linux-kernel - [BUGFIX] fix walk systm ram range for infiniband (Was Re: [BUGFIX][mmotm] fix walk system ram range patch (Was Re: mmotm on powerpc: walk_memory

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Date:	Wed, 16 Sep 2009 15:44:39 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ben Herrenschmidt <benh@...nel.crashing.org>,
	linux-kernel@...r.kernel.org
Subject: [BUGFIX] fix walk systm ram range for infiniband (Was Re:
 [BUGFIX][mmotm] fix walk system ram range patch (Was Re: mmotm on powerpc:
 walk_memory_resource?

On Tue, 15 Sep 2009 23:16:47 -0700 (PDT)
David Rientjes <rientjes@...gle.com> wrote:

> On Wed, 16 Sep 2009, KAMEZAWA Hiroyuki wrote:
> 
> > Index: mmotm-2.6.31-Sep14/arch/powerpc/mm/mem.c
> > ===================================================================
> > --- mmotm-2.6.31-Sep14.orig/arch/powerpc/mm/mem.c
> > +++ mmotm-2.6.31-Sep14/arch/powerpc/mm/mem.c
> > @@ -166,7 +166,7 @@ walk_system_ram_range(unsigned long star
> >  	}
> >  	return ret;
> >  }
> > -EXPORT_SYMBOL_GPL(walk_memory_resource);
> > +EXPORT_SYMBOL_GPL(walk_system_ram_range);
> >  
> >  /*
> >   * Initialize the bootmem system and give it all the memory we
> > 
> 
> Um, doesn't drivers/infiniband/hw/ehca/ehca_mrmw.c need to be fixed too?
> 
Hmm?..yes. nice catch...
my GTAGS doesn't catch it...maybe need to be updated..
I'm sorry that I didn't imagine this is widely used because this was under
CONFIG_MEMORY_HOTPLUG....

How about this ?
==
walk-system-ram-range.patch failes to catch recent change in
inifiniband. This is a fix.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>

---
 drivers/infiniband/hw/ehca/ehca_mrmw.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: mmotm-2.6.31-Sep14/drivers/infiniband/hw/ehca/ehca_mrmw.c
===================================================================
--- mmotm-2.6.31-Sep14.orig/drivers/infiniband/hw/ehca/ehca_mrmw.c
+++ mmotm-2.6.31-Sep14/drivers/infiniband/hw/ehca/ehca_mrmw.c
@@ -2463,7 +2463,7 @@ int ehca_create_busmap(void)
 	int ret;
 
 	ehca_mr_len = 0;
-	ret = walk_memory_resource(0, 1ULL << MAX_PHYSMEM_BITS, NULL,
+	ret = walk_system_ram_range(0, 1ULL << MAX_PHYSMEM_BITS, NULL,
 				   ehca_create_busmap_callback);
 	return ret;
 }




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