Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

10 files changed, 397 insertions, 29 deletions

diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 84f3001a568..91b91e80567 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -6,6 +6,7 @@
 
 #include <linux/writeback.h>
 #include <linux/tracepoint.h>
+#include <trace/events/gfpflags.h>
 
 struct btrfs_root;
 struct btrfs_fs_info;
@@ -862,6 +863,49 @@ TRACE_EVENT(btrfs_setup_cluster,
 		  __entry->size, __entry->max_size, __entry->bitmap)
 );
 
+struct extent_state;
+TRACE_EVENT(alloc_extent_state,
+
+	TP_PROTO(struct extent_state *state, gfp_t mask, unsigned long IP),
+
+	TP_ARGS(state, mask, IP),
+
+	TP_STRUCT__entry(
+		__field(struct extent_state *, state)
+		__field(gfp_t, mask)
+		__field(unsigned long, ip)
+	),
+
+	TP_fast_assign(
+		__entry->state	= state,
+		__entry->mask	= mask,
+		__entry->ip	= IP
+	),
+
+	TP_printk("state=%p; mask = %s; caller = %pF", __entry->state,
+		  show_gfp_flags(__entry->mask), (void *)__entry->ip)
+);
+
+TRACE_EVENT(free_extent_state,
+
+	TP_PROTO(struct extent_state *state, unsigned long IP),
+
+	TP_ARGS(state, IP),
+
+	TP_STRUCT__entry(
+		__field(struct extent_state *, state)
+		__field(unsigned long, ip)
+	),
+
+	TP_fast_assign(
+		__entry->state	= state,
+		__entry->ip = IP
+	),
+
+	TP_printk(" state=%p; caller = %pF", __entry->state,
+		  (void *)__entry->ip)
+);
+
 #endif /* _TRACE_BTRFS_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index 75964412ddb..127993dbf32 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -81,6 +81,13 @@ DEFINE_EVENT(jbd2_commit, jbd2_commit_logging,
 	TP_ARGS(journal, commit_transaction)
 );
 
+DEFINE_EVENT(jbd2_commit, jbd2_drop_transaction,
+
+	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
+
+	TP_ARGS(journal, commit_transaction)
+);
+
 TRACE_EVENT(jbd2_end_commit,
 	TP_PROTO(journal_t *journal, transaction_t *commit_transaction),
 
@@ -200,7 +207,7 @@ TRACE_EVENT(jbd2_checkpoint_stats,
 		  __entry->forced_to_close, __entry->written, __entry->dropped)
 );
 
-TRACE_EVENT(jbd2_cleanup_journal_tail,
+TRACE_EVENT(jbd2_update_log_tail,
 
 	TP_PROTO(journal_t *journal, tid_t first_tid,
 		 unsigned long block_nr, unsigned long freed),
@@ -229,6 +236,26 @@ TRACE_EVENT(jbd2_cleanup_journal_tail,
 		  __entry->block_nr, __entry->freed)
 );
 
+TRACE_EVENT(jbd2_write_superblock,
+
+	TP_PROTO(journal_t *journal, int write_op),
+
+	TP_ARGS(journal, write_op),
+
+	TP_STRUCT__entry(
+		__field(	dev_t,  dev			)
+		__field(	  int,  write_op		)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= journal->j_fs_dev->bd_dev;
+		__entry->write_op	= write_op;
+	),
+
+	TP_printk("dev %d,%d write_op %x", MAJOR(__entry->dev),
+		  MINOR(__entry->dev), __entry->write_op)
+);
+
 #endif /* _TRACE_JBD2_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 1bcc2a8c00e..cae9a94f025 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -65,7 +65,6 @@ TRACE_EVENT(machine_suspend,
 	TP_printk("state=%lu", (unsigned long)__entry->state)
 );
 
-/* This code will be removed after deprecation time exceeded (2.6.41) */
 #ifdef CONFIG_EVENT_POWER_TRACING_DEPRECATED
 
 /*
@@ -151,6 +150,8 @@ enum {
    events get removed */
 static inline void trace_power_start(u64 type, u64 state, u64 cpuid) {};
 static inline void trace_power_end(u64 cpuid) {};
+static inline void trace_power_start_rcuidle(u64 type, u64 state, u64 cpuid) {};
+static inline void trace_power_end_rcuidle(u64 cpuid) {};
 static inline void trace_power_frequency(u64 type, u64 state, u64 cpuid) {};
 #endif /* _PWR_EVENT_AVOID_DOUBLE_DEFINING_DEPRECATED */
 
diff --git a/include/trace/events/printk.h b/include/trace/events/printk.h
new file mode 100644
index 00000000000..94ec79cc011
--- /dev/null
+++ b/include/trace/events/printk.h
@@ -0,0 +1,41 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM printk
+
+#if !defined(_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_PRINTK_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT_CONDITION(console,
+	TP_PROTO(const char *log_buf, unsigned start, unsigned end,
+		 unsigned log_buf_len),
+
+	TP_ARGS(log_buf, start, end, log_buf_len),
+
+	TP_CONDITION(start != end),
+
+	TP_STRUCT__entry(
+		__dynamic_array(char, msg, end - start + 1)
+	),
+
+	TP_fast_assign(
+		if ((start & (log_buf_len - 1)) > (end & (log_buf_len - 1))) {
+			memcpy(__get_dynamic_array(msg),
+			       log_buf + (start & (log_buf_len - 1)),
+			       log_buf_len - (start & (log_buf_len - 1)));
+			memcpy((char *)__get_dynamic_array(msg) +
+			       log_buf_len - (start & (log_buf_len - 1)),
+			       log_buf, end & (log_buf_len - 1));
+		} else
+			memcpy(__get_dynamic_array(msg),
+			       log_buf + (start & (log_buf_len - 1)),
+			       end - start);
+		((char *)__get_dynamic_array(msg))[end - start] = 0;
+	),
+
+	TP_printk("%s", __get_str(msg))
+);
+#endif /* _TRACE_PRINTK_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index d2d88bed891..337099783f3 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -313,19 +313,22 @@ TRACE_EVENT(rcu_prep_idle,
 /*
  * Tracepoint for the registration of a single RCU callback function.
  * The first argument is the type of RCU, the second argument is
- * a pointer to the RCU callback itself, and the third element is the
- * new RCU callback queue length for the current CPU.
+ * a pointer to the RCU callback itself, the third element is the
+ * number of lazy callbacks queued, and the fourth element is the
+ * total number of callbacks queued.
  */
 TRACE_EVENT(rcu_callback,
 
-	TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen),
+	TP_PROTO(char *rcuname, struct rcu_head *rhp, long qlen_lazy,
+		 long qlen),
 
-	TP_ARGS(rcuname, rhp, qlen),
+	TP_ARGS(rcuname, rhp, qlen_lazy, qlen),
 
 	TP_STRUCT__entry(
 		__field(char *, rcuname)
 		__field(void *, rhp)
 		__field(void *, func)
+		__field(long, qlen_lazy)
 		__field(long, qlen)
 	),
 
@@ -333,11 +336,13 @@ TRACE_EVENT(rcu_callback,
 		__entry->rcuname = rcuname;
 		__entry->rhp = rhp;
 		__entry->func = rhp->func;
+		__entry->qlen_lazy = qlen_lazy;
 		__entry->qlen = qlen;
 	),
 
-	TP_printk("%s rhp=%p func=%pf %ld",
-		  __entry->rcuname, __entry->rhp, __entry->func, __entry->qlen)
+	TP_printk("%s rhp=%p func=%pf %ld/%ld",
+		  __entry->rcuname, __entry->rhp, __entry->func,
+		  __entry->qlen_lazy, __entry->qlen)
 );
 
 /*
@@ -345,20 +350,21 @@ TRACE_EVENT(rcu_callback,
  * kfree() form.  The first argument is the RCU type, the second argument
  * is a pointer to the RCU callback, the third argument is the offset
  * of the callback within the enclosing RCU-protected data structure,
- * and the fourth argument is the new RCU callback queue length for the
- * current CPU.
+ * the fourth argument is the number of lazy callbacks queued, and the
+ * fifth argument is the total number of callbacks queued.
  */
 TRACE_EVENT(rcu_kfree_callback,
 
 	TP_PROTO(char *rcuname, struct rcu_head *rhp, unsigned long offset,
-		 long qlen),
+		 long qlen_lazy, long qlen),
 
-	TP_ARGS(rcuname, rhp, offset, qlen),
+	TP_ARGS(rcuname, rhp, offset, qlen_lazy, qlen),
 
 	TP_STRUCT__entry(
 		__field(char *, rcuname)
 		__field(void *, rhp)
 		__field(unsigned long, offset)
+		__field(long, qlen_lazy)
 		__field(long, qlen)
 	),
 
@@ -366,41 +372,45 @@ TRACE_EVENT(rcu_kfree_callback,
 		__entry->rcuname = rcuname;
 		__entry->rhp = rhp;
 		__entry->offset = offset;
+		__entry->qlen_lazy = qlen_lazy;
 		__entry->qlen = qlen;
 	),
 
-	TP_printk("%s rhp=%p func=%ld %ld",
+	TP_printk("%s rhp=%p func=%ld %ld/%ld",
 		  __entry->rcuname, __entry->rhp, __entry->offset,
-		  __entry->qlen)
+		  __entry->qlen_lazy, __entry->qlen)
 );
 
 /*
  * Tracepoint for marking the beginning rcu_do_batch, performed to start
  * RCU callback invocation.  The first argument is the RCU flavor,
- * the second is the total number of callbacks (including those that
- * are not yet ready to be invoked), and the third argument is the
- * current RCU-callback batch limit.
+ * the second is the number of lazy callbacks queued, the third is
+ * the total number of callbacks queued, and the fourth argument is
+ * the current RCU-callback batch limit.
  */
 TRACE_EVENT(rcu_batch_start,
 
-	TP_PROTO(char *rcuname, long qlen, int blimit),
+	TP_PROTO(char *rcuname, long qlen_lazy, long qlen, int blimit),
 
-	TP_ARGS(rcuname, qlen, blimit),
+	TP_ARGS(rcuname, qlen_lazy, qlen, blimit),
 
 	TP_STRUCT__entry(
 		__field(char *, rcuname)
+		__field(long, qlen_lazy)
 		__field(long, qlen)
 		__field(int, blimit)
 	),
 
 	TP_fast_assign(
 		__entry->rcuname = rcuname;
+		__entry->qlen_lazy = qlen_lazy;
 		__entry->qlen = qlen;
 		__entry->blimit = blimit;
 	),
 
-	TP_printk("%s CBs=%ld bl=%d",
-		  __entry->rcuname, __entry->qlen, __entry->blimit)
+	TP_printk("%s CBs=%ld/%ld bl=%d",
+		  __entry->rcuname, __entry->qlen_lazy, __entry->qlen,
+		  __entry->blimit)
 );
 
 /*
@@ -531,16 +541,21 @@ TRACE_EVENT(rcu_torture_read,
 #else /* #ifdef CONFIG_RCU_TRACE */
 
 #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0)
-#define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, qsmask) do { } while (0)
+#define trace_rcu_grace_period_init(rcuname, gpnum, level, grplo, grphi, \
+				    qsmask) do { } while (0)
 #define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0)
 #define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0)
-#define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks) do { } while (0)
+#define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \
+					 grplo, grphi, gp_tasks) do { } \
+	while (0)
 #define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0)
 #define trace_rcu_dyntick(polarity, oldnesting, newnesting) do { } while (0)
 #define trace_rcu_prep_idle(reason) do { } while (0)
-#define trace_rcu_callback(rcuname, rhp, qlen) do { } while (0)
-#define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen) do { } while (0)
-#define trace_rcu_batch_start(rcuname, qlen, blimit) do { } while (0)
+#define trace_rcu_callback(rcuname, rhp, qlen_lazy, qlen) do { } while (0)
+#define trace_rcu_kfree_callback(rcuname, rhp, offset, qlen_lazy, qlen) \
+	do { } while (0)
+#define trace_rcu_batch_start(rcuname, qlen_lazy, qlen, blimit) \
+	do { } while (0)
 #define trace_rcu_invoke_callback(rcuname, rhp) do { } while (0)
 #define trace_rcu_invoke_kfree_callback(rcuname, rhp, offset) do { } while (0)
 #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \
diff --git a/include/trace/events/regmap.h b/include/trace/events/regmap.h
index 12fbf43524e..41a7dbd570e 100644
--- a/include/trace/events/regmap.h
+++ b/include/trace/events/regmap.h
@@ -4,10 +4,10 @@
 #if !defined(_TRACE_REGMAP_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_REGMAP_H
 
-#include <linux/device.h>
 #include <linux/ktime.h>
 #include <linux/tracepoint.h>
 
+struct device;
 struct regmap;
 
 /*
@@ -139,6 +139,42 @@ TRACE_EVENT(regcache_sync,
 		  __get_str(type), __get_str(status))
 );
 
+DECLARE_EVENT_CLASS(regmap_bool,
+
+	TP_PROTO(struct device *dev, bool flag),
+
+	TP_ARGS(dev, flag),
+
+	TP_STRUCT__entry(
+		__string(	name,		dev_name(dev)	)
+		__field(	int,		flag		)
+	),
+
+	TP_fast_assign(
+		__assign_str(name, dev_name(dev));
+		__entry->flag = flag;
+	),
+
+	TP_printk("%s flag=%d", __get_str(name),
+		  (int)__entry->flag)
+);
+
+DEFINE_EVENT(regmap_bool, regmap_cache_only,
+
+	TP_PROTO(struct device *dev, bool flag),
+
+	TP_ARGS(dev, flag)
+
+);
+
+DEFINE_EVENT(regmap_bool, regmap_cache_bypass,
+
+	TP_PROTO(struct device *dev, bool flag),
+
+	TP_ARGS(dev, flag)
+
+);
+
 #endif /* _TRACE_REGMAP_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/rpm.h b/include/trace/events/rpm.h
index d62c558bf64..33f85b68c22 100644
--- a/include/trace/events/rpm.h
+++ b/include/trace/events/rpm.h
@@ -7,7 +7,8 @@
 
 #include <linux/ktime.h>
 #include <linux/tracepoint.h>
-#include <linux/device.h>
+
+struct device;
 
 /*
  * The rpm_internal events are used for tracing some important
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index e33ed1bfa11..ea7a2035456 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -6,6 +6,7 @@
 
 #include <linux/sched.h>
 #include <linux/tracepoint.h>
+#include <linux/binfmts.h>
 
 /*
  * Tracepoint for calling kthread_stop, performed to end a kthread:
@@ -276,6 +277,32 @@ TRACE_EVENT(sched_process_fork,
 );
 
 /*
+ * Tracepoint for exec:
+ */
+TRACE_EVENT(sched_process_exec,
+
+	TP_PROTO(struct task_struct *p, pid_t old_pid,
+		 struct linux_binprm *bprm),
+
+	TP_ARGS(p, old_pid, bprm),
+
+	TP_STRUCT__entry(
+		__string(	filename,	bprm->filename	)
+		__field(	pid_t,		pid		)
+		__field(	pid_t,		old_pid		)
+	),
+
+	TP_fast_assign(
+		__assign_str(filename, bprm->filename);
+		__entry->pid		= p->pid;
+		__entry->old_pid	= old_pid;
+	),
+
+	TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),
+		  __entry->pid, __entry->old_pid)
+);
+
+/*
  * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
  *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
  */
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
new file mode 100644
index 00000000000..43be87d5dd5
--- /dev/null
+++ b/include/trace/events/sunrpc.h
@@ -0,0 +1,177 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM sunrpc
+
+#if !defined(_TRACE_SUNRPC_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SUNRPC_H
+
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(rpc_task_status,
+
+	TP_PROTO(struct rpc_task *task),
+
+	TP_ARGS(task),
+
+	TP_STRUCT__entry(
+		__field(const struct rpc_task *, task)
+		__field(const struct rpc_clnt *, clnt)
+		__field(int, status)
+	),
+
+	TP_fast_assign(
+		__entry->task = task;
+		__entry->clnt = task->tk_client;
+		__entry->status = task->tk_status;
+	),
+
+	TP_printk("task:%p@%p, status %d",__entry->task, __entry->clnt, __entry->status)
+);
+
+DEFINE_EVENT(rpc_task_status, rpc_call_status,
+	TP_PROTO(struct rpc_task *task),
+
+	TP_ARGS(task)
+);
+
+DEFINE_EVENT(rpc_task_status, rpc_bind_status,
+	TP_PROTO(struct rpc_task *task),
+
+	TP_ARGS(task)
+);
+
+TRACE_EVENT(rpc_connect_status,
+	TP_PROTO(struct rpc_task *task, int status),
+
+	TP_ARGS(task, status),
+
+	TP_STRUCT__entry(
+		__field(const struct rpc_task *, task)
+		__field(const struct rpc_clnt *, clnt)
+		__field(int, status)
+	),
+
+	TP_fast_assign(
+		__entry->task = task;
+		__entry->clnt = task->tk_client;
+		__entry->status = status;
+	),
+
+	TP_printk("task:%p@%p, status %d",__entry->task, __entry->clnt, __entry->status)
+);
+
+DECLARE_EVENT_CLASS(rpc_task_running,
+
+	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+	TP_ARGS(clnt, task, action),
+
+	TP_STRUCT__entry(
+		__field(const struct rpc_clnt *, clnt)
+		__field(const struct rpc_task *, task)
+		__field(const void *, action)
+		__field(unsigned long, runstate)
+		__field(int, status)
+		__field(unsigned short, flags)
+		),
+
+	TP_fast_assign(
+		__entry->clnt = clnt;
+		__entry->task = task;
+		__entry->action = action;
+		__entry->runstate = task->tk_runstate;
+		__entry->status = task->tk_status;
+		__entry->flags = task->tk_flags;
+		),
+
+	TP_printk("task:%p@%p flags=%4.4x state=%4.4lx status=%d action=%pf",
+		__entry->task,
+		__entry->clnt,
+		__entry->flags,
+		__entry->runstate,
+		__entry->status,
+		__entry->action
+		)
+);
+
+DEFINE_EVENT(rpc_task_running, rpc_task_begin,
+
+	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+	TP_ARGS(clnt, task, action)
+
+);
+
+DEFINE_EVENT(rpc_task_running, rpc_task_run_action,
+
+	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+	TP_ARGS(clnt, task, action)
+
+);
+
+DEFINE_EVENT(rpc_task_running, rpc_task_complete,
+
+	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),
+
+	TP_ARGS(clnt, task, action)
+
+);
+
+DECLARE_EVENT_CLASS(rpc_task_queued,
+
+	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),
+
+	TP_ARGS(clnt, task, q),
+
+	TP_STRUCT__entry(
+		__field(const struct rpc_clnt *, clnt)
+		__field(const struct rpc_task *, task)
+		__field(unsigned long, timeout)
+		__field(unsigned long, runstate)
+		__field(int, status)
+		__field(unsigned short, flags)
+		__string(q_name, rpc_qname(q))
+		),
+
+	TP_fast_assign(
+		__entry->clnt = clnt;
+		__entry->task = task;
+		__entry->timeout = task->tk_timeout;
+		__entry->runstate = task->tk_runstate;
+		__entry->status = task->tk_status;
+		__entry->flags = task->tk_flags;
+		__assign_str(q_name, rpc_qname(q));
+		),
+
+	TP_printk("task:%p@%p flags=%4.4x state=%4.4lx status=%d timeout=%lu queue=%s",
+		__entry->task,
+		__entry->clnt,
+		__entry->flags,
+		__entry->runstate,
+		__entry->status,
+		__entry->timeout,
+		__get_str(q_name)
+		)
+);
+
+DEFINE_EVENT(rpc_task_queued, rpc_task_sleep,
+
+	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),
+
+	TP_ARGS(clnt, task, q)
+
+);
+
+DEFINE_EVENT(rpc_task_queued, rpc_task_wakeup,
+
+	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const struct rpc_wait_queue *q),
+
+	TP_ARGS(clnt, task, q)
+
+);
+
+#endif /* _TRACE_SUNRPC_H */
+
+#include <trace/define_trace.h>
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 5973410e8f8..7b81887b023 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -5,7 +5,6 @@
 #define _TRACE_WRITEBACK_H
 
 #include <linux/backing-dev.h>
-#include <linux/device.h>
 #include <linux/writeback.h>
 
 #define show_inode_state(state)					\