diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 6686dbc0f1af..b13367deba9d 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -20,6 +20,7 @@ #include #include #include +#include /* * Export tracepoints that act as a bare tracehook (ie: have no trace event @@ -69,3 +70,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sysrq_crash); EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_group); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_map_util_freq); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_em_pd_energy); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cgroup_set_task); diff --git a/include/trace/hooks/cgroup.h b/include/trace/hooks/cgroup.h new file mode 100644 index 000000000000..cc44ccf9e109 --- /dev/null +++ b/include/trace/hooks/cgroup.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM cgroup +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH trace/hooks +#if !defined(_TRACE_HOOK_CGROUP_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_HOOK_CGROUP_H +#include +#include + +struct task_struct; +DECLARE_HOOK(android_vh_cgroup_set_task, + TP_PROTO(int ret, struct task_struct *task), + TP_ARGS(ret, task)); +#endif + +#include diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index 7b9ee484abab..c91f8a1e012b 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -17,6 +17,7 @@ #include #include +#include #define cg_invalf(fc, fmt, ...) invalf(fc, fmt, ## __VA_ARGS__) @@ -522,6 +523,7 @@ static ssize_t __cgroup1_procs_write(struct kernfs_open_file *of, goto out_finish; ret = cgroup_attach_task(cgrp, task, threadgroup); + trace_android_vh_cgroup_set_task(ret, task); out_finish: cgroup_procs_write_finish(task);