From: Zhao Jin <cronozhj@gmail.com>
To: Christoph Lameter <cl@linux.com>
Cc: penberg@kernel.org, mpm@selenic.com, trivial@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] slab: avoid unnecessary touching of a partial slab
Date: Fri, 26 Aug 2011 23:09:34 +0800 [thread overview]
Message-ID: <1314371374.8991.49.camel@vm> (raw)
In-Reply-To: <alpine.DEB.2.00.1108261004430.5818@router.home>
On Fri, 2011-08-26 at 10:05 -0500, Christoph Lameter wrote:
> On Fri, 26 Aug 2011, Zhao Jin wrote:
>
> > > Correct but still tthe del/add is a list_move operation. Convert that the
> > > other case as well?
> > >
> > Yes. The patch avoids list_del/list_add only if it is the case that a
> > partial slab was used for refilling and remains partial (that is:
> > partial => partial). If it is not the case( so it must be either partial
> > => full, free => full or free => partial) the patched code behaves the
> > same as current (list_del/list_add).
>
> The second case is what I want you to change to list_move.
>
>
Oops. I misunderstood your reply... I shall do it. Thanks a lot for
pointing it out.
Regards,
zhj
prev parent reply other threads:[~2011-08-26 15:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-26 5:13 [PATCH] slab: avoid unnecessary touching of a partial slab Zhao Jin
2011-08-26 5:58 ` Zhao Jin
2011-08-26 14:08 ` Christoph Lameter
2011-08-26 14:46 ` Zhao Jin
2011-08-26 14:50 ` Christoph Lameter
2011-08-26 15:02 ` Zhao Jin
2011-08-26 15:05 ` Christoph Lameter
2011-08-26 15:09 ` Zhao Jin [this message]
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