blkcg_print

函数名称：lkcg_print_blkgs - helper for printing per-blkg data*@sf: seq_file to print to*@blkcg: blkcg of interest*@prfill: fill function to print out a blkg*@pol: policy in question*@data: data to be passed to @prfill*@show_total: to print out sum of prfill return

函数原型：void blkcg_print_blkgs(struct seq_file *sf, struct blkcg *blkcg, u64 (*prfill)(struct seq_file *, struct blkg_policy_data *, int ), const struct blkcg_policy *pol, int data, bool show_total)

返回类型：void

参数：

类型	参数	名称
struct seq_file *	sf
struct blkcg *	blkcg
u64 (*	prfill
const struct blkcg_policy *	pol
int	data
bool	show_total

528

total等于0

530

_read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other

532

spin_lock_irq( & queue_lock)

533

如果blkcg_policy_enabled( Pointer to the associated request_queue , pol)则total加等于prfill(sf, pd[plid], data)

535

spin_unlock_irq( & queue_lock)

537

_read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()

539

如果show_total则seq_printf(sf, "Total %llu\n", (unsignedlonglong)total)

**调用者**
名称	描述
tg_print_conf_u64
tg_print_conf_uint
tg_print_rwstat
tg_print_rwstat_recursive
tg_print_limit
iolatency_print_limit
ioc_weight_show
ioc_qos_show
ioc_cost_model_show

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

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