do_task_stat() has the same problem as getrusage() had before
getrusage-use-sig-stats_lock-rather-than-lock_task_sighand.patch

3/3 depends on the patch above.

Oleg.

 fs/proc/array.c | 66 ++++++++++++++++++++++++++++++++-------------------------
 kernel/exit.c   | 10 +++------
 2 files changed, 40 insertions(+), 36 deletions(-)