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afs: Trace afs_server usage

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Add a tracepoint (afs_server) to track the afs_server object usage count.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2019-06-20 18:12:17 +01:00
parent 051d25250b
commit 4521819369
8 changed files with 110 additions and 21 deletions
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63
include/trace/events/afs.h
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@@ -31,6 +31,26 @@ enum afs_call_trace {
afs_call_trace_work,
};
enum afs_server_trace {
afs_server_trace_alloc,
afs_server_trace_callback,
afs_server_trace_destroy,
afs_server_trace_free,
afs_server_trace_gc,
afs_server_trace_get_by_uuid,
afs_server_trace_get_caps,
afs_server_trace_get_install,
afs_server_trace_get_new_cbi,
afs_server_trace_give_up_cb,
afs_server_trace_put_call,
afs_server_trace_put_cbi,
afs_server_trace_put_find_rsq,
afs_server_trace_put_slist,
afs_server_trace_put_slist_isort,
afs_server_trace_put_uuid_rsq,
afs_server_trace_update,
};
enum afs_fs_operation {
afs_FS_FetchData = 130, /* AFS Fetch file data */
afs_FS_FetchACL = 131, /* AFS Fetch file ACL */
@@ -219,6 +239,25 @@ enum afs_cb_break_reason {
EM(afs_call_trace_wake, "WAKE ") \
E_(afs_call_trace_work, "WORK ")
#define afs_server_traces \
EM(afs_server_trace_alloc, "ALLOC ") \
EM(afs_server_trace_callback, "CALLBACK ") \
EM(afs_server_trace_destroy, "DESTROY ") \
EM(afs_server_trace_free, "FREE ") \
EM(afs_server_trace_gc, "GC ") \
EM(afs_server_trace_get_by_uuid, "GET uuid ") \
EM(afs_server_trace_get_caps, "GET caps ") \
EM(afs_server_trace_get_install, "GET inst ") \
EM(afs_server_trace_get_new_cbi, "GET cbi ") \
EM(afs_server_trace_give_up_cb, "giveup-cb") \
EM(afs_server_trace_put_call, "PUT call ") \
EM(afs_server_trace_put_cbi, "PUT cbi ") \
EM(afs_server_trace_put_find_rsq, "PUT f-rsq") \
EM(afs_server_trace_put_slist, "PUT slist") \
EM(afs_server_trace_put_slist_isort, "PUT isort") \
EM(afs_server_trace_put_uuid_rsq, "PUT u-req") \
E_(afs_server_trace_update, "UPDATE")
#define afs_fs_operations \
EM(afs_FS_FetchData, "FS.FetchData") \
EM(afs_FS_FetchStatus, "FS.FetchStatus") \
@@ -404,6 +443,7 @@ enum afs_cb_break_reason {
#define E_(a, b) TRACE_DEFINE_ENUM(a);
afs_call_traces;
afs_server_traces;
afs_fs_operations;
afs_vl_operations;
afs_edit_dir_ops;
@@ -1240,6 +1280,29 @@ TRACE_EVENT(afs_cb_miss,
__print_symbolic(__entry->reason, afs_cb_break_reasons))
);
TRACE_EVENT(afs_server,
TP_PROTO(struct afs_server *server, int usage, enum afs_server_trace reason),
TP_ARGS(server, usage, reason),
TP_STRUCT__entry(
__field(unsigned int, server )
__field(int, usage )
__field(int, reason )
),
TP_fast_assign(
__entry->server = server->debug_id;
__entry->usage = usage;
__entry->reason = reason;
),
TP_printk("s=%08x %s u=%d",
__entry->server,
__print_symbolic(__entry->reason, afs_server_traces),
__entry->usage)
);
#endif /* _TRACE_AFS_H */
/* This part must be outside protection */