From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 20 Mar 2009 09:14:53 +0000 (+0100)
Subject: Merge branches 'tracing/ftrace', 'tracing/kprobes', 'tracing/tasks' and 'linus' into... 
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=22de89b371a18086162eacd9f8c960299334ab01;p=linux-2.6-omap-h63xx.git

Merge branches 'tracing/ftrace', 'tracing/kprobes', 'tracing/tasks' and 'linus' into tracing/core
---

22de89b371a18086162eacd9f8c960299334ab01
diff --cc kernel/trace/trace.c
index a2d13e8c8fd,1ce6208fd72,305c562dae2,17bb88d86ac..c95b7292be7
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@@@@ -313,9 -306,8 -306,8 -287,6 +313,9 @@@@@ static const char *trace_options[] = 
    	"userstacktrace",
    	"sym-userobj",
    	"printk-msg-only",
   +	"context-info",
   +	"latency-format",
 +++	"global-clock",
    	NULL
    };
    
@@@@@ -775,37 -767,37 -774,37 -824,33 +782,37 @@@@@ static void trace_save_cmdline(struct t
    
    	memcpy(&saved_cmdlines[idx], tsk->comm, TASK_COMM_LEN);
    
   -	spin_unlock(&trace_cmdline_lock);
   +	__raw_spin_unlock(&trace_cmdline_lock);
    }
    
   -char *trace_find_cmdline(int pid)
   +void trace_find_cmdline(int pid, char comm[])
    {
   -	char *cmdline = "<...>";
    	unsigned map;
    
   -	if (!pid)
   -		return "<idle>";
   +	if (!pid) {
   +		strcpy(comm, "<idle>");
   +		return;
   +	}
    
   -	if (pid > PID_MAX_DEFAULT)
   -		goto out;
   +	if (pid > PID_MAX_DEFAULT) {
   +		strcpy(comm, "<...>");
   +		return;
   +	}
    
   +	__raw_spin_lock(&trace_cmdline_lock);
    	map = map_pid_to_cmdline[pid];
-- -	if (map >= SAVED_CMDLINES)
-- -		goto out;
-- -
--  	strcpy(comm, saved_cmdlines[map]);
   -	cmdline = saved_cmdlines[map];
++ +	if (map != NO_CMDLINE_MAP)
++ +		strcpy(comm, saved_cmdlines[map]);
++ +	else
++ +		strcpy(comm, "<...>");
    
-- - out:
   -	return cmdline;
   +	__raw_spin_unlock(&trace_cmdline_lock);
    }
    
    void tracing_record_cmdline(struct task_struct *tsk)
    {
--  	if (atomic_read(&trace_record_cmdline_disabled) || !tracing_is_on())
   -	if (atomic_read(&trace_record_cmdline_disabled))
++ +	if (atomic_read(&trace_record_cmdline_disabled) || !tracer_enabled ||
++ +	    !tracing_is_on())
    		return;
    
    	trace_save_cmdline(tsk);