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| author | Jun'ichi Nomura <j-nomura@ce.jp.nec.com> | 2009-10-01 21:16:13 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-10-01 21:16:13 +0200 |
| commit | 1a35e0f6443f4266dad4c569c55c57a9032596fa (patch) | |
| tree | 58380f5d8f3c313fbb9fd0310509a408b38a0399 /block | |
| parent | block: allow large discard requests (diff) | |
| download | linux-1a35e0f6443f4266dad4c569c55c57a9032596fa.tar.xz linux-1a35e0f6443f4266dad4c569c55c57a9032596fa.zip | |
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.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 34504f309728..ddaaea4fdffc 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); |