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ANDROID: vendor_hooks: add vendor hook in blk_mq_rq_ctx_init()

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This vendor hook let us initialize payload of the request.

Bug: 188749221
Change-Id: I51d6a3010ac0ab36066dbe1368158592832112b7
Signed-off-by: Yang Yang <yang.yang@vivo.com>
(cherry picked from commit 2faed77792)
This commit is contained in:
Yang Yang
2022-06-01 15:22:49 -06:00
committed by Todd Kjos
parent 1c6391dd7a
commit a41c70ee0b
3 changed files with 8 additions and 0 deletions
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1
block/blk-mq.c
View File

@@ -351,6 +351,7 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
}
data->hctx->queued++;
trace_android_vh_blk_rq_ctx_init(rq, tags, data, alloc_time_ns);
return rq;
}

1
drivers/android/vendor_hooks.c
View File

@@ -303,3 +303,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_regmap_update);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dma_buf_release);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmc_check_status);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_alloc_rqs);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_rq_ctx_init);

6
include/trace/hooks/block.h
View File

@@ -12,12 +12,18 @@
struct blk_mq_tag_set;
struct blk_mq_tags;
struct blk_mq_alloc_data;
DECLARE_HOOK(android_vh_blk_alloc_rqs,
TP_PROTO(size_t *rq_size, struct blk_mq_tag_set *set,
struct blk_mq_tags *tags),
TP_ARGS(rq_size, set, tags));
DECLARE_HOOK(android_vh_blk_rq_ctx_init,
TP_PROTO(struct request *rq, struct blk_mq_tags *tags,
struct blk_mq_alloc_data *data, u64 alloc_time_ns),
TP_ARGS(rq, tags, data, alloc_time_ns));
#endif /* _TRACE_HOOK_BLOCK_H */
/* This part must be outside protection */