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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-06 09:30:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-06 09:30:52 -0700
commit4aed2fd8e3181fea7c09ba79cf64e7e3f4413bf9 (patch)
tree1f69733e5daab4915a76a41de0e4d1dc61e12cfb /include
parent3a3527b6461b1298cc53ce72f336346739297ac8 (diff)
parentfc9ea5a1e53ee54f681e226d735008e2a6f8f470 (diff)
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Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (162 commits) tracing/kprobes: unregister_trace_probe needs to be called under mutex perf: expose event__process function perf events: Fix mmap offset determination perf, powerpc: fsl_emb: Restore setting perf_sample_data.period perf, powerpc: Convert the FSL driver to use local64_t perf tools: Don't keep unreferenced maps when unmaps are detected perf session: Invalidate last_match when removing threads from rb_tree perf session: Free the ref_reloc_sym memory at the right place x86,mmiotrace: Add support for tracing STOS instruction perf, sched migration: Librarize task states and event headers helpers perf, sched migration: Librarize the GUI class perf, sched migration: Make the GUI class client agnostic perf, sched migration: Make it vertically scrollable perf, sched migration: Parameterize cpu height and spacing perf, sched migration: Fix key bindings perf, sched migration: Ignore unhandled task states perf, sched migration: Handle ignored migrate out events perf: New migration tool overview tracing: Drop cpparg() macro perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call ... Fix up trivial conflicts in Makefile and drivers/cpufreq/cpufreq.c
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/local64.h96
-rw-r--r--include/asm-generic/vmlinux.lds.h4
-rw-r--r--include/linux/ftrace.h5
-rw-r--r--include/linux/ftrace_event.h18
-rw-r--r--include/linux/kernel.h5
-rw-r--r--include/linux/kmemtrace.h25
-rw-r--r--include/linux/nmi.h13
-rw-r--r--include/linux/perf_event.h95
-rw-r--r--include/linux/sched.h24
-rw-r--r--include/linux/slab_def.h3
-rw-r--r--include/linux/slub_def.h3
-rw-r--r--include/linux/syscalls.h2
-rw-r--r--include/trace/boot.h60
-rw-r--r--include/trace/events/sched.h32
-rw-r--r--include/trace/events/timer.h80
-rw-r--r--include/trace/ftrace.h23
-rw-r--r--include/trace/syscall.h1
17 files changed, 228 insertions, 261 deletions
diff --git a/include/asm-generic/local64.h b/include/asm-generic/local64.h
new file mode 100644
index 000000000000..02ac760c1a8b
--- /dev/null
+++ b/include/asm-generic/local64.h
@@ -0,0 +1,96 @@
+#ifndef _ASM_GENERIC_LOCAL64_H
+#define _ASM_GENERIC_LOCAL64_H
+
+#include <linux/percpu.h>
+#include <asm/types.h>
+
+/*
+ * A signed long type for operations which are atomic for a single CPU.
+ * Usually used in combination with per-cpu variables.
+ *
+ * This is the default implementation, which uses atomic64_t. Which is
+ * rather pointless. The whole point behind local64_t is that some processors
+ * can perform atomic adds and subtracts in a manner which is atomic wrt IRQs
+ * running on this CPU. local64_t allows exploitation of such capabilities.
+ */
+
+/* Implement in terms of atomics. */
+
+#if BITS_PER_LONG == 64
+
+#include <asm/local.h>
+
+typedef struct {
+ local_t a;
+} local64_t;
+
+#define LOCAL64_INIT(i) { LOCAL_INIT(i) }
+
+#define local64_read(l) local_read(&(l)->a)
+#define local64_set(l,i) local_set((&(l)->a),(i))
+#define local64_inc(l) local_inc(&(l)->a)
+#define local64_dec(l) local_dec(&(l)->a)
+#define local64_add(i,l) local_add((i),(&(l)->a))
+#define local64_sub(i,l) local_sub((i),(&(l)->a))
+
+#define local64_sub_and_test(i, l) local_sub_and_test((i), (&(l)->a))
+#define local64_dec_and_test(l) local_dec_and_test(&(l)->a)
+#define local64_inc_and_test(l) local_inc_and_test(&(l)->a)
+#define local64_add_negative(i, l) local_add_negative((i), (&(l)->a))
+#define local64_add_return(i, l) local_add_return((i), (&(l)->a))
+#define local64_sub_return(i, l) local_sub_return((i), (&(l)->a))
+#define local64_inc_return(l) local_inc_return(&(l)->a)
+
+#define local64_cmpxchg(l, o, n) local_cmpxchg((&(l)->a), (o), (n))
+#define local64_xchg(l, n) local_xchg((&(l)->a), (n))
+#define local64_add_unless(l, _a, u) local_add_unless((&(l)->a), (_a), (u))
+#define local64_inc_not_zero(l) local_inc_not_zero(&(l)->a)
+
+/* Non-atomic variants, ie. preemption disabled and won't be touched
+ * in interrupt, etc. Some archs can optimize this case well. */
+#define __local64_inc(l) local64_set((l), local64_read(l) + 1)
+#define __local64_dec(l) local64_set((l), local64_read(l) - 1)
+#define __local64_add(i,l) local64_set((l), local64_read(l) + (i))
+#define __local64_sub(i,l) local64_set((l), local64_read(l) - (i))
+
+#else /* BITS_PER_LONG != 64 */
+
+#include <asm/atomic.h>
+
+/* Don't use typedef: don't want them to be mixed with atomic_t's. */
+typedef struct {
+ atomic64_t a;
+} local64_t;
+
+#define LOCAL64_INIT(i) { ATOMIC_LONG_INIT(i) }
+
+#define local64_read(l) atomic64_read(&(l)->a)
+#define local64_set(l,i) atomic64_set((&(l)->a),(i))
+#define local64_inc(l) atomic64_inc(&(l)->a)
+#define local64_dec(l) atomic64_dec(&(l)->a)
+#define local64_add(i,l) atomic64_add((i),(&(l)->a))
+#define local64_sub(i,l) atomic64_sub((i),(&(l)->a))
+
+#define local64_sub_and_test(i, l) atomic64_sub_and_test((i), (&(l)->a))
+#define local64_dec_and_test(l) atomic64_dec_and_test(&(l)->a)
+#define local64_inc_and_test(l) atomic64_inc_and_test(&(l)->a)
+#define local64_add_negative(i, l) atomic64_add_negative((i), (&(l)->a))
+#define local64_add_return(i, l) atomic64_add_return((i), (&(l)->a))
+#define local64_sub_return(i, l) atomic64_sub_return((i), (&(l)->a))
+#define local64_inc_return(l) atomic64_inc_return(&(l)->a)
+
+#define local64_cmpxchg(l, o, n) atomic64_cmpxchg((&(l)->a), (o), (n))
+#define local64_xchg(l, n) atomic64_xchg((&(l)->a), (n))
+#define local64_add_unless(l, _a, u) atomic64_add_unless((&(l)->a), (_a), (u))
+#define local64_inc_not_zero(l) atomic64_inc_not_zero(&(l)->a)
+
+/* Non-atomic variants, ie. preemption disabled and won't be touched
+ * in interrupt, etc. Some archs can optimize this case well. */
+#define __local64_inc(l) local64_set((l), local64_read(l) + 1)
+#define __local64_dec(l) local64_set((l), local64_read(l) - 1)
+#define __local64_add(i,l) local64_set((l), local64_read(l) + (i))
+#define __local64_sub(i,l) local64_set((l), local64_read(l) - (i))
+
+#endif /* BITS_PER_LONG != 64 */
+
+#endif /* _ASM_GENERIC_LOCAL64_H */
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 4e7ae6002056..8a92a170fb7d 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -156,10 +156,6 @@
CPU_KEEP(exit.data) \
MEM_KEEP(init.data) \
MEM_KEEP(exit.data) \
- . = ALIGN(8); \
- VMLINUX_SYMBOL(__start___markers) = .; \
- *(__markers) \
- VMLINUX_SYMBOL(__stop___markers) = .; \
. = ALIGN(32); \
VMLINUX_SYMBOL(__start___tracepoints) = .; \
*(__tracepoints) \
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 41e46330d9be..dcd6a7c3a435 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -1,3 +1,8 @@
+/*
+ * Ftrace header. For implementation details beyond the random comments
+ * scattered below, see: Documentation/trace/ftrace-design.txt
+ */
+
#ifndef _LINUX_FTRACE_H
#define _LINUX_FTRACE_H
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 3167f2df4126..02b8b24f8f51 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -11,8 +11,6 @@ struct trace_array;
struct tracer;
struct dentry;
-DECLARE_PER_CPU(struct trace_seq, ftrace_event_seq);
-
struct trace_print_flags {
unsigned long mask;
const char *name;
@@ -58,6 +56,9 @@ struct trace_iterator {
struct ring_buffer_iter *buffer_iter[NR_CPUS];
unsigned long iter_flags;
+ /* trace_seq for __print_flags() and __print_symbolic() etc. */
+ struct trace_seq tmp_seq;
+
/* The below is zeroed out in pipe_read */
struct trace_seq seq;
struct trace_entry *ent;
@@ -146,14 +147,19 @@ struct ftrace_event_class {
int (*raw_init)(struct ftrace_event_call *);
};
+extern int ftrace_event_reg(struct ftrace_event_call *event,
+ enum trace_reg type);
+
enum {
TRACE_EVENT_FL_ENABLED_BIT,
TRACE_EVENT_FL_FILTERED_BIT,
+ TRACE_EVENT_FL_RECORDED_CMD_BIT,
};
enum {
- TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT),
- TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
+ TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT),
+ TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
+ TRACE_EVENT_FL_RECORDED_CMD = (1 << TRACE_EVENT_FL_RECORDED_CMD_BIT),
};
struct ftrace_event_call {
@@ -171,6 +177,7 @@ struct ftrace_event_call {
* 32 bit flags:
* bit 1: enabled
* bit 2: filter_active
+ * bit 3: enabled cmd record
*
* Changes to flags must hold the event_mutex.
*
@@ -257,8 +264,7 @@ static inline void
perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr,
u64 count, struct pt_regs *regs, void *head)
{
- perf_tp_event(addr, count, raw_data, size, regs, head);
- perf_swevent_put_recursion_context(rctx);
+ perf_tp_event(addr, count, raw_data, size, regs, head, rctx);
}
#endif
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 5de838b0fc1a..38e462e00594 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -513,9 +513,6 @@ extern void tracing_start(void);
extern void tracing_stop(void);
extern void ftrace_off_permanent(void);
-extern void
-ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3);
-
static inline void __attribute__ ((format (printf, 1, 2)))
____trace_printk_check_format(const char *fmt, ...)
{
@@ -591,8 +588,6 @@ __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap);
extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode);
#else
-static inline void
-ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { }
static inline int
trace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
diff --git a/include/linux/kmemtrace.h b/include/linux/kmemtrace.h
deleted file mode 100644
index b616d3930c3b..000000000000
--- a/include/linux/kmemtrace.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2008 Eduard - Gabriel Munteanu
- *
- * This file is released under GPL version 2.
- */
-
-#ifndef _LINUX_KMEMTRACE_H
-#define _LINUX_KMEMTRACE_H
-
-#ifdef __KERNEL__
-
-#include <trace/events/kmem.h>
-
-#ifdef CONFIG_KMEMTRACE
-extern void kmemtrace_init(void);
-#else
-static inline void kmemtrace_init(void)
-{
-}
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_KMEMTRACE_H */
-
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index b752e807adde..06aab5eee134 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -20,10 +20,14 @@ extern void touch_nmi_watchdog(void);
extern void acpi_nmi_disable(void);
extern void acpi_nmi_enable(void);
#else
+#ifndef CONFIG_HARDLOCKUP_DETECTOR
static inline void touch_nmi_watchdog(void)
{
touch_softlockup_watchdog();
}
+#else
+extern void touch_nmi_watchdog(void);
+#endif
static inline void acpi_nmi_disable(void) { }
static inline void acpi_nmi_enable(void) { }
#endif
@@ -47,4 +51,13 @@ static inline bool trigger_all_cpu_backtrace(void)
}
#endif
+#ifdef CONFIG_LOCKUP_DETECTOR
+int hw_nmi_is_cpu_stuck(struct pt_regs *);
+u64 hw_nmi_get_sample_period(void);
+extern int watchdog_enabled;
+struct ctl_table;
+extern int proc_dowatchdog_enabled(struct ctl_table *, int ,
+ void __user *, size_t *, loff_t *);
+#endif
+
#endif
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 5d0266d94985..937495c25073 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -214,8 +214,9 @@ struct perf_event_attr {
* See also PERF_RECORD_MISC_EXACT_IP
*/
precise_ip : 2, /* skid constraint */
+ mmap_data : 1, /* non-exec mmap data */
- __reserved_1 : 47;
+ __reserved_1 : 46;
union {
__u32 wakeup_events; /* wakeup every n events */
@@ -461,6 +462,7 @@ enum perf_callchain_context {
#ifdef CONFIG_PERF_EVENTS
# include <asm/perf_event.h>
+# include <asm/local64.h>
#endif
struct perf_guest_info_callbacks {
@@ -531,14 +533,16 @@ struct hw_perf_event {
struct hrtimer hrtimer;
};
#ifdef CONFIG_HAVE_HW_BREAKPOINT
- /* breakpoint */
- struct arch_hw_breakpoint info;
+ struct { /* breakpoint */
+ struct arch_hw_breakpoint info;
+ struct list_head bp_list;
+ };
#endif
};
- atomic64_t prev_count;
+ local64_t prev_count;
u64 sample_period;
u64 last_period;
- atomic64_t period_left;
+ local64_t period_left;
u64 interrupts;
u64 freq_time_stamp;
@@ -548,7 +552,10 @@ struct hw_perf_event {
struct perf_event;
-#define PERF_EVENT_TXN_STARTED 1
+/*
+ * Common implementation detail of pmu::{start,commit,cancel}_txn
+ */
+#define PERF_EVENT_TXN 0x1
/**
* struct pmu - generic performance monitoring unit
@@ -562,14 +569,28 @@ struct pmu {
void (*unthrottle) (struct perf_event *event);
/*
- * group events scheduling is treated as a transaction,
- * add group events as a whole and perform one schedulability test.
- * If test fails, roll back the whole group
+ * Group events scheduling is treated as a transaction, add group
+ * events as a whole and perform one schedulability test. If the test
+ * fails, roll back the whole group
*/
+ /*
+ * Start the transaction, after this ->enable() doesn't need
+ * to do schedulability tests.
+ */
void (*start_txn) (const struct pmu *pmu);
- void (*cancel_txn) (const struct pmu *pmu);
+ /*
+ * If ->start_txn() disabled the ->enable() schedulability test
+ * then ->commit_txn() is required to perform one. On success
+ * the transaction is closed. On error the transaction is kept
+ * open until ->cancel_txn() is called.
+ */
int (*commit_txn) (const struct pmu *pmu);
+ /*
+ * Will cancel the transaction, assumes ->disable() is called for
+ * each successfull ->enable() during the transaction.
+ */
+ void (*cancel_txn) (const struct pmu *pmu);
};
/**
@@ -584,7 +605,9 @@ enum perf_event_active_state {
struct file;
-struct perf_mmap_data {
+#define PERF_BUFFER_WRITABLE 0x01
+
+struct perf_buffer {
atomic_t refcount;
struct rcu_head rcu_head;
#ifdef CONFIG_PERF_USE_VMALLOC
@@ -650,7 +673,8 @@ struct perf_event {
enum perf_event_active_state state;
unsigned int attach_state;
- atomic64_t count;
+ local64_t count;
+ atomic64_t child_count;
/*
* These are the total time in nanoseconds that the event
@@ -709,7 +733,7 @@ struct perf_event {
atomic_t mmap_count;
int mmap_locked;
struct user_struct *mmap_user;
- struct perf_mmap_data *data;
+ struct perf_buffer *buffer;
/* poll related */
wait_queue_head_t waitq;
@@ -807,7 +831,7 @@ struct perf_cpu_context {
struct perf_output_handle {
struct perf_event *event;
- struct perf_mmap_data *data;
+ struct perf_buffer *buffer;
unsigned long wakeup;
unsigned long size;
void *addr;
@@ -910,8 +934,10 @@ extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
-extern void
-perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
+#ifndef perf_arch_fetch_caller_regs
+static inline void
+perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { }
+#endif
/*
* Take a snapshot of the regs. Skip ip and frame pointer to
@@ -921,31 +947,11 @@ perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
* - bp for callchains
* - eflags, for future purposes, just in case
*/
-static inline void perf_fetch_caller_regs(struct pt_regs *regs, int skip)
+static inline void perf_fetch_caller_regs(struct pt_regs *regs)
{
- unsigned long ip;
-
memset(regs, 0, sizeof(*regs));
- switch (skip) {
- case 1 :
- ip = CALLER_ADDR0;
- break;
- case 2 :
- ip = CALLER_ADDR1;
- break;
- case 3 :
- ip = CALLER_ADDR2;
- break;
- case 4:
- ip = CALLER_ADDR3;
- break;
- /* No need to support further for now */
- default:
- ip = 0;
- }
-
- return perf_arch_fetch_caller_regs(regs, ip, skip);
+ perf_arch_fetch_caller_regs(regs, CALLER_ADDR0);
}
static inline void
@@ -955,21 +961,14 @@ perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
struct pt_regs hot_regs;
if (!regs) {
- perf_fetch_caller_regs(&hot_regs, 1);
+ perf_fetch_caller_regs(&hot_regs);
regs = &hot_regs;
}
__perf_sw_event(event_id, nr, nmi, regs, addr);
}
}
-extern void __perf_event_mmap(struct vm_area_struct *vma);
-
-static inline void perf_event_mmap(struct vm_area_struct *vma)
-{
- if (vma->vm_flags & VM_EXEC)
- __perf_event_mmap(vma);
-}
-
+extern void perf_event_mmap(struct vm_area_struct *vma);
extern struct perf_guest_info_callbacks *perf_guest_cbs;
extern int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
extern int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
@@ -1001,7 +1000,7 @@ static inline bool perf_paranoid_kernel(void)
extern void perf_event_init(void);
extern void perf_tp_event(u64 addr, u64 count, void *record,
int entry_size, struct pt_regs *regs,
- struct hlist_head *head);
+ struct hlist_head *head, int rctx);
extern void perf_bp_event(struct perf_event *event, void *data);
#ifndef perf_misc_flags
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 0478888c6899..3992f50de614 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -316,20 +316,16 @@ extern void scheduler_tick(void);
extern void sched_show_task(struct task_struct *p);
-#ifdef CONFIG_DETECT_SOFTLOCKUP
-extern void softlockup_tick(void);
+#ifdef CONFIG_LOCKUP_DETECTOR
extern void touch_softlockup_watchdog(void);
extern void touch_softlockup_watchdog_sync(void);
extern void touch_all_softlockup_watchdogs(void);
-extern int proc_dosoftlockup_thresh(struct ctl_table *table, int write,
- void __user *buffer,
- size_t *lenp, loff_t *ppos);
+extern int proc_dowatchdog_thresh(struct ctl_table *table, int write,
+ void __user *buffer,
+ size_t *lenp, loff_t *ppos);
extern unsigned int softlockup_panic;
extern int softlockup_thresh;
#else
-static inline void softlockup_tick(void)
-{
-}
static inline void touch_softlockup_watchdog(void)
{
}
@@ -2435,18 +2431,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
#endif /* CONFIG_SMP */
-#ifdef CONFIG_TRACING
-extern void
-__trace_special(void *__tr, void *__data,
- unsigned long arg1, unsigned long arg2, unsigned long arg3);
-#else
-static inline void
-__trace_special(void *__tr, void *__data,
- unsigned long arg1, unsigned long arg2, unsigned long arg3)
-{
-}
-#endif
-
extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask);
extern long sched_getaffinity(pid_t pid, struct cpumask *mask);
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 1812dac8c496..1acfa73ce2ac 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -14,7 +14,8 @@
#include <asm/page.h> /* kmalloc_sizes.h needs PAGE_SIZE */
#include <asm/cache.h> /* kmalloc_sizes.h needs L1_CACHE_BYTES */
#include <linux/compiler.h>
-#include <linux/kmemtrace.h>
+
+#include <trace/events/kmem.h>
#ifndef ARCH_KMALLOC_MINALIGN
/*
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 4ba59cfc1f75..6447a723ecb1 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -10,9 +10,10 @@
#include <linux/gfp.h>
#include <linux/workqueue.h>
#include <linux/kobject.h>
-#include <linux/kmemtrace.h>
#include <linux/kmemleak.h>
+#include <trace/events/kmem.h>
+
enum stat_item {
ALLOC_FASTPATH, /* Allocation from cpu slab */
ALLOC_SLOWPATH, /* Allocation by getting a new cpu slab */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 13ebb5413a79..a6bfd1367d2a 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -167,7 +167,6 @@ extern struct trace_event_functions exit_syscall_print_funcs;
.enter_event = &event_enter_##sname, \
.exit_event = &event_exit_##sname, \
.enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
- .exit_fields = LIST_HEAD_INIT(__syscall_meta_##sname.exit_fields), \
};
#define SYSCALL_DEFINE0(sname) \
@@ -182,7 +181,6 @@ extern struct trace_event_functions exit_syscall_print_funcs;
.enter_event = &event_enter__##sname, \
.exit_event = &event_exit__##sname, \
.enter_fields = LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \
- .exit_fields = LIST_HEAD_INIT(__syscall_meta__##sname.exit_fields), \
}; \
asmlinkage long sys_##sname(void)
#else
diff --git a/include/trace/boot.h b/include/trace/boot.h
deleted file mode 100644
index 088ea089e31d..000000000000
--- a/include/trace/boot.h
+++ /dev/null
@@ -1,60 +0,0 @@
-#ifndef _LINUX_TRACE_BOOT_H
-#define _LINUX_TRACE_BOOT_H
-
-#include <linux/module.h>
-#include <linux/kallsyms.h>
-#include <linux/init.h>
-
-/*
- * Structure which defines the trace of an initcall
- * while it is called.
- * You don't have to fill the func field since it is
- * only used internally by the tracer.
- */
-struct boot_trace_call {
- pid_t caller;
- char func[KSYM_SYMBOL_LEN];
-};
-
-/*
- * Structure which defines the trace of an initcall
- * while it returns.
- */
-struct boot_trace_ret {
- char func[KSYM_SYMBOL_LEN];
- int result;
- unsigned long long duration; /* nsecs */
-};
-
-#ifdef CONFIG_BOOT_TRACER
-/* Append the traces on the ring-buffer */
-extern void trace_boot_call(struct boot_trace_call *bt, initcall_t fn);
-extern void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn);
-
-/* Tells the tracer that smp_pre_initcall is finished.
- * So we can start the tracing
- */
-extern void start_boot_trace(void);
-
-/* Resume the tracing of other necessary events
- * such as sched switches
- */
-extern void enable_boot_trace(void);
-
-/* Suspend this tracing. Actually, only sched_switches tracing have
- * to be suspended. Initcalls doesn't need it.)
- */
-extern void disable_boot_trace(void);
-#else
-static inline
-void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) { }
-
-static inline
-void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn) { }
-
-static inline void start_boot_trace(void) { }
-static inline void enable_boot_trace(void) { }
-static inline void disable_boot_trace(void) { }
-#endif /* CONFIG_BOOT_TRACER */
-
-#endif /* __LINUX_TRACE_BOOT_H */
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index b9e1dd6c6208..9208c92aeab5 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -50,31 +50,6 @@ TRACE_EVENT(sched_kthread_stop_ret,
);
/*
- * Tracepoint for waiting on task to unschedule:
- */
-TRACE_EVENT(sched_wait_task,
-
- TP_PROTO(struct task_struct *p),
-
- TP_ARGS(p),
-
- TP_STRUCT__entry(
- __array( char, comm, TASK_COMM_LEN )
- __field( pid_t, pid )
- __field( int, prio )
- ),
-
- TP_fast_assign(
- memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
- __entry->pid = p->pid;
- __entry->prio = p->prio;
- ),
-
- TP_printk("comm=%s pid=%d prio=%d",
- __entry->comm, __entry->pid, __entry->prio)
-);
-
-/*
* Tracepoint for waking up a task:
*/
DECLARE_EVENT_CLASS(sched_wakeup_template,
@@ -240,6 +215,13 @@ DEFINE_EVENT(sched_process_template, sched_process_exit,
TP_ARGS(p));
/*
+ * Tracepoint for waiting on task to unschedule:
+ */
+DEFINE_EVENT(sched_process_template, sched_wait_task,
+ TP_PROTO(struct task_struct *p),
+ TP_ARGS(p));
+
+/*
* Tracepoint for a waiting task:
*/
TRACE_EVENT(sched_process_wait,
diff --git a/include/trace/events/timer.h b/include/trace/events/timer.h
index 9496b965d62a..c624126a9c8a 100644
--- a/include/trace/events/timer.h
+++ b/include/trace/events/timer.h
@@ -8,11 +8,7 @@
#include <linux/hrtimer.h>
#include <linux/timer.h>
-/**
- * timer_init - called when the timer is initialized
- * @timer: pointer to struct timer_list
- */
-TRACE_EVENT(timer_init,
+DECLARE_EVENT_CLASS(timer_class,
TP_PROTO(struct timer_list *timer),
@@ -30,6 +26,17 @@ TRACE_EVENT(timer_init,
);
/**
+ * timer_init - called when the timer is initialized
+ * @timer: pointer to struct timer_list
+ */
+DEFINE_EVENT(timer_class, timer_init,
+
+ TP_PROTO(struct timer_list *timer),
+
+ TP_ARGS(timer)
+);
+
+/**
* timer_start - called when the timer is started
* @timer: pointer to struct timer_list
* @expires: the timers expiry time
@@ -94,42 +101,22 @@ TRACE_EVENT(timer_expire_entry,
* NOTE: Do NOT derefernce timer in TP_fast_assign. The pointer might
* be invalid. We solely track the pointer.
*/
-TRACE_EVENT(timer_expire_exit,
+DEFINE_EVENT(timer_class, timer_expire_exit,
TP_PROTO(struct timer_list *timer),
- TP_ARGS(timer),
-
- TP_STRUCT__entry(
- __field(void *, timer )
- ),
-
- TP_fast_assign(
- __entry->timer = timer;
- ),
-
- TP_printk("timer=%p", __entry->timer)
+ TP_ARGS(timer)
);
/**
* timer_cancel - called when the timer is canceled
* @timer: pointer to struct timer_list
*/
-TRACE_EVENT(timer_cancel,
+DEFINE_EVENT(timer_class, timer_cancel,
TP_PROTO(struct timer_list *timer),
- TP_ARGS(timer),
-
- TP_STRUCT__entry(
- __field( void *, timer )
- ),
-
- TP_fast_assign(
- __entry->timer = timer;
- ),
-
- TP_printk("timer=%p", __entry->timer)
+ TP_ARGS(timer)
);
/**
@@ -224,14 +211,7 @@ TRACE_EVENT(hrtimer_expire_entry,
(unsigned long long)ktime_to_ns((ktime_t) { .tv64 = __entry->now }))
);
-/**
- * hrtimer_expire_exit - called immediately after the hrtimer callback returns
- * @timer: pointer to struct hrtimer
- *
- * When used in combination with the hrtimer_expire_entry tracepoint we can
- * determine the runtime of the callback function.
- */
-TRACE_EVENT(hrtimer_expire_exit,
+DECLARE_EVENT_CLASS(hrtimer_class,
TP_PROTO(struct hrtimer *hrtimer),
@@ -249,24 +229,28 @@ TRACE_EVENT(hrtimer_expire_exit,
);
/**
- * hrtimer_cancel - called when the hrtimer is canceled
- * @hrtimer: pointer to struct hrtimer
+ * hrtimer_expire_exit - called immediately after the hrtimer callback returns
+ * @timer: pointer to struct hrtimer
+ *
+ * When used in combination with the hrtimer_expire_entry tracepoint we can
+ * determine the runtime of the callback function.
*/
-TRACE_EVENT(hrtimer_cancel,
+DEFINE_EVENT(hrtimer_class, hrtimer_expire_exit,
TP_PROTO(struct hrtimer *hrtimer),
- TP_ARGS(hrtimer),
+ TP_ARGS(hrtimer)
+);
- TP_STRUCT__entry(
- __field( void *, hrtimer )
- ),
+/**
+ * hrtimer_cancel - called when the hrtimer is canceled
+ * @hrtimer: pointer to struct hrtimer
+ */
+DEFINE_EVENT(hrtimer_class, hrtimer_cancel,
- TP_fast_assign(
- __entry->hrtimer = hrtimer;
- ),
+ TP_PROTO(struct hrtimer *hrtimer),
- TP_printk("hrtimer=%p", __entry->hrtimer)
+ TP_ARGS(hrtimer)
);
/**
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 5a64905d7278..a9377c0083ad 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -75,15 +75,12 @@
#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
-#undef __cpparg
-#define __cpparg(arg...) arg
-
/* Callbacks are meaningless to ftrace. */
#undef TRACE_EVENT_FN
#define TRACE_EVENT_FN(name, proto, args, tstruct, \
assign, print, reg, unreg) \
- TRACE_EVENT(name, __cpparg(proto), __cpparg(args), \
- __cpparg(tstruct), __cpparg(assign), __cpparg(print)) \
+ TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \
+ PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
@@ -145,7 +142,7 @@
* struct trace_seq *s = &iter->seq;
* struct ftrace_raw_<call> *field; <-- defined in stage 1
* struct trace_entry *entry;
- * struct trace_seq *p;
+ * struct trace_seq *p = &iter->tmp_seq;
* int ret;
*
* entry = iter->ent;
@@ -157,12 +154,10 @@
*
* field = (typeof(field))entry;
*
- * p = &get_cpu_var(ftrace_event_seq);
* trace_seq_init(p);
* ret = trace_seq_printf(s, "%s: ", <call>);
* if (ret)
* ret = trace_seq_printf(s, <TP_printk> "\n");
- * put_cpu();
* if (!ret)
* return TRACE_TYPE_PARTIAL_LINE;
*
@@ -216,7 +211,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
struct trace_seq *s = &iter->seq; \
struct ftrace_raw_##call *field; \
struct trace_entry *entry; \
- struct trace_seq *p; \
+ struct trace_seq *p = &iter->tmp_seq; \
int ret; \
\
event = container_of(trace_event, struct ftrace_event_call, \
@@ -231,12 +226,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
\
field = (typeof(field))entry; \
\
- p = &get_cpu_var(ftrace_event_seq); \
trace_seq_init(p); \
ret = trace_seq_printf(s, "%s: ", event->name); \
if (ret) \
ret = trace_seq_printf(s, print); \
- put_cpu(); \
if (!ret) \
return TRACE_TYPE_PARTIAL_LINE; \
\
@@ -255,7 +248,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
struct trace_seq *s = &iter->seq; \
struct ftrace_raw_##template *field; \
struct trace_entry *entry; \
- struct trace_seq *p; \
+ struct trace_seq *p = &iter->tmp_seq; \
int ret; \
\
entry = iter->ent; \
@@ -267,12 +260,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
\
field = (typeof(field))entry; \
\
- p = &get_cpu_var(ftrace_event_seq); \
trace_seq_init(p); \
ret = trace_seq_printf(s, "%s: ", #call); \
if (ret) \
ret = trace_seq_printf(s, print); \
- put_cpu(); \
if (!ret) \
return TRACE_TYPE_PARTIAL_LINE; \
\
@@ -439,6 +430,7 @@ static inline notrace int ftrace_get_offsets_##call( \
* .fields = LIST_HEAD_INIT(event_class_##call.fields),
* .raw_init = trace_event_raw_init,
* .probe = ftrace_raw_event_##call,
+ * .reg = ftrace_event_reg,
* };
*
* static struct ftrace_event_call __used
@@ -567,6 +559,7 @@ static struct ftrace_event_class __used event_class_##call = { \
.fields = LIST_HEAD_INIT(event_class_##call.fields),\
.raw_init = trace_event_raw_init, \
.probe = ftrace_raw_event_##call, \
+ .reg = ftrace_event_reg, \
_TRACE_PERF_INIT(call) \
};
@@ -705,7 +698,7 @@ perf_trace_##call(void *__data, proto) \
int __data_size; \
int rctx; \
\
- perf_fetch_caller_regs(&__regs, 1); \
+ perf_fetch_caller_regs(&__regs); \
\
__data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
__entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 257e08960d7b..31966a4fb8cc 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -26,7 +26,6 @@ struct syscall_metadata {
const char **types;
const char **args;
struct list_head enter_fields;
- struct list_head exit_fields;
struct ftrace_event_call *enter_event;
struct ftrace_event_call *exit_event;