Re: [PATCH 1/1] percpu: fix early calls for spinlock in pcpu_stats

[Tejun Heo]

On Wed, Jun 21, 2017 at 01:52:46PM -0400, Dennis Zhou wrote:
> From 2c06e795162cb306c9707ec51d3e1deadb37f573 Mon Sep 17 00:00:00 2001
> From: Dennis Zhou <dennisz@xxxxxx>
> Date: Wed, 21 Jun 2017 10:17:09 -0700
> 
> Commit 30a5b5367ef9 ("percpu: expose statistics about percpu memory via
> debugfs") introduces percpu memory statistics. pcpu_stats_chunk_alloc
> takes the spin lock and disables/enables irqs on creation of a chunk. Irqs
> are not enabled when the first chunk is initialized and thus kernels are
> failing to boot with kernel debugging enabled. Fixed by changing _irq to
> _irqsave and _irqrestore.
> 
> Fixes: 30a5b5367ef9 ("percpu: expose statistics about percpu memory via debugfs")
> Signed-off-by: Dennis Zhou <dennisz@xxxxxx>
> Reported-by: Alexander Levin <alexander.levin@xxxxxxxxxxx>

Applied to percpu/for-4.13.

Thanks.

-- 
tejun