Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Thu, 19 Mar 2020 02:21:07 -0700
From:   Davidlohr Bueso <dave@stgolabs.net>
To:     Thomas Gleixner <tglx@linutronix.de>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Ingo Molnar <mingo@kernel.org>, Will Deacon <will@kernel.org>,
        "Paul E . McKenney" <paulmck@kernel.org>,
        Joel Fernandes <joel@joelfernandes.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Randy Dunlap <rdunlap@infradead.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Arnd Bergmann <arnd@arndb.de>, linuxppc-dev@lists.ozlabs.org,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        Logan Gunthorpe <logang@deltatee.com>,
        Kurt Schwemmer <kurt.schwemmer@microsemi.com>,
        Bjorn Helgaas <bhelgaas@google.com>, linux-pci@vger.kernel.org,
        Felipe Balbi <balbi@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-usb@vger.kernel.org, Kalle Valo <kvalo@codeaurora.org>,
        "David S. Miller" <davem@davemloft.net>,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        Oleg Nesterov <oleg@redhat.com>
Subject: Re: [patch V2 07/15] powerpc/ps3: Convert half completion to rcuwait
Message-ID: <20200319092107.6brm26peh3h2n4sk@linux-p48b>
References: <20200318204302.693307984@linutronix.de>
 <20200318204408.102694393@linutronix.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Disposition: inline
In-Reply-To: <20200318204408.102694393@linutronix.de>
User-Agent: NeoMutt/20180716
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Wed, 18 Mar 2020, Thomas Gleixner wrote:
>AFAICT the kthread uses TASK_INTERRUPTIBLE to not increase loadavg, kthreads
>cannot receive signals by default and this one doesn't look different. Use
>TASK_IDLE instead.

Hmm it seems in general this needs to be done kernel-wide. This kthread abuse of
TASK_INTERRUPTIBLE seems to be a common thing. There's also the users doing
schedule_timeout_interruptible()...

Thanks,
Davidlohr