Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

Pull third pile of kernel_execve() patches from Al Viro:
 "The last bits of infrastructure for kernel_thread() et.al., with
  alpha/arm/x86 use of those.  Plus sanitizing the asm glue and
  do_notify_resume() on alpha, fixing the "disabled irq while running
  task_work stuff" breakage there.

  At that point the rest of kernel_thread/kernel_execve/sys_execve work
  can be done independently for different architectures.  The only
  pending bits that do depend on having all architectures converted are
  restrictred to fs/* and kernel/* - that'll obviously have to wait for
  the next cycle.

  I thought we'd have to wait for all of them done before we start
  eliminating the longjump-style insanity in kernel_execve(), but it
  turned out there's a very simple way to do that without flagday-style
  changes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  alpha: switch to saner kernel_execve() semantics
  arm: switch to saner kernel_execve() semantics
  x86, um: convert to saner kernel_execve() semantics
  infrastructure for saner ret_from_kernel_thread semantics
  make sure that kernel_thread() callbacks call do_exit() themselves
  make sure that we always have a return path from kernel_execve()
  ppc: eeh_event should just use kthread_run()
  don't bother with kernel_thread/kernel_execve for launching linuxrc
  alpha: get rid of switch_stack argument of do_work_pending()
  alpha: don't bother passing switch_stack separately from regs
  alpha: take SIGPENDING/NOTIFY_RESUME loop into signal.c
  alpha: simplify TIF_NEED_RESCHED handling

diff --cc arch/Kconfig
Simple merge

diff --cc arch/arm/Kconfig
Simple merge

diff --cc arch/arm/include/asm/unistd.h
Simple merge

diff --cc arch/arm/kernel/entry-common.S
Simple merge

diff --cc arch/arm/kernel/process.c
Simple merge

diff --cc arch/powerpc/platforms/pseries/eeh_event.c
index 51faaac8abe6c401636326deebd59f4d12457b28,75e2eccefca205ac706fea42870eadd876040a7e..185bedd926df7258bef7070d97c68f577bf91298
--- 1/arch/powerpc/platforms/pseries/eeh_event.c
--- 2/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@@ -57,10 -58,8 +58,8 @@@ static int eeh_event_handler(void * dum
  {
        unsigned long flags;
        struct eeh_event *event;
 -      struct eeh_dev *edev;
 +      struct eeh_pe *pe;
  
-       set_task_comm(current, "eehd");
- 
        spin_lock_irqsave(&eeh_eventlist_lock, flags);
        event = NULL;
  

diff --cc arch/um/include/asm/processor-generic.h
Simple merge

diff --cc arch/um/include/shared/os.h
Simple merge

diff --cc arch/um/kernel/exec.c
Simple merge

diff --cc arch/um/kernel/process.c
Simple merge

diff --cc arch/um/os-Linux/process.c
Simple merge

diff --cc arch/x86/Kconfig
index 42d2c35a5bbdd61b594ee5e2b9431532ad02a59f,45edcba41e39fea6d5a8fcb5853ceb43e130f2e3..70071b19eb989b7926ac0f08c8f6d2431356c919
--- 1/arch/x86/Kconfig
--- 2/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@@ -106,13 -97,11 +106,14 @@@ config X8
        select KTIME_SCALAR if X86_32
        select GENERIC_STRNCPY_FROM_USER
        select GENERIC_STRNLEN_USER
 +      select HAVE_RCU_USER_QS if X86_64
 +      select HAVE_IRQ_TIME_ACCOUNTING
        select GENERIC_KERNEL_THREAD
+       select GENERIC_KERNEL_EXECVE
  
  config INSTRUCTION_DECODER
 -      def_bool (KPROBES || PERF_EVENTS || UPROBES)
 +      def_bool y
 +      depends on KPROBES || PERF_EVENTS || UPROBES
  
  config OUTPUT_FORMAT
        string

diff --cc arch/x86/kernel/entry_32.S
Simple merge

diff --cc arch/x86/kernel/entry_64.S
Simple merge

diff --cc arch/x86/um/Kconfig
Simple merge

diff --cc init/main.c
Simple merge

diff --cc kernel/kthread.c
Simple merge