From dc818cc2a12a7e075018024d88def68077f81bfb Mon Sep 17 00:00:00 2001 From: Michael Jeanson Date: Mon, 21 Nov 2022 12:18:45 -0500 Subject: [PATCH] Drop support for kernels < 4.4 from sched instrumentation Change-Id: I14e8ceb3ed5dedb294dbbfecce454cd05d3417b8 Signed-off-by: Michael Jeanson Signed-off-by: Mathieu Desnoyers --- include/instrumentation/events/sched.h | 165 +------------------------ 1 file changed, 2 insertions(+), 163 deletions(-) diff --git a/include/instrumentation/events/sched.h b/include/instrumentation/events/sched.h index f10f94d4..a08495e8 100644 --- a/include/instrumentation/events/sched.h +++ b/include/instrumentation/events/sched.h @@ -10,9 +10,7 @@ #include #include #include -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) #include -#endif #define LTTNG_MAX_PID_NS_LEVEL 32 @@ -105,7 +103,7 @@ static inline long __trace_sched_switch_state(bool preempt, struct task_struct * return state ? (1 << (state - 1)) : state; } -#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) +#else static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) { @@ -118,78 +116,6 @@ static inline long __trace_sched_switch_state(bool preempt, struct task_struct * */ return preempt ? TASK_RUNNING | TASK_STATE_MAX : p->state; } - -#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,19,0)) - -static inline long __trace_sched_switch_state(struct task_struct *p) -{ - long state = p->state; - -#ifdef CONFIG_PREEMPT -#ifdef CONFIG_SCHED_DEBUG - BUG_ON(p != current); -#endif /* CONFIG_SCHED_DEBUG */ - /* - * For all intents and purposes a preempted task is a running task. - */ - if (preempt_count() & PREEMPT_ACTIVE) - state = TASK_RUNNING | TASK_STATE_MAX; -#endif /* CONFIG_PREEMPT */ - - return state; -} - -#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,13,0)) - -static inline long __trace_sched_switch_state(struct task_struct *p) -{ - long state = p->state; - -#ifdef CONFIG_PREEMPT - /* - * For all intents and purposes a preempted task is a running task. - */ - if (task_preempt_count(p) & PREEMPT_ACTIVE) - state = TASK_RUNNING | TASK_STATE_MAX; -#endif - - return state; -} - -#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) - -static inline long __trace_sched_switch_state(struct task_struct *p) -{ - long state = p->state; - -#ifdef CONFIG_PREEMPT - /* - * For all intents and purposes a preempted task is a running task. - */ - if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE) - state = TASK_RUNNING | TASK_STATE_MAX; -#endif - - return state; -} - -#else - -static inline long __trace_sched_switch_state(struct task_struct *p) -{ - long state = p->state; - -#ifdef CONFIG_PREEMPT - /* - * For all intents and purposes a preempted task is a running task. - */ - if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE) - state = TASK_RUNNING; -#endif - - return state; -} - #endif #endif /* _TRACE_SCHED_DEF_ */ @@ -208,18 +134,11 @@ LTTNG_TRACEPOINT_ENUM(task_state, ctf_enum_value("TASK_TRACED", __TASK_TRACED) ctf_enum_value("EXIT_DEAD", EXIT_DEAD) ctf_enum_value("EXIT_ZOMBIE", EXIT_ZOMBIE) - -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) ctf_enum_value("TASK_PARKED", TASK_PARKED) -#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */ - ctf_enum_value("TASK_DEAD", TASK_DEAD) ctf_enum_value("TASK_WAKEKILL", TASK_WAKEKILL) ctf_enum_value("TASK_WAKING", TASK_WAKING) - -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD) -#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */ #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) ctf_enum_value("TASK_NEW", TASK_NEW) @@ -262,14 +181,6 @@ LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret, /* * Tracepoint for waking up a task: */ -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \ - LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0)) LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, TP_PROTO(struct task_struct *p), @@ -283,31 +194,6 @@ LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, ctf_integer(int, target_cpu, task_cpu(p)) ) ) -#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ -LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, - - TP_PROTO(struct task_struct *p, int success), - - TP_ARGS(p, success), - - TP_FIELDS( - ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) - ctf_integer(pid_t, tid, p->pid) - ctf_integer(int, prio, p->prio - MAX_RT_PRIO) - ctf_integer(int, success, success) - ctf_integer(int, target_cpu, task_cpu(p)) - ) -) -#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ - -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \ - LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \ - LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0)) /* * Tracepoint called when waking a task; this tracepoint is guaranteed to be @@ -332,21 +218,6 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new, TP_PROTO(struct task_struct *p), TP_ARGS(p)) -#else - -LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup, - TP_PROTO(struct task_struct *p, int success), - TP_ARGS(p, success)) - -/* - * Tracepoint for waking up a new task: - */ -LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new, - TP_PROTO(struct task_struct *p, int success), - TP_ARGS(p, success)) - -#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ - /* * Tracepoint for task switches, performed by the scheduler: */ @@ -376,7 +247,7 @@ LTTNG_TRACEPOINT_EVENT(sched_switch, ) ) -#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) +#else LTTNG_TRACEPOINT_EVENT(sched_switch, @@ -400,30 +271,6 @@ LTTNG_TRACEPOINT_EVENT(sched_switch, ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO) ) ) - -#else - -LTTNG_TRACEPOINT_EVENT(sched_switch, - - TP_PROTO(struct task_struct *prev, - struct task_struct *next), - - TP_ARGS(prev, next), - - TP_FIELDS( - ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN) - ctf_integer(pid_t, prev_tid, prev->pid) - ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO) -#ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM - ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(prev)) -#else - ctf_integer(long, prev_state, __trace_sched_switch_state(prev)) -#endif - ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN) - ctf_integer(pid_t, next_tid, next->pid) - ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO) - ) -) #endif /* @@ -532,7 +379,6 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN) ctf_integer(pid_t, parent_tid, parent->pid) ctf_integer(pid_t, parent_pid, parent->tgid) -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) ctf_integer(unsigned int, parent_ns_inum, ({ unsigned int parent_ns_inum = 0; @@ -547,12 +393,10 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, } parent_ns_inum; })) -#endif ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN) ctf_integer(pid_t, child_tid, child->pid) ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level) ctf_integer(pid_t, child_pid, child->tgid) -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) ctf_integer(unsigned int, child_ns_inum, ({ unsigned int child_ns_inum = 0; @@ -567,13 +411,11 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, } child_ns_inum; })) -#endif ), TP_code_post() ) -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0)) /* * Tracepoint for exec: */ @@ -590,7 +432,6 @@ LTTNG_TRACEPOINT_EVENT(sched_process_exec, ctf_integer(pid_t, old_tid, old_pid) ) ) -#endif /* * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE @@ -634,14 +475,12 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait, TP_PROTO(struct task_struct *tsk, u64 delay), TP_ARGS(tsk, delay)) -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0)) /* * Tracepoint for accounting blocked time (time the task is in uninterruptible). */ LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked, TP_PROTO(struct task_struct *tsk, u64 delay), TP_ARGS(tsk, delay)) -#endif /* * Tracepoint for accounting runtime (time the task is executing -- 2.34.1