ktime_get_ns

函数名称：ktime_get_ns

函数原型：static inline u64 ktime_get_ns(void)

返回类型：u64

参数：无

154

返回:Convert ktime_t to nanoseconds

**调用者**
名称	描述
__run_one
test_rhashtable
crc32c_test
crc32_test
copy_process	创建进程
udelay_test_single
fill_ac	Write an accounting entry for an exiting process* The acct_process() call is the workhorse of the process* accounting system. The struct acct is built here and then written* into the accounting file. This function should only be called from
delayacct_end	Finish delay accounting for a statistic using its timestamps (@start),* accumalator (@total) and @count
__delayacct_blkio_start
__delayacct_freepages_start
__delayacct_thrashing_start
fill_stats_for_tgid
bacct_add_tsk	ll in basic accounting fields
bpf_check
blk_rq_init
blk_account_io_flush
blk_mq_rq_ctx_init
blk_mq_get_request
__blk_mq_end_request
blk_mq_start_request
throtl_tg_is_idle
blk_throtl_update_idletime
ioc_autop_idx
ioc_rqos_done
bfq_check_fifo	Return expired entry, or NULL to just start from scratch in rbtree.
bfq_bfqq_handle_idle_busy_switch
bfq_add_request
bfq_reset_rate_computation
bfq_update_peak_rate	Update the read/write peak rate (the main quantity used for* auto-tuning, see update_thr_responsiveness_params())
bfq_init_bfqq
bfq_update_io_thinktime
__bfq_insert_request	rns true if it causes the idle timer to be disabled
bfq_completed_request
bfq_update_inject_limit	The processes associated with bfqq may happen to generate their* cumulative I/O at a lower rate than the rate at which the device* could serve the same I/O. This is rather probable, e.g., if only
bio_issue_init
tcp_clock_ns

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