Commit 01aa8c86 authored by Dr. David Alan Gilbert's avatar Dr. David Alan Gilbert Committed by Jens Axboe
Browse files

blk-throttle: remove more latency dead-code 



The struct 'latency_bucket' and the #define 'request_bucket_index'
are unused since
commit bf20ab53 ("blk-throttle: remove CONFIG_BLK_DEV_THROTTLING_LOW")

and the 'LATENCY_BUCKET_SIZE' #define was only used by the
'request_bucket_index' define.

Remove them.

Signed-off-by: default avatarDr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20240727155824.1000042-1-linux@treblig.org


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent f6bb5254

block/blk-throttle.c

+0 −11
Original line number Diff line number Diff line
@@ -31,14 +31,6 @@ static struct workqueue_struct *kthrotld_workqueue; 


#define rb_entry_tg(node)	rb_entry((node), struct throtl_grp, rb_node)



/* We measure latency for request size from <= 4k to >= 1M */

#define LATENCY_BUCKET_SIZE 9



struct latency_bucket {

	unsigned long total_latency; /* ns / 1024 */

	int samples;

};



struct throtl_data

{

	/* service tree for active throtl groups */
@@ -116,9 +108,6 @@ static unsigned int tg_iops_limit(struct throtl_grp *tg, int rw) 
	return tg->iops[rw];

}



#define request_bucket_index(sectors) \

	clamp_t(int, order_base_2(sectors) - 3, 0, LATENCY_BUCKET_SIZE - 1)



/**

 * throtl_log - log debug message via blktrace

 * @sq: the service_queue being reported