函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\time\posix-cpu-timers.c Create Date:2022-07-27 11:47:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：update_gt_cputime

函数原型：static void update_gt_cputime(struct task_cputime_atomic *cputime_atomic, struct task_cputime *sum)

返回类型：void

参数：

类型参数名称
struct task_cputime_atomic *cputime_atomic
struct task_cputime *sum
261  Set cputime to sum_cputime if sum_cputime > cputime. Use cmpxchg* to avoid race conditions with concurrent updates to cputime.
262  Set cputime to sum_cputime if sum_cputime > cputime. Use cmpxchg* to avoid race conditions with concurrent updates to cputime.
263  Set cputime to sum_cputime if sum_cputime > cputime. Use cmpxchg* to avoid race conditions with concurrent updates to cputime.
调用者
名称描述
thread_group_start_cputimehread_group_start_cputime - Start cputime and return a sample*@tsk: Task for which cputime needs to be started*@samples: Storage for time samples* The thread group cputime accouting is avoided when there are no posix* CPU timers armed