1. 10 Aug, 2009 1 commit
    • Oleg Nesterov's avatar
      mm_for_maps: simplify, use ptrace_may_access() · 13f0feaf
      Oleg Nesterov authored
      It would be nice to kill __ptrace_may_access(). It requires task_lock(),
      but this lock is only needed to read mm->flags in the middle.
      Convert mm_for_maps() to use ptrace_may_access(), this also simplifies
      the code a little bit.
      Also, we do not need to take ->mmap_sem in advance. In fact I think
      mm_for_maps() should not play with ->mmap_sem at all, the caller should
      take this lock.
      With or without this patch, without ->cred_guard_mutex held we can race
      with exec() and get the new ->mm but check old creds.
      Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
      Reviewed-by: default avatarSerge Hallyn <serue@us.ibm.com>
      Signed-off-by: default avatarJames Morris <jmorris@namei.org>
  2. 09 Aug, 2009 15 commits
  3. 08 Aug, 2009 10 commits
  4. 07 Aug, 2009 14 commits