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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>
This commit is contained in:
Yang Yang 2021-07-08 17:55:51 +08:00 committed by Greg Kroah-Hartman
parent 292baba45a
commit 2faed77792
3 changed files with 8 additions and 0 deletions
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1
block/blk-mq.c
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@ -343,6 +343,7 @@ 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
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@ -241,6 +241,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_selinux_avc_node_delete);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_selinux_avc_node_replace);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_selinux_avc_lookup);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_alloc_rqs);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_rq_ctx_init);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_commit_creds);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_exit_creds);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_override_creds);

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 */