From: Lai Jiangshan <laijs@cn.fujitsu.com>
To: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>, Ingo Molnar <mingo@elte.hu>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Eric Dumazet <eric.dumazet@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Matt Mackall <mpm@selenic.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH 2/4] slub,rcu: don't assume the size of struct rcu_head
Date: Wed, 02 Mar 2011 10:55:57 +0800 [thread overview]
Message-ID: <4D6DB1BD.60003@cn.fujitsu.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1103010909320.6253@router.home>
On 03/01/2011 11:11 PM, Christoph Lameter wrote:
> On Tue, 1 Mar 2011, Pekka Enberg wrote:
>
>> The SLAB and SLUB patches are fine by me if there are going to be real
>> users for this. Christoph, Paul?
>
> The solution is a bit overkill. It would be much simpler to add a union to
> struct page that has lru and the rcu in there similar things can be done
> for SLAB and the network layer. A similar issue already exists for the
> spinlock in struct page. Lets follow the existing way of handling this.
I don't want to impact the whole system too much to
touch struct page. The solution changes existed things little,
and the reversed data may just make use of the pad data.
>
> Struct page may be larger for debugging purposes already because of the
> need for extended spinlock data.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
WARNING: multiple messages have this Message-ID (diff)
From: Lai Jiangshan <laijs@cn.fujitsu.com>
To: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>, Ingo Molnar <mingo@elte.hu>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Eric Dumazet <eric.dumazet@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Matt Mackall <mpm@selenic.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH 2/4] slub,rcu: don't assume the size of struct rcu_head
Date: Wed, 02 Mar 2011 10:55:57 +0800 [thread overview]
Message-ID: <4D6DB1BD.60003@cn.fujitsu.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1103010909320.6253@router.home>
On 03/01/2011 11:11 PM, Christoph Lameter wrote:
> On Tue, 1 Mar 2011, Pekka Enberg wrote:
>
>> The SLAB and SLUB patches are fine by me if there are going to be real
>> users for this. Christoph, Paul?
>
> The solution is a bit overkill. It would be much simpler to add a union to
> struct page that has lru and the rcu in there similar things can be done
> for SLAB and the network layer. A similar issue already exists for the
> spinlock in struct page. Lets follow the existing way of handling this.
I don't want to impact the whole system too much to
touch struct page. The solution changes existed things little,
and the reversed data may just make use of the pad data.
>
> Struct page may be larger for debugging purposes already because of the
> need for extended spinlock data.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2011-03-02 2:54 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-01 8:03 [PATCH 2/4] slub,rcu: don't assume the size of struct rcu_head Lai Jiangshan
2011-03-01 8:03 ` Lai Jiangshan
2011-03-01 13:00 ` Pekka Enberg
2011-03-01 13:00 ` Pekka Enberg
2011-03-01 15:11 ` Christoph Lameter
2011-03-01 15:11 ` Christoph Lameter
2011-03-02 2:55 ` Lai Jiangshan [this message]
2011-03-02 2:55 ` Lai Jiangshan
2011-03-02 4:31 ` Hugh Dickins
2011-03-02 4:31 ` Hugh Dickins
2011-03-02 12:32 ` Christoph Lameter
2011-03-02 12:32 ` Christoph Lameter
2011-03-06 19:39 ` Hugh Dickins
2011-03-06 19:39 ` Hugh Dickins
2011-03-08 2:17 ` Lai Jiangshan
2011-03-08 2:17 ` Lai Jiangshan
2011-03-17 15:16 ` Christoph Lameter
2011-03-17 15:16 ` Christoph Lameter
2011-03-19 3:58 ` Hugh Dickins
2011-03-19 3:58 ` Hugh Dickins
2011-03-08 18:25 ` Christoph Lameter
2011-03-08 18:25 ` Christoph Lameter
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=4D6DB1BD.60003@cn.fujitsu.com \
--to=laijs@cn.fujitsu.com \
--cc=cl@linux.com \
--cc=davem@davemloft.net \
--cc=eric.dumazet@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mingo@elte.hu \
--cc=mpm@selenic.com \
--cc=netdev@vger.kernel.org \
--cc=paulmck@linux.vnet.ibm.com \
--cc=penberg@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.