6e8b50d16a
Add some new tracepoints in the nfsd read/write codepaths. The idea is that this will give us the ability to measure how long each phase of a read or write operation takes. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* Copyright (c) 2014 Christoph Hellwig.
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM nfsd
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#if !defined(_NFSD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _NFSD_TRACE_H
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#include <linux/tracepoint.h>
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#include "nfsfh.h"
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DECLARE_EVENT_CLASS(nfsd_io_class,
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TP_PROTO(struct svc_rqst *rqstp,
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struct svc_fh *fhp,
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loff_t offset,
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int len),
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TP_ARGS(rqstp, fhp, offset, len),
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TP_STRUCT__entry(
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__field(__be32, xid)
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__field_struct(struct knfsd_fh, fh)
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__field(loff_t, offset)
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__field(int, len)
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),
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TP_fast_assign(
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__entry->xid = rqstp->rq_xid,
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fh_copy_shallow(&__entry->fh, &fhp->fh_handle);
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__entry->offset = offset;
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__entry->len = len;
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),
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TP_printk("xid=0x%x fh=0x%x offset=%lld len=%d",
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__be32_to_cpu(__entry->xid), knfsd_fh_hash(&__entry->fh),
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__entry->offset, __entry->len)
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)
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#define DEFINE_NFSD_IO_EVENT(name) \
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DEFINE_EVENT(nfsd_io_class, name, \
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TP_PROTO(struct svc_rqst *rqstp, \
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struct svc_fh *fhp, \
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loff_t offset, \
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int len), \
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TP_ARGS(rqstp, fhp, offset, len))
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DEFINE_NFSD_IO_EVENT(read_start);
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DEFINE_NFSD_IO_EVENT(read_opened);
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DEFINE_NFSD_IO_EVENT(read_io_done);
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DEFINE_NFSD_IO_EVENT(read_done);
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DEFINE_NFSD_IO_EVENT(write_start);
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DEFINE_NFSD_IO_EVENT(write_opened);
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DEFINE_NFSD_IO_EVENT(write_io_done);
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DEFINE_NFSD_IO_EVENT(write_done);
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#include "state.h"
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DECLARE_EVENT_CLASS(nfsd_stateid_class,
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TP_PROTO(stateid_t *stp),
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TP_ARGS(stp),
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TP_STRUCT__entry(
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__field(u32, cl_boot)
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__field(u32, cl_id)
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__field(u32, si_id)
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__field(u32, si_generation)
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),
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TP_fast_assign(
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__entry->cl_boot = stp->si_opaque.so_clid.cl_boot;
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__entry->cl_id = stp->si_opaque.so_clid.cl_id;
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__entry->si_id = stp->si_opaque.so_id;
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__entry->si_generation = stp->si_generation;
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),
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TP_printk("client %08x:%08x stateid %08x:%08x",
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__entry->cl_boot,
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__entry->cl_id,
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__entry->si_id,
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__entry->si_generation)
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)
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#define DEFINE_STATEID_EVENT(name) \
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DEFINE_EVENT(nfsd_stateid_class, name, \
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TP_PROTO(stateid_t *stp), \
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TP_ARGS(stp))
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DEFINE_STATEID_EVENT(layoutstate_alloc);
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DEFINE_STATEID_EVENT(layoutstate_unhash);
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DEFINE_STATEID_EVENT(layoutstate_free);
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DEFINE_STATEID_EVENT(layout_get_lookup_fail);
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DEFINE_STATEID_EVENT(layout_commit_lookup_fail);
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DEFINE_STATEID_EVENT(layout_return_lookup_fail);
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DEFINE_STATEID_EVENT(layout_recall);
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DEFINE_STATEID_EVENT(layout_recall_done);
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DEFINE_STATEID_EVENT(layout_recall_fail);
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DEFINE_STATEID_EVENT(layout_recall_release);
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#endif /* _NFSD_TRACE_H */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#define TRACE_INCLUDE_FILE trace
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#include <trace/define_trace.h>
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