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authorNeilBrown <neilb@suse.de>2012-12-14 20:49:27 +0100
committerJens Axboe <axboe@kernel.dk>2012-12-14 20:49:27 +0100
commitcbae8d45d61f3a8c155caf267d01e5e0f0b2f4b7 (patch)
treebf5920d41e2f948ce92b9dbe8bf3919290000f4e /block/blk-core.c
parent0cfbcafcae8b7364b5fa96c2b26ccde7a3a296a9 (diff)
downloadlinux-linaro-stable-cbae8d45d61f3a8c155caf267d01e5e0f0b2f4b7.tar.gz
block: export block_unplug tracepoint
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> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
-rw-r--r--block/blk-core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 473015ee28a2..c973249d68cd 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);