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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-08-06 15:16:59 -0400
committerEric Van Hensbergen <ericvh@gmail.com>2011-10-24 12:13:12 -0400
commit348b59012e5c6402741d067cf6eeeb6271999d06 (patch)
tree38041cac7af6f020fa2756eded6a2d9f31132ffc /include/trace
parentef6b0807e2c986d5f1cb878e1b32a7cf4c32b4c8 (diff)
net/9p: Convert net/9p protocol dumps to tracepoints
This helps in more control over debugging. root@qemu-img-64:~# ls /pass/123 ls: cannot access /pass/123: No such file or directory root@qemu-img-64:~# cat /sys/kernel/debug/tracing/trace # tracer: nop # # TASK-PID CPU# TIMESTAMP FUNCTION # | | | | | ls-1536 [001] 70.928584: 9p_protocol_dump: clnt 18446612132784021504 P9_TWALK(tag = 1) 000: 16 00 00 00 6e 01 00 01 00 00 00 02 00 00 00 01 010: 00 03 00 31 32 33 00 00 00 ff ff ff ff 00 00 00 ls-1536 [001] 70.928587: <stack trace> => trace_9p_protocol_dump => p9pdu_finalize => p9_client_rpc => p9_client_walk => v9fs_vfs_lookup => d_alloc_and_lookup => walk_component => path_lookupat ls-1536 [000] 70.929696: 9p_protocol_dump: clnt 18446612132784021504 P9_RLERROR(tag = 1) 000: 0b 00 00 00 07 01 00 02 00 00 00 4e 03 00 02 00 010: 00 00 00 00 03 00 02 00 00 00 00 00 ff 43 00 00 ls-1536 [000] 70.929697: <stack trace> => trace_9p_protocol_dump => p9_client_rpc => p9_client_walk => v9fs_vfs_lookup => d_alloc_and_lookup => walk_component => path_lookupat => do_path_lookup Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/9p.h176
1 files changed, 176 insertions, 0 deletions
diff --git a/include/trace/events/9p.h b/include/trace/events/9p.h
new file mode 100644
index 000000000000..beeaed8398ec
--- /dev/null
+++ b/include/trace/events/9p.h
@@ -0,0 +1,176 @@
1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM 9p
3
4#if !defined(_TRACE_9P_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_9P_H
6
7#include <linux/tracepoint.h>
8
9#define show_9p_op(type) \
10 __print_symbolic(type, \
11 { P9_TLERROR, "P9_TLERROR" }, \
12 { P9_RLERROR, "P9_RLERROR" }, \
13 { P9_TSTATFS, "P9_TSTATFS" }, \
14 { P9_RSTATFS, "P9_RSTATFS" }, \
15 { P9_TLOPEN, "P9_TLOPEN" }, \
16 { P9_RLOPEN, "P9_RLOPEN" }, \
17 { P9_TLCREATE, "P9_TLCREATE" }, \
18 { P9_RLCREATE, "P9_RLCREATE" }, \
19 { P9_TSYMLINK, "P9_TSYMLINK" }, \
20 { P9_RSYMLINK, "P9_RSYMLINK" }, \
21 { P9_TMKNOD, "P9_TMKNOD" }, \
22 { P9_RMKNOD, "P9_RMKNOD" }, \
23 { P9_TRENAME, "P9_TRENAME" }, \
24 { P9_RRENAME, "P9_RRENAME" }, \
25 { P9_TREADLINK, "P9_TREADLINK" }, \
26 { P9_RREADLINK, "P9_RREADLINK" }, \
27 { P9_TGETATTR, "P9_TGETATTR" }, \
28 { P9_RGETATTR, "P9_RGETATTR" }, \
29 { P9_TSETATTR, "P9_TSETATTR" }, \
30 { P9_RSETATTR, "P9_RSETATTR" }, \
31 { P9_TXATTRWALK, "P9_TXATTRWALK" }, \
32 { P9_RXATTRWALK, "P9_RXATTRWALK" }, \
33 { P9_TXATTRCREATE, "P9_TXATTRCREATE" }, \
34 { P9_RXATTRCREATE, "P9_RXATTRCREATE" }, \
35 { P9_TREADDIR, "P9_TREADDIR" }, \
36 { P9_RREADDIR, "P9_RREADDIR" }, \
37 { P9_TFSYNC, "P9_TFSYNC" }, \
38 { P9_RFSYNC, "P9_RFSYNC" }, \
39 { P9_TLOCK, "P9_TLOCK" }, \
40 { P9_RLOCK, "P9_RLOCK" }, \
41 { P9_TGETLOCK, "P9_TGETLOCK" }, \
42 { P9_RGETLOCK, "P9_RGETLOCK" }, \
43 { P9_TLINK, "P9_TLINK" }, \
44 { P9_RLINK, "P9_RLINK" }, \
45 { P9_TMKDIR, "P9_TMKDIR" }, \
46 { P9_RMKDIR, "P9_RMKDIR" }, \
47 { P9_TRENAMEAT, "P9_TRENAMEAT" }, \
48 { P9_RRENAMEAT, "P9_RRENAMEAT" }, \
49 { P9_TUNLINKAT, "P9_TUNLINKAT" }, \
50 { P9_RUNLINKAT, "P9_RUNLINKAT" }, \
51 { P9_TVERSION, "P9_TVERSION" }, \
52 { P9_RVERSION, "P9_RVERSION" }, \
53 { P9_TAUTH, "P9_TAUTH" }, \
54 { P9_RAUTH, "P9_RAUTH" }, \
55 { P9_TATTACH, "P9_TATTACH" }, \
56 { P9_RATTACH, "P9_RATTACH" }, \
57 { P9_TERROR, "P9_TERROR" }, \
58 { P9_RERROR, "P9_RERROR" }, \
59 { P9_TFLUSH, "P9_TFLUSH" }, \
60 { P9_RFLUSH, "P9_RFLUSH" }, \
61 { P9_TWALK, "P9_TWALK" }, \
62 { P9_RWALK, "P9_RWALK" }, \
63 { P9_TOPEN, "P9_TOPEN" }, \
64 { P9_ROPEN, "P9_ROPEN" }, \
65 { P9_TCREATE, "P9_TCREATE" }, \
66 { P9_RCREATE, "P9_RCREATE" }, \
67 { P9_TREAD, "P9_TREAD" }, \
68 { P9_RREAD, "P9_RREAD" }, \
69 { P9_TWRITE, "P9_TWRITE" }, \
70 { P9_RWRITE, "P9_RWRITE" }, \
71 { P9_TCLUNK, "P9_TCLUNK" }, \
72 { P9_RCLUNK, "P9_RCLUNK" }, \
73 { P9_TREMOVE, "P9_TREMOVE" }, \
74 { P9_RREMOVE, "P9_RREMOVE" }, \
75 { P9_TSTAT, "P9_TSTAT" }, \
76 { P9_RSTAT, "P9_RSTAT" }, \
77 { P9_TWSTAT, "P9_TWSTAT" }, \
78 { P9_RWSTAT, "P9_RWSTAT" })
79
80TRACE_EVENT(9p_client_req,
81 TP_PROTO(struct p9_client *clnt, int8_t type, int tag),
82
83 TP_ARGS(clnt, type, tag),
84
85 TP_STRUCT__entry(
86 __field( void *, clnt )
87 __field( __u8, type )
88 __field( __u32, tag )
89 ),
90
91 TP_fast_assign(
92 __entry->clnt = clnt;
93 __entry->type = type;
94 __entry->tag = tag;
95 ),
96
97 TP_printk("client %lu request %s tag %d",
98 (long)__entry->clnt, show_9p_op(__entry->type),
99 __entry->tag)
100 );
101
102TRACE_EVENT(9p_client_res,
103 TP_PROTO(struct p9_client *clnt, int8_t type, int tag, int err),
104
105 TP_ARGS(clnt, type, tag, err),
106
107 TP_STRUCT__entry(
108 __field( void *, clnt )
109 __field( __u8, type )
110 __field( __u32, tag )
111 __field( __u32, err )
112 ),
113
114 TP_fast_assign(
115 __entry->clnt = clnt;
116 __entry->type = type;
117 __entry->tag = tag;
118 __entry->err = err;
119 ),
120
121 TP_printk("client %lu response %s tag %d err %d",
122 (long)__entry->clnt, show_9p_op(__entry->type),
123 __entry->tag, __entry->err)
124);
125
126/* dump 32 bytes of protocol data */
127#define P9_PROTO_DUMP_SZ 32
128TRACE_EVENT(9p_protocol_dump,
129 TP_PROTO(struct p9_client *clnt, struct p9_fcall *pdu),
130
131 TP_ARGS(clnt, pdu),
132
133 TP_STRUCT__entry(
134 __field( void *, clnt )
135 __field( __u8, type )
136 __field( __u16, tag )
137 __array( unsigned char, line, P9_PROTO_DUMP_SZ )
138 ),
139
140 TP_fast_assign(
141 __entry->clnt = clnt;
142 __entry->type = pdu->id;
143 __entry->tag = pdu->tag;
144 memcpy(__entry->line, pdu->sdata, P9_PROTO_DUMP_SZ);
145 ),
146 TP_printk("clnt %lu %s(tag = %d)\n%.3x: "
147 "%02x %02x %02x %02x %02x %02x %02x %02x "
148 "%02x %02x %02x %02x %02x %02x %02x %02x\n"
149 "%.3x: "
150 "%02x %02x %02x %02x %02x %02x %02x %02x "
151 "%02x %02x %02x %02x %02x %02x %02x %02x\n",
152 (long)__entry->clnt, show_9p_op(__entry->type),
153 __entry->tag, 0,
154 __entry->line[0], __entry->line[1],
155 __entry->line[2], __entry->line[3],
156 __entry->line[4], __entry->line[5],
157 __entry->line[6], __entry->line[7],
158 __entry->line[8], __entry->line[9],
159 __entry->line[10], __entry->line[11],
160 __entry->line[12], __entry->line[13],
161 __entry->line[14], __entry->line[15],
162 16,
163 __entry->line[16], __entry->line[17],
164 __entry->line[18], __entry->line[19],
165 __entry->line[20], __entry->line[21],
166 __entry->line[22], __entry->line[23],
167 __entry->line[24], __entry->line[25],
168 __entry->line[26], __entry->line[27],
169 __entry->line[28], __entry->line[29],
170 __entry->line[30], __entry->line[31])
171 );
172
173#endif /* _TRACE_9P_H */
174
175/* This part must be outside protection */
176#include <trace/define_trace.h>
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-08 18:06:54 -0500