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From: ebiederm@xmission.com (Eric W. Biederman)
To: Joe Perches <joe@perches.com>
Cc: Nikolay Borisov <nborisov@suse.com>,
	Christian Brauner <christian.brauner@ubuntu.com>,
	Linux Containers <containers@lists.linux-foundation.org>,
	tycho@tycho.ws, linux-kernel@vger.kernel.org,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 3/5] userns: Don't read extents twice in m_start
Date: Wed, 01 Nov 2017 12:20:52 -0500	[thread overview]
Message-ID: <87h8udj4p7.fsf@xmission.com> (raw)
In-Reply-To: <1509555601.31043.44.camel@perches.com> (Joe Perches's message of "Wed, 01 Nov 2017 10:00:01 -0700")

Joe Perches <joe@perches.com> writes:

> On Wed, 2017-11-01 at 06:08 -0500, Eric W. Biederman wrote:
>> I won't listen to checkpatch when it is wrong.
>
> Always a good idea.
>
> btw: what is checkpatch wrong about this time?

Well the way I was hearing the conversation was that there was a patch
that fixed a real bug, but it was wrong because checkpatch complained
about it.

So I don't even know if the warning is a problem.  But blocking bug
fixes because there is a warning certainly is.

If someone wants to change coding style in practice so that every
smp_rmb and every smp_wmb has detailed comments that everyone must
include they need to follow the usual rule and update the entire kernel
when making an interface change.  As that did not happen I don't see
any problems with incremental updates in the style the code is already
in.

Not that I will mind a patch that updates the code, but I am not going
to hold up a perfectly good bug fix waiting for one either.

Eric

  reply	other threads:[~2017-11-01 17:21 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-24 22:04 [PATCH 1/2 v6] user namespace: use union in {g,u}idmap struct Christian Brauner
2017-10-24 22:04 ` [PATCH 2/2 v6] user namespaces: bump idmap limits to 340 Christian Brauner
2017-10-31 23:46   ` [PATCH 0/5] userns: bump idmap limits, fixes & tweaks Eric W. Biederman
2017-10-31 23:47     ` [PATCH 1/5] userns: Don't special case a count of 0 Eric W. Biederman
2017-10-31 23:47     ` [PATCH 2/5] userns: Simplify the user and group mapping functions Eric W. Biederman
2017-10-31 23:48     ` [PATCH 3/5] userns: Don't read extents twice in m_start Eric W. Biederman
2017-11-01  8:31       ` Nikolay Borisov
2017-11-01 11:08         ` Eric W. Biederman
2017-11-01 13:05           ` Nikolay Borisov
2017-11-01 13:05           ` Peter Zijlstra
2017-11-01 14:01             ` Christian Brauner
2017-11-01 14:16               ` Peter Zijlstra
2017-11-01 16:29                 ` Christian Brauner
2017-11-01 16:31             ` Christian Brauner
2017-11-01 17:00           ` Joe Perches
2017-11-01 17:20             ` Eric W. Biederman [this message]
2017-11-01 18:15               ` Peter Zijlstra
2017-10-31 23:48     ` [PATCH 4/5] userns: Make map_id_down a wrapper for map_id_range_down Eric W. Biederman
2017-10-31 23:49     ` [PATCH 5/5] userns: Simplify insert_extent Eric W. Biederman
2017-11-01 10:51     ` [PATCH 0/5] userns: bump idmap limits, fixes & tweaks Christian Brauner
2017-11-01 11:15       ` Eric W. Biederman
2017-11-01 13:31         ` Christian Brauner

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