tree 7fe576d195533fb671c7a610cc35e9608e48c87e
parent d92656633b8352c6d4b14afcb7beb154d76e7aa6
author Oleg Nesterov <oleg@redhat.com> 1245281256 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1245355432 -0700

ptrace: don't take tasklist to get/set ->last_siginfo

Change ptrace_getsiginfo/ptrace_setsiginfo to use lock_task_sighand()
without tasklist_lock.  Perhaps it makes sense to make a single helper
with "bool rw" argument.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>