Change-Id: I361d582f30a04040969f1774064d5d1a4b646389
Signed-off-by: Lianjun Huang <hljhnu@xxxxxxxxx>
---
fs/fuse/dev.c | 4 ++++
include/trace/events/fuse.h | 27 +++++++++++++++++++++++++++
2 files changed, 31 insertions(+)
create mode 100644 include/trace/events/fuse.h
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 9d2d321bd60b..83f20799683d 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -23,6 +23,8 @@
#include <linux/splice.h>
#include <linux/sched.h>
#include <linux/freezer.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/fuse.h>
MODULE_ALIAS_MISCDEV(FUSE_MINOR);
MODULE_ALIAS("devname:fuse");
@@ -323,6 +325,7 @@ static u64 fuse_get_unique(struct fuse_iqueue *fiq)
static void queue_request(struct fuse_iqueue *fiq, struct fuse_req *req)
{
+ trace_fuse_info(req->in.h.opcode, req->in.h.unique, req->in.h.nodeid, "queue request");
req->in.h.len = sizeof(struct fuse_in_header) +
len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
list_add_tail(&req->list, &fiq->pending);
@@ -417,6 +420,7 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
if (req->end)
req->end(fc, req);
put_request:
+ trace_fuse_info(req->in.h.opcode, req->in.h.unique, req->in.h.nodeid, "request end");
fuse_put_request(fc, req);
}
diff --git a/include/trace/events/fuse.h b/include/trace/events/fuse.h
new file mode 100644
index 000000000000..da471c0db9b6
--- /dev/null
+++ b/include/trace/events/fuse.h
@@ -0,0 +1,27 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fuse
+#if !defined(_TRACE_FUSE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FUSE_H
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(fuse_info,
+ TP_PROTO(uint32_t opcode, uint64_t unique, uint64_t nodeid, const char *info),
+ TP_ARGS(opcode, unique, nodeid, info),
+ TP_STRUCT__entry(
+ __field(uint32_t, opcode)
+ __field(uint64_t, unique)
+ __field(uint64_t, nodeid)
+ __string(info, info)
+ ),
+ TP_fast_assign(
+ __entry->opcode = opcode;
+ __entry->unique = unique;
+ __entry->nodeid = nodeid;
+ __assign_str(info, info);
+ ),
+ TP_printk("fuse: opcode %u, unique %lu, nodeid %lu %s\n",
+ __entry->opcode, __entry->unique, __entry->nodeid, __get_str(info))
+ );
+#endif
+
+#include <trace/define_trace.h>
--
2.17.1
