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afs: Better tracing of protocol errors

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Include the site of detection of AFS protocol errors in trace lines to
better be able to determine what went wrong.

Signed-off-by: David Howells <[email protected]>
This commit is contained in:
David Howells 2018-10-20 00:57:56 +01:00
commit 160cb9574b
7 changed files with 146 additions and 70 deletions
Download patch file Download diff file Expand all files Collapse all files

54
include/trace/events/afs.h
View file

@ -84,6 +84,25 @@ enum afs_edit_dir_reason {
afs_edit_dir_for_unlink,
};
enum afs_eproto_cause {
afs_eproto_bad_status,
afs_eproto_cb_count,
afs_eproto_cb_fid_count,
afs_eproto_file_type,
afs_eproto_ibulkst_cb_count,
afs_eproto_ibulkst_count,
afs_eproto_motd_len,
afs_eproto_offline_msg_len,
afs_eproto_volname_len,
afs_eproto_yvl_fsendpt4_len,
afs_eproto_yvl_fsendpt6_len,
afs_eproto_yvl_fsendpt_num,
afs_eproto_yvl_fsendpt_type,
afs_eproto_yvl_vlendpt4_len,
afs_eproto_yvl_vlendpt6_len,
afs_eproto_yvl_vlendpt_type,
};
#endif /* end __AFS_DECLARE_TRACE_ENUMS_ONCE_ONLY */
/*
@ -146,6 +165,24 @@ enum afs_edit_dir_reason {
EM(afs_edit_dir_for_symlink, "Symlnk") \
E_(afs_edit_dir_for_unlink, "Unlink")
#define afs_eproto_causes \
EM(afs_eproto_bad_status, "BadStatus") \
EM(afs_eproto_cb_count, "CbCount") \
EM(afs_eproto_cb_fid_count, "CbFidCount") \
EM(afs_eproto_file_type, "FileTYpe") \
EM(afs_eproto_ibulkst_cb_count, "IBS.CbCount") \
EM(afs_eproto_ibulkst_count, "IBS.FidCount") \
EM(afs_eproto_motd_len, "MotdLen") \
EM(afs_eproto_offline_msg_len, "OfflineMsgLen") \
EM(afs_eproto_volname_len, "VolNameLen") \
EM(afs_eproto_yvl_fsendpt4_len, "YVL.FsEnd4Len") \
EM(afs_eproto_yvl_fsendpt6_len, "YVL.FsEnd6Len") \
EM(afs_eproto_yvl_fsendpt_num, "YVL.FsEndCount") \
EM(afs_eproto_yvl_fsendpt_type, "YVL.FsEndType") \
EM(afs_eproto_yvl_vlendpt4_len, "YVL.VlEnd4Len") \
EM(afs_eproto_yvl_vlendpt6_len, "YVL.VlEnd6Len") \
E_(afs_eproto_yvl_vlendpt_type, "YVL.VlEndType")
/*
* Export enum symbols via userspace.
@ -555,24 +592,25 @@ TRACE_EVENT(afs_edit_dir,
);
TRACE_EVENT(afs_protocol_error,
TP_PROTO(struct afs_call *call, int error, const void *where),
TP_PROTO(struct afs_call *call, int error, enum afs_eproto_cause cause),
TP_ARGS(call, error, where),
TP_ARGS(call, error, cause),
TP_STRUCT__entry(
__field(unsigned int, call )
__field(int, error )
__field(const void *, where )
__field(unsigned int, call )
__field(int, error )
__field(enum afs_eproto_cause, cause )
),
TP_fast_assign(
__entry->call = call ? call->debug_id : 0;
__entry->error = error;
__entry->where = where;
__entry->cause = cause;
),
TP_printk("c=%08x r=%d sp=%pSR",
__entry->call, __entry->error, __entry->where)
TP_printk("c=%08x r=%d %s",
__entry->call, __entry->error,
__print_symbolic(__entry->cause, afs_eproto_causes))
);
TRACE_EVENT(afs_cm_no_server,