From: Thomas Gleixner <tglx@linutronix.de>
To: Jens Axboe <axboe@kernel.dk>, Miroslav Benes <mbenes@suse.cz>
Cc: Oleg Nesterov <oleg@redhat.com>,
linux-kernel@vger.kernel.org, io-uring@vger.kernel.org,
peterz@infradead.org, live-patching@vger.kernel.org
Subject: Re: [PATCHSET RFC v3 0/6] Add support for TIF_NOTIFY_SIGNAL
Date: Wed, 14 Oct 2020 01:34:32 +0200 [thread overview]
Message-ID: <87lfg9og3b.fsf@nanos.tec.linutronix.de> (raw)
In-Reply-To: <3c3616f2-8801-1d42-6d7d-3dfbf977edb2@kernel.dk>
Jens,
On Tue, Oct 13 2020 at 13:39, Jens Axboe wrote:
> On 10/12/20 11:27 AM, Miroslav Benes wrote:
> I'm continuing to hone the series, what's really missing so far is arch
> review. Most conversions are straight forward, some I need folks to
> definitely take a look at (arm, s390). powerpc is also a bit hair right
> now, but I'm told that 5.10 will kill a TIF flag there, so that'll make
> it trivial once I rebase on that.
can you pretty please not add that to anything which is not going
through kernel/entry/ ?
The amount of duplicated and differently buggy, inconsistent and
incomplete code in syscall and exception handling is just annoying.
It's perfectly fine if we keep that #ifdeffery around for a while and
encourage arch folks to move over to the generic infrastructure instead
of proliferating the status quo by adding this to their existing pile.
The #ifdef guarding this in set_notify_signal() and other core code
places wants to be:
#if defined(CONFIG_GENERIC_ENTRY) && defined(TIF_NOTIFY_SIGNAL)
Thanks,
tglx
next prev parent reply other threads:[~2020-10-13 23:34 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 15:04 [PATCHSET RFC v3 0/6] Add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-05 15:04 ` [PATCH 1/6] tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume() Jens Axboe
2020-10-08 12:37 ` Oleg Nesterov
2020-10-08 13:36 ` Jens Axboe
2020-10-05 15:04 ` [PATCH 2/6] kernel: add task_sigpending() helper Jens Axboe
2020-10-08 12:58 ` Oleg Nesterov
2020-10-08 13:36 ` Jens Axboe
2020-10-08 13:24 ` Oleg Nesterov
2020-10-08 13:38 ` Jens Axboe
2020-10-05 15:04 ` [PATCH 3/6] kernel: split syscall restart from signal handling Jens Axboe
2020-10-08 14:21 ` Oleg Nesterov
2020-10-08 14:31 ` Jens Axboe
2020-10-08 14:41 ` Jens Axboe
2020-10-08 14:45 ` Oleg Nesterov
2020-10-08 14:47 ` Jens Axboe
2020-10-05 15:04 ` [PATCH 4/6] kernel: add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-08 13:53 ` Oleg Nesterov
2020-10-08 14:07 ` Jens Axboe
2020-10-08 14:27 ` Oleg Nesterov
2020-10-05 15:04 ` [PATCH 5/6] x86: define _TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-05 15:04 ` [PATCH 6/6] task_work: use TIF_NOTIFY_SIGNAL if available Jens Axboe
2020-10-08 14:56 ` [PATCHSET RFC v3 0/6] Add support for TIF_NOTIFY_SIGNAL Oleg Nesterov
2020-10-08 15:00 ` Jens Axboe
2020-10-09 8:01 ` Miroslav Benes
2020-10-09 15:21 ` Jens Axboe
2020-10-10 16:53 ` Jens Axboe
2020-10-12 17:27 ` Miroslav Benes
2020-10-13 19:39 ` Jens Axboe
2020-10-13 23:34 ` Thomas Gleixner [this message]
2020-10-13 23:37 ` Jens Axboe
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