From: Christoph Lameter <cl@linux.com>
To: "Alex,Shi" <alex.shi@intel.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"Chen, Tim C" <tim.c.chen@intel.com>,
"Huang, Ying" <ying.huang@intel.com>
Subject: Re: [PATCH 2/2] slub: reduce a variable in __slab_free()
Date: Mon, 12 Sep 2011 10:27:25 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1109121026080.15509@router.home> (raw)
In-Reply-To: <1315559521.31737.799.camel@debian>
On Fri, 9 Sep 2011, Alex,Shi wrote:
> After the compxchg, the new.inuse are fixed in __slab_free as a local
> variable, so we don't need a extra variable for it.
True but its an easier read otherwise and the contents are extracted from
the 16 bit value into a long which is easier to handle for the compiler
later. Check to see if there is a code difference due to this patch.
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prev parent reply other threads:[~2011-09-12 15:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-09 9:12 Alex,Shi
2011-09-12 15:27 ` Christoph Lameter [this message]
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