函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-27 13:09:08
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：tracing_buffers_release

函数原型：static int tracing_buffers_release(struct inode *inode, struct file *file)

返回类型：int

参数：

类型参数名称
struct inode *inode
struct file *file
7418  info等于 needed for tty driver, and maybe others
7419  iter等于iter
7421  mutex_lock( & race_types_lock is used to protect the trace_types list.)
7423  ref自减
7425  __trace_array_put(tr)
7427  如果spare则g_buffer_free_read_page - free an allocated read page*@buffer: the buffer the page was allocate for*@cpu: the cpu buffer the page came from*@data: the page to free* Free a page allocated from ring_buffer_alloc_read_page.
7430  kfree(info)
7432  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
7434  返回:0