info *info,
 EXPORT_SYMBOL(call_usermodehelper_setfns);
 
 /**
- * call_usermodehelper_stdinpipe - set up a pipe to be used for stdin
- * @sub_info: a subprocess_info returned by call_usermodehelper_setup
- * @filp: set to the write-end of a pipe
- *
- * This constructs a pipe, and sets the read end to be the stdin of the
- * subprocess, and returns the write-end in *@filp.
- */
-int call_usermodehelper_stdinpipe(struct subprocess_info *sub_info,
-                                 struct file **filp)
-{
-       struct file *f;
-
-       f = create_write_pipe(0);
-       if (IS_ERR(f))
-               return PTR_ERR(f);
-       *filp = f;
-
-       f = create_read_pipe(f, 0);
-       if (IS_ERR(f)) {
-               free_write_pipe(*filp);
-               return PTR_ERR(f);
-       }
-       sub_info->stdin = f;
-
-       return 0;
-}
-EXPORT_SYMBOL(call_usermodehelper_stdinpipe);
-
-/**
  * call_usermodehelper_exec - start a usermode application
  * @sub_info: information about the subprocessa
  * @wait: wait for the application to finish and return status.
@@ -504,42 +458,6 @@ unlock:
 }
 EXPORT_SYMBOL(call_usermodehelper_exec);
 
-/**
- * call_usermodehelper_pipe - call a usermode helper process with a pipe stdin
- * @path: path to usermode executable
- * @argv: arg vector for process
- * @envp: environment for process
- * @filp: set to the write-end of a pipe
- *
- * This is a simple wrapper which executes a usermode-helper function
- * with a pipe as stdin.  It is implemented entirely in terms of
- * lower-level call_usermodehelper_* functions.
- */
-int call_usermodehelper_pipe(char *path, char **argv, char **envp,
-                            struct file **filp)
-{
-       struct subprocess_info *sub_info;
-       int ret;
-
-       sub_info = call_usermodehelper_setup(path, argv, envp,
-                                            GFP_KERNEL);
-       if (sub_info == NULL)
-               return -ENOMEM;
-
-       ret = call_usermodehelper_stdinpipe(sub_info, filp);
-       if (ret < 0) {
-               call_usermodehelper_freeinfo(sub_info);
-               return ret;
-       }
-
-       ret = call_usermodehelper_exec(sub_info, UMH_WAIT_EXEC);
-       if (ret < 0)    /* Failed to execute helper, close pipe */
-               filp_close(*filp, NULL);
-
-       return ret;
-}
-EXPORT_SYMBOL(call_usermodehelper_pipe);
-
 void __init usermodehelper_init(void)
 {
        khelper_wq = create_singlethread_workqueue("khelper");