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From: Linus Torvalds <torvalds@linuxfoundation.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: linux-arch <linux-arch@vger.kernel.org>,
	Tejun Heo <tj@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Al Viro <viro@zeniv.linux.org.uk>, Jens Axboe <axboe@kernel.dk>,
	Thomas Gleixner <tglx@linutronix.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 8/7] sched: Update task_tick_numa to ignore tasks without an mm
Date: Wed, 11 May 2022 10:42:21 -0700	[thread overview]
Message-ID: <CAHk-=whUy_cuJsVeob4zDnK5sWpE3U2EjVbnR2xobqgx7DOp4g@mail.gmail.com> (raw)
In-Reply-To: <87r150ug1l.fsf_-_@email.froward.int.ebiederm.org>

On Wed, May 11, 2022 at 10:37 AM Eric W. Biederman
<ebiederm@xmission.com> wrote:
>
> With the change to init and the user mode helper processes to not have
> PF_KTHREAD set before they call kernel_execve the PF_KTHREAD test in
> task_tick_numa became insufficient to detect all tasks that have
> "->mm == NULL".  Correct that by testing for "->mm == NULL" directly.

If you end up rebasing at any time for other reasons (I didn't even
check if you keep this series in a public git branch), please just
fold this fix into the original commit, so that we don't have
unnecessary bisection issues.

               Linus

  reply	other threads:[~2022-05-11 17:42 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CANpfEhOnNZa5d_G3e0dzzbbEtSuqxWY-fUCqzSiFpiQ2k0hJyw@mail.gmail.com>
     [not found] ` <CAHk-=wjfecvcUk2vNQM1GiUz_G=WQEJ8i8JS7yjnxjq_f-OgKw@mail.gmail.com>
     [not found]   ` <87a6czifo7.fsf@email.froward.int.ebiederm.org>
     [not found]     ` <CAHk-=wj=EHvH-DEUHbkoB3vDZJ1xRzrk44JibtNOepNkachxPw@mail.gmail.com>
     [not found]       ` <87ilrn1drx.ffs@tglx>
     [not found]         ` <877d7zk1cf.ffs@tglx>
     [not found]           ` <CAHk-=wiJPeANKYU4imYaeEuV6sNP+EDR=rWURSKv=y4Mhcn1hA@mail.gmail.com>
     [not found]             ` <87y20fid4d.ffs@tglx>
     [not found]               ` <87bkx5q3pk.fsf_-_@email.froward.int.ebiederm.org>
2022-05-06 14:11                 ` [PATCH 0/7] fork: Make init and umh ordinary tasks Eric W. Biederman
2022-05-06 14:15                   ` [PATCH 1/7] kthread: Don't allocate kthread_struct for init and umh Eric W. Biederman
     [not found]                     ` <CANpfEhNAQvazzCSN-dVgYmwNSRjqOrqZF0_j7GPLbCdEkogzSg@mail.gmail.com>
2022-05-06 20:53                       ` Eric W. Biederman
2022-05-10 14:38                     ` Thomas Gleixner
2022-05-10 15:14                       ` Eric W. Biederman
2022-05-11 17:41                         ` Eric W. Biederman
2022-05-06 14:15                   ` [PATCH 2/7] fork: Pass struct kernel_clone_args into copy_thread Eric W. Biederman
2022-05-06 20:38                     ` kernel test robot
2022-05-06 21:52                       ` Eric W. Biederman
2022-05-06 21:52                         ` Eric W. Biederman
2022-05-06 14:15                   ` [PATCH 3/7] fork: Explicity test for idle tasks in copy_thread Eric W. Biederman
2022-05-06 14:15                   ` [PATCH 4/7] fork: Generalize PF_IO_WORKER handling Eric W. Biederman
2022-05-06 14:15                   ` [PATCH 5/7] init: Deal with the init process being a user mode process Eric W. Biederman
2022-05-06 14:15                   ` [PATCH 6/7] fork: Explicitly set PF_KTHREAD Eric W. Biederman
2022-05-06 14:15                   ` [PATCH 7/7] fork: Stop allowing kthreads to call execve Eric W. Biederman
2022-05-09 20:46                   ` [PATCH 0/7] fork: Make init and umh ordinary tasks Qian Cai
2022-05-09 21:52                     ` Eric W. Biederman
2022-05-10 15:36                       ` Qian Cai
2022-05-11 17:37                   ` [PATCH 8/7] sched: Update task_tick_numa to ignore tasks without an mm Eric W. Biederman
2022-05-11 17:42                     ` Linus Torvalds [this message]
2022-05-11 17:53                       ` Eric W. Biederman
2022-05-11 17:59                         ` Linus Torvalds

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