函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\genhd.c Create Date:2022-07-27 18:55:22
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：The default polling interval can be specified by the kernel* parameter block.events_dfl_poll_msecs which defaults to 0* (disable). This can also be modified runtime by writing to* /sys/module/block/parameters/events_dfl_poll_msecs.

函数原型：static int disk_events_set_dfl_poll_msecs(const char *val, const struct kernel_param *kp)

返回类型：int

参数：

类型参数名称
const char *val
const struct kernel_param *kp
1993  ret等于param_set_ulong(val, kp)
1994  如果ret小于0则返回:ret
1997  mutex_lock( & list of all disk_events )
1999  list_for_each_entry - iterate over list of given type*@pos: the type * to use as a loop cursor.*@head: the head for your list.*@member: the name of the list_head within the struct.(ev, & disk_events, node)
2000  disk_flush_events - schedule immediate event checking and flushing*@disk: disk to check and flush events for*@mask: events to flush* Schedule immediate event checking on @disk if not blocked. Events in*@mask are scheduled to be cleared from the driver
2002  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.
2004  返回:0