From: NeilBrown <neilb@suse.de>
Date: Mon, 15 Oct 2012 22:18:52 +0000 (+1100)
Subject: block: export trace_block_unplug
X-Git-Tag: next-20121016~34^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=707aa6f93b14a775d683da5d6590e98f368893d0;p=karo-tx-linux.git

block: export trace_block_unplug

This allows stacked devices (like md/raid5) to provide blktrace
tracing, including unplug events.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/block/blk-core.c b/block/blk-core.c
index a33870b1847b..b421289928ed 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -40,6 +40,7 @@
 EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_remap);
 EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_remap);
 EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_complete);
+EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug);
 
 DEFINE_IDA(blk_queue_ida);