From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 10 Dec 2014 23:54:45 +0000 (-0800)
Subject: exit: wait: cleanup the ptrace_reparented() checks
X-Git-Tag: omap-for-v3.19/fixes-rc1~142^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6507f83bccd4a5f7dc7091079bf58128dc56d66;p=pandora-kernel.git

exit: wait: cleanup the ptrace_reparented() checks

Now that EXIT_DEAD is the terminal state we can kill "int traced"
variable and check "state == EXIT_DEAD" instead to cleanup the code.  In
particular, this way it is clear that the check obviously doesn't need
tasklist_lock.

Also fix the type of "unsigned long state", "long" was always wrong
although this doesn't matter because cmpxchg/xchg uses typeof(*ptr).

[akpm@linux-foundation.org: don't make me google the C Operator Precedence table]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Sterling Alexander <stalexan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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