函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\time\timer.c Create Date:2022-07-27 11:39:54
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：schedule_timeout_killable

函数原型：signed long __sched schedule_timeout_killable(signed long timeout)

返回类型：signed long

参数：

类型参数名称
signed longtimeout
1921  set_current_state() includes a barrier so that the write of current->state* is correctly serialised wrt the caller's subsequent test of whether to* actually sleep:* for (;;) {* set_current_state(TASK_UNINTERRUPTIBLE);* if (!need_sleep)* break;* (Convenience macros for the sake of set_current_state: )
1922  返回:schedule_timeout - sleep until timeout*@timeout: timeout value in jiffies* Make the current task sleep until @timeout jiffies have* elapsed
调用者
名称描述
memfd_wait_for_pinsSetting SEAL_WRITE requires us to verify there's no pending writer. However,* via get_user_pages(), drivers might have some pending I/O without any active* user-space mappings (eg., direct-IO, AIO). Therefore, we look at all pages
mem_cgroup_handle_over_highScheduled by try_charge() to be executed from the userland return path* and reclaims memory over the high limit.