函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_events_filter.c Create Date:2022-07-27 13:33:04
Last Modify:2022-05-22 20:19:57 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：filter_disable

函数原型：static void filter_disable(struct trace_event_file *file)

返回类型：void

参数：

类型参数名称
struct trace_event_file *file
1022  old_flags等于* 32 bit flags: * bit 0: enabled * bit 1: enabled cmd record * bit 2: enable/disable with the soft disable bit * bit 3: soft disabled * bit 4: trigger enabled * Note: The bits must be set atomically to prevent races * from other writers. Reads of flags do
1024  * 32 bit flags: * bit 0: enabled * bit 1: enabled cmd record * bit 2: enable/disable with the soft disable bit * bit 3: soft disabled * bit 4: trigger enabled * Note: The bits must be set atomically to prevent races * from other writers. Reads of flags do 与等于EVENT_FILE_FL_FILTERED的反
1026  如果old_flags不等于* 32 bit flags: * bit 0: enabled * bit 1: enabled cmd record * bit 2: enable/disable with the soft disable bit * bit 3: soft disabled * bit 4: trigger enabled * Note: The bits must be set atomically to prevent races * from other writers. Reads of flags do 则race_buffered_event_disable - disable buffering events* When a filter is removed, it is faster to not use the buffered* events, and to commit directly into the ring buffer. Free up* the temp buffers when there are no more users. This requires
调用者
名称描述
__remove_filter
process_system_preds
apply_event_filteraller must hold event_mutex