linux-kernel - [PATCH 0/3] introduce for_each_process_thread

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Message-ID: <20160725162332.GA23935@redhat.com>
Date:	Mon, 25 Jul 2016 18:23:32 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Dave Anderson <anderson@...hat.com>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Wang Shu <shuwang@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] introduce for_each_process_thread_{break,continue}()
 helpers

Hello,

IMHO this makes sense in any case, but mostly this is preparation for
another change: show_state_filter() should be preemptible. But this needs
more discussion, I'll write another email/patch when I fully understand
the hard-lockup caused by sysrq-t.

Oleg.

 include/linux/sched.h | 10 ++++++++++
 kernel/exit.c         | 42 ++++++++++++++++++++++++++++++++++++++++++
 kernel/hung_task.c    | 41 ++++++++++++++++++++++++-----------------
 3 files changed, 76 insertions(+), 17 deletions(-)