Messages in this thread Patch in this message | | | From | "Srivatsa S. Bhat" <> | Subject | [PATCH v3 40/45] powerpc, irq: Use GFP_ATOMIC allocations in atomic context | Date | Fri, 28 Jun 2013 01:29:49 +0530 |
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The function migrate_irqs() is called with interrupts disabled and hence its not safe to do GFP_KERNEL allocations inside it, because they can sleep. So change the gfp mask to GFP_ATOMIC.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> ---
arch/powerpc/kernel/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index ea185e0..ca39bac 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -412,7 +412,7 @@ void migrate_irqs(void) cpumask_var_t mask; const struct cpumask *map = cpu_online_mask; - alloc_cpumask_var(&mask, GFP_KERNEL); + alloc_cpumask_var(&mask, GFP_ATOMIC); for_each_irq_desc(irq, desc) { struct irq_data *data;
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