From: Peter Zijlstra <peterz@infradead.org>
To: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Gilad Ben Yossef <giladb@ezchip.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>, Tejun Heo <tj@kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Christoph Lameter <cl@linux.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Andy Lutomirski <luto@amacapital.net>,
Michal Hocko <mhocko@suse.com>,
linux-mm@kvack.org, linux-doc@vger.kernel.org,
linux-api@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v12 04/13] task_isolation: add initial support
Date: Wed, 18 May 2016 15:34:20 +0200 [thread overview]
Message-ID: <20160518133420.GG3193@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1459877922-15512-5-git-send-email-cmetcalf@mellanox.com>
On Tue, Apr 05, 2016 at 01:38:33PM -0400, Chris Metcalf wrote:
> diff --git a/kernel/signal.c b/kernel/signal.c
> index aa9bf00749c1..53e4e62f2778 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -34,6 +34,7 @@
> #include <linux/compat.h>
> #include <linux/cn_proc.h>
> #include <linux/compiler.h>
> +#include <linux/isolation.h>
>
> #define CREATE_TRACE_POINTS
> #include <trace/events/signal.h>
> @@ -2213,6 +2214,9 @@ relock:
> /* Trace actually delivered signals. */
> trace_signal_deliver(signr, &ksig->info, ka);
>
> + /* Disable task isolation when delivering a signal. */
Why !? Changelog is quiet on this.
> + task_isolation_set_flags(current, 0);
> +
> if (ka->sa.sa_handler == SIG_IGN) /* Do nothing. */
> continue;
> if (ka->sa.sa_handler != SIG_DFL) {
--
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next prev parent reply other threads:[~2016-05-18 13:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1459877922-15512-1-git-send-email-cmetcalf@mellanox.com>
2016-04-05 17:38 ` [PATCH v12 02/13] vmstat: add vmstat_idle function Chris Metcalf
2016-04-05 17:38 ` [PATCH v12 03/13] lru_add_drain_all: factor out lru_add_drain_needed Chris Metcalf
2016-04-05 17:38 ` [PATCH v12 04/13] task_isolation: add initial support Chris Metcalf
2016-05-18 13:34 ` Peter Zijlstra [this message]
2016-05-18 16:34 ` Chris Metcalf
2016-05-18 17:09 ` Peter Zijlstra
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