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authorJun'ichi Nomura <j-nomura@ce.jp.nec.com>2009-10-01 21:16:13 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-10-01 21:19:34 +0200
commitb0da3f0dada78832c9da03ad2152ae76bd9a2496 (patch)
tree58380f5d8f3c313fbb9fd0310509a408b38a0399 /block
parent67efc9258010da35b27b3854d0880c7e193004ed (diff)
Add a tracepoint for block request remapping
Since 2.6.31 now has request-based device-mapper, it's useful to have a tracepoint for request-remapping as well as bio-remapping. This patch adds a tracepoint for request-remapping, trace_block_rq_remap(). Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block')
-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 34504f30972..ddaaea4fdff 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -34,6 +34,7 @@
#include "blk.h"
EXPORT_TRACEPOINT_SYMBOL_GPL(block_remap);
+EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_remap);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_complete);
static int __make_request(struct request_queue *q, struct bio *bio);