tree 4cfd5edd17fcf1fe5e4372611c561928a99107d0
parent 2b201a9eddf509e8e935b45e573648e36f4b623f
author Oleg Nesterov <oleg@tv-sign.ru> 1216975651 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1217008418 -0700

coredump: zap_threads: comments && use while_each_thread()

No changes in fs/exec.o

The for_each_process() loop in zap_threads() is very subtle, it is not
clear why we don't race with fork/exit/exec.  Add the fat comment.

Also, change the code to use while_each_thread().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
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>