From: "H. Peter Anvin" <hpa@zytor.com>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Yinghai Lu <yinghai@kernel.org>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH -v3] x86: do not free zero sized per cpu areas
Date: Fri, 19 Mar 2010 16:43:29 -0700 [thread overview]
Message-ID: <4BA40C21.3090804@zytor.com> (raw)
In-Reply-To: <1269041758.28761.33.camel@localhost.localdomain>
On 03/19/2010 04:35 PM, Ian Campbell wrote:
>
> I think Peter means:
>
> if (start == end)
> return;
>
> if (WARN_ONCE(start < end, "blah"))
> return;
start > end!
> i.e. silently ignore a zero sized region and verbosely ignore a
> negatively sized one.
Correct.
-hpa
next prev parent reply other threads:[~2010-03-19 23:50 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-05 15:03 Infinite loop on boot in free_early_partial due to start==end on tip/master Ian Campbell
2010-03-05 18:16 ` Yinghai Lu
2010-03-05 19:45 ` Ian Campbell
2010-03-05 19:49 ` [PATCH] x86: do not free zero sized per cpu areas Ian Campbell
2010-03-05 19:51 ` Yinghai Lu
2010-03-19 19:24 ` Yinghai Lu
2010-03-19 21:42 ` H. Peter Anvin
2010-03-19 22:18 ` [PATCH -v3] " Yinghai Lu
2010-03-19 22:21 ` H. Peter Anvin
2010-03-19 23:24 ` Yinghai Lu
2010-03-19 23:29 ` H. Peter Anvin
2010-03-19 23:45 ` [PATCH -v4] " Yinghai Lu
2010-03-20 1:00 ` Linus Torvalds
2010-03-20 1:59 ` [PATCH -v5] " Yinghai Lu
2010-03-20 2:41 ` Linus Torvalds
2010-03-20 6:38 ` [PATCH -v6] " Yinghai Lu
2010-03-20 7:12 ` Ian Campbell
2010-03-22 17:30 ` [LKML] " Konrad Rzeszutek Wilk
2010-03-19 23:35 ` [PATCH -v3] " Ian Campbell
2010-03-19 23:43 ` Ian Campbell
2010-03-19 23:43 ` H. Peter Anvin [this message]
2010-03-19 18:28 ` Infinite loop on boot in free_early_partial due to start==end on tip/master Konrad Rzeszutek Wilk
2010-03-19 19:04 ` Yinghai Lu
2010-03-19 19:34 ` Ian Campbell
2010-03-19 20:04 ` [LKML] " Konrad Rzeszutek Wilk
2010-03-19 21:17 ` Yinghai Lu
2010-03-19 21:37 ` Ian Campbell
2010-03-20 3:37 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4BA40C21.3090804@zytor.com \
--to=hpa@zytor.com \
--cc=Ian.Campbell@citrix.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
--cc=yinghai@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.