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fs: dlm: add plock dev tracepoints

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I currently debug nfs plock handling and introduce those two tracepoints
for getting more information about what is happening there if the user
space reads plock operations from kernel and writing the result back.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring
2023-08-01 14:09:42 -04:00
committed by David Teigland
parent 67b5da9a40
commit 8c95006d55
2 changed files with 57 additions and 0 deletions
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51
include/trace/events/dlm.h
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@@ -7,6 +7,7 @@
#include <linux/dlm.h>
#include <linux/dlmconstants.h>
#include <uapi/linux/dlm_plock.h>
#include <linux/tracepoint.h>
#include "../../../fs/dlm/dlm_internal.h"
@@ -585,6 +586,56 @@ TRACE_EVENT(dlm_recv_message,
);
DECLARE_EVENT_CLASS(dlm_plock_template,
TP_PROTO(const struct dlm_plock_info *info),
TP_ARGS(info),
TP_STRUCT__entry(
__field(uint8_t, optype)
__field(uint8_t, ex)
__field(uint8_t, wait)
__field(uint8_t, flags)
__field(uint32_t, pid)
__field(int32_t, nodeid)
__field(int32_t, rv)
__field(uint32_t, fsid)
__field(uint64_t, number)
__field(uint64_t, start)
__field(uint64_t, end)
__field(uint64_t, owner)
),
TP_fast_assign(
__entry->optype = info->optype;
__entry->ex = info->ex;
__entry->wait = info->wait;
__entry->flags = info->flags;
__entry->pid = info->pid;
__entry->nodeid = info->nodeid;
__entry->rv = info->rv;
__entry->fsid = info->fsid;
__entry->number = info->number;
__entry->start = info->start;
__entry->end = info->end;
__entry->owner = info->owner;
),
TP_printk("fsid=%u number=%llx owner=%llx optype=%d ex=%d wait=%d flags=%x pid=%u nodeid=%d rv=%d start=%llx end=%llx",
__entry->fsid, __entry->number, __entry->owner,
__entry->optype, __entry->ex, __entry->wait,
__entry->flags, __entry->pid, __entry->nodeid,
__entry->rv, __entry->start, __entry->end)
);
DEFINE_EVENT(dlm_plock_template, dlm_plock_read,
TP_PROTO(const struct dlm_plock_info *info), TP_ARGS(info));
DEFINE_EVENT(dlm_plock_template, dlm_plock_write,
TP_PROTO(const struct dlm_plock_info *info), TP_ARGS(info));
TRACE_EVENT(dlm_send,
TP_PROTO(int nodeid, int ret),