Merge branch 'perf/urgent' into perf/core

Conflicts:
	tools/perf/builtin-record.c
	tools/perf/builtin-top.c
	tools/perf/perf.h
	tools/perf/util/top.h

Merge reason: resolve these cherry-picking conflicts.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 5 insertions, 52 deletions

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index e61ddfe8fe9e..fbc7b1ad929b 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -397,56 +397,6 @@ TRACE_EVENT(sched_stat_runtime,
 			(unsigned long long)__entry->vruntime)
 );
 
-#ifdef CREATE_TRACE_POINTS
-static inline u64 trace_get_sleeptime(struct task_struct *tsk)
-{
-#ifdef CONFIG_SCHEDSTATS
-	u64 block, sleep;
-
-	block = tsk->se.statistics.block_start;
-	sleep = tsk->se.statistics.sleep_start;
-	tsk->se.statistics.block_start = 0;
-	tsk->se.statistics.sleep_start = 0;
-
-	return block ? block : sleep ? sleep : 0;
-#else
-	return 0;
-#endif
-}
-#endif
-
-/*
- * Tracepoint for accounting sleeptime (time the task is sleeping
- * or waiting for I/O).
- */
-TRACE_EVENT(sched_stat_sleeptime,
-
-	TP_PROTO(struct task_struct *tsk, u64 now),
-
-	TP_ARGS(tsk, now),
-
-	TP_STRUCT__entry(
-		__array( char,	comm,	TASK_COMM_LEN	)
-		__field( pid_t,	pid			)
-		__field( u64,	sleeptime		)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
-		__entry->pid		= tsk->pid;
-		__entry->sleeptime = trace_get_sleeptime(tsk);
-		__entry->sleeptime = __entry->sleeptime ?
-				now - __entry->sleeptime : 0;
-	)
-	TP_perf_assign(
-		__perf_count(__entry->sleeptime);
-	),
-
-	TP_printk("comm=%s pid=%d sleeptime=%Lu [ns]",
-			__entry->comm, __entry->pid,
-			(unsigned long long)__entry->sleeptime)
-);
-
 /*
  * Tracepoint for showing priority inheritance modifying a tasks
  * priority.
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 8588a8918023..5973410e8f8c 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -47,7 +47,10 @@ DECLARE_EVENT_CLASS(writeback_work_class,
 		__field(int, reason)
 	),
 	TP_fast_assign(
-		strncpy(__entry->name, dev_name(bdi->dev), 32);
+		struct device *dev = bdi->dev;
+		if (!dev)
+			dev = default_backing_dev_info.dev;
+		strncpy(__entry->name, dev_name(dev), 32);
 		__entry->nr_pages = work->nr_pages;
 		__entry->sb_dev = work->sb ? work->sb->s_dev : 0;
 		__entry->sync_mode = work->sync_mode;
@@ -426,7 +429,7 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template,
 
 	TP_fast_assign(
 		strncpy(__entry->name,
-			dev_name(inode->i_mapping->backing_dev_info->dev), 32);
+			dev_name(inode_to_bdi(inode)->dev), 32);
 		__entry->ino		= inode->i_ino;
 		__entry->state		= inode->i_state;
 		__entry->dirtied_when	= inode->dirtied_when;