函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\splice.c Create Date:2022-07-29 10:42:06
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：wakeup_pipe_readers

函数原型：static void wakeup_pipe_readers(struct pipe_inode_info *pipe)

返回类型：void

参数：

类型参数名称
struct pipe_inode_info *pipe
167  smp_mb()
168  如果waitqueue_active -- locklessly test for waiters on the queue*@wq_head: the waitqueue to test for waiters* returns true if the wait list is not empty* NOTE: this function is lockless and requires care, incorrect usage _will_则wake_up_interruptible( & wait)
170  kill_fasync( & fasync_readers, SIGIO, data input available )
调用者
名称描述
do_spliceDetermine where to splice to/from.
vmsplice_to_pipevmsplice splices a user address range into a pipe. It can be thought of* as splice-from-memory, where the regular splice is splice-from-file (or* to file). In both cases the output is a pipe, naturally.
splice_pipe_to_pipe
link_pipeLink contents of ipipe to opipe.