[GIT PULL] uprobes: fix fork() with the pending ret-probe(s)

[Oleg Nesterov <oleg@redhat.com>]

Ingo, please pull from

  git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core

This fixes the serious bug, a forked process crashes if it returns
from the probed function called by its parent, this cc's stable.

Also the minor fix from Ralf.

Oleg Nesterov (6):
      uprobes: Change the callsite of uprobe_copy_process()
      uprobes: Introduce __create_xol_area()
      uprobes: Teach __create_xol_area() to accept the predefined vaddr
      uprobes: Change uprobe_copy_process() to dup return_instances
      uprobes: Change uprobe_copy_process() to dup xol_area
      uprobes: Teach uprobe_copy_process() to handle CLONE_VFORK

Ralf Baechle (1):
      uprobes: Remove the wrong __weak attribute

 include/linux/uprobes.h |    6 +-
 kernel/events/uprobes.c |  156 ++++++++++++++++++++++++++++++++++++-----------
 kernel/fork.c           |    2 +-
 3 files changed, 124 insertions(+), 40 deletions(-)