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ANDROID: add hooks into blk-mq-sched.c for customized I/O scheduler

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android_vh_blk_mq_sched_insert_request: Add judgment on rq. If it is a
customized rq, it needs to be added to the corresponding customized
queue

Bug: 319582497

Change-Id: I2bf8fee37273b3495d60c64bb53e43debceb5614
Signed-off-by: hao lv <hao.lv5@transsion.com>
This commit is contained in:
hao lv 2024-01-10 20:36:37 +08:00
parent 6912e0c8e9
commit 94b9d8e513
3 changed files with 10 additions and 1 deletions
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6
block/blk-mq-sched.c
View File

@ -422,6 +422,7 @@ static bool blk_mq_sched_bypass_insert(struct blk_mq_hw_ctx *hctx,
return false;
}
#include <trace/hooks/block.h>
void blk_mq_sched_insert_request(struct request *rq, bool at_head,
bool run_queue, bool async)
{
@ -429,10 +430,13 @@ void blk_mq_sched_insert_request(struct request *rq, bool at_head,
struct elevator_queue *e = q->elevator;
struct blk_mq_ctx *ctx = rq->mq_ctx;
struct blk_mq_hw_ctx *hctx = rq->mq_hctx;
bool skip = false;
WARN_ON(e && (rq->tag != BLK_MQ_NO_TAG));
if (blk_mq_sched_bypass_insert(hctx, !!e, rq)) {
trace_android_vh_blk_mq_sched_insert_request(&skip, rq);
if (!skip && blk_mq_sched_bypass_insert(hctx, !!e, rq)) {
/*
* Firstly normal IO request is inserted to scheduler queue or
* sw queue, meantime we add flush request to dispatch queue(

1
drivers/android/vendor_hooks.c
View File

@ -536,6 +536,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_alloc_flush_queue);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_mq_all_tag_iter);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_mq_queue_tag_busy_iter);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_mq_free_tags);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_blk_mq_sched_insert_request);
/*
* For type visibility
*/

4
include/trace/hooks/block.h
View File

@ -113,6 +113,10 @@ DECLARE_HOOK(android_vh_blk_alloc_flush_queue,
struct blk_flush_queue *fq),
TP_ARGS(skip, cmd_size, flags, node, fq));
DECLARE_HOOK(android_vh_blk_mq_sched_insert_request,
TP_PROTO(bool *skip, struct request *rq),
TP_ARGS(skip, rq));
#endif /* _TRACE_HOOK_BLOCK_H */
/* This part must be outside protection */