diff options
| -rw-r--r-- | include/linux/tracepoint.h | 95 | ||||
| -rw-r--r-- | include/trace/ftrace.h | 14 | ||||
| -rw-r--r-- | kernel/trace/blktrace.c | 125 | ||||
| -rw-r--r-- | kernel/trace/ftrace.c | 7 | ||||
| -rw-r--r-- | kernel/trace/kmemtrace.c | 42 | ||||
| -rw-r--r-- | kernel/trace/trace_sched_switch.c | 20 | ||||
| -rw-r--r-- | kernel/trace/trace_sched_wakeup.c | 28 | ||||
| -rw-r--r-- | kernel/trace/trace_syscalls.c | 24 | ||||
| -rw-r--r-- | kernel/trace/trace_workqueue.c | 26 | ||||
| -rw-r--r-- | kernel/tracepoint.c | 91 | ||||
| -rw-r--r-- | net/core/drop_monitor.c | 12 | ||||
| -rw-r--r-- | samples/tracepoints/tp-samples-trace.h | 4 | ||||
| -rw-r--r-- | samples/tracepoints/tracepoint-probe-sample.c | 13 | ||||
| -rw-r--r-- | samples/tracepoints/tracepoint-probe-sample2.c | 7 |
14 files changed, 298 insertions, 210 deletions
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 8d5e4f6d96d0..9a59d1f98cd4 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -20,12 +20,17 @@ struct module; struct tracepoint; +struct tracepoint_func { + void *func; + void *data; +}; + struct tracepoint { const char *name; /* Tracepoint name */ int state; /* State. */ void (*regfunc)(void); void (*unregfunc)(void); - void **funcs; + struct tracepoint_func *funcs; } __attribute__((aligned(32))); /* * Aligned on 32 bytes because it is * globally visible and gcc happily @@ -37,16 +42,19 @@ struct tracepoint { * Connect a probe to a tracepoint. * Internal API, should not be used directly. */ -extern int tracepoint_probe_register(const char *name, void *probe); +extern int tracepoint_probe_register(const char *name, void *probe, void *data); /* * Disconnect a probe from a tracepoint. * Internal API, should not be used directly. */ -extern int tracepoint_probe_unregister(const char *name, void *probe); +extern int +tracepoint_probe_unregister(const char *name, void *probe, void *data); -extern int tracepoint_probe_register_noupdate(const char *name, void *probe); -extern int tracepoint_probe_unregister_noupdate(const char *name, void *probe); +extern int tracepoint_probe_register_noupdate(const char *name, void *probe, + void *data); +extern int tracepoint_probe_unregister_noupdate(const char *name, void *probe, + void *data); extern void tracepoint_probe_update_all(void); struct tracepoint_iter { @@ -102,17 +110,27 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin, /* * it_func[0] is never NULL because there is at least one element in the array * when the array itself is non NULL. + * + * Note, the proto and args passed in includes "__data" as the first parameter. + * The reason for this is to handle the "void" prototype. If a tracepoint + * has a "void" prototype, then it is invalid to declare a function + * as "(void *, void)". The DECLARE_TRACE_NOARGS() will pass in just + * "void *data", where as the DECLARE_TRACE() will pass in "void *data, proto". */ #define __DO_TRACE(tp, proto, args) \ do { \ - void **it_func; \ + struct tracepoint_func *it_func_ptr; \ + void *it_func; \ + void *__data; \ \ rcu_read_lock_sched_notrace(); \ - it_func = rcu_dereference_sched((tp)->funcs); \ - if (it_func) { \ + it_func_ptr = rcu_dereference_sched((tp)->funcs); \ + if (it_func_ptr) { \ do { \ - ((void(*)(proto))(*it_func))(args); \ - } while (*(++it_func)); \ + it_func = (it_func_ptr)->func; \ + __data = (it_func_ptr)->data; \ + ((void(*)(proto))(it_func))(args); \ + } while ((++it_func_ptr)->func); \ } \ rcu_read_unlock_sched_notrace(); \ } while (0) @@ -122,23 +140,29 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin, * not add unwanted padding between the beginning of the section and the * structure. Force alignment to the same alignment as the section start. */ -#define DECLARE_TRACE(name, proto, args) \ +#define __DECLARE_TRACE(name, proto, args, data_proto, data_args) \ extern struct tracepoint __tracepoint_##name; \ static inline void trace_##name(proto) \ { \ if (unlikely(__tracepoint_##name.state)) \ __DO_TRACE(&__tracepoint_##name, \ - TP_PROTO(proto), TP_ARGS(args)); \ + TP_PROTO(data_proto), \ + TP_ARGS(data_args)); \ } \ - static inline int register_trace_##name(void (*probe)(proto)) \ + static inline int \ + register_trace_##name(void (*probe)(data_proto), void *data) \ { \ - return tracepoint_probe_register(#name, (void *)probe); \ + return tracepoint_probe_register(#name, (void *)probe, \ + data); \ } \ - static inline int unregister_trace_##name(void (*probe)(proto)) \ + static inline int \ + unregister_trace_##name(void (*probe)(data_proto), void *data) \ { \ - return tracepoint_probe_unregister(#name, (void *)probe);\ + return tracepoint_probe_unregister(#name, (void *)probe, \ + data); \ } \ - static inline void check_trace_callback_type_##name(void (*cb)(proto)) \ + static inline void \ + check_trace_callback_type_##name(void (*cb)(data_proto)) \ { \ } @@ -158,20 +182,22 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin, EXPORT_SYMBOL(__tracepoint_##name) #else /* !CONFIG_TRACEPOINTS */ -#define DECLARE_TRACE(name, proto, args) \ - static inline void _do_trace_##name(struct tracepoint *tp, proto) \ - { } \ +#define __DECLARE_TRACE(name, proto, args, data_proto, data_args) \ static inline void trace_##name(proto) \ { } \ - static inline int register_trace_##name(void (*probe)(proto)) \ + static inline int \ + register_trace_##name(void (*probe)(data_proto), \ + void *data) \ { \ return -ENOSYS; \ } \ - static inline int unregister_trace_##name(void (*probe)(proto)) \ + static inline int \ + unregister_trace_##name(void (*probe)(data_proto), \ + void *data) \ { \ return -ENOSYS; \ } \ - static inline void check_trace_callback_type_##name(void (*cb)(proto)) \ + static inline void check_trace_callback_type_##name(void (*cb)(data_proto)) \ { \ } @@ -181,6 +207,29 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin, #define EXPORT_TRACEPOINT_SYMBOL(name) #endif /* CONFIG_TRACEPOINTS */ + +/* + * The need for the DECLARE_TRACE_NOARGS() is to handle the prototype + * (void). "void" is a special value in a function prototype and can + * not be combined with other arguments. Since the DECLARE_TRACE() + * macro adds a data element at the beginning of the prototype, + * we need a way to differentiate "(void *data, proto)" from + * "(void *data, void)". The second prototype is invalid. + * + * DECLARE_TRACE_NOARGS() passes "void" as the tracepoint prototype + * and "void *__data" as the callback prototype. + * + * DECLARE_TRACE() passes "proto" as the tracepoint protoype and + * "void *__data, proto" as the callback prototype. + */ +#define DECLARE_TRACE_NOARGS(name) \ + __DECLARE_TRACE(name, void, , void *__data, __data) + +#define DECLARE_TRACE(name, proto, args) \ + __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ + PARAMS(void *__data, proto), \ + PARAMS(__data, args)) + #endif /* DECLARE_TRACE */ #ifndef TRACE_EVENT diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 7dcdfd824aab..ba28b644f41b 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -406,18 +406,18 @@ static inline notrace int ftrace_get_offsets_##call( \ #undef DEFINE_EVENT #define DEFINE_EVENT(template, name, proto, args) \ \ -static void perf_trace_##name(proto); \ +static void perf_trace_##name(void *, proto); \ \ static notrace int \ perf_trace_enable_##name(struct ftrace_event_call *unused) \ { \ - return register_trace_##name(perf_trace_##name); \ + return register_trace_##name(perf_trace_##name, NULL); \ } \ \ static notrace void \ perf_trace_disable_##name(struct ftrace_event_call *unused) \ { \ - unregister_trace_##name(perf_trace_##name); \ + unregister_trace_##name(perf_trace_##name, NULL); \ } #undef DEFINE_EVENT_PRINT @@ -578,7 +578,7 @@ ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ #undef DEFINE_EVENT #define DEFINE_EVENT(template, call, proto, args) \ \ -static notrace void ftrace_raw_event_##call(proto) \ +static notrace void ftrace_raw_event_##call(void *__ignore, proto) \ { \ ftrace_raw_event_id_##template(&event_##call, args); \ } \ @@ -586,13 +586,13 @@ static notrace void ftrace_raw_event_##call(proto) \ static notrace int \ ftrace_raw_reg_event_##call(struct ftrace_event_call *unused) \ { \ - return register_trace_##call(ftrace_raw_event_##call); \ + return register_trace_##call(ftrace_raw_event_##call, NULL); \ } \ \ static notrace void \ ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused) \ { \ - unregister_trace_##call(ftrace_raw_event_##call); \ + unregister_trace_##call(ftrace_raw_event_##call, NULL); \ } \ \ static struct trace_event ftrace_event_type_##call = { \ @@ -793,7 +793,7 @@ perf_trace_templ_##call(struct ftrace_event_call *event_call, \ #undef DEFINE_EVENT #define DEFINE_EVENT(template, call, proto, args) \ -static notrace void perf_trace_##call(proto) \ +static notrace void perf_trace_##call(void *__ignore, proto) \ { \ struct ftrace_event_call *event_call = &event_##call; \ \ diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index b3bc91a3f510..19d93f83e3c3 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -675,28 +675,33 @@ static void blk_add_trace_rq(struct request_queue *q, struct request *rq, } } -static void blk_add_trace_rq_abort(struct request_queue *q, struct request *rq) +static void blk_add_trace_rq_abort(void *ignore, + struct request_queue *q, struct request *rq) { blk_add_trace_rq(q, rq, BLK_TA_ABORT); } -static void blk_add_trace_rq_insert(struct request_queue *q, struct request *rq) +static void blk_add_trace_rq_insert(void *ignore, + struct request_queue *q, struct request *rq) { blk_add_trace_rq(q, rq, BLK_TA_INSERT); } -static void blk_add_trace_rq_issue(struct request_queue *q, struct request *rq) +static void blk_add_trace_rq_issue(void *ignore, + struct request_queue *q, struct request *rq) { blk_add_trace_rq(q, rq, BLK_TA_ISSUE); } -static void blk_add_trace_rq_requeue(struct request_queue *q, +static void blk_add_trace_rq_requeue(void *ignore, + struct request_queue *q, struct request *rq) { blk_add_trace_rq(q, rq, BLK_TA_REQUEUE); } -static void blk_add_trace_rq_complete(struct request_queue *q, +static void blk_add_trace_rq_complete(void *ignore, + struct request_queue *q, struct request *rq) { blk_add_trace_rq(q, rq, BLK_TA_COMPLETE); @@ -724,34 +729,40 @@ static void blk_add_trace_bio(struct request_queue *q, struct bio *bio, !bio_flagged(bio, BIO_UPTODATE), 0, NULL); } -static void blk_add_trace_bio_bounce(struct request_queue *q, struct bio *bio) +static void blk_add_trace_bio_bounce(void *ignore, + struct request_queue *q, struct bio *bio) { blk_add_trace_bio(q, bio, BLK_TA_BOUNCE); } -static void blk_add_trace_bio_complete(struct request_queue *q, struct bio *bio) +static void blk_add_trace_bio_complete(void *ignore, + struct request_queue *q, struct bio *bio) { blk_add_trace_bio(q, bio, BLK_TA_COMPLETE); } -static void blk_add_trace_bio_backmerge(struct request_queue *q, +static void blk_add_trace_bio_backmerge(void *ignore, + struct request_queue *q, struct bio *bio) { blk_add_trace_bio(q, bio, BLK_TA_BACKMERGE); } -static void blk_add_trace_bio_frontmerge(struct request_queue *q, +static void blk_add_trace_bio_frontmerge(void *ignore, + struct request_queue *q, struct bio *bio) { blk_add_trace_bio(q, bio, BLK_TA_FRONTMERGE); } -static void blk_add_trace_bio_queue(struct request_queue *q, struct bio *bio) +static void blk_add_trace_bio_queue(void *ignore, + struct request_queue *q, struct bio *bio) { blk_add_trace_bio(q, bio, BLK_TA_QUEUE); } -static void blk_add_trace_getrq(struct request_queue *q, +static void blk_add_trace_getrq(void *ignore, + struct request_queue *q, struct bio *bio, int rw) { if (bio) @@ -765,7 +776,8 @@ static void blk_add_trace_getrq(struct request_queue *q, } -static void blk_add_trace_sleeprq(struct request_queue *q, +static void blk_add_trace_sleeprq(void *ignore, + struct request_queue *q, struct bio *bio, int rw) { if (bio) @@ -779,7 +791,7 @@ static void blk_add_trace_sleeprq(struct request_queue *q, } } -static void blk_add_trace_plug(struct request_queue *q) +static void blk_add_trace_plug(void *ignore, struct request_queue *q) { struct blk_trace *bt = q->blk_trace; @@ -787,7 +799,7 @@ static void blk_add_trace_plug(struct request_queue *q) __blk_add_trace(bt, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL); } -static void blk_add_trace_unplug_io(struct request_queue *q) +static void blk_add_trace_unplug_io(void *ignore, struct request_queue *q) { struct blk_trace *bt = q->blk_trace; @@ -800,7 +812,7 @@ static void blk_add_trace_unplug_io(struct request_queue *q) } } -static void blk_add_trace_unplug_timer(struct request_queue *q) +static void blk_add_trace_unplug_timer(void *ignore, struct request_queue *q) { struct blk_trace *bt = q->blk_trace; @@ -813,7 +825,8 @@ static void blk_add_trace_unplug_timer(struct request_queue *q) } } -static void blk_add_trace_split(struct request_queue *q, struct bio *bio, +static void blk_add_trace_split(void *ignore, + struct request_queue *q, struct bio *bio, unsigned int pdu) { struct blk_trace *bt = q->blk_trace; @@ -839,8 +852,9 @@ static void blk_add_trace_split(struct request_queue *q, struct bio *bio, * it spans a stripe (or similar). Add a trace for that action. * **/ -static void blk_add_trace_remap(struct request_queue *q, struct bio *bio, - dev_t dev, sector_t from) +static void blk_add_trace_remap(void *ignore, + struct request_queue *q, struct bio *bio, + dev_t dev, sector_t from) { struct blk_trace *bt = q->blk_trace; struct blk_io_trace_remap r; @@ -869,7 +883,8 @@ static void blk_add_trace_remap(struct request_queue *q, struct bio *bio, * Add a trace for that action. * **/ -static void blk_add_trace_rq_remap(struct request_queue *q, +static void blk_add_trace_rq_remap(void *ignore, + struct request_queue *q, struct request *rq, dev_t dev, sector_t from) { @@ -921,64 +936,64 @@ static void blk_register_tracepoints(void) { int ret; - ret = register_trace_block_rq_abort(blk_add_trace_rq_abort); + ret = register_trace_block_rq_abort(blk_add_trace_rq_abort, NULL); WARN_ON(ret); - ret = register_trace_block_rq_insert(blk_add_trace_rq_insert); + ret = register_trace_block_rq_insert(blk_add_trace_rq_insert, NULL); WARN_ON(ret); - ret = register_trace_block_rq_issue(blk_add_trace_rq_issue); + ret = register_trace_block_rq_issue(blk_add_trace_rq_issue, NULL); WARN_ON(ret); - ret = register_trace_block_rq_requeue(blk_add_trace_rq_requeue); + ret = register_trace_block_rq_requeue(blk_add_trace_rq_requeue, NULL); WARN_ON(ret); - ret = register_trace_block_rq_complete(blk_add_trace_rq_complete); + ret = register_trace_block_rq_complete(blk_add_trace_rq_complete, NULL); WARN_ON(ret); - ret = register_trace_block_bio_bounce(blk_add_trace_bio_bounce); + ret = register_trace_block_bio_bounce(blk_add_trace_bio_bounce, NULL); WARN_ON(ret); - ret = register_trace_block_bio_complete(blk_add_trace_bio_complete); + ret = register_trace_block_bio_complete(blk_add_trace_bio_complete, NULL); WARN_ON(ret); - ret = register_trace_block_bio_backmerge(blk_add_trace_bio_backmerge); + ret = register_trace_block_bio_backmerge(blk_add_trace_bio_backmerge, NULL); WARN_ON(ret); - ret = register_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge); + ret = register_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge, NULL); WARN_ON(ret); - ret = register_trace_block_bio_queue(blk_add_trace_bio_queue); + ret = register_trace_block_bio_queue(blk_add_trace_bio_queue, NULL); WARN_ON(ret); - ret = register_trace_block_getrq(blk_add_trace_getrq); + ret = register_trace_block_getrq(blk_add_trace_getrq, NULL); WARN_ON(ret); - ret = register_trace_block_sleeprq(blk_add_trace_sleeprq); + ret = register_trace_block_sleeprq(blk_add_trace_sleeprq, NULL); WARN_ON(ret); - ret = register_trace_block_plug(blk_add_trace_plug); + ret = register_trace_block_plug(blk_add_trace_plug, NULL); WARN_ON(ret); - ret = register_trace_block_unplug_timer(blk_add_trace_unplug_timer); + ret = register_trace_block_unplug_timer(blk_add_trace_unplug_timer, NULL); WARN_ON(ret); - ret = register_trace_block_unplug_io(blk_add_trace_unplug_io); + ret = register_trace_block_unplug_io(blk_add_trace_unplug_io, NULL); WARN_ON(ret); - ret = register_trace_block_split(blk_add_trace_split); + ret = register_trace_block_split(blk_add_trace_split, NULL); WARN_ON(ret); - ret = register_trace_block_remap(blk_add_trace_remap); + ret = register_trace_block_remap(blk_add_trace_remap, NULL); WARN_ON(ret); - ret = register_trace_block_rq_remap(blk_add_trace_rq_remap); + ret = register_trace_block_rq_remap(blk_add_trace_rq_remap, NULL); WARN_ON(ret); } static void blk_unregister_tracepoints(void) { - unregister_trace_block_rq_remap(blk_add_trace_rq_remap); - unregister_trace_block_remap(blk_add_trace_remap); - unregister_trace_block_split(blk_add_trace_split); - unregister_trace_block_unplug_io(blk_add_trace_unplug_io); - unregister_trace_block_unplug_timer(blk_add_trace_unplug_timer); - unregister_trace_block_plug(blk_add_trace_plug); - unregister_trace_block_sleeprq(blk_add_trace_sleeprq); - unregister_trace_block_getrq(blk_add_trace_getrq); - unregister_trace_block_bio_queue(blk_add_trace_bio_queue); - unregister_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge); - unregister_trace_block_bio_backmerge(blk_add_trace_bio_backmerge); - unregister_trace_block_bio_complete(blk_add_trace_bio_complete); - unregister_trace_block_bio_bounce(blk_add_trace_bio_bounce); - unregister_trace_block_rq_complete(blk_add_trace_rq_complete); - unregister_trace_block_rq_requeue(blk_add_trace_rq_requeue); - unregister_trace_block_rq_issue(blk_add_trace_rq_issue); - unregister_trace_block_rq_insert(blk_add_trace_rq_insert); - unregister_trace_block_rq_abort(blk_add_trace_rq_abort); + unregister_trace_block_rq_remap(blk_add_trace_rq_remap, NULL); + unregister_trace_block_remap(blk_add_trace_remap, NULL); + unregister_trace_block_split(blk_add_trace_split, NULL); + unregister_trace_block_unplug_io(blk_add_trace_unplug_io, NULL); + unregister_trace_block_unplug_timer(blk_add_trace_unplug_timer, NULL); + unregister_trace_block_plug(blk_add_trace_plug, NULL); + unregister_trace_block_sleeprq(blk_add_trace_sleeprq, NULL); + unregister_trace_block_getrq(blk_add_trace_getrq, NULL); + unregister_trace_block_bio_queue(blk_add_trace_bio_queue, NULL); + unregister_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge, NULL); + unregister_trace_block_bio_backmerge(blk_add_trace_bio_backmerge, NULL); + unregister_trace_block_bio_complete(blk_add_trace_bio_complete, NULL); + unregister_trace_block_bio_bounce(blk_add_trace_bio_bounce, NULL); + unregister_trace_block_rq_complete(blk_add_trace_rq_complete, NULL); + unregister_trace_block_rq_requeue(blk_add_trace_rq_requeue, NULL); + unregister_trace_block_rq_issue(blk_add_trace_rq_issue, NULL); + unregister_trace_block_rq_insert(blk_add_trace_rq_insert, NULL); + unregister_trace_block_rq_abort(blk_add_trace_rq_abort, NULL); tracepoint_synchronize_unregister(); } diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 32837e19e3bd..6d2cb14f9449 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -3234,7 +3234,8 @@ free: } static void -ftrace_graph_probe_sched_switch(struct task_struct *prev, struct task_struct *next) +ftrace_graph_probe_sched_switch(void *ignore, + struct task_struct *prev, struct task_struct *next) { unsigned long long timestamp; int index; @@ -3288,7 +3289,7 @@ static int start_graph_tracing(void) } while (ret == -EAGAIN); if (!ret) { - ret = register_trace_sched_switch(ftrace_graph_probe_sched_switch); + ret = register_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL); if (ret) pr_info("ftrace_graph: Couldn't activate tracepoint" " probe to kernel_sched_switch\n"); @@ -3364,7 +3365,7 @@ void unregister_ftrace_graph(void) ftrace_graph_entry = ftrace_graph_entry_stub; ftrace_shutdown(FTRACE_STOP_FUNC_RET); unregister_pm_notifier(&ftrace_suspend_notifier); - unregister_trace_sched_switch(ftrace_graph_probe_sched_switch); + unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL); out: mutex_unlock(&ftrace_lock); diff --git a/kernel/trace/kmemtrace.c b/kernel/trace/kmemtrace.c index a91da69f153a..7253d0c1c32f 100644 --- a/kernel/trace/kmemtrace.c +++ b/kernel/trace/kmemtrace.c @@ -95,7 +95,8 @@ static inline void kmemtrace_free(enum kmemtrace_type_id type_id, trace_wake_up(); } -static void kmemtrace_kmalloc(unsigned long call_site, +static void kmemtrace_kmalloc(void *ignore, + unsigned long call_site, const void *ptr, size_t bytes_req, size_t bytes_alloc, @@ -105,7 +106,8 @@ static void kmemtrace_kmalloc(unsigned long call_site, bytes_req, bytes_alloc, gfp_flags, -1); } -static void kmemtrace_kmem_cache_alloc(unsigned long call_site, +static void kmemtrace_kmem_cache_alloc(void *ignore, + unsigned long call_site, const void *ptr, size_t bytes_req, size_t bytes_alloc, @@ -115,7 +117,8 @@ static void kmemtrace_kmem_cache_alloc(unsigned long call_site, bytes_req, bytes_alloc, gfp_flags, -1); } -static void kmemtrace_kmalloc_node(unsigned long call_site, +static void kmemtrace_kmalloc_node(void *ignore, + unsigned long call_site, const void *ptr, size_t bytes_req, size_t bytes_alloc, @@ -126,7 +129,8 @@ static void kmemtrace_kmalloc_node(unsigned long call_site, bytes_req, bytes_alloc, gfp_flags, node); } -static void kmemtrace_kmem_cache_alloc_node(unsigned long call_site, +static void kmemtrace_kmem_cache_alloc_node(void *ignore, + unsigned long call_site, const void *ptr, size_t bytes_req, size_t bytes_alloc, @@ -137,12 +141,14 @@ static void kmemtrace_kmem_cache_alloc_node(unsigned long call_site, bytes_req, bytes_alloc, gfp_flags, node); } -static void kmemtrace_kfree(unsigned long call_site, const void *ptr) +static void +kmemtrace_kfree(void *ignore, unsigned long call_site, const void *ptr) { kmemtrace_free(KMEMTRACE_TYPE_KMALLOC, call_site, ptr); } -static void kmemtrace_kmem_cache_free(unsigned long call_site, const void *ptr) +static void kmemtrace_kmem_cache_free(void *ignore, + unsigned long call_site, const void *ptr) { kmemtrace_free(KMEMTRACE_TYPE_CACHE, call_site, ptr); } @@ -151,34 +157,34 @@ static int kmemtrace_start_probes(void) { int err; - err = register_trace_kmalloc(kmemtrace_kmalloc); + err = register_trace_kmalloc(kmemtrace_kmalloc, NULL); if (err) return err; - err = register_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc); + err = register_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc, NULL); if (err) return err; - err = register_trace_kmalloc_node(kmemtrace_kmalloc_node); + err = register_trace_kmalloc_node(kmemtrace_kmalloc_node, NULL); if (err) return err; - err = register_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node); + err = register_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node, NULL); if (err) return err; - err = register_trace_kfree(kmemtrace_kfree); + err = register_trace_kfree(kmemtrace_kfree, NULL); if (err) return err; - err = register_trace_kmem_cache_free(kmemtrace_kmem_cache_free); + err = register_trace_kmem_cache_free(kmemtrace_kmem_cache_free, NULL); return err; } static void kmemtrace_stop_probes(void) { - unregister_trace_kmalloc(kmemtrace_kmalloc); - unregister_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc); - unregister_trace_kmalloc_node(kmemtrace_kmalloc_node); - unregister_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node); - unregister_trace_kfree(kmemtrace_kfree); - unregister_trace_kmem_cache_free(kmemtrace_kmem_cache_free); + unregister_trace_kmalloc(kmemtrace_kmalloc, NULL); + unregister_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc, NULL); + unregister_trace_kmalloc_node(kmemtrace_kmalloc_node, NULL); + unregister_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node, NULL); + unregister_trace_kfree(kmemtrace_kfree, NULL); + unregister_trace_kmem_cache_free(kmemtrace_kmem_cache_free, NULL); } static int kmem_trace_init(struct trace_array *tr) diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c index a55fccfede5d..8f758d070c43 100644 --- a/kernel/trace/trace_sched_switch.c +++ b/kernel/trace/trace_sched_switch.c @@ -50,7 +50,7 @@ tracing_sched_switch_trace(struct trace_array *tr, } static void -probe_sched_switch(struct task_struct *prev, struct task_struct *next) +probe_sched_switch(void *ignore, struct task_struct *prev, struct task_struct *next) { struct trace_array_cpu *data; unsigned long flags; @@ -108,7 +108,7 @@ tracing_sched_wakeup_trace(struct trace_array *tr, } static void -probe_sched_wakeup(struct task_struct *wakee, int success) +probe_sched_wakeup(void *ignore, struct task_struct *wakee, int success) { struct trace_array_cpu *data; unsigned long flags; @@ -138,21 +138,21 @@ static int tracing_sched_register(void) { int ret; - ret = register_trace_sched_wakeup(probe_sched_wakeup); + ret = register_trace_sched_wakeup(probe_sched_wakeup, NULL); if (ret) { pr_info("wakeup trace: Couldn't activate tracepoint" " probe to kernel_sched_wakeup\n"); return ret; } - ret = register_trace_sched_wakeup_new(probe_sched_wakeup); + ret = register_trace_sched_wakeup_new(probe_sched_wakeup, NULL); if (ret) { pr_info("wakeup trace: Couldn't activate tracepoint" " probe to kernel_sched_wakeup_new\n"); goto fail_deprobe; } - ret = register_trace_sched_switch(probe_sched_switch); + ret = register_trace_sched_switch(probe_sched_switch, NULL); if (ret) { pr_info("sched trace: Couldn't activate tracepoint" " probe to kernel_sched_switch\n"); @@ -161,17 +161,17 @@ static int tracing_sched_register(void) return ret; fail_deprobe_wake_new: - unregister_trace_sched_wakeup_new(probe_sched_wakeup); + unregister_trace_sched_wakeup_new(probe_sched_wakeup, NULL); fail_deprobe: - unregister_trace_sched_wakeup(probe_sched_wakeup); + unregister_trace_sched_wakeup(probe_sched_wakeup, NULL); return ret; } static void tracing_sched_unregister(void) { - unregister_trace_sched_switch(probe_sched_switch); - unregister_trace_sched_wakeup_new(probe_sched_wakeup); - unregister_trace_sched_wakeup(probe_sched_wakeup); + unregister_trace_sched_switch(probe_sched_switch, NULL); + unregister_trace_sched_wakeup_new(probe_sched_wakeup, NULL); + unregister_trace_sched_wakeup(probe_sched_wakeup, NULL); } static void tracing_start_sched_switch(void) diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c index 8052446ceeaa..0e73bc2ef8c5 100644 --- a/kernel/trace/trace_sched_wakeup.c +++ b/kernel/trace/trace_sched_wakeup.c @@ -98,7 +98,8 @@ static int report_latency(cycle_t delta) return 1; } -static void probe_wakeup_migrate_task(struct task_struct *task, int cpu) +static void +probe_wakeup_migrate_task(void *ignore, struct task_struct *task, int cpu) { if (task != wakeup_task) return; @@ -107,7 +108,8 @@ static void probe_wakeup_migrate_task(struct task_struct *task, int cpu) } static void notrace -probe_wakeup_sched_switch(struct task_struct *prev, struct task_struct *next) +probe_wakeup_sched_switch(void *ignore, + struct task_struct *prev, struct task_struct *next) { struct trace_array_cpu *data; cycle_t T0, T1, delta; @@ -199,7 +201,7 @@ static void wakeup_reset(struct trace_array *tr) } static void -probe_wakeup(struct task_struct *p, int success) +probe_wakeup(void *ignore, struct task_struct *p, int success) { struct trace_array_cpu *data; int cpu = smp_processor_id(); @@ -263,28 +265,28 @@ static void start_wakeup_tracer(struct trace_array *tr) { int ret; - ret = register_trace_sched_wakeup(probe_wakeup); + ret = register_trace_sched_wakeup(probe_wakeup, NULL); if (ret) { pr_info("wakeup trace: Couldn't activate tracepoint" " probe to kernel_sched_wakeup\n"); return; } - ret = register_trace_sched_wakeup_new(probe_wakeup); + ret = register_trace_sched_wakeup_new(probe_wakeup, NULL); if (ret) { pr_info("wakeup trace: Couldn't activate tracepoint" " probe to kernel_sched_wakeup_new\n"); goto fail_deprobe; } - ret = register_trace_sched_switch(probe_wakeup_sched_switch); + ret = register_trace_sched_switch(probe_wakeup_sched_switch, NULL); if (ret) { pr_info("sched trace: Couldn't activate tracepoint" " probe to kernel_sched_switch\n"); goto fail_deprobe_wake_new; } - ret = register_trace_sched_migrate_task(probe_wakeup_migrate_task); + ret = register_trace_sched_migrate_task(probe_wakeup_migrate_task, NULL); if (ret) { pr_info("wakeup trace: Couldn't activate tracepoint" " probe to kernel_sched_migrate_task\n"); @@ -311,19 +313,19 @@ static void start_wakeup_tracer(struct trace_array *tr) return; fail_deprobe_wake_new: - unregister_trace_sched_wakeup_new(probe_wakeup); + unregister_trace_sched_wakeup_new(probe_wakeup, NULL); fail_deprobe: - unregister_trace_sched_wakeup(probe_wakeup); + unregister_trace_sched_wakeup(probe_wakeup, NULL); } static void stop_wakeup_tracer(struct trace_array *tr) { tracer_enabled = 0; unregister_ftrace_function(&trace_ops); - unregister_trace_sched_switch(probe_wakeup_sched_switch); - unregister_trace_sched_wakeup_new(probe_wakeup); - unregister_trace_sched_wakeup(probe_wakeup); - unregister_trace_sched_migrate_task(probe_wakeup_migrate_task); + unregister_trace_sched_switch(probe_wakeup_sched_switch, NULL); + unregister_trace_sched_wakeup_new(probe_wakeup, NULL); + unregister_trace_sched_wakeup(probe_wakeup, NULL); + unregister_trace_sched_migrate_task(probe_wakeup_migrate_task, NULL); } static int __wakeup_tracer_init(struct trace_array *tr) diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index d036a74a64f3..b8d30e7ecd05 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -247,7 +247,7 @@ int syscall_exit_define_fields(struct ftrace_event_call *call) return ret; } -void ftrace_syscall_enter(struct pt_regs *regs, long id) +void ftrace_syscall_enter(void *ignore, struct pt_regs *regs, long id) { struct syscall_trace_enter *entry; struct syscall_metadata *sys_data; @@ -282,7 +282,7 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id) trace_current_buffer_unlock_commit(buffer, event, 0, 0); } -void ftrace_syscall_exit(struct pt_regs *regs, long ret) +void ftrace_syscall_exit(void *ignore, struct pt_regs *regs, long ret) { struct syscall_trace_exit *entry; struct syscall_metadata *sys_data; @@ -324,7 +324,7 @@ int reg_event_syscall_enter(struct ftrace_event_call *call) return -ENOSYS; mutex_lock(&syscall_trace_lock); if (!sys_refcount_enter) - ret = register_trace_sys_enter(ftrace_syscall_enter); + ret = register_trace_sys_enter(ftrace_syscall_enter, NULL); if (!ret) { set_bit(num, enabled_enter_syscalls); sys_refcount_enter++; @@ -344,7 +344,7 @@ void unreg_event_syscall_enter(struct ftrace_event_call *call) sys_refcount_enter--; clear_bit(num, enabled_enter_syscalls); if (!sys_refcount_enter) - unregister_trace_sys_enter(ftrace_syscall_enter); + unregister_trace_sys_enter(ftrace_syscall_enter, NULL); mutex_unlock(&syscall_trace_lock); } @@ -358,7 +358,7 @@ int reg_event_syscall_exit(struct ftrace_event_call *call) return -ENOSYS; mutex_lock(&syscall_trace_lock); if (!sys_refcount_exit) - ret = register_trace_sys_exit(ftrace_syscall_exit); + ret = register_trace_sys_exit(ftrace_syscall_exit, NULL); if (!ret) { set_bit(num, enabled_exit_syscalls); sys_refcount_exit++; @@ -378,7 +378,7 @@ void unreg_event_syscall_exit(struct ftrace_event_call *call) sys_refcount_exit--; clear_bit(num, enabled_exit_syscalls); if (!sys_refcount_exit) - unregister_trace_sys_exit(ftrace_syscall_exit); + unregister_trace_sys_exit(ftrace_syscall_exit, NULL); mutex_unlock(&syscall_trace_lock); } @@ -438,7 +438,7 @@ static DECLARE_BITMAP(enabled_perf_exit_syscalls, NR_syscalls); static int sys_perf_refcount_enter; static int sys_perf_refcount_exit; -static void perf_syscall_enter(struct pt_regs *regs, long id) +static void perf_syscall_enter(void *ignore, struct pt_regs *regs, long id) { struct syscall_metadata *sys_data; struct syscall_trace_enter *rec; @@ -484,7 +484,7 @@ int perf_sysenter_enable(struct ftrace_event_call *call) mutex_lock(&syscall_trace_lock); if (!sys_perf_refcount_enter) - ret = register_trace_sys_enter(perf_syscall_enter); + ret = register_trace_sys_enter(perf_syscall_enter, N |