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citadel/poky/meta/recipes-kernel/latencytop/latencytop-0.5/latencytop-fsync.patch

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linux: sysfs: use tracing_on as tracing_enabled is deprecated
tracing_enabled use in the kernel is being deprecated as per commit
6752ab4a9c30 [tracing: Deprecate tracing_enabled for tracing_on] in
the linux mainline kernel. tracing_enabled use will generate a warning
and may no longer function as expected, therefore move to use tracing_on.
Upstream-Status: Pending
Signed-off-by: Dennis Hall <dennis.hall@windriver.com>
Index: latencytop-0.5/fsync.c
===================================================================
--- latencytop-0.5.orig/fsync.c 2012-08-03 10:45:49.000000000 -0400
+++ latencytop-0.5/fsync.c 2012-08-03 10:48:39.000000000 -0400
@@ -149,19 +149,19 @@
* cd /sys/kernel/debug/tracing
* echo fsync > current_tracer
* echo ftrace_printk > iter_ctrl
- * echo 1 > tracing_enabled
+ * echo 1 > tracing_on
*/
ret = system("/bin/mount -t debugfs none /sys/kernel/debug/");
if (!ret)
return -1;
write_to_file("/sys/kernel/debug/tracing/current_tracer", "fsync");
write_to_file("/sys/kernel/debug/tracing/iter_ctrl", "ftrace_printk");
- write_to_file("/sys/kernel/debug/tracing/tracing_enabled", "1");
+ write_to_file("/sys/kernel/debug/tracing/tracing_on", "1");
}
int disable_fsync_tracer(void)
{
- write_to_file("/sys/kernel/debug/tracing/tracing_enabled", "0");
+ write_to_file("/sys/kernel/debug/tracing/tracing_on", "0");
}
@@ -339,8 +339,8 @@
if (curduration > 5)
curduration = 5;
/* clear the ftrace buffer */
- write_to_file("/sys/kernel/debug/tracing/tracing_enabled", "0");
- write_to_file("/sys/kernel/debug/tracing/tracing_enabled", "1");
+ write_to_file("/sys/kernel/debug/tracing/tracing_on", "0");
+ write_to_file("/sys/kernel/debug/tracing/tracing_on", "1");
key = select(1, &rfds, NULL, NULL, &end);
parse_ftrace();
print_global_list();