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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

Browse source 
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (184 commits)
  perf probe: Clean up probe_point_lazy_walker() return value
  tracing: Fix irqoff selftest expanding max buffer
  tracing: Align 4 byte ints together in struct tracer
  tracing: Export trace_set_clr_event()
  tracing: Explain about unstable clock on resume with ring buffer warning
  ftrace/graph: Trace function entry before updating index
  ftrace: Add .ref.text as one of the safe areas to trace
  tracing: Adjust conditional expression latency formatting.
  tracing: Fix event alignment: skb:kfree_skb
  tracing: Fix event alignment: mce:mce_record
  tracing: Fix event alignment: kvm:kvm_hv_hypercall
  tracing: Fix event alignment: module:module_request
  tracing: Fix event alignment: ftrace:context_switch and ftrace:wakeup
  tracing: Remove lock_depth from event entry
  perf header: Stop using 'self'
  perf session: Use evlist/evsel for managing perf.data attributes
  perf top: Don't let events to eat up whole header line
  perf top: Fix events overflow in top command
  ring-buffer: Remove unused #include <linux/trace_irq.h>
  tracing: Add an 'overwrite' trace_option.
  ...
This commit is contained in:
Linus Torvalds 2011-03-15 18:31:30 -07:00
commit a926021cb1
140 changed files with 9295 additions and 4713 deletions
Download patch file Download diff file Expand all files Collapse all files

4
include/linux/cgroup.h
View file

@ -474,7 +474,8 @@ struct cgroup_subsys {
struct cgroup *old_cgrp, struct task_struct *tsk,
bool threadgroup);
void (*fork)(struct cgroup_subsys *ss, struct task_struct *task);
void (*exit)(struct cgroup_subsys *ss, struct task_struct *task);
void (*exit)(struct cgroup_subsys *ss, struct cgroup *cgrp,
struct cgroup *old_cgrp, struct task_struct *task);
int (*populate)(struct cgroup_subsys *ss,
struct cgroup *cgrp);
void (*post_clone)(struct cgroup_subsys *ss, struct cgroup *cgrp);
@ -626,6 +627,7 @@ bool css_is_ancestor(struct cgroup_subsys_state *cg,
/* Get id and depth of css */
unsigned short css_id(struct cgroup_subsys_state *css);
unsigned short css_depth(struct cgroup_subsys_state *css);
struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id);
#else /* !CONFIG_CGROUPS */

4
include/linux/cgroup_subsys.h
View file

@ -65,4 +65,8 @@ SUBSYS(net_cls)
SUBSYS(blkio)
#endif
#ifdef CONFIG_CGROUP_PERF
SUBSYS(perf)
#endif
/* */

2
include/linux/ftrace.h
View file

@ -428,6 +428,7 @@ extern void unregister_ftrace_graph(void);
extern void ftrace_graph_init_task(struct task_struct *t);
extern void ftrace_graph_exit_task(struct task_struct *t);
extern void ftrace_graph_init_idle_task(struct task_struct *t, int cpu);
static inline int task_curr_ret_stack(struct task_struct *t)
{
@ -451,6 +452,7 @@ static inline void unpause_graph_tracing(void)
static inline void ftrace_graph_init_task(struct task_struct *t) { }
static inline void ftrace_graph_exit_task(struct task_struct *t) { }
static inline void ftrace_graph_init_idle_task(struct task_struct *t, int cpu) { }
static inline int register_ftrace_graph(trace_func_graph_ret_t retfunc,
trace_func_graph_ent_t entryfunc)

2
include/linux/ftrace_event.h
View file

@ -37,7 +37,6 @@ struct trace_entry {
unsigned char flags;
unsigned char preempt_count;
int pid;
int lock_depth;
};
#define FTRACE_MAX_EVENT \
@ -208,7 +207,6 @@ struct ftrace_event_call {
#define PERF_MAX_TRACE_SIZE 2048
#define MAX_FILTER_PRED 32
#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */
extern void destroy_preds(struct ftrace_event_call *call);

50
include/linux/perf_event.h
View file

@ -225,8 +225,14 @@ struct perf_event_attr {
};
__u32 bp_type;
__u64 bp_addr;
__u64 bp_len;
union {
__u64 bp_addr;
__u64 config1; /* extension of config */
};
union {
__u64 bp_len;
__u64 config2; /* extension of config1 */
};
};
/*
@ -464,6 +470,7 @@ enum perf_callchain_context {
#define PERF_FLAG_FD_NO_GROUP (1U << 0)
#define PERF_FLAG_FD_OUTPUT (1U << 1)
#define PERF_FLAG_PID_CGROUP (1U << 2) /* pid=cgroup id, per-cpu mode only */
#ifdef __KERNEL__
/*
@ -471,6 +478,7 @@ enum perf_callchain_context {
*/
#ifdef CONFIG_PERF_EVENTS
# include <linux/cgroup.h>
# include <asm/perf_event.h>
# include <asm/local64.h>
#endif
@ -539,6 +547,9 @@ struct hw_perf_event {
unsigned long event_base;
int idx;
int last_cpu;
unsigned int extra_reg;
u64 extra_config;
int extra_alloc;
};
struct { /* software */
struct hrtimer hrtimer;
@ -716,6 +727,22 @@ struct swevent_hlist {
#define PERF_ATTACH_GROUP 0x02
#define PERF_ATTACH_TASK 0x04
#ifdef CONFIG_CGROUP_PERF
/*
* perf_cgroup_info keeps track of time_enabled for a cgroup.
* This is a per-cpu dynamically allocated data structure.
*/
struct perf_cgroup_info {
u64 time;
u64 timestamp;
};
struct perf_cgroup {
struct cgroup_subsys_state css;
struct perf_cgroup_info *info; /* timing info, one per cpu */
};
#endif
/**
* struct perf_event - performance event kernel representation:
*/
@ -832,6 +859,11 @@ struct perf_event {
struct event_filter *filter;
#endif
#ifdef CONFIG_CGROUP_PERF
struct perf_cgroup *cgrp; /* cgroup event is attach to */
int cgrp_defer_enabled;
#endif
#endif /* CONFIG_PERF_EVENTS */
};
@ -886,6 +918,7 @@ struct perf_event_context {
u64 generation;
int pin_count;
struct rcu_head rcu_head;
int nr_cgroups; /* cgroup events present */
};
/*
@ -905,6 +938,9 @@ struct perf_cpu_context {
struct list_head rotation_list;
int jiffies_interval;
struct pmu *active_pmu;
#ifdef CONFIG_CGROUP_PERF
struct perf_cgroup *cgrp;
#endif
};
struct perf_output_handle {
@ -1040,11 +1076,11 @@ have_event:
__perf_sw_event(event_id, nr, nmi, regs, addr);
}
extern atomic_t perf_task_events;
extern atomic_t perf_sched_events;
static inline void perf_event_task_sched_in(struct task_struct *task)
{
COND_STMT(&perf_task_events, __perf_event_task_sched_in(task));
COND_STMT(&perf_sched_events, __perf_event_task_sched_in(task));
}
static inline
@ -1052,7 +1088,7 @@ void perf_event_task_sched_out(struct task_struct *task, struct task_struct *nex
{
perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 1, NULL, 0);
COND_STMT(&perf_task_events, __perf_event_task_sched_out(task, next));
COND_STMT(&perf_sched_events, __perf_event_task_sched_out(task, next));
}
extern void perf_event_mmap(struct vm_area_struct *vma);
@ -1083,6 +1119,10 @@ extern int sysctl_perf_event_paranoid;
extern int sysctl_perf_event_mlock;
extern int sysctl_perf_event_sample_rate;
extern int perf_proc_update_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
static inline bool perf_paranoid_tracepoint_raw(void)
{
return sysctl_perf_event_paranoid > -1;

2
include/linux/ring_buffer.h
View file

@ -100,6 +100,8 @@ void ring_buffer_free(struct ring_buffer *buffer);
int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size);
void ring_buffer_change_overwrite(struct ring_buffer *buffer, int val);
struct ring_buffer_event *ring_buffer_lock_reserve(struct ring_buffer *buffer,
unsigned long length);
int ring_buffer_unlock_commit(struct ring_buffer *buffer,

7
include/linux/sched.h
View file

@ -2578,13 +2578,6 @@ static inline void inc_syscw(struct task_struct *tsk)
#define TASK_SIZE_OF(tsk) TASK_SIZE
#endif
/*
* Call the function if the target task is executing on a CPU right now:
*/
extern void task_oncpu_function_call(struct task_struct *p,
void (*func) (void *info), void *info);
#ifdef CONFIG_MM_OWNER
extern void mm_update_next_owner(struct mm_struct *mm);
extern void mm_init_owner(struct mm_struct *mm, struct task_struct *p);

10
include/linux/syscalls.h
View file

@ -133,11 +133,11 @@ extern struct trace_event_functions exit_syscall_print_funcs;
.class = &event_class_syscall_enter, \
.event.funcs = &enter_syscall_print_funcs, \
.data = (void *)&__syscall_meta_##sname,\
.flags = TRACE_EVENT_FL_CAP_ANY, \
}; \
static struct ftrace_event_call __used \
__attribute__((section("_ftrace_events"))) \
*__event_enter_##sname = &event_enter_##sname; \
__TRACE_EVENT_FLAGS(enter_##sname, TRACE_EVENT_FL_CAP_ANY)
*__event_enter_##sname = &event_enter_##sname;
#define SYSCALL_TRACE_EXIT_EVENT(sname) \
static struct syscall_metadata __syscall_meta_##sname; \
@ -147,11 +147,11 @@ extern struct trace_event_functions exit_syscall_print_funcs;
.class = &event_class_syscall_exit, \
.event.funcs = &exit_syscall_print_funcs, \
.data = (void *)&__syscall_meta_##sname,\
.flags = TRACE_EVENT_FL_CAP_ANY, \
}; \
static struct ftrace_event_call __used \
__attribute__((section("_ftrace_events"))) \
*__event_exit_##sname = &event_exit_##sname; \
__TRACE_EVENT_FLAGS(exit_##sname, TRACE_EVENT_FL_CAP_ANY)
*__event_exit_##sname = &event_exit_##sname;
#define SYSCALL_METADATA(sname, nb) \
SYSCALL_TRACE_ENTER_EVENT(sname); \
@ -159,6 +159,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
static struct syscall_metadata __used \
__syscall_meta_##sname = { \
.name = "sys"#sname, \
.syscall_nr = -1, /* Filled in at boot */ \
.nb_args = nb, \
.types = types_##sname, \
.args = args_##sname, \
@ -176,6 +177,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
static struct syscall_metadata __used \
__syscall_meta__##sname = { \
.name = "sys_"#sname, \
.syscall_nr = -1, /* Filled in at boot */ \
.nb_args = 0, \
.enter_event = &event_enter__##sname, \
.exit_event = &event_exit__##sname, \