From: William Lee Irwin III <wli@holomorphy.com>
To: Kanoj Sarcar <kanojsarcar@yahoo.com>
Cc: colpatch@us.ibm.com, Andrew Morton <akpm@zip.com.au>,
Martin Bligh <mjbligh@us.ibm.com>,
linux-mm@kvack.org, Michael Hohnbaum <hohnbaum@us.ibm.com>
Subject: Re: [patch] Useless locking in mm/numa.c
Date: Fri, 19 Jul 2002 11:38:44 -0700 [thread overview]
Message-ID: <20020719183844.GJ1022@holomorphy.com> (raw)
In-Reply-To: <20020719183646.32486.qmail@web14310.mail.yahoo.com>
On Fri, Jul 19, 2002 at 11:36:46AM -0700, Kanoj Sarcar wrote:
> I think I put in the locks in the initial version of
> the file becase the idea was that
> show_free_areas_node() could be invoked from any cpu
> in a multinode system (via the sysrq keys or other
> intr sources), and the spin lock would provide
> sanity in the print out.
> For nonnuma discontig machines, isn't the spin lock
> providing protection in the pgdat list chain walking
> in _alloc_pages()?
> Kanoj
Since I just posted a patch removing the entire function, exactly
where is this called from? A grep of current 2.5 shows that it's
never called from anywhere.
Cheers,
Bill
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next prev parent reply other threads:[~2002-07-19 18:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-19 1:03 [patch] Useless locking in mm/numa.c Matthew Dobson
2002-07-19 18:36 ` Kanoj Sarcar
2002-07-19 18:38 ` William Lee Irwin III [this message]
2002-07-19 18:40 ` Kanoj Sarcar
2002-07-19 20:30 ` Matthew Dobson
2002-07-19 21:45 ` Matthew Dobson
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