kyber_get_domain_token

Name:kyber_get_domain_token

Proto:static int kyber_get_domain_token(struct kyber_queue_data *kqd, struct kyber_hctx_data *khd, struct blk_mq_hw_ctx *hctx)

Type:int

Parameter:

Type	Parameter	Name
struct kyber_queue_data *	kqd
struct kyber_hctx_data *	khd
struct blk_mq_hw_ctx *	hctx

706

sched_domain = cur_domain

707

domain_tokens = * Each scheduling domain has a limited number of in-flight requests * device-wide, limited by these tokens.[sched_domain]

708

wait = domain_wait[sched_domain]

712

nr = __sbitmap_queue_get(domain_tokens)

719

If nr < 0 && list_empty_careful - tests whether a list is empty and not being modified*@head: the list to test* Description:* tests whether a list is empty _and_ checks that no other CPU might be* in the process of modifying either member (next or prev)* NOTE: using Then

720

ws = sbq_wait_ptr() - Get the next wait queue to use for a &struct* sbitmap_queue.*@sbq: Bitmap queue to wait on.*@wait_index: A counter per "user" of @sbq.

722

domain_ws[sched_domain] = ws

723

sbitmap_add_wait_queue(domain_tokens, ws, wait)

729

nr = __sbitmap_queue_get(domain_tokens)

739

If nr >= 0 && Not list_empty_careful - tests whether a list is empty and not being modified*@head: the list to test* Description:* tests whether a list is empty _and_ checks that no other CPU might be* in the process of modifying either member (next or prev)* NOTE: using Then

740

ws = domain_ws[sched_domain]

741

spin_lock_irq( & lock)

742

sbitmap_del_wait_queue(wait)

743

spin_unlock_irq( & lock)

746

Return nr

**Caller**
Name	Describe
kyber_dispatch_cur_domain

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion