linux-kernel - linux-next: manual merge of the percpu tree with the tip tree

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Date:	Thu, 9 Oct 2014 15:50:18 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Tejun Heo <tj@...nel.org>, Rusty Russell <rusty@...tcorp.com.au>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: linux-next: manual merge of the percpu tree with the tip tree

Hi all,

Today's linux-next merge of the percpu tree got a conflict in
kernel/irq_work.c between commit 76a33061b932 ("irq_work: Force raised
irq work to run on irq work interrupt") from the tip tree and commit
22127e93c587 ("time: Replace __get_cpu_var uses") from the percpu tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

diff --cc kernel/irq_work.c
index 385b85aded19,345d19edcdae..000000000000
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@@ -113,12 -113,10 +113,12 @@@ bool irq_work_needs_cpu(void
  {
  	struct llist_head *raised, *lazy;
  
- 	raised = &__get_cpu_var(raised_list);
- 	lazy = &__get_cpu_var(lazy_list);
+ 	raised = this_cpu_ptr(&raised_list);
+ 	lazy = this_cpu_ptr(&lazy_list);
 -	if (llist_empty(raised) && llist_empty(lazy))
 -		return false;
 +
 +	if (llist_empty(raised) || arch_irq_work_has_interrupt())
 +		if (llist_empty(lazy))
 +			return false;
  
  	/* All work should have been flushed before going offline */
  	WARN_ON_ONCE(cpu_is_offline(smp_processor_id()));

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