Quelle  nfs4trace.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2013 Trond Myklebust <Trond.Myklebust@netapp.com>
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM nfs4

#if !defined(_TRACE_NFS4_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_NFS4_H

#include <linux/tracepoint.h>
#include <trace/misc/sunrpc.h>

#include <trace/misc/fs.h>
#include <trace/misc/nfs.h>

#include "delegation.h"

#define show_nfs_fattr_flags(valid) \
 __print_flags((unsigned long)valid, "|", \
  { NFS_ATTR_FATTR_TYPE, "TYPE" }, \
  { NFS_ATTR_FATTR_MODE, "MODE" }, \
  { NFS_ATTR_FATTR_NLINK, "NLINK" }, \
  { NFS_ATTR_FATTR_OWNER, "OWNER" }, \
  { NFS_ATTR_FATTR_GROUP, "GROUP" }, \
  { NFS_ATTR_FATTR_RDEV, "RDEV" }, \
  { NFS_ATTR_FATTR_SIZE, "SIZE" }, \
  { NFS_ATTR_FATTR_FSID, "FSID" }, \
  { NFS_ATTR_FATTR_FILEID, "FILEID" }, \
  { NFS_ATTR_FATTR_ATIME, "ATIME" }, \
  { NFS_ATTR_FATTR_MTIME, "MTIME" }, \
  { NFS_ATTR_FATTR_CTIME, "CTIME" }, \
  { NFS_ATTR_FATTR_CHANGE, "CHANGE" }, \
  { NFS_ATTR_FATTR_OWNER_NAME, "OWNER_NAME" }, \
  { NFS_ATTR_FATTR_GROUP_NAME, "GROUP_NAME" }, \
  { NFS_ATTR_FATTR_BTIME, "BTIME" })

DECLARE_EVENT_CLASS(nfs4_clientid_event,
  TP_PROTO(
   const struct nfs_client *clp,
   int error
  ),

  TP_ARGS(clp, error),

  TP_STRUCT__entry(
   __string(dstaddr, clp->cl_hostname)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   __entry->error = error < 0 ? -error : 0;
   __assign_str(dstaddr);
  ),

  TP_printk(
   "error=%ld (%s) dstaddr=%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   __get_str(dstaddr)
  )
);
#define DEFINE_NFS4_CLIENTID_EVENT(name) \
 DEFINE_EVENT(nfs4_clientid_event, name,  \
   TP_PROTO( \
    const struct nfs_client *clp, \
    int error \
   ), \
   TP_ARGS(clp, error))
DEFINE_NFS4_CLIENTID_EVENT(nfs4_setclientid);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_setclientid_confirm);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_renew);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_renew_async);
#ifdef CONFIG_NFS_V4_1
DEFINE_NFS4_CLIENTID_EVENT(nfs4_exchange_id);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_create_session);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_destroy_session);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_destroy_clientid);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_bind_conn_to_session);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_sequence);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_reclaim_complete);

TRACE_EVENT(nfs4_trunked_exchange_id,
  TP_PROTO(
   const struct nfs_client *clp,
   const char *addr,
   int error
  ),

  TP_ARGS(clp, addr, error),

  TP_STRUCT__entry(
   __string(main_addr, clp->cl_hostname)
   __string(trunk_addr, addr)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   __entry->error = error < 0 ? -error : 0;
   __assign_str(main_addr);
   __assign_str(trunk_addr);
  ),

  TP_printk(
   "error=%ld (%s) main_addr=%s trunk_addr=%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   __get_str(main_addr),
   __get_str(trunk_addr)
  )
);

TRACE_EVENT(nfs4_sequence_done,
  TP_PROTO(
   const struct nfs4_session *session,
   const struct nfs4_sequence_res *res
  ),
  TP_ARGS(session, res),

  TP_STRUCT__entry(
   __field(unsigned int, session)
   __field(unsigned int, slot_nr)
   __field(unsigned int, seq_nr)
   __field(unsigned int, highest_slotid)
   __field(unsigned int, target_highest_slotid)
   __field(unsigned long, status_flags)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   const struct nfs4_slot *sr_slot = res->sr_slot;
   __entry->session = nfs_session_id_hash(&session->sess_id);
   __entry->slot_nr = sr_slot->slot_nr;
   __entry->seq_nr = sr_slot->seq_nr;
   __entry->highest_slotid = res->sr_highest_slotid;
   __entry->target_highest_slotid =
     res->sr_target_highest_slotid;
   __entry->status_flags = res->sr_status_flags;
   __entry->error = res->sr_status < 0 ?
     -res->sr_status : 0;
  ),
  TP_printk(
   "error=%ld (%s) session=0x%08x slot_nr=%u seq_nr=%u "
   "highest_slotid=%u target_highest_slotid=%u "
   "status_flags=0x%lx (%s)",
   -__entry->error,
   show_nfs4_status(__entry->error),
   __entry->session,
   __entry->slot_nr,
   __entry->seq_nr,
   __entry->highest_slotid,
   __entry->target_highest_slotid,
   __entry->status_flags,
   show_nfs4_seq4_status(__entry->status_flags)
  )
);

struct cb_sequenceargs;
struct cb_sequenceres;

TRACE_EVENT(nfs4_cb_sequence,
  TP_PROTO(
   const struct cb_sequenceargs *args,
   const struct cb_sequenceres *res,
   __be32 status
  ),
  TP_ARGS(args, res, status),

  TP_STRUCT__entry(
   __field(unsigned int, session)
   __field(unsigned int, slot_nr)
   __field(unsigned int, seq_nr)
   __field(unsigned int, highest_slotid)
   __field(unsigned int, cachethis)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   __entry->session = nfs_session_id_hash(&args->csa_sessionid);
   __entry->slot_nr = args->csa_slotid;
   __entry->seq_nr = args->csa_sequenceid;
   __entry->highest_slotid = args->csa_highestslotid;
   __entry->cachethis = args->csa_cachethis;
   __entry->error = be32_to_cpu(status);
  ),

  TP_printk(
   "error=%ld (%s) session=0x%08x slot_nr=%u seq_nr=%u "
   "highest_slotid=%u",
   -__entry->error,
   show_nfs4_status(__entry->error),
   __entry->session,
   __entry->slot_nr,
   __entry->seq_nr,
   __entry->highest_slotid
  )
);

TRACE_EVENT(nfs4_cb_seqid_err,
  TP_PROTO(
   const struct cb_sequenceargs *args,
   __be32 status
  ),
  TP_ARGS(args, status),

  TP_STRUCT__entry(
   __field(unsigned int, session)
   __field(unsigned int, slot_nr)
   __field(unsigned int, seq_nr)
   __field(unsigned int, highest_slotid)
   __field(unsigned int, cachethis)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   __entry->session = nfs_session_id_hash(&args->csa_sessionid);
   __entry->slot_nr = args->csa_slotid;
   __entry->seq_nr = args->csa_sequenceid;
   __entry->highest_slotid = args->csa_highestslotid;
   __entry->cachethis = args->csa_cachethis;
   __entry->error = be32_to_cpu(status);
  ),

  TP_printk(
   "error=%ld (%s) session=0x%08x slot_nr=%u seq_nr=%u "
   "highest_slotid=%u",
   -__entry->error,
   show_nfs4_status(__entry->error),
   __entry->session,
   __entry->slot_nr,
   __entry->seq_nr,
   __entry->highest_slotid
  )
);

TRACE_EVENT(nfs4_cb_offload,
  TP_PROTO(
   const struct nfs_fh *cb_fh,
   const nfs4_stateid *cb_stateid,
   uint64_t cb_count,
   int cb_error,
   int cb_how_stable
  ),

  TP_ARGS(cb_fh, cb_stateid, cb_count, cb_error,
   cb_how_stable),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(u32, fhandle)
   __field(loff_t, cb_count)
   __field(int, cb_how)
   __field(int, cb_stateid_seq)
   __field(u32, cb_stateid_hash)
  ),

  TP_fast_assign(
   __entry->error = cb_error < 0 ? -cb_error : 0;
   __entry->fhandle = nfs_fhandle_hash(cb_fh);
   __entry->cb_stateid_seq =
    be32_to_cpu(cb_stateid->seqid);
   __entry->cb_stateid_hash =
    nfs_stateid_hash(cb_stateid);
   __entry->cb_count = cb_count;
   __entry->cb_how = cb_how_stable;
  ),

  TP_printk(
   "error=%ld (%s) fhandle=0x%08x cb_stateid=%d:0x%08x "
   "cb_count=%llu cb_how=%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   __entry->fhandle,
   __entry->cb_stateid_seq, __entry->cb_stateid_hash,
   __entry->cb_count,
   show_nfs_stable_how(__entry->cb_how)
  )
);

TRACE_EVENT(pnfs_ds_connect,
  TP_PROTO(
   char *ds_remotestr,
   int status
  ),

  TP_ARGS(ds_remotestr, status),

  TP_STRUCT__entry(
   __string(ds_ips, ds_remotestr)
   __field(int, status)
  ),

  TP_fast_assign(
   __assign_str(ds_ips);
   __entry->status = status;
  ),

  TP_printk(
   "ds_ips=%s, status=%d",
   __get_str(ds_ips),
   __entry->status
                )
);

#endif /* CONFIG_NFS_V4_1 */

TRACE_EVENT(nfs4_setup_sequence,
  TP_PROTO(
   const struct nfs4_session *session,
   const struct nfs4_sequence_args *args
  ),
  TP_ARGS(session, args),

  TP_STRUCT__entry(
   __field(unsigned int, session)
   __field(unsigned int, slot_nr)
   __field(unsigned int, seq_nr)
   __field(unsigned int, highest_used_slotid)
  ),

  TP_fast_assign(
   const struct nfs4_slot *sa_slot = args->sa_slot;
   __entry->session = session ? nfs_session_id_hash(&session->sess_id) : 0;
   __entry->slot_nr = sa_slot->slot_nr;
   __entry->seq_nr = sa_slot->seq_nr;
   __entry->highest_used_slotid =
     sa_slot->table->highest_used_slotid;
  ),
  TP_printk(
   "session=0x%08x slot_nr=%u seq_nr=%u "
   "highest_used_slotid=%u",
   __entry->session,
   __entry->slot_nr,
   __entry->seq_nr,
   __entry->highest_used_slotid
  )
);

TRACE_DEFINE_ENUM(NFS4CLNT_MANAGER_RUNNING);
TRACE_DEFINE_ENUM(NFS4CLNT_CHECK_LEASE);
TRACE_DEFINE_ENUM(NFS4CLNT_LEASE_EXPIRED);
TRACE_DEFINE_ENUM(NFS4CLNT_RECLAIM_REBOOT);
TRACE_DEFINE_ENUM(NFS4CLNT_RECLAIM_NOGRACE);
TRACE_DEFINE_ENUM(NFS4CLNT_DELEGRETURN);
TRACE_DEFINE_ENUM(NFS4CLNT_SESSION_RESET);
TRACE_DEFINE_ENUM(NFS4CLNT_LEASE_CONFIRM);
TRACE_DEFINE_ENUM(NFS4CLNT_SERVER_SCOPE_MISMATCH);
TRACE_DEFINE_ENUM(NFS4CLNT_PURGE_STATE);
TRACE_DEFINE_ENUM(NFS4CLNT_BIND_CONN_TO_SESSION);
TRACE_DEFINE_ENUM(NFS4CLNT_MOVED);
TRACE_DEFINE_ENUM(NFS4CLNT_LEASE_MOVED);
TRACE_DEFINE_ENUM(NFS4CLNT_DELEGATION_EXPIRED);
TRACE_DEFINE_ENUM(NFS4CLNT_RUN_MANAGER);
TRACE_DEFINE_ENUM(NFS4CLNT_MANAGER_AVAILABLE);
TRACE_DEFINE_ENUM(NFS4CLNT_RECALL_RUNNING);
TRACE_DEFINE_ENUM(NFS4CLNT_RECALL_ANY_LAYOUT_READ);
TRACE_DEFINE_ENUM(NFS4CLNT_RECALL_ANY_LAYOUT_RW);
TRACE_DEFINE_ENUM(NFS4CLNT_DELEGRETURN_DELAYED);

#define show_nfs4_clp_state(state) \
 __print_flags(state, "|", \
 { BIT(NFS4CLNT_MANAGER_RUNNING), "MANAGER_RUNNING" }, \
 { BIT(NFS4CLNT_CHECK_LEASE),  "CHECK_LEASE" }, \
 { BIT(NFS4CLNT_LEASE_EXPIRED), "LEASE_EXPIRED" }, \
 { BIT(NFS4CLNT_RECLAIM_REBOOT), "RECLAIM_REBOOT" }, \
 { BIT(NFS4CLNT_RECLAIM_NOGRACE), "RECLAIM_NOGRACE" }, \
 { BIT(NFS4CLNT_DELEGRETURN),  "DELEGRETURN" }, \
 { BIT(NFS4CLNT_SESSION_RESET), "SESSION_RESET" }, \
 { BIT(NFS4CLNT_LEASE_CONFIRM), "LEASE_CONFIRM" }, \
 { BIT(NFS4CLNT_SERVER_SCOPE_MISMATCH), "SERVER_SCOPE_MISMATCH" }, \
 { BIT(NFS4CLNT_PURGE_STATE),  "PURGE_STATE" }, \
 { BIT(NFS4CLNT_BIND_CONN_TO_SESSION), "BIND_CONN_TO_SESSION" }, \
 { BIT(NFS4CLNT_MOVED),  "MOVED" }, \
 { BIT(NFS4CLNT_LEASE_MOVED),  "LEASE_MOVED" }, \
 { BIT(NFS4CLNT_DELEGATION_EXPIRED), "DELEGATION_EXPIRED" }, \
 { BIT(NFS4CLNT_RUN_MANAGER),  "RUN_MANAGER" }, \
 { BIT(NFS4CLNT_MANAGER_AVAILABLE), "MANAGER_AVAILABLE" }, \
 { BIT(NFS4CLNT_RECALL_RUNNING), "RECALL_RUNNING" }, \
 { BIT(NFS4CLNT_RECALL_ANY_LAYOUT_READ), "RECALL_ANY_LAYOUT_READ" }, \
 { BIT(NFS4CLNT_RECALL_ANY_LAYOUT_RW), "RECALL_ANY_LAYOUT_RW" }, \
 { BIT(NFS4CLNT_DELEGRETURN_DELAYED), "DELERETURN_DELAYED" })

TRACE_EVENT(nfs4_state_mgr,
  TP_PROTO(
   const struct nfs_client *clp
  ),

  TP_ARGS(clp),

  TP_STRUCT__entry(
   __field(unsigned long, state)
   __string(hostname, clp->cl_hostname)
  ),

  TP_fast_assign(
   __entry->state = clp->cl_state;
   __assign_str(hostname);
  ),

  TP_printk(
   "hostname=%s clp state=%s", __get_str(hostname),
   show_nfs4_clp_state(__entry->state)
  )
)

TRACE_EVENT(nfs4_state_mgr_failed,
  TP_PROTO(
   const struct nfs_client *clp,
   const char *section,
   int status
  ),

  TP_ARGS(clp, section, status),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(unsigned long, state)
   __string(hostname, clp->cl_hostname)
   __string(section, section)
  ),

  TP_fast_assign(
   __entry->error = status < 0 ? -status : 0;
   __entry->state = clp->cl_state;
   __assign_str(hostname);
   __assign_str(section);
  ),

  TP_printk(
   "hostname=%s clp state=%s error=%ld (%s) section=%s",
   __get_str(hostname),
   show_nfs4_clp_state(__entry->state), -__entry->error,
   show_nfs4_status(__entry->error), __get_str(section)

  )
)

TRACE_EVENT(nfs4_xdr_bad_operation,
  TP_PROTO(
   const struct xdr_stream *xdr,
   u32 op,
   u32 expected
  ),

  TP_ARGS(xdr, op, expected),

  TP_STRUCT__entry(
   __field(unsigned int, task_id)
   __field(unsigned int, client_id)
   __field(u32, xid)
   __field(u32, op)
   __field(u32, expected)
  ),

  TP_fast_assign(
   const struct rpc_rqst *rqstp = xdr->rqst;
   const struct rpc_task *task = rqstp->rq_task;

   __entry->task_id = task->tk_pid;
   __entry->client_id = task->tk_client->cl_clid;
   __entry->xid = be32_to_cpu(rqstp->rq_xid);
   __entry->op = op;
   __entry->expected = expected;
  ),

  TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
     " xid=0x%08x operation=%u, expected=%u",
   __entry->task_id, __entry->client_id, __entry->xid,
   __entry->op, __entry->expected
  )
);

DECLARE_EVENT_CLASS(nfs4_xdr_event,
  TP_PROTO(
   const struct xdr_stream *xdr,
   u32 op,
   u32 error
  ),

  TP_ARGS(xdr, op, error),

  TP_STRUCT__entry(
   __field(unsigned int, task_id)
   __field(unsigned int, client_id)
   __field(u32, xid)
   __field(u32, op)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   const struct rpc_rqst *rqstp = xdr->rqst;
   const struct rpc_task *task = rqstp->rq_task;

   __entry->task_id = task->tk_pid;
   __entry->client_id = task->tk_client->cl_clid;
   __entry->xid = be32_to_cpu(rqstp->rq_xid);
   __entry->op = op;
   __entry->error = error;
  ),

  TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
     " xid=0x%08x error=%ld (%s) operation=%u",
   __entry->task_id, __entry->client_id, __entry->xid,
   -__entry->error, show_nfs4_status(__entry->error),
   __entry->op
  )
);
#define DEFINE_NFS4_XDR_EVENT(name) \
 DEFINE_EVENT(nfs4_xdr_event, name, \
   TP_PROTO( \
    const struct xdr_stream *xdr, \
    u32 op, \
    u32 error \
   ), \
   TP_ARGS(xdr, op, error))
DEFINE_NFS4_XDR_EVENT(nfs4_xdr_status);
DEFINE_NFS4_XDR_EVENT(nfs4_xdr_bad_filehandle);

DECLARE_EVENT_CLASS(nfs4_cb_error_class,
  TP_PROTO(
   __be32 xid,
   u32 cb_ident
  ),

  TP_ARGS(xid, cb_ident),

  TP_STRUCT__entry(
   __field(u32, xid)
   __field(u32, cbident)
  ),

  TP_fast_assign(
   __entry->xid = be32_to_cpu(xid);
   __entry->cbident = cb_ident;
  ),

  TP_printk(
   "xid=0x%08x cb_ident=0x%08x",
   __entry->xid, __entry->cbident
  )
);

#define DEFINE_CB_ERROR_EVENT(name) \
 DEFINE_EVENT(nfs4_cb_error_class, nfs_cb_##name, \
   TP_PROTO( \
    __be32 xid, \
    u32 cb_ident \
   ), \
   TP_ARGS(xid, cb_ident))

DEFINE_CB_ERROR_EVENT(no_clp);
DEFINE_CB_ERROR_EVENT(badprinc);

DECLARE_EVENT_CLASS(nfs4_open_event,
  TP_PROTO(
   const struct nfs_open_context *ctx,
   int flags,
   int error
  ),

  TP_ARGS(ctx, flags, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(unsigned long, flags)
   __field(unsigned long, fmode)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(u64, dir)
   __string(name, ctx->dentry->d_name.name)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
   __field(int, openstateid_seq)
   __field(u32, openstateid_hash)
  ),

  TP_fast_assign(
   const struct nfs4_state *state = ctx->state;
   const struct inode *inode = NULL;

   __entry->error = -error;
   __entry->flags = flags;
   __entry->fmode = (__force unsigned long)ctx->mode;
   __entry->dev = ctx->dentry->d_sb->s_dev;
   if (!IS_ERR_OR_NULL(state)) {
    inode = state->inode;
    __entry->stateid_seq =
     be32_to_cpu(state->stateid.seqid);
    __entry->stateid_hash =
     nfs_stateid_hash(&state->stateid);
    __entry->openstateid_seq =
     be32_to_cpu(state->open_stateid.seqid);
    __entry->openstateid_hash =
     nfs_stateid_hash(&state->open_stateid);
   } else {
    __entry->stateid_seq = 0;
    __entry->stateid_hash = 0;
    __entry->openstateid_seq = 0;
    __entry->openstateid_hash = 0;
   }
   if (inode != NULL) {
    __entry->fileid = NFS_FILEID(inode);
    __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   } else {
    __entry->fileid = 0;
    __entry->fhandle = 0;
   }
   __entry->dir = NFS_FILEID(d_inode(ctx->dentry->d_parent));
   __assign_str(name);
  ),

  TP_printk(
   "error=%ld (%s) flags=%lu (%s) fmode=%s "
   "fileid=%02x:%02x:%llu fhandle=0x%08x "
   "name=%02x:%02x:%llu/%s stateid=%d:0x%08x "
   "openstateid=%d:0x%08x",
    -__entry->error,
    show_nfs4_status(__entry->error),
    __entry->flags,
    show_fs_fcntl_open_flags(__entry->flags),
    show_fs_fmode_flags(__entry->fmode),
    MAJOR(__entry->dev), MINOR(__entry->dev),
    (unsigned long long)__entry->fileid,
    __entry->fhandle,
    MAJOR(__entry->dev), MINOR(__entry->dev),
    (unsigned long long)__entry->dir,
    __get_str(name),
    __entry->stateid_seq, __entry->stateid_hash,
    __entry->openstateid_seq, __entry->openstateid_hash
  )
);

#define DEFINE_NFS4_OPEN_EVENT(name) \
 DEFINE_EVENT(nfs4_open_event, name, \
   TP_PROTO( \
    const struct nfs_open_context *ctx, \
    int flags, \
    int error \
   ), \
   TP_ARGS(ctx, flags, error))
DEFINE_NFS4_OPEN_EVENT(nfs4_open_reclaim);
DEFINE_NFS4_OPEN_EVENT(nfs4_open_expired);
DEFINE_NFS4_OPEN_EVENT(nfs4_open_file);

TRACE_EVENT(nfs4_cached_open,
  TP_PROTO(
   const struct nfs4_state *state
  ),
  TP_ARGS(state),
  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned int, fmode)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = state->inode;

   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->fmode = (__force unsigned int)state->state;
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
  ),

  TP_printk(
   "fmode=%s fileid=%02x:%02x:%llu "
   "fhandle=0x%08x stateid=%d:0x%08x",
   __entry->fmode ?  show_fs_fmode_flags(__entry->fmode) :
       "closed",
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash
  )
);

TRACE_EVENT(nfs4_close,
  TP_PROTO(
   const struct nfs4_state *state,
   const struct nfs_closeargs *args,
   const struct nfs_closeres *res,
   int error
  ),

  TP_ARGS(state, args, res, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned int, fmode)
   __field(unsigned long, error)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = state->inode;

   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->fmode = (__force unsigned int)state->state;
   __entry->error = error < 0 ? -error : 0;
   __entry->stateid_seq =
    be32_to_cpu(args->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&args->stateid);
  ),

  TP_printk(
   "error=%ld (%s) fmode=%s fileid=%02x:%02x:%llu "
   "fhandle=0x%08x openstateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   __entry->fmode ?  show_fs_fmode_flags(__entry->fmode) :
       "closed",
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash
  )
);

DECLARE_EVENT_CLASS(nfs4_lock_event,
  TP_PROTO(
   const struct file_lock *request,
   const struct nfs4_state *state,
   int cmd,
   int error
  ),

  TP_ARGS(request, state, cmd, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(unsigned long, cmd)
   __field(unsigned long, type)
   __field(loff_t, start)
   __field(loff_t, end)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = state->inode;

   __entry->error = error < 0 ? -error : 0;
   __entry->cmd = cmd;
   __entry->type = request->c.flc_type;
   __entry->start = request->fl_start;
   __entry->end = request->fl_end;
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
  ),

  TP_printk(
   "error=%ld (%s) cmd=%s:%s range=%lld:%lld "
   "fileid=%02x:%02x:%llu fhandle=0x%08x "
   "stateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   show_fs_fcntl_cmd(__entry->cmd),
   show_fs_fcntl_lock_type(__entry->type),
   (long long)__entry->start,
   (long long)__entry->end,
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash
  )
);

#define DEFINE_NFS4_LOCK_EVENT(name) \
 DEFINE_EVENT(nfs4_lock_event, name, \
   TP_PROTO( \
    const struct file_lock *request, \
    const struct nfs4_state *state, \
    int cmd, \
    int error \
   ), \
   TP_ARGS(request, state, cmd, error))
DEFINE_NFS4_LOCK_EVENT(nfs4_get_lock);
DEFINE_NFS4_LOCK_EVENT(nfs4_unlock);

TRACE_EVENT(nfs4_set_lock,
  TP_PROTO(
   const struct file_lock *request,
   const struct nfs4_state *state,
   const nfs4_stateid *lockstateid,
   int cmd,
   int error
  ),

  TP_ARGS(request, state, lockstateid, cmd, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(unsigned long, cmd)
   __field(unsigned long, type)
   __field(loff_t, start)
   __field(loff_t, end)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
   __field(int, lockstateid_seq)
   __field(u32, lockstateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = state->inode;

   __entry->error = error < 0 ? -error : 0;
   __entry->cmd = cmd;
   __entry->type = request->c.flc_type;
   __entry->start = request->fl_start;
   __entry->end = request->fl_end;
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
   __entry->lockstateid_seq =
    be32_to_cpu(lockstateid->seqid);
   __entry->lockstateid_hash =
    nfs_stateid_hash(lockstateid);
  ),

  TP_printk(
   "error=%ld (%s) cmd=%s:%s range=%lld:%lld "
   "fileid=%02x:%02x:%llu fhandle=0x%08x "
   "stateid=%d:0x%08x lockstateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   show_fs_fcntl_cmd(__entry->cmd),
   show_fs_fcntl_lock_type(__entry->type),
   (long long)__entry->start,
   (long long)__entry->end,
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash,
   __entry->lockstateid_seq, __entry->lockstateid_hash
  )
);

TRACE_DEFINE_ENUM(LK_STATE_IN_USE);
TRACE_DEFINE_ENUM(NFS_DELEGATED_STATE);
TRACE_DEFINE_ENUM(NFS_OPEN_STATE);
TRACE_DEFINE_ENUM(NFS_O_RDONLY_STATE);
TRACE_DEFINE_ENUM(NFS_O_WRONLY_STATE);
TRACE_DEFINE_ENUM(NFS_O_RDWR_STATE);
TRACE_DEFINE_ENUM(NFS_STATE_RECLAIM_REBOOT);
TRACE_DEFINE_ENUM(NFS_STATE_RECLAIM_NOGRACE);
TRACE_DEFINE_ENUM(NFS_STATE_POSIX_LOCKS);
TRACE_DEFINE_ENUM(NFS_STATE_RECOVERY_FAILED);
TRACE_DEFINE_ENUM(NFS_STATE_MAY_NOTIFY_LOCK);
TRACE_DEFINE_ENUM(NFS_STATE_CHANGE_WAIT);
TRACE_DEFINE_ENUM(NFS_CLNT_DST_SSC_COPY_STATE);
TRACE_DEFINE_ENUM(NFS_CLNT_SRC_SSC_COPY_STATE);
TRACE_DEFINE_ENUM(NFS_SRV_SSC_COPY_STATE);

#define show_nfs4_state_flags(flags) \
 __print_flags(flags, "|", \
  { LK_STATE_IN_USE,  "IN_USE" }, \
  { NFS_DELEGATED_STATE,  "DELEGATED" }, \
  { NFS_OPEN_STATE,  "OPEN" }, \
  { NFS_O_RDONLY_STATE,  "O_RDONLY" }, \
  { NFS_O_WRONLY_STATE,  "O_WRONLY" }, \
  { NFS_O_RDWR_STATE,  "O_RDWR" }, \
  { NFS_STATE_RECLAIM_REBOOT, "RECLAIM_REBOOT" }, \
  { NFS_STATE_RECLAIM_NOGRACE, "RECLAIM_NOGRACE" }, \
  { NFS_STATE_POSIX_LOCKS, "POSIX_LOCKS" }, \
  { NFS_STATE_RECOVERY_FAILED, "RECOVERY_FAILED" }, \
  { NFS_STATE_MAY_NOTIFY_LOCK, "MAY_NOTIFY_LOCK" }, \
  { NFS_STATE_CHANGE_WAIT, "CHANGE_WAIT" }, \
  { NFS_CLNT_DST_SSC_COPY_STATE, "CLNT_DST_SSC_COPY" }, \
  { NFS_CLNT_SRC_SSC_COPY_STATE, "CLNT_SRC_SSC_COPY" }, \
  { NFS_SRV_SSC_COPY_STATE, "SRV_SSC_COPY" })

#define show_nfs4_lock_flags(flags) \
 __print_flags(flags, "|", \
  { BIT(NFS_LOCK_INITIALIZED), "INITIALIZED" }, \
  { BIT(NFS_LOCK_LOST),  "LOST" })

TRACE_EVENT(nfs4_state_lock_reclaim,
  TP_PROTO(
   const struct nfs4_state *state,
   const struct nfs4_lock_state *lock
  ),

  TP_ARGS(state, lock),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned long, state_flags)
   __field(unsigned long, lock_flags)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = state->inode;

   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->state_flags = state->flags;
   __entry->lock_flags = lock->ls_flags;
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
  ),

  TP_printk(
   "fileid=%02x:%02x:%llu fhandle=0x%08x "
   "stateid=%d:0x%08x state_flags=%s lock_flags=%s",
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid, __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash,
   show_nfs4_state_flags(__entry->state_flags),
   show_nfs4_lock_flags(__entry->lock_flags)
  )
)

DECLARE_EVENT_CLASS(nfs4_set_delegation_event,
  TP_PROTO(
   const struct inode *inode,
   fmode_t fmode
  ),

  TP_ARGS(inode, fmode),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned int, fmode)
  ),

  TP_fast_assign(
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->fmode = (__force unsigned int)fmode;
  ),

  TP_printk(
   "fmode=%s fileid=%02x:%02x:%llu fhandle=0x%08x",
   show_fs_fmode_flags(__entry->fmode),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle
  )
);
#define DEFINE_NFS4_SET_DELEGATION_EVENT(name) \
 DEFINE_EVENT(nfs4_set_delegation_event, name, \
   TP_PROTO( \
    const struct inode *inode, \
    fmode_t fmode \
   ), \
   TP_ARGS(inode, fmode))
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_set_delegation);
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_reclaim_delegation);
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_detach_delegation);

#define show_delegation_flags(flags) \
 __print_flags(flags, "|", \
  { BIT(NFS_DELEGATION_NEED_RECLAIM), "NEED_RECLAIM" }, \
  { BIT(NFS_DELEGATION_RETURN), "RETURN" }, \
  { BIT(NFS_DELEGATION_RETURN_IF_CLOSED), "RETURN_IF_CLOSED" }, \
  { BIT(NFS_DELEGATION_REFERENCED), "REFERENCED" }, \
  { BIT(NFS_DELEGATION_RETURNING), "RETURNING" }, \
  { BIT(NFS_DELEGATION_REVOKED), "REVOKED" }, \
  { BIT(NFS_DELEGATION_TEST_EXPIRED), "TEST_EXPIRED" }, \
  { BIT(NFS_DELEGATION_INODE_FREEING), "INODE_FREEING" }, \
  { BIT(NFS_DELEGATION_RETURN_DELAYED), "RETURN_DELAYED" })

DECLARE_EVENT_CLASS(nfs4_delegation_event,
  TP_PROTO(
   const struct nfs_delegation *delegation
  ),

  TP_ARGS(delegation),

  TP_STRUCT__entry(
   __field(u32, fhandle)
   __field(unsigned int, fmode)
   __field(unsigned long, flags)
  ),

  TP_fast_assign(
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(delegation->inode));
   __entry->fmode = delegation->type;
   __entry->flags = delegation->flags;
  ),

  TP_printk(
   "fhandle=0x%08x fmode=%s flags=%s",
   __entry->fhandle, show_fs_fmode_flags(__entry->fmode),
   show_delegation_flags(__entry->flags)
  )
);
#define DEFINE_NFS4_DELEGATION_EVENT(name) \
 DEFINE_EVENT(nfs4_delegation_event, name, \
   TP_PROTO( \
    const struct nfs_delegation *delegation \
   ), \
   TP_ARGS(delegation))
DEFINE_NFS4_DELEGATION_EVENT(nfs_delegation_need_return);

TRACE_EVENT(nfs4_delegreturn_exit,
  TP_PROTO(
   const struct nfs4_delegreturnargs *args,
   const struct nfs4_delegreturnres *res,
   int error
  ),

  TP_ARGS(args, res, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(unsigned long, error)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   __entry->dev = res->server->s_dev;
   __entry->fhandle = nfs_fhandle_hash(args->fhandle);
   __entry->error = error < 0 ? -error : 0;
   __entry->stateid_seq =
    be32_to_cpu(args->stateid->seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(args->stateid);
  ),

  TP_printk(
   "error=%ld (%s) dev=%02x:%02x fhandle=0x%08x "
   "stateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash
  )
);

#ifdef CONFIG_NFS_V4_1
DECLARE_EVENT_CLASS(nfs4_test_stateid_event,
  TP_PROTO(
   const struct nfs4_state *state,
   const struct nfs4_lock_state *lsp,
   int error
  ),

  TP_ARGS(state, lsp, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = state->inode;

   __entry->error = error < 0 ? -error : 0;
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "stateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash
  )
);

#define DEFINE_NFS4_TEST_STATEID_EVENT(name) \
 DEFINE_EVENT(nfs4_test_stateid_event, name, \
   TP_PROTO( \
    const struct nfs4_state *state, \
    const struct nfs4_lock_state *lsp, \
    int error \
   ), \
   TP_ARGS(state, lsp, error))
DEFINE_NFS4_TEST_STATEID_EVENT(nfs4_test_delegation_stateid);
DEFINE_NFS4_TEST_STATEID_EVENT(nfs4_test_open_stateid);
DEFINE_NFS4_TEST_STATEID_EVENT(nfs4_test_lock_stateid);
#endif /* CONFIG_NFS_V4_1 */

DECLARE_EVENT_CLASS(nfs4_lookup_event,
  TP_PROTO(
   const struct inode *dir,
   const struct qstr *name,
   int error
  ),

  TP_ARGS(dir, name, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(unsigned long, error)
   __field(u64, dir)
   __string(name, name->name)
  ),

  TP_fast_assign(
   __entry->dev = dir->i_sb->s_dev;
   __entry->dir = NFS_FILEID(dir);
   __entry->error = -error;
   __assign_str(name);
  ),

  TP_printk(
   "error=%ld (%s) name=%02x:%02x:%llu/%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->dir,
   __get_str(name)
  )
);

#define DEFINE_NFS4_LOOKUP_EVENT(name) \
 DEFINE_EVENT(nfs4_lookup_event, name, \
   TP_PROTO( \
    const struct inode *dir, \
    const struct qstr *name, \
    int error \
   ), \
   TP_ARGS(dir, name, error))

DEFINE_NFS4_LOOKUP_EVENT(nfs4_lookup);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_symlink);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_mkdir);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_mknod);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_remove);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_get_fs_locations);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_secinfo);

TRACE_EVENT(nfs4_lookupp,
  TP_PROTO(
   const struct inode *inode,
   int error
  ),

  TP_ARGS(inode, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u64, ino)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   __entry->dev = inode->i_sb->s_dev;
   __entry->ino = NFS_FILEID(inode);
   __entry->error = error < 0 ? -error : 0;
  ),

  TP_printk(
   "error=%ld (%s) inode=%02x:%02x:%llu",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->ino
  )
);

TRACE_EVENT(nfs4_rename,
  TP_PROTO(
   const struct inode *olddir,
   const struct qstr *oldname,
   const struct inode *newdir,
   const struct qstr *newname,
   int error
  ),

  TP_ARGS(olddir, oldname, newdir, newname, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(unsigned long, error)
   __field(u64, olddir)
   __string(oldname, oldname->name)
   __field(u64, newdir)
   __string(newname, newname->name)
  ),

  TP_fast_assign(
   __entry->dev = olddir->i_sb->s_dev;
   __entry->olddir = NFS_FILEID(olddir);
   __entry->newdir = NFS_FILEID(newdir);
   __entry->error = error < 0 ? -error : 0;
   __assign_str(oldname);
   __assign_str(newname);
  ),

  TP_printk(
   "error=%ld (%s) oldname=%02x:%02x:%llu/%s "
   "newname=%02x:%02x:%llu/%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->olddir,
   __get_str(oldname),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->newdir,
   __get_str(newname)
  )
);

DECLARE_EVENT_CLASS(nfs4_inode_event,
  TP_PROTO(
   const struct inode *inode,
   int error
  ),

  TP_ARGS(inode, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->error = error < 0 ? -error : 0;
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle
  )
);

#define DEFINE_NFS4_INODE_EVENT(name) \
 DEFINE_EVENT(nfs4_inode_event, name, \
   TP_PROTO( \
    const struct inode *inode, \
    int error \
   ), \
   TP_ARGS(inode, error))

DEFINE_NFS4_INODE_EVENT(nfs4_access);
DEFINE_NFS4_INODE_EVENT(nfs4_readlink);
DEFINE_NFS4_INODE_EVENT(nfs4_readdir);
DEFINE_NFS4_INODE_EVENT(nfs4_get_acl);
DEFINE_NFS4_INODE_EVENT(nfs4_set_acl);
#ifdef CONFIG_NFS_V4_SECURITY_LABEL
DEFINE_NFS4_INODE_EVENT(nfs4_get_security_label);
DEFINE_NFS4_INODE_EVENT(nfs4_set_security_label);
#endif /* CONFIG_NFS_V4_SECURITY_LABEL */

DECLARE_EVENT_CLASS(nfs4_inode_stateid_event,
  TP_PROTO(
   const struct inode *inode,
   const nfs4_stateid *stateid,
   int error
  ),

  TP_ARGS(inode, stateid, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned long, error)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->error = error < 0 ? -error : 0;
   __entry->stateid_seq =
    be32_to_cpu(stateid->seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(stateid);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "stateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash
  )
);

#define DEFINE_NFS4_INODE_STATEID_EVENT(name) \
 DEFINE_EVENT(nfs4_inode_stateid_event, name, \
   TP_PROTO( \
    const struct inode *inode, \
    const nfs4_stateid *stateid, \
    int error \
   ), \
   TP_ARGS(inode, stateid, error))

DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_setattr);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_delegreturn);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update_wait);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_close_stateid_update_wait);

DECLARE_EVENT_CLASS(nfs4_getattr_event,
  TP_PROTO(
   const struct nfs_server *server,
   const struct nfs_fh *fhandle,
   const struct nfs_fattr *fattr,
   int error
  ),

  TP_ARGS(server, fhandle, fattr, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned int, valid)
   __field(unsigned long, error)
  ),

  TP_fast_assign(
   __entry->dev = server->s_dev;
   __entry->valid = fattr->valid;
   __entry->fhandle = nfs_fhandle_hash(fhandle);
   __entry->fileid = (fattr->valid & NFS_ATTR_FATTR_FILEID) ? fattr->fileid : 0;
   __entry->error = error < 0 ? -error : 0;
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "valid=%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   show_nfs_fattr_flags(__entry->valid)
  )
);

#define DEFINE_NFS4_GETATTR_EVENT(name) \
 DEFINE_EVENT(nfs4_getattr_event, name, \
   TP_PROTO( \
    const struct nfs_server *server, \
    const struct nfs_fh *fhandle, \
    const struct nfs_fattr *fattr, \
    int error \
   ), \
   TP_ARGS(server, fhandle, fattr, error))
DEFINE_NFS4_GETATTR_EVENT(nfs4_getattr);
DEFINE_NFS4_GETATTR_EVENT(nfs4_lookup_root);
DEFINE_NFS4_GETATTR_EVENT(nfs4_fsinfo);

DECLARE_EVENT_CLASS(nfs4_inode_callback_event,
  TP_PROTO(
   const struct nfs_client *clp,
   const struct nfs_fh *fhandle,
   const struct inode *inode,
   int error
  ),

  TP_ARGS(clp, fhandle, inode, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __string(dstaddr, clp ? clp->cl_hostname : "unknown")
  ),

  TP_fast_assign(
   __entry->error = error < 0 ? -error : 0;
   __entry->fhandle = nfs_fhandle_hash(fhandle);
   if (!IS_ERR_OR_NULL(inode)) {
    __entry->fileid = NFS_FILEID(inode);
    __entry->dev = inode->i_sb->s_dev;
   } else {
    __entry->fileid = 0;
    __entry->dev = 0;
   }
   __assign_str(dstaddr);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "dstaddr=%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __get_str(dstaddr)
  )
);

#define DEFINE_NFS4_INODE_CALLBACK_EVENT(name) \
 DEFINE_EVENT(nfs4_inode_callback_event, name, \
   TP_PROTO( \
    const struct nfs_client *clp, \
    const struct nfs_fh *fhandle, \
    const struct inode *inode, \
    int error \
   ), \
   TP_ARGS(clp, fhandle, inode, error))
DEFINE_NFS4_INODE_CALLBACK_EVENT(nfs4_cb_getattr);

DECLARE_EVENT_CLASS(nfs4_inode_stateid_callback_event,
  TP_PROTO(
   const struct nfs_client *clp,
   const struct nfs_fh *fhandle,
   const struct inode *inode,
   const nfs4_stateid *stateid,
   int error
  ),

  TP_ARGS(clp, fhandle, inode, stateid, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __string(dstaddr, clp ? clp->cl_hostname : "unknown")
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
  ),

  TP_fast_assign(
   __entry->error = error < 0 ? -error : 0;
   __entry->fhandle = nfs_fhandle_hash(fhandle);
   if (!IS_ERR_OR_NULL(inode)) {
    __entry->fileid = NFS_FILEID(inode);
    __entry->dev = inode->i_sb->s_dev;
   } else {
    __entry->fileid = 0;
    __entry->dev = 0;
   }
   __assign_str(dstaddr);
   __entry->stateid_seq =
    be32_to_cpu(stateid->seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(stateid);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "stateid=%d:0x%08x dstaddr=%s",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->stateid_seq, __entry->stateid_hash,
   __get_str(dstaddr)
  )
);

#define DEFINE_NFS4_INODE_STATEID_CALLBACK_EVENT(name) \
 DEFINE_EVENT(nfs4_inode_stateid_callback_event, name, \
   TP_PROTO( \
    const struct nfs_client *clp, \
    const struct nfs_fh *fhandle, \
    const struct inode *inode, \
    const nfs4_stateid *stateid, \
    int error \
   ), \
   TP_ARGS(clp, fhandle, inode, stateid, error))
DEFINE_NFS4_INODE_STATEID_CALLBACK_EVENT(nfs4_cb_recall);
DEFINE_NFS4_INODE_STATEID_CALLBACK_EVENT(nfs4_cb_layoutrecall_file);

#define show_stateid_type(type) \
 __print_symbolic(type, \
  { NFS4_INVALID_STATEID_TYPE, "INVALID" }, \
  { NFS4_SPECIAL_STATEID_TYPE, "SPECIAL" }, \
  { NFS4_OPEN_STATEID_TYPE, "OPEN" }, \
  { NFS4_LOCK_STATEID_TYPE, "LOCK" }, \
  { NFS4_DELEGATION_STATEID_TYPE, "DELEGATION" }, \
  { NFS4_LAYOUT_STATEID_TYPE, "LAYOUT" }, \
  { NFS4_PNFS_DS_STATEID_TYPE, "PNFS_DS" }, \
  { NFS4_REVOKED_STATEID_TYPE, "REVOKED" }, \
  { NFS4_FREED_STATEID_TYPE, "FREED" })

DECLARE_EVENT_CLASS(nfs4_match_stateid_event,
  TP_PROTO(
   const nfs4_stateid *s1,
   const nfs4_stateid *s2
  ),

  TP_ARGS(s1, s2),

  TP_STRUCT__entry(
   __field(int, s1_seq)
   __field(int, s2_seq)
   __field(u32, s1_hash)
   __field(u32, s2_hash)
   __field(int, s1_type)
   __field(int, s2_type)
  ),

  TP_fast_assign(
   __entry->s1_seq = s1->seqid;
   __entry->s1_hash = nfs_stateid_hash(s1);
   __entry->s1_type = s1->type;
   __entry->s2_seq = s2->seqid;
   __entry->s2_hash = nfs_stateid_hash(s2);
   __entry->s2_type = s2->type;
  ),

  TP_printk(
   "s1=%s:%x:%u s2=%s:%x:%u",
   show_stateid_type(__entry->s1_type),
   __entry->s1_hash, __entry->s1_seq,
   show_stateid_type(__entry->s2_type),
   __entry->s2_hash, __entry->s2_seq
  )
);

#define DEFINE_NFS4_MATCH_STATEID_EVENT(name) \
 DEFINE_EVENT(nfs4_match_stateid_event, name, \
   TP_PROTO( \
    const nfs4_stateid *s1, \
    const nfs4_stateid *s2 \
   ), \
   TP_ARGS(s1, s2))
DEFINE_NFS4_MATCH_STATEID_EVENT(nfs41_match_stateid);
DEFINE_NFS4_MATCH_STATEID_EVENT(nfs4_match_stateid);

DECLARE_EVENT_CLASS(nfs4_idmap_event,
  TP_PROTO(
   const char *name,
   int len,
   u32 id,
   int error
  ),

  TP_ARGS(name, len, id, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(u32, id)
   __dynamic_array(char, name, len > 0 ? len + 1 : 1)
  ),

  TP_fast_assign(
   if (len < 0)
    len = 0;
   __entry->error = error < 0 ? error : 0;
   __entry->id = id;
   memcpy(__get_str(name), name, len);
   __get_str(name)[len] = 0;
  ),

  TP_printk(
   "error=%ld (%s) id=%u name=%s",
   -__entry->error, show_nfs4_status(__entry->error),
   __entry->id,
   __get_str(name)
  )
);
#define DEFINE_NFS4_IDMAP_EVENT(name) \
 DEFINE_EVENT(nfs4_idmap_event, name, \
   TP_PROTO( \
    const char *name, \
    int len, \
    u32 id, \
    int error \
   ), \
   TP_ARGS(name, len, id, error))
DEFINE_NFS4_IDMAP_EVENT(nfs4_map_name_to_uid);
DEFINE_NFS4_IDMAP_EVENT(nfs4_map_group_to_gid);
DEFINE_NFS4_IDMAP_EVENT(nfs4_map_uid_to_name);
DEFINE_NFS4_IDMAP_EVENT(nfs4_map_gid_to_group);

#ifdef CONFIG_NFS_V4_1
#define NFS4_LSEG_LAYOUT_STATEID_HASH(lseg) \
 (lseg ? nfs_stateid_hash(&lseg->pls_layout->plh_stateid) : 0)
#else
#define NFS4_LSEG_LAYOUT_STATEID_HASH(lseg) (0)
#endif

DECLARE_EVENT_CLASS(nfs4_read_event,
  TP_PROTO(
   const struct nfs_pgio_header *hdr,
   int error
  ),

  TP_ARGS(hdr, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(loff_t, offset)
   __field(u32, arg_count)
   __field(u32, res_count)
   __field(unsigned long, error)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
   __field(int, layoutstateid_seq)
   __field(u32, layoutstateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = hdr->inode;
   const struct nfs_inode *nfsi = NFS_I(inode);
   const struct nfs_fh *fh = hdr->args.fh ?
        hdr->args.fh : &nfsi->fh;
   const struct nfs4_state *state =
    hdr->args.context->state;
   const struct pnfs_layout_segment *lseg = hdr->lseg;

   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = nfsi->fileid;
   __entry->fhandle = nfs_fhandle_hash(fh);
   __entry->offset = hdr->args.offset;
   __entry->arg_count = hdr->args.count;
   __entry->res_count = hdr->res.count;
   __entry->error = error < 0 ? -error : 0;
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
   __entry->layoutstateid_seq = lseg ? lseg->pls_seq : 0;
   __entry->layoutstateid_hash =
    NFS4_LSEG_LAYOUT_STATEID_HASH(lseg);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "offset=%lld count=%u res=%u stateid=%d:0x%08x "
   "layoutstateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   (long long)__entry->offset,
   __entry->arg_count, __entry->res_count,
   __entry->stateid_seq, __entry->stateid_hash,
   __entry->layoutstateid_seq, __entry->layoutstateid_hash
  )
);
#define DEFINE_NFS4_READ_EVENT(name) \
 DEFINE_EVENT(nfs4_read_event, name, \
   TP_PROTO( \
    const struct nfs_pgio_header *hdr, \
    int error \
   ), \
   TP_ARGS(hdr, error))
DEFINE_NFS4_READ_EVENT(nfs4_read);
#ifdef CONFIG_NFS_V4_1
DEFINE_NFS4_READ_EVENT(nfs4_pnfs_read);
#endif /* CONFIG_NFS_V4_1 */

DECLARE_EVENT_CLASS(nfs4_write_event,
  TP_PROTO(
   const struct nfs_pgio_header *hdr,
   int error
  ),

  TP_ARGS(hdr, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(loff_t, offset)
   __field(u32, arg_count)
   __field(u32, res_count)
   __field(unsigned long, error)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
   __field(int, layoutstateid_seq)
   __field(u32, layoutstateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = hdr->inode;
   const struct nfs_inode *nfsi = NFS_I(inode);
   const struct nfs_fh *fh = hdr->args.fh ?
        hdr->args.fh : &nfsi->fh;
   const struct nfs4_state *state =
    hdr->args.context->state;
   const struct pnfs_layout_segment *lseg = hdr->lseg;

   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = nfsi->fileid;
   __entry->fhandle = nfs_fhandle_hash(fh);
   __entry->offset = hdr->args.offset;
   __entry->arg_count = hdr->args.count;
   __entry->res_count = hdr->res.count;
   __entry->error = error < 0 ? -error : 0;
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
   __entry->layoutstateid_seq = lseg ? lseg->pls_seq : 0;
   __entry->layoutstateid_hash =
    NFS4_LSEG_LAYOUT_STATEID_HASH(lseg);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "offset=%lld count=%u res=%u stateid=%d:0x%08x "
   "layoutstateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   (long long)__entry->offset,
   __entry->arg_count, __entry->res_count,
   __entry->stateid_seq, __entry->stateid_hash,
   __entry->layoutstateid_seq, __entry->layoutstateid_hash
  )
);

#define DEFINE_NFS4_WRITE_EVENT(name) \
 DEFINE_EVENT(nfs4_write_event, name, \
   TP_PROTO( \
    const struct nfs_pgio_header *hdr, \
    int error \
   ), \
   TP_ARGS(hdr, error))
DEFINE_NFS4_WRITE_EVENT(nfs4_write);
#ifdef CONFIG_NFS_V4_1
DEFINE_NFS4_WRITE_EVENT(nfs4_pnfs_write);
#endif /* CONFIG_NFS_V4_1 */

DECLARE_EVENT_CLASS(nfs4_commit_event,
  TP_PROTO(
   const struct nfs_commit_data *data,
   int error
  ),

  TP_ARGS(data, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(unsigned long, error)
   __field(loff_t, offset)
   __field(u32, count)
   __field(int, layoutstateid_seq)
   __field(u32, layoutstateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = data->inode;
   const struct nfs_inode *nfsi = NFS_I(inode);
   const struct nfs_fh *fh = data->args.fh ?
        data->args.fh : &nfsi->fh;
   const struct pnfs_layout_segment *lseg = data->lseg;

   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = nfsi->fileid;
   __entry->fhandle = nfs_fhandle_hash(fh);
   __entry->offset = data->args.offset;
   __entry->count = data->args.count;
   __entry->error = error < 0 ? -error : 0;
   __entry->layoutstateid_seq = lseg ? lseg->pls_seq : 0;
   __entry->layoutstateid_hash =
    NFS4_LSEG_LAYOUT_STATEID_HASH(lseg);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "offset=%lld count=%u layoutstateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   (long long)__entry->offset,
   __entry->count,
   __entry->layoutstateid_seq, __entry->layoutstateid_hash
  )
);
#define DEFINE_NFS4_COMMIT_EVENT(name) \
 DEFINE_EVENT(nfs4_commit_event, name, \
   TP_PROTO( \
    const struct nfs_commit_data *data, \
    int error \
   ), \
   TP_ARGS(data, error))
DEFINE_NFS4_COMMIT_EVENT(nfs4_commit);
#ifdef CONFIG_NFS_V4_1
DEFINE_NFS4_COMMIT_EVENT(nfs4_pnfs_commit_ds);

TRACE_EVENT(nfs4_layoutget,
  TP_PROTO(
   const struct nfs_open_context *ctx,
   const struct pnfs_layout_range *args,
   const struct pnfs_layout_range *res,
   const nfs4_stateid *layout_stateid,
   int error
  ),

  TP_ARGS(ctx, args, res, layout_stateid, error),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(u32, iomode)
   __field(u64, offset)
   __field(u64, count)
   __field(unsigned long, error)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
   __field(int, layoutstateid_seq)
   __field(u32, layoutstateid_hash)
  ),

  TP_fast_assign(
   const struct inode *inode = d_inode(ctx->dentry);
   const struct nfs4_state *state = ctx->state;
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->iomode = args->iomode;
   __entry->offset = args->offset;
   __entry->count = args->length;
   __entry->error = error < 0 ? -error : 0;
   __entry->stateid_seq =
    be32_to_cpu(state->stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&state->stateid);
   if (!error) {
    __entry->layoutstateid_seq =
    be32_to_cpu(layout_stateid->seqid);
    __entry->layoutstateid_hash =
    nfs_stateid_hash(layout_stateid);
   } else {
    __entry->layoutstateid_seq = 0;
    __entry->layoutstateid_hash = 0;
   }
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "iomode=%s offset=%llu count=%llu stateid=%d:0x%08x "
   "layoutstateid=%d:0x%08x",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   show_pnfs_layout_iomode(__entry->iomode),
   (unsigned long long)__entry->offset,
   (unsigned long long)__entry->count,
   __entry->stateid_seq, __entry->stateid_hash,
   __entry->layoutstateid_seq, __entry->layoutstateid_hash
  )
);

DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_layoutcommit);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_layoutreturn);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_layoutreturn_on_close);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_layouterror);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_layoutstats);

TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_UNKNOWN);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_NO_PNFS);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_RD_ZEROLEN);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_MDSTHRESH);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_NOMEM);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_BULK_RECALL);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_IO_TEST_FAIL);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_FOUND_CACHED);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_RETURN);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_BLOCKED);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_INVALID_OPEN);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_RETRY);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET);
TRACE_DEFINE_ENUM(PNFS_UPDATE_LAYOUT_EXIT);

#define show_pnfs_update_layout_reason(reason)    \
 __print_symbolic(reason,     \
  { PNFS_UPDATE_LAYOUT_UNKNOWN, "unknown" },  \
  { PNFS_UPDATE_LAYOUT_NO_PNFS, "no pnfs" },  \
  { PNFS_UPDATE_LAYOUT_RD_ZEROLEN, "read+zerolen" }, \
  { PNFS_UPDATE_LAYOUT_MDSTHRESH, "mdsthresh" },  \
  { PNFS_UPDATE_LAYOUT_NOMEM, "nomem" },   \
  { PNFS_UPDATE_LAYOUT_BULK_RECALL, "bulk recall" }, \
  { PNFS_UPDATE_LAYOUT_IO_TEST_FAIL, "io test fail" }, \
  { PNFS_UPDATE_LAYOUT_FOUND_CACHED, "found cached" }, \
  { PNFS_UPDATE_LAYOUT_RETURN, "layoutreturn" },  \
  { PNFS_UPDATE_LAYOUT_BLOCKED, "layouts blocked" }, \
  { PNFS_UPDATE_LAYOUT_INVALID_OPEN, "invalid open" }, \
  { PNFS_UPDATE_LAYOUT_RETRY, "retrying" }, \
  { PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET, "sent layoutget" }, \
  { PNFS_UPDATE_LAYOUT_EXIT, "exit" })

TRACE_EVENT(pnfs_update_layout,
  TP_PROTO(struct inode *inode,
   loff_t pos,
   u64 count,
   enum pnfs_iomode iomode,
   struct pnfs_layout_hdr *lo,
   struct pnfs_layout_segment *lseg,
   enum pnfs_update_layout_reason reason
  ),
  TP_ARGS(inode, pos, count, iomode, lo, lseg, reason),
  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u64, fileid)
   __field(u32, fhandle)
   __field(loff_t, pos)
   __field(u64, count)
   __field(enum pnfs_iomode, iomode)
   __field(int, layoutstateid_seq)
   __field(u32, layoutstateid_hash)
   __field(long, lseg)
   __field(enum pnfs_update_layout_reason, reason)
  ),
  TP_fast_assign(
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->pos = pos;
   __entry->count = count;
   __entry->iomode = iomode;
   __entry->reason = reason;
   if (lo != NULL && pnfs_layout_is_valid(lo)) {
    __entry->layoutstateid_seq =
    be32_to_cpu(lo->plh_stateid.seqid);
    __entry->layoutstateid_hash =
    nfs_stateid_hash(&lo->plh_stateid);
   } else {
    __entry->layoutstateid_seq = 0;
    __entry->layoutstateid_hash = 0;
   }
   __entry->lseg = (long)lseg;
  ),
  TP_printk(
   "fileid=%02x:%02x:%llu fhandle=0x%08x "
   "iomode=%s pos=%llu count=%llu "
   "layoutstateid=%d:0x%08x lseg=0x%lx (%s)",
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   show_pnfs_layout_iomode(__entry->iomode),
   (unsigned long long)__entry->pos,
   (unsigned long long)__entry->count,
   __entry->layoutstateid_seq, __entry->layoutstateid_hash,
   __entry->lseg,
   show_pnfs_update_layout_reason(__entry->reason)
  )
);

DECLARE_EVENT_CLASS(pnfs_layout_event,
  TP_PROTO(struct inode *inode,
   loff_t pos,
   u64 count,
   enum pnfs_iomode iomode,
   struct pnfs_layout_hdr *lo,
   struct pnfs_layout_segment *lseg
  ),
  TP_ARGS(inode, pos, count, iomode, lo, lseg),
  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(u64, fileid)
   __field(u32, fhandle)
   __field(loff_t, pos)
   __field(u64, count)
   __field(enum pnfs_iomode, iomode)
   __field(int, layoutstateid_seq)
   __field(u32, layoutstateid_hash)
   __field(long, lseg)
  ),
  TP_fast_assign(
   __entry->dev = inode->i_sb->s_dev;
   __entry->fileid = NFS_FILEID(inode);
   __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
   __entry->pos = pos;
   __entry->count = count;
   __entry->iomode = iomode;
   if (lo != NULL && pnfs_layout_is_valid(lo)) {
    __entry->layoutstateid_seq =
    be32_to_cpu(lo->plh_stateid.seqid);
    __entry->layoutstateid_hash =
    nfs_stateid_hash(&lo->plh_stateid);
   } else {
    __entry->layoutstateid_seq = 0;
    __entry->layoutstateid_hash = 0;
   }
   __entry->lseg = (long)lseg;
  ),
  TP_printk(
   "fileid=%02x:%02x:%llu fhandle=0x%08x "
   "iomode=%s pos=%llu count=%llu "
   "layoutstateid=%d:0x%08x lseg=0x%lx",
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   show_pnfs_layout_iomode(__entry->iomode),
   (unsigned long long)__entry->pos,
   (unsigned long long)__entry->count,
   __entry->layoutstateid_seq, __entry->layoutstateid_hash,
   __entry->lseg
  )
);

#define DEFINE_PNFS_LAYOUT_EVENT(name) \
 DEFINE_EVENT(pnfs_layout_event, name, \
  TP_PROTO(struct inode *inode, \
   loff_t pos, \
   u64 count, \
   enum pnfs_iomode iomode, \
   struct pnfs_layout_hdr *lo, \
   struct pnfs_layout_segment *lseg \
  ), \
  TP_ARGS(inode, pos, count, iomode, lo, lseg))

DEFINE_PNFS_LAYOUT_EVENT(pnfs_mds_fallback_pg_init_read);
DEFINE_PNFS_LAYOUT_EVENT(pnfs_mds_fallback_pg_init_write);
DEFINE_PNFS_LAYOUT_EVENT(pnfs_mds_fallback_pg_get_mirror_count);
DEFINE_PNFS_LAYOUT_EVENT(pnfs_mds_fallback_read_done);
DEFINE_PNFS_LAYOUT_EVENT(pnfs_mds_fallback_write_done);
DEFINE_PNFS_LAYOUT_EVENT(pnfs_mds_fallback_read_pagelist);
DEFINE_PNFS_LAYOUT_EVENT(pnfs_mds_fallback_write_pagelist);

DECLARE_EVENT_CLASS(nfs4_deviceid_event,
  TP_PROTO(
   const struct nfs_client *clp,
   const struct nfs4_deviceid *deviceid
  ),

  TP_ARGS(clp, deviceid),

  TP_STRUCT__entry(
   __string(dstaddr, clp->cl_hostname)
   __array(unsigned char, deviceid, NFS4_DEVICEID4_SIZE)
  ),

  TP_fast_assign(
   __assign_str(dstaddr);
   memcpy(__entry->deviceid, deviceid->data,
          NFS4_DEVICEID4_SIZE);
  ),

  TP_printk(
   "deviceid=%s, dstaddr=%s",
   __print_hex(__entry->deviceid, NFS4_DEVICEID4_SIZE),
   __get_str(dstaddr)
  )
);
#define DEFINE_PNFS_DEVICEID_EVENT(name) \
 DEFINE_EVENT(nfs4_deviceid_event, name, \
   TP_PROTO(const struct nfs_client *clp, \
    const struct nfs4_deviceid *deviceid \
   ), \
   TP_ARGS(clp, deviceid))
DEFINE_PNFS_DEVICEID_EVENT(nfs4_deviceid_free);

DECLARE_EVENT_CLASS(nfs4_deviceid_status,
  TP_PROTO(
   const struct nfs_server *server,
   const struct nfs4_deviceid *deviceid,
   int status
  ),

  TP_ARGS(server, deviceid, status),

  TP_STRUCT__entry(
   __field(dev_t, dev)
   __field(int, status)
   __string(dstaddr, server->nfs_client->cl_hostname)
   __array(unsigned char, deviceid, NFS4_DEVICEID4_SIZE)
  ),

  TP_fast_assign(
   __entry->dev = server->s_dev;
   __entry->status = status;
   __assign_str(dstaddr);
   memcpy(__entry->deviceid, deviceid->data,
          NFS4_DEVICEID4_SIZE);
  ),

  TP_printk(
   "dev=%02x:%02x: deviceid=%s, dstaddr=%s, status=%d",
   MAJOR(__entry->dev), MINOR(__entry->dev),
   __print_hex(__entry->deviceid, NFS4_DEVICEID4_SIZE),
   __get_str(dstaddr),
   __entry->status
  )
);
#define DEFINE_PNFS_DEVICEID_STATUS(name) \
 DEFINE_EVENT(nfs4_deviceid_status, name, \
   TP_PROTO(const struct nfs_server *server, \
    const struct nfs4_deviceid *deviceid, \
    int status \
   ), \
   TP_ARGS(server, deviceid, status))
DEFINE_PNFS_DEVICEID_STATUS(nfs4_getdeviceinfo);
DEFINE_PNFS_DEVICEID_STATUS(nfs4_find_deviceid);

TRACE_EVENT(fl_getdevinfo,
  TP_PROTO(
   const struct nfs_server *server,
   const struct nfs4_deviceid *deviceid,
   char *ds_remotestr
  ),
  TP_ARGS(server, deviceid, ds_remotestr),

  TP_STRUCT__entry(
   __string(mds_addr, server->nfs_client->cl_hostname)
   __array(unsigned char, deviceid, NFS4_DEVICEID4_SIZE)
   __string(ds_ips, ds_remotestr)
  ),

  TP_fast_assign(
   __assign_str(mds_addr);
   __assign_str(ds_ips);
   memcpy(__entry->deviceid, deviceid->data,
          NFS4_DEVICEID4_SIZE);
  ),
  TP_printk(
   "deviceid=%s, mds_addr=%s, ds_ips=%s",
   __print_hex(__entry->deviceid, NFS4_DEVICEID4_SIZE),
   __get_str(mds_addr),
   __get_str(ds_ips)
  )
);

DECLARE_EVENT_CLASS(nfs4_flexfiles_io_event,
  TP_PROTO(
   const struct nfs_pgio_header *hdr,
   int error
  ),

  TP_ARGS(hdr, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(unsigned long, nfs_error)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(loff_t, offset)
   __field(u32, count)
   __field(int, stateid_seq)
   __field(u32, stateid_hash)
   __string(dstaddr, hdr->ds_clp ?
    rpc_peeraddr2str(hdr->ds_clp->cl_rpcclient,
     RPC_DISPLAY_ADDR) : "unknown")
  ),

  TP_fast_assign(
   const struct inode *inode = hdr->inode;

   __entry->error = -error;
   __entry->nfs_error = hdr->res.op_status;
   __entry->fhandle = nfs_fhandle_hash(hdr->args.fh);
   __entry->fileid = NFS_FILEID(inode);
   __entry->dev = inode->i_sb->s_dev;
   __entry->offset = hdr->args.offset;
   __entry->count = hdr->args.count;
   __entry->stateid_seq =
    be32_to_cpu(hdr->args.stateid.seqid);
   __entry->stateid_hash =
    nfs_stateid_hash(&hdr->args.stateid);
   __assign_str(dstaddr);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "offset=%llu count=%u stateid=%d:0x%08x dstaddr=%s "
   "nfs_error=%lu (%s)",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->offset, __entry->count,
   __entry->stateid_seq, __entry->stateid_hash,
   __get_str(dstaddr), __entry->nfs_error,
   show_nfs4_status(__entry->nfs_error)
  )
);

#define DEFINE_NFS4_FLEXFILES_IO_EVENT(name) \
 DEFINE_EVENT(nfs4_flexfiles_io_event, name, \
   TP_PROTO( \
    const struct nfs_pgio_header *hdr, \
    int error \
   ), \
   TP_ARGS(hdr, error))
DEFINE_NFS4_FLEXFILES_IO_EVENT(ff_layout_read_error);
DEFINE_NFS4_FLEXFILES_IO_EVENT(ff_layout_write_error);

TRACE_EVENT(ff_layout_commit_error,
  TP_PROTO(
   const struct nfs_commit_data *data,
   int error
  ),

  TP_ARGS(data, error),

  TP_STRUCT__entry(
   __field(unsigned long, error)
   __field(unsigned long, nfs_error)
   __field(dev_t, dev)
   __field(u32, fhandle)
   __field(u64, fileid)
   __field(loff_t, offset)
   __field(u32, count)
   __string(dstaddr, data->ds_clp ?
    rpc_peeraddr2str(data->ds_clp->cl_rpcclient,
     RPC_DISPLAY_ADDR) : "unknown")
  ),

  TP_fast_assign(
   const struct inode *inode = data->inode;

   __entry->error = -error;
   __entry->nfs_error = data->res.op_status;
   __entry->fhandle = nfs_fhandle_hash(data->args.fh);
   __entry->fileid = NFS_FILEID(inode);
   __entry->dev = inode->i_sb->s_dev;
   __entry->offset = data->args.offset;
   __entry->count = data->args.count;
   __assign_str(dstaddr);
  ),

  TP_printk(
   "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
   "offset=%llu count=%u dstaddr=%s nfs_error=%lu (%s)",
   -__entry->error,
   show_nfs4_status(__entry->error),
   MAJOR(__entry->dev), MINOR(__entry->dev),
   (unsigned long long)__entry->fileid,
   __entry->fhandle,
   __entry->offset, __entry->count,
   __get_str(dstaddr), __entry->nfs_error,
   show_nfs4_status(__entry->nfs_error)
  )
);

TRACE_EVENT(bl_ext_tree_prepare_commit,
  TP_PROTO(
   int ret,
   size_t count,
   u64 lwb,
   bool not_all_ranges
  ),

  TP_ARGS(ret, count, lwb, not_all_ranges),

  TP_STRUCT__entry(
   __field(int, ret)
   __field(size_t, count)
   __field(u64, lwb)
   __field(bool, not_all_ranges)
  ),

  TP_fast_assign(
   __entry->ret = ret;
   __entry->count = count;
   __entry->lwb = lwb;
   __entry->not_all_ranges = not_all_ranges;
  ),

  TP_printk(
   "ret=%d, found %zu ranges, lwb=%llu%s",
   __entry->ret,
   __entry->count,
   __entry->lwb,
   __entry->not_all_ranges ? ", not all ranges encoded" :
        ""
  )
);

DECLARE_EVENT_CLASS(pnfs_bl_pr_key_class,
 TP_PROTO(
  const struct block_device *bdev,
  u64 key
 ),
 TP_ARGS(bdev, key),
 TP_STRUCT__entry(
  __field(u64, key)
  __field(dev_t, dev)
  __string(device, bdev->bd_disk->disk_name)
 ),
 TP_fast_assign(
  __entry->key = key;
  __entry->dev = bdev->bd_dev;
  __assign_str(device);
 ),
 TP_printk("dev=%d,%d (%s) key=0x%016llx",
  MAJOR(__entry->dev), MINOR(__entry->dev),
  __get_str(device), __entry->key
 )
);

#define DEFINE_NFS4_BLOCK_PRKEY_EVENT(name) \
 DEFINE_EVENT(pnfs_bl_pr_key_class, name, \
  TP_PROTO( \
   const struct block_device *bdev, \
   u64 key \
  ), \
  TP_ARGS(bdev, key))
DEFINE_NFS4_BLOCK_PRKEY_EVENT(bl_pr_key_reg);
DEFINE_NFS4_BLOCK_PRKEY_EVENT(bl_pr_key_unreg);

/*
 * From uapi/linux/pr.h
 */
TRACE_DEFINE_ENUM(PR_STS_SUCCESS);
TRACE_DEFINE_ENUM(PR_STS_IOERR);
TRACE_DEFINE_ENUM(PR_STS_RESERVATION_CONFLICT);
TRACE_DEFINE_ENUM(PR_STS_RETRY_PATH_FAILURE);
TRACE_DEFINE_ENUM(PR_STS_PATH_FAST_FAILED);
TRACE_DEFINE_ENUM(PR_STS_PATH_FAILED);

#define show_pr_status(x) \
 __print_symbolic(x, \
  { PR_STS_SUCCESS,  "SUCCESS" }, \
  { PR_STS_IOERR,   "IOERR" }, \
  { PR_STS_RESERVATION_CONFLICT, "RESERVATION_CONFLICT" }, \
  { PR_STS_RETRY_PATH_FAILURE, "RETRY_PATH_FAILURE" }, \
  { PR_STS_PATH_FAST_FAILED, "PATH_FAST_FAILED" }, \
  { PR_STS_PATH_FAILED,  "PATH_FAILED" })

DECLARE_EVENT_CLASS(pnfs_bl_pr_key_err_class,
 TP_PROTO(
  const struct block_device *bdev,
  u64 key,
  int status
 ),
 TP_ARGS(bdev, key, status),
 TP_STRUCT__entry(
  __field(u64, key)
  __field(dev_t, dev)
  __field(unsigned long, status)
  __string(device, bdev->bd_disk->disk_name)
 ),
 TP_fast_assign(
  __entry->key = key;
  __entry->dev = bdev->bd_dev;
  __entry->status = status;
  __assign_str(device);
 ),
 TP_printk("dev=%d,%d (%s) key=0x%016llx status=%s",
  MAJOR(__entry->dev), MINOR(__entry->dev),
  __get_str(device), __entry->key,
  show_pr_status(__entry->status)
 )
);

#define DEFINE_NFS4_BLOCK_PRKEY_ERR_EVENT(name) \
 DEFINE_EVENT(pnfs_bl_pr_key_err_class, name, \
  TP_PROTO( \
   const struct block_device *bdev, \
   u64 key, \
   int status \
  ), \
  TP_ARGS(bdev, key, status))
DEFINE_NFS4_BLOCK_PRKEY_ERR_EVENT(bl_pr_key_reg_err);
DEFINE_NFS4_BLOCK_PRKEY_ERR_EVENT(bl_pr_key_unreg_err);

#ifdef CONFIG_NFS_V4_2
TRACE_DEFINE_ENUM(NFS4_CONTENT_DATA);
TRACE_DEFINE_ENUM(NFS4_CONTENT_HOLE);

#define show_llseek_mode(what)   \
 __print_symbolic(what,   \
  { NFS4_CONTENT_DATA, "DATA" },  \
  { NFS4_CONTENT_HOLE, "HOLE" })

TRACE_EVENT(nfs4_llseek,
  TP_PROTO(
   const struct inode *inode,
   const struct nfs42_seek_args *args,
   const struct nfs42_seek_res *res,
   int error
--> --------------------

--> maximum size reached

--> --------------------