From 3d6efbf62c797a2924785f482e4ce8aa8820ec72 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Wed, 8 Jan 2014 09:33:37 -0800
Subject: blk-mq: use __smp_call_function_single directly

__smp_call_function_single already avoids multiple IPIs by internally
queing up the items, and now also is available for non-SMP builds as
a trivially correct stub, so there is no need to wrap it.  If the
additional lock roundtrip cause problems my patch to convert the
generic IPI code to llists is waiting to get merged will fix it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-mq.h | 1 -
 1 file changed, 1 deletion(-)

(limited to 'block/blk-mq.h')

diff --git a/block/blk-mq.h b/block/blk-mq.h
index e151a2f4f171..5c3917984b00 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -40,7 +40,6 @@ void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier,
 void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier *notifier);
 void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier *notifier);
 void blk_mq_cpu_init(void);
-DECLARE_PER_CPU(struct llist_head, ipi_lists);
 
 /*
  * CPU -> queue mappings
-- 
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