Bandwidth related fields were moved by this commit:
commit a88a341a73be4ef035ca26170c849f002797da27
Author: Tejun Heo <t...@kernel.org>
Date: Fri, 22 May 2015 17:13:28 -0400
writeback: move bandwidth related fields from backing_dev_info into
bdi_writeback
Signed-off-by: Michael Jeanson <mjean...@efficios.com>
---
instrumentation/events/lttng-module/writeback.h | 51 +++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/instrumentation/events/lttng-module/writeback.h
b/instrumentation/events/lttng-module/writeback.h
index 7ea3f8a..dc88886 100644
--- a/instrumentation/events/lttng-module/writeback.h
+++ b/instrumentation/events/lttng-module/writeback.h
@@ -523,6 +523,55 @@ LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
#define KBps(x) ((x) << (PAGE_SHIFT - 10))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
+
+LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
+
+ writeback_bdi_dirty_ratelimit,
+
+ TP_PROTO(struct backing_dev_info *bdi,
+ unsigned long dirty_rate,
+ unsigned long task_ratelimit),
+
+ TP_ARGS(bdi, dirty_rate, task_ratelimit),
+
+ TP_STRUCT__entry(
+ __array(char, bdi, 32)
+ __field(unsigned long, write_bw)
+ __field(unsigned long, avg_write_bw)
+ __field(unsigned long, dirty_rate)
+ __field(unsigned long, dirty_ratelimit)
+ __field(unsigned long, task_ratelimit)
+ __field(unsigned long, balanced_dirty_ratelimit)
+ ),
+
+ TP_fast_assign(
+ tp_memcpy(bdi, dev_name(bdi->dev), 32)
+ tp_assign(write_bw, KBps(bdi->wb.write_bandwidth))
+ tp_assign(avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
+ tp_assign(dirty_rate, KBps(dirty_rate))
+ tp_assign(dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
+ tp_assign(task_ratelimit, KBps(task_ratelimit))
+ tp_assign(balanced_dirty_ratelimit,
+ KBps(bdi->wb.balanced_dirty_ratelimit))
+ ),
+
+ TP_printk("bdi %s: "
+ "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
+ "dirty_ratelimit=%lu task_ratelimit=%lu "
+ "balanced_dirty_ratelimit=%lu",
+ __entry->bdi,
+ __entry->write_bw, /* write bandwidth */
+ __entry->avg_write_bw, /* avg write bandwidth */
+ __entry->dirty_rate, /* bdi dirty rate */
+ __entry->dirty_ratelimit, /* base ratelimit */
+ __entry->task_ratelimit, /* ratelimit with position control */
+ __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
+ )
+)
+
+#else
+
LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
writeback_bdi_dirty_ratelimit,
@@ -568,6 +617,8 @@ LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
)
)
+#endif
+
LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
writeback_balance_dirty_pages,
--
1.9.1
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