Function report |
Source Code:kernel\events\core.c |
Create Date:2022-07-28 13:41:36 |
Last Modify:2022-05-20 07:50:19 | Copyright©Brick |
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Name:Creates the child task context and tries to inherit the event-group.* Clears @inherited_all on !attr.inherited or error. Note that we'll leave* inherited_all set when we 'fail' to inherit an orphaned event; this is
Proto:static int inherit_task_group(struct perf_event *event, struct task_struct *parent, struct perf_event_context *parent_ctx, struct task_struct *child, int ctxn, int *inherited_all)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct perf_event * | event | |
struct task_struct * | parent | |
struct perf_event_context * | parent_ctx | |
struct task_struct * | child | |
int | ctxn | |
int * | inherited_all |
12227 | If Not inherit Then |
12228 | inherited_all = 0 |
12229 | Return 0 |
12232 | child_ctx = perf_event_ctxp[ctxn] |
12233 | If Not child_ctx Then |
12240 | child_ctx = alloc_perf_context(pmu, child) |
12244 | perf_event_ctxp[ctxn] = child_ctx |
12250 | If ret Then inherited_all = 0 |
12253 | Return ret |
Name | Describe |
---|---|
perf_event_init_context | Initialize the perf_event context in task_struct |
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