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From: Luis Chamberlain <mcgrof@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: Xiaoming Ni <nixiaoming@huawei.com>,
yzaikin@google.com, adobriyan@gmail.com, mingo@kernel.org,
peterz@infradead.org, akpm@linux-foundation.org,
yamada.masahiro@socionext.com, bauerman@linux.ibm.com,
gregkh@linuxfoundation.org, skhan@linuxfoundation.org,
dvyukov@google.com, svens@stackframe.org, joel@joelfernandes.org,
tglx@linutronix.de, Jisheng.Zhang@synaptics.com,
pmladek@suse.com, bigeasy@linutronix.de,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
wangle6@huawei.com
Subject: Re: [PATCH 1/4] hung_task: Move hung_task sysctl interface to hung_task_sysctl.c
Date: Fri, 15 May 2020 20:21:26 +0000 [thread overview]
Message-ID: <20200515202126.GY11244@42.do-not-panic.com> (raw)
In-Reply-To: <202005150902.9293E99B8@keescook>
On Fri, May 15, 2020 at 09:03:54AM -0700, Kees Cook wrote:
> On Fri, May 15, 2020 at 04:56:34PM +0800, Xiaoming Ni wrote:
> > On 2020/5/15 16:04, Kees Cook wrote:
> > > On Fri, May 15, 2020 at 12:33:41PM +0800, Xiaoming Ni wrote:
> > > > Move hung_task sysctl interface to hung_task_sysctl.c.
> > > > Use register_sysctl() to register the sysctl interface to avoid
> > > > merge conflicts when different features modify sysctl.c at the same time.
> > > >
> > > > Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
> > > > ---
> > > > include/linux/sched/sysctl.h | 8 +----
> > > > kernel/Makefile | 4 ++-
> > > > kernel/hung_task.c | 6 ++--
> > > > kernel/hung_task.h | 21 ++++++++++++
> > > > kernel/hung_task_sysctl.c | 80 ++++++++++++++++++++++++++++++++++++++++++++
> > >
> > > Why a separate file? That ends up needing changes to Makefile, the
> > > creation of a new header file, etc. Why not just put it all into
> > > hung_task.c directly?
> > >
> > > -Kees
> > >
> > But Luis Chamberlain's suggestion is to put the hung_task sysctl code in a
> > separate file. Details are in https://lkml.org/lkml/2020/5/13/762.
> > I am a little confused, not sure which way is better.
>
> Ah, yes, I see now. Luis, I disagree with your recommendation here -- I
> think complicating the Makefile is much less intuitive than just
> wrapping this code in an #ifdef block in the existing .c file.
That's fine, sorry for the trouble Xiaoming.
Luis
next prev parent reply other threads:[~2020-05-15 20:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-15 4:33 [PATCH 0/4] Move the sysctl interface to the corresponding feature code file Xiaoming Ni
2020-05-15 4:33 ` [PATCH 1/4] hung_task: Move hung_task sysctl interface to hung_task_sysctl.c Xiaoming Ni
2020-05-15 8:04 ` Kees Cook
2020-05-15 8:56 ` Xiaoming Ni
2020-05-15 16:03 ` Kees Cook
2020-05-15 20:21 ` Luis Chamberlain [this message]
2020-05-15 4:33 ` [PATCH 2/4] proc/sysctl: add shared variables -1 Xiaoming Ni
2020-05-15 8:06 ` Kees Cook
2020-05-15 9:06 ` Xiaoming Ni
2020-05-15 16:05 ` Kees Cook
2020-05-16 2:32 ` Xiaoming Ni
2020-05-16 2:47 ` Kees Cook
2020-05-16 3:05 ` Xiaoming Ni
2020-05-17 2:38 ` Kees Cook
2020-05-15 4:33 ` [PATCH 3/4] watchdog: move watchdog sysctl to watchdog.c Xiaoming Ni
2020-05-15 8:09 ` Kees Cook
2020-05-15 9:17 ` Xiaoming Ni
2020-05-15 4:33 ` [PATCH 4/4] sysctl: Add register_sysctl_init() interface Xiaoming Ni
2020-05-15 8:10 ` Kees Cook
2020-05-15 9:39 ` Xiaoming Ni
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