cregit-Linux how code gets into the kernel

Release 4.12 include/trace/events/9p.h


#undef TRACE_SYSTEM

#define TRACE_SYSTEM 9p

#if !defined(_TRACE_9P_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_9P_H

#include <linux/tracepoint.h>


#define P9_MSG_T							\
		EM( P9_TLERROR,         "P9_TLERROR" )                  \
                EM( P9_RLERROR,         "P9_RLERROR" )                  \
                EM( P9_TSTATFS,         "P9_TSTATFS" )                  \
                EM( P9_RSTATFS,         "P9_RSTATFS" )                  \
                EM( P9_TLOPEN,          "P9_TLOPEN" )                   \
                EM( P9_RLOPEN,          "P9_RLOPEN" )                   \
                EM( P9_TLCREATE,        "P9_TLCREATE" )                 \
                EM( P9_RLCREATE,        "P9_RLCREATE" )                 \
                EM( P9_TSYMLINK,        "P9_TSYMLINK" )                 \
                EM( P9_RSYMLINK,        "P9_RSYMLINK" )                 \
                EM( P9_TMKNOD,          "P9_TMKNOD" )                   \
                EM( P9_RMKNOD,          "P9_RMKNOD" )                   \
                EM( P9_TRENAME,         "P9_TRENAME" )                  \
                EM( P9_RRENAME,         "P9_RRENAME" )                  \
                EM( P9_TREADLINK,       "P9_TREADLINK" )                \
                EM( P9_RREADLINK,       "P9_RREADLINK" )                \
                EM( P9_TGETATTR,        "P9_TGETATTR" )                 \
                EM( P9_RGETATTR,        "P9_RGETATTR" )                 \
                EM( P9_TSETATTR,        "P9_TSETATTR" )                 \
                EM( P9_RSETATTR,        "P9_RSETATTR" )                 \
                EM( P9_TXATTRWALK,      "P9_TXATTRWALK" )               \
                EM( P9_RXATTRWALK,      "P9_RXATTRWALK" )               \
                EM( P9_TXATTRCREATE,    "P9_TXATTRCREATE" )             \
                EM( P9_RXATTRCREATE,    "P9_RXATTRCREATE" )             \
                EM( P9_TREADDIR,        "P9_TREADDIR" )                 \
                EM( P9_RREADDIR,        "P9_RREADDIR" )                 \
                EM( P9_TFSYNC,          "P9_TFSYNC" )                   \
                EM( P9_RFSYNC,          "P9_RFSYNC" )                   \
                EM( P9_TLOCK,           "P9_TLOCK" )                    \
                EM( P9_RLOCK,           "P9_RLOCK" )                    \
                EM( P9_TGETLOCK,        "P9_TGETLOCK" )                 \
                EM( P9_RGETLOCK,        "P9_RGETLOCK" )                 \
                EM( P9_TLINK,           "P9_TLINK" )                    \
                EM( P9_RLINK,           "P9_RLINK" )                    \
                EM( P9_TMKDIR,          "P9_TMKDIR" )                   \
                EM( P9_RMKDIR,          "P9_RMKDIR" )                   \
                EM( P9_TRENAMEAT,       "P9_TRENAMEAT" )                \
                EM( P9_RRENAMEAT,       "P9_RRENAMEAT" )                \
                EM( P9_TUNLINKAT,       "P9_TUNLINKAT" )                \
                EM( P9_RUNLINKAT,       "P9_RUNLINKAT" )                \
                EM( P9_TVERSION,        "P9_TVERSION" )                 \
                EM( P9_RVERSION,        "P9_RVERSION" )                 \
                EM( P9_TAUTH,           "P9_TAUTH" )                    \
                EM( P9_RAUTH,           "P9_RAUTH" )                    \
                EM( P9_TATTACH,         "P9_TATTACH" )                  \
                EM( P9_RATTACH,         "P9_RATTACH" )                  \
                EM( P9_TERROR,          "P9_TERROR" )                   \
                EM( P9_RERROR,          "P9_RERROR" )                   \
                EM( P9_TFLUSH,          "P9_TFLUSH" )                   \
                EM( P9_RFLUSH,          "P9_RFLUSH" )                   \
                EM( P9_TWALK,           "P9_TWALK" )                    \
                EM( P9_RWALK,           "P9_RWALK" )                    \
                EM( P9_TOPEN,           "P9_TOPEN" )                    \
                EM( P9_ROPEN,           "P9_ROPEN" )                    \
                EM( P9_TCREATE,         "P9_TCREATE" )                  \
                EM( P9_RCREATE,         "P9_RCREATE" )                  \
                EM( P9_TREAD,           "P9_TREAD" )                    \
                EM( P9_RREAD,           "P9_RREAD" )                    \
                EM( P9_TWRITE,          "P9_TWRITE" )                   \
                EM( P9_RWRITE,          "P9_RWRITE" )                   \
                EM( P9_TCLUNK,          "P9_TCLUNK" )                   \
                EM( P9_RCLUNK,          "P9_RCLUNK" )                   \
                EM( P9_TREMOVE,         "P9_TREMOVE" )                  \
                EM( P9_RREMOVE,         "P9_RREMOVE" )                  \
                EM( P9_TSTAT,           "P9_TSTAT" )                    \
                EM( P9_RSTAT,           "P9_RSTAT" )                    \
                EM( P9_TWSTAT,          "P9_TWSTAT" )                   \
                EMe(P9_RWSTAT,          "P9_RWSTAT" )

/* Define EM() to export the enums to userspace via TRACE_DEFINE_ENUM() */

#undef EM

#undef EMe

#define EM(a, b)	TRACE_DEFINE_ENUM(a);

#define EMe(a, b)	TRACE_DEFINE_ENUM(a);

P9_MSG_T

/*
 * Now redefine the EM() and EMe() macros to map the enums to the strings
 * that will be printed in the output.
 */

#undef EM

#undef EMe

#define EM(a, b)	{ a, b },

#define EMe(a, b)	{ a, b }


#define show_9p_op(type)						\
	__print_symbolic(type, P9_MSG_T)

TRACE_EVENT(9p_client_req,
	    TP_PROTO(struct p9_client *clnt, int8_t type, int tag),

	    TP_ARGS(clnt, type, tag),

	    TP_STRUCT__entry(
		    __field(    void *,		clnt			     )
		    __field(	__u8,		type			     )
		    __field(	__u32,		tag			     )
		    ),

	    TP_fast_assign(
		    __entry->clnt    =  clnt;
                    __entry->type    =  type;
                    __entry->tag     =  tag;
		    ),

	    TP_printk("client %lu request %s tag  %d",
		    (long)__entry->clnt, show_9p_op(__entry->type),
		    __entry->tag)
 );

TRACE_EVENT(9p_client_res,
	    TP_PROTO(struct p9_client *clnt, int8_t type, int tag, int err),

	    TP_ARGS(clnt, type, tag, err),

	    TP_STRUCT__entry(
                    __field(    void *,         clnt                         )
                    __field(    __u8,           type                         )
                    __field(    __u32,          tag                          )
                    __field(    __u32,          err                          )
                    ),

	    TP_fast_assign(
                    __entry->clnt    =  clnt;
                    __entry->type    =  type;
                    __entry->tag     =  tag;
                    __entry->err     =  err;
                    ),

	    TP_printk("client %lu response %s tag  %d err %d",
                      (long)__entry->clnt, show_9p_op(__entry->type),
                      __entry->tag, __entry->err)
);

/* dump 32 bytes of protocol data */

#define P9_PROTO_DUMP_SZ 32
TRACE_EVENT(9p_protocol_dump,
	    TP_PROTO(struct p9_client *clnt, struct p9_fcall *pdu),

	    TP_ARGS(clnt, pdu),

	    TP_STRUCT__entry(
                    __field(    void *,         clnt                            )
                    __field(    __u8,           type                            )
                    __field(    __u16,          tag                             )
                    __array(    unsigned char,  line,   P9_PROTO_DUMP_SZ        )
                    ),

	    TP_fast_assign(
                    __entry->clnt   =  clnt;
                    __entry->type   =  pdu->id;
                    __entry->tag    =  pdu->tag;
                    memcpy(__entry->line, pdu->sdata, P9_PROTO_DUMP_SZ);
                    ),
	    TP_printk("clnt %lu %s(tag = %d)\n%.3x: %16ph\n%.3x: %16ph\n",
                      (unsigned long)__entry->clnt, show_9p_op(__entry->type),
                      __entry->tag, 0, __entry->line, 16, __entry->line + 16)
 );

#endif /* _TRACE_9P_H */

/* This part must be outside protection */
#include <trace/define_trace.h>

Overall Contributors

PersonTokensPropCommitsCommitProp
Steven Rostedt12056.07%133.33%
Aneesh Kumar K.V8941.59%133.33%
Andy Shevchenko52.34%133.33%
Total214100.00%3100.00%
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