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Subject[PATCH]: xen: fix too early kmalloc call
Subject: xen: fix too early kmalloc call

From: Christophe Saout <christophe@saout.de>

Impact: fixes bootup of xen.

Christophe reported the following problem:

> (basically it seems that SLAB is not yet up, with earlyprintk it is
> giving me an Oops in __kmalloc before)

Replace call to kmalloc with alloc_bootmem.

Also from Christophe:
> (me)
> > Or I could copy the text and submit it as a new patch?
>
> Yes, I would prefer that. Also, my commit message was not really
> following Kernel standards and it's only a very simple change.

Signed-off-by: Mike Travis <travis@sgi.com>
---
drivers/xen/events.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- linux-2.6-for-ingo.orig/drivers/xen/events.c
+++ linux-2.6-for-ingo/drivers/xen/events.c
@@ -26,6 +26,7 @@
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/string.h>
+#include <linux/bootmem.h>

#include <asm/ptrace.h>
#include <asm/irq.h>
@@ -831,8 +832,8 @@ void __init xen_init_IRQ(void)
int i;
size_t size = nr_cpu_ids * sizeof(struct cpu_evtchn_s);

- cpu_evtchn_mask_p = kmalloc(size, GFP_KERNEL);
- BUG_ON(cpu_evtchn_mask == NULL);
+ cpu_evtchn_mask_p = alloc_bootmem(size);
+ BUG_ON(cpu_evtchn_mask_p == NULL);

init_evtchn_cpu_bindings();


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