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ANDROID: block: export tracepoints

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This patch will export some tracepoints so that vendor modules can use them.
Export these tracepoint functions to track IO data flow for performance tuning.

Bug: 205648026
Bug: 283892333
Bug: 332441085
Change-Id: Ia37b8f99b2d940cecce46c8bc24f724c14450517
Signed-off-by: Yang Yang <yang.yang@vivo.com>
(cherry picked from commit 0ab6144addb55562f7fb8a0ff9e69c4e12c8d05c)
(cherry picked from commit 92d74979f1df4b6d058fb7fc0334074a3ac55131)
This commit is contained in:
Yang Yang
2021-11-09 10:42:15 +08:00
committed by Treehugger Robot
parent a2d282588e
commit 952ba0ed61
1 changed files with 6 additions and 0 deletions
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block/blk-core.c
+6
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@@ -59,6 +59,12 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_complete);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_split);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_insert);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_queue);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_getrq);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_issue);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_merge);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_requeue);
EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_complete);
static DEFINE_IDA(blk_queue_ida);