kill daemonize()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
index 0c9e8958009b28230f8fbbe691057b54d0df0781..39db582ab1a687c6a16c797ad025ea64c6877222 100644 (file)
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -701,8 +701,6 @@ static int k_mode_thread(void *arg)
        unsigned long flags, flags2, expire;
        int ret;
 
-       daemonize("k_mode_wimax");
-
        while (!k_mode_stop) {
 
                spin_lock_irqsave(&k_lock, flags2);
@@ -764,7 +762,7 @@ static struct usb_driver gdm_usb_driver = {
 static int __init usb_gdm_wimax_init(void)
 {
 #ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-       kthread_run(k_mode_thread, NULL, "WiMax_thread");
+       kthread_run(k_mode_thread, NULL, "k_mode_wimax");
 #endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
        return usb_register(&gdm_usb_driver);
 }

diff --git a/fs/file.c b/fs/file.c
index d3b5fa80b71b76a973919a6b9cfa2ebb34096adf..ec20de9dc6be307a4be77757eb932f7f43a7491a 100644 (file)
--- a/fs/file.c
+++ b/fs/file.c
@@ -519,12 +519,6 @@ struct files_struct init_files = {
        .file_lock      = __SPIN_LOCK_UNLOCKED(init_task.file_lock),
 };
 
-void daemonize_descriptors(void)
-{
-       atomic_inc(&init_files.count);
-       reset_files_struct(&init_files);
-}
-
 /*
  * allocate a file descriptor, mark it busy.
  */

diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 5df4775fea03638f14d1408cfe16408e8a0ed6d7..fe6ca583bbc02b3513a2b3f76bb4b169c0f7d41c 100644 (file)
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -164,27 +164,3 @@ struct fs_struct init_fs = {
        .seq            = SEQCNT_ZERO,
        .umask          = 0022,
 };
-
-void daemonize_fs_struct(void)
-{
-       struct fs_struct *fs = current->fs;
-
-       if (fs) {
-               int kill;
-
-               task_lock(current);
-
-               spin_lock(&init_fs.lock);
-               init_fs.users++;
-               spin_unlock(&init_fs.lock);
-
-               spin_lock(&fs->lock);
-               current->fs = &init_fs;
-               kill = !--fs->users;
-               spin_unlock(&fs->lock);
-
-               task_unlock(current);
-               if (kill)
-                       free_fs_struct(fs);
-       }
-}

diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 45052aa814c899e4c88bb2d66ab8f9dc58a42d2b..fb7dacae052274fb17089f0ace563b3933f27572 100644 (file)
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -95,7 +95,6 @@ struct task_struct;
 struct files_struct *get_files_struct(struct task_struct *);
 void put_files_struct(struct files_struct *fs);
 void reset_files_struct(struct files_struct *);
-void daemonize_descriptors(void);
 int unshare_files(struct files_struct **);
 struct files_struct *dup_fd(struct files_struct *, int *);
 void do_close_on_exec(struct files_struct *);

diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 003dc0fd73473a8e03cb23a163d7ae2ee547fa93..d0ae3a84bcfb1e65b25a064bf17818ea2cf5d8aa 100644 (file)
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -21,7 +21,6 @@ extern void set_fs_root(struct fs_struct *, struct path *);
 extern void set_fs_pwd(struct fs_struct *, struct path *);
 extern struct fs_struct *copy_fs_struct(struct fs_struct *);
 extern void free_fs_struct(struct fs_struct *);
-extern void daemonize_fs_struct(void);
 extern int unshare_fs_struct(void);
 
 static inline void get_fs_root(struct fs_struct *fs, struct path *root)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 0dd42a02df2e851e0847df640dd559f3689c36ed..a0166481eb203e090562310fc91d6c107dd14438 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2283,7 +2283,6 @@ extern void flush_itimer_signals(void);
 
 extern void do_group_exit(int);
 
-extern void daemonize(const char *, ...);
 extern int allow_signal(int);
 extern int disallow_signal(int);
 

diff --git a/kernel/exit.c b/kernel/exit.c
index 346616c0092cfe3993fbcfb9b7f36d0d02986fb2..f9275e2c7c2cf90ad94c517ed09f7d6eb36fc82b 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -322,43 +322,6 @@ kill_orphaned_pgrp(struct task_struct *tsk, struct task_struct *parent)
        }
 }
 
-/**
- * reparent_to_kthreadd - Reparent the calling kernel thread to kthreadd
- *
- * If a kernel thread is launched as a result of a system call, or if
- * it ever exits, it should generally reparent itself to kthreadd so it
- * isn't in the way of other processes and is correctly cleaned up on exit.
- *
- * The various task state such as scheduling policy and priority may have
- * been inherited from a user process, so we reset them to sane values here.
- *
- * NOTE that reparent_to_kthreadd() gives the caller full capabilities.
- */
-static void reparent_to_kthreadd(void)
-{
-       write_lock_irq(&tasklist_lock);
-
-       ptrace_unlink(current);
-       /* Reparent to init */
-       current->real_parent = current->parent = kthreadd_task;
-       list_move_tail(&current->sibling, &current->real_parent->children);
-
-       /* Set the exit signal to SIGCHLD so we signal init on exit */
-       current->exit_signal = SIGCHLD;
-
-       if (task_nice(current) < 0)
-               set_user_nice(current, 0);
-       /* cpus_allowed? */
-       /* rt_priority? */
-       /* signals? */
-       memcpy(current->signal->rlim, init_task.signal->rlim,
-              sizeof(current->signal->rlim));
-
-       atomic_inc(&init_cred.usage);
-       commit_creds(&init_cred);
-       write_unlock_irq(&tasklist_lock);
-}
-
 void __set_special_pids(struct pid *pid)
 {
        struct task_struct *curr = current->group_leader;
@@ -370,13 +333,6 @@ void __set_special_pids(struct pid *pid)
                change_pid(curr, PIDTYPE_PGID, pid);
 }
 
-static void set_special_pids(struct pid *pid)
-{
-       write_lock_irq(&tasklist_lock);
-       __set_special_pids(pid);
-       write_unlock_irq(&tasklist_lock);
-}
-
 /*
  * Let kernel threads use this to say that they allow a certain signal.
  * Must not be used if kthread was cloned with CLONE_SIGHAND.
@@ -416,54 +372,6 @@ int disallow_signal(int sig)
 
 EXPORT_SYMBOL(disallow_signal);
 
-/*
- *     Put all the gunge required to become a kernel thread without
- *     attached user resources in one place where it belongs.
- */
-
-void daemonize(const char *name, ...)
-{
-       va_list args;
-       sigset_t blocked;
-
-       va_start(args, name);
-       vsnprintf(current->comm, sizeof(current->comm), name, args);
-       va_end(args);
-
-       /*
-        * If we were started as result of loading a module, close all of the
-        * user space pages.  We don't need them, and if we didn't close them
-        * they would be locked into memory.
-        */
-       exit_mm(current);
-       /*
-        * We don't want to get frozen, in case system-wide hibernation
-        * or suspend transition begins right now.
-        */
-       current->flags |= (PF_NOFREEZE | PF_KTHREAD);
-
-       if (current->nsproxy != &init_nsproxy) {
-               get_nsproxy(&init_nsproxy);
-               switch_task_namespaces(current, &init_nsproxy);
-       }
-       set_special_pids(&init_struct_pid);
-       proc_clear_tty(current);
-
-       /* Block and flush all signals */
-       sigfillset(&blocked);
-       sigprocmask(SIG_BLOCK, &blocked, NULL);
-       flush_signals(current);
-
-       /* Become as one with the init task */
-
-       daemonize_fs_struct();
-       daemonize_descriptors();
-
-       reparent_to_kthreadd();
-}
-
-EXPORT_SYMBOL(daemonize);
-
 #ifdef CONFIG_MM_OWNER
 /*
  * A task is exiting.   If it owned this mm, find a new owner for the mm.