From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
Paul Mackerras <paulus@samba.org>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: PS3: Fix memory hotplug
Date: Wed, 14 May 2008 23:51:29 -0700 [thread overview]
Message-ID: <1210834289.8297.85.camel@pasglop> (raw)
In-Reply-To: <1210834125.8297.80.camel@pasglop>
> Paul, any thoughts here ? Should we add a lock ? That would mean being
> careful as the LMB stuff can be called very early, and spinlock wants
> things like PACA and possibly lockdep to be around..
Actually, we call early_init_devtree(), which populates the LMB, after
we initialize the PACA and lockdep, so it -should- be safe to add a
spinlock.
Dave ? Any objection to adding a spinlock to the LMB code ?
Cheers,
Ben.
next prev parent reply other threads:[~2008-05-15 6:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-13 16:23 PS3: Fix memory hotplug Geoff Levand
2008-05-15 6:48 ` Benjamin Herrenschmidt
2008-05-15 6:51 ` Benjamin Herrenschmidt [this message]
2008-05-15 7:02 ` David Miller
2008-05-20 0:40 ` [rfc] [patch] LMB: Add basic spin locking to lmb Geoff Levand
2008-05-20 0:40 ` Geoff Levand
2008-05-20 0:55 ` [patch v2] " Geoff Levand
2008-05-20 0:55 ` Geoff Levand
2008-05-20 2:22 ` David Miller
2008-05-20 2:22 ` David Miller
2008-05-20 2:32 ` Benjamin Herrenschmidt
2008-05-20 2:32 ` Benjamin Herrenschmidt
2008-05-20 2:34 ` David Miller
2008-05-20 2:34 ` David Miller
2008-05-15 9:38 ` PS3: Fix memory hotplug Paul Mackerras
2008-05-21 18:31 ` Geoff Levand
2008-05-15 20:09 ` [patch v2] " Geoff Levand
2008-05-21 16:41 ` Geoff Levand
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