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f01274a933
linux-next/fs/nfsd/trace.h
Trond Myklebust f01274a933 nfsd: Add tracing to nfsd_set_fh_dentry() 
Add tracing to allow us to figure out where any stale filehandle issues
may be originating from.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2020-03-16 12:04:33 -04:00

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2014 Christoph Hellwig.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM nfsd
#if !defined(_NFSD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _NFSD_TRACE_H
#include <linux/tracepoint.h>
#include "nfsfh.h"
TRACE_EVENT(nfsd_compound,
TP_PROTO(const struct svc_rqst *rqst,
u32 args_opcnt),
TP_ARGS(rqst, args_opcnt),
TP_STRUCT__entry(
__field(u32, xid)
__field(u32, args_opcnt)
),
TP_fast_assign(
__entry->xid = be32_to_cpu(rqst->rq_xid);
__entry->args_opcnt = args_opcnt;
),
TP_printk("xid=0x%08x opcnt=%u",
__entry->xid, __entry->args_opcnt)
)
TRACE_EVENT(nfsd_compound_status,
TP_PROTO(u32 args_opcnt,
u32 resp_opcnt,
__be32 status,
const char *name),
TP_ARGS(args_opcnt, resp_opcnt, status, name),
TP_STRUCT__entry(
__field(u32, args_opcnt)
__field(u32, resp_opcnt)
__field(int, status)
__string(name, name)
),
TP_fast_assign(
__entry->args_opcnt = args_opcnt;
__entry->resp_opcnt = resp_opcnt;
__entry->status = be32_to_cpu(status);
__assign_str(name, name);
),
TP_printk("op=%u/%u %s status=%d",
__entry->resp_opcnt, __entry->args_opcnt,
__get_str(name), __entry->status)
)
DECLARE_EVENT_CLASS(nfsd_fh_err_class,
TP_PROTO(struct svc_rqst *rqstp,
struct svc_fh *fhp,
int status),
TP_ARGS(rqstp, fhp, status),
TP_STRUCT__entry(
__field(u32, xid)
__field(u32, fh_hash)
__field(int, status)
),
TP_fast_assign(
__entry->xid = be32_to_cpu(rqstp->rq_xid);
__entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle);
__entry->status = status;
),
TP_printk("xid=0x%08x fh_hash=0x%08x status=%d",
__entry->xid, __entry->fh_hash,
__entry->status)
)
#define DEFINE_NFSD_FH_ERR_EVENT(name) \
DEFINE_EVENT(nfsd_fh_err_class, nfsd_##name, \
TP_PROTO(struct svc_rqst *rqstp, \
struct svc_fh *fhp, \
int status), \
TP_ARGS(rqstp, fhp, status))
DEFINE_NFSD_FH_ERR_EVENT(set_fh_dentry_badexport);
DEFINE_NFSD_FH_ERR_EVENT(set_fh_dentry_badhandle);
DECLARE_EVENT_CLASS(nfsd_io_class,
TP_PROTO(struct svc_rqst *rqstp,
struct svc_fh *fhp,
loff_t offset,
unsigned long len),
TP_ARGS(rqstp, fhp, offset, len),
TP_STRUCT__entry(
__field(u32, xid)
__field(u32, fh_hash)
__field(loff_t, offset)
__field(unsigned long, len)
),
TP_fast_assign(
__entry->xid = be32_to_cpu(rqstp->rq_xid);
__entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle);
__entry->offset = offset;
__entry->len = len;
),
TP_printk("xid=0x%08x fh_hash=0x%08x offset=%lld len=%lu",
__entry->xid, __entry->fh_hash,
__entry->offset, __entry->len)
)
#define DEFINE_NFSD_IO_EVENT(name) \
DEFINE_EVENT(nfsd_io_class, nfsd_##name, \
TP_PROTO(struct svc_rqst *rqstp, \
struct svc_fh *fhp, \
loff_t offset, \
unsigned long len), \
TP_ARGS(rqstp, fhp, offset, len))
DEFINE_NFSD_IO_EVENT(read_start);
DEFINE_NFSD_IO_EVENT(read_splice);
DEFINE_NFSD_IO_EVENT(read_vector);
DEFINE_NFSD_IO_EVENT(read_io_done);
DEFINE_NFSD_IO_EVENT(read_done);
DEFINE_NFSD_IO_EVENT(write_start);
DEFINE_NFSD_IO_EVENT(write_opened);
DEFINE_NFSD_IO_EVENT(write_io_done);
DEFINE_NFSD_IO_EVENT(write_done);
DECLARE_EVENT_CLASS(nfsd_err_class,
TP_PROTO(struct svc_rqst *rqstp,
struct svc_fh *fhp,
loff_t offset,
int status),
TP_ARGS(rqstp, fhp, offset, status),
TP_STRUCT__entry(
__field(u32, xid)
__field(u32, fh_hash)
__field(loff_t, offset)
__field(int, status)
),
TP_fast_assign(
__entry->xid = be32_to_cpu(rqstp->rq_xid);
__entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle);
__entry->offset = offset;
__entry->status = status;
),
TP_printk("xid=0x%08x fh_hash=0x%08x offset=%lld status=%d",
__entry->xid, __entry->fh_hash,
__entry->offset, __entry->status)
)
#define DEFINE_NFSD_ERR_EVENT(name) \
DEFINE_EVENT(nfsd_err_class, nfsd_##name, \
TP_PROTO(struct svc_rqst *rqstp, \
struct svc_fh *fhp, \
loff_t offset, \
int len), \
TP_ARGS(rqstp, fhp, offset, len))
DEFINE_NFSD_ERR_EVENT(read_err);
DEFINE_NFSD_ERR_EVENT(write_err);
#include "state.h"
#include "filecache.h"
#include "vfs.h"
DECLARE_EVENT_CLASS(nfsd_stateid_class,
TP_PROTO(stateid_t *stp),
TP_ARGS(stp),
TP_STRUCT__entry(
__field(u32, cl_boot)
__field(u32, cl_id)
__field(u32, si_id)
__field(u32, si_generation)
),
TP_fast_assign(
__entry->cl_boot = stp->si_opaque.so_clid.cl_boot;
__entry->cl_id = stp->si_opaque.so_clid.cl_id;
__entry->si_id = stp->si_opaque.so_id;
__entry->si_generation = stp->si_generation;
),
TP_printk("client %08x:%08x stateid %08x:%08x",
__entry->cl_boot,
__entry->cl_id,
__entry->si_id,
__entry->si_generation)
)
#define DEFINE_STATEID_EVENT(name) \
DEFINE_EVENT(nfsd_stateid_class, nfsd_##name, \
TP_PROTO(stateid_t *stp), \
TP_ARGS(stp))
DEFINE_STATEID_EVENT(layoutstate_alloc);
DEFINE_STATEID_EVENT(layoutstate_unhash);
DEFINE_STATEID_EVENT(layoutstate_free);
DEFINE_STATEID_EVENT(layout_get_lookup_fail);
DEFINE_STATEID_EVENT(layout_commit_lookup_fail);
DEFINE_STATEID_EVENT(layout_return_lookup_fail);
DEFINE_STATEID_EVENT(layout_recall);
DEFINE_STATEID_EVENT(layout_recall_done);
DEFINE_STATEID_EVENT(layout_recall_fail);
DEFINE_STATEID_EVENT(layout_recall_release);
TRACE_DEFINE_ENUM(NFSD_FILE_HASHED);
TRACE_DEFINE_ENUM(NFSD_FILE_PENDING);
TRACE_DEFINE_ENUM(NFSD_FILE_BREAK_READ);
TRACE_DEFINE_ENUM(NFSD_FILE_BREAK_WRITE);
TRACE_DEFINE_ENUM(NFSD_FILE_REFERENCED);
#define show_nf_flags(val) \
__print_flags(val, "|", \
{ 1 << NFSD_FILE_HASHED, "HASHED" }, \
{ 1 << NFSD_FILE_PENDING, "PENDING" }, \
{ 1 << NFSD_FILE_BREAK_READ, "BREAK_READ" }, \
{ 1 << NFSD_FILE_BREAK_WRITE, "BREAK_WRITE" }, \
{ 1 << NFSD_FILE_REFERENCED, "REFERENCED"})
/* FIXME: This should probably be fleshed out in the future. */
#define show_nf_may(val) \
__print_flags(val, "|", \
{ NFSD_MAY_READ, "READ" }, \
{ NFSD_MAY_WRITE, "WRITE" }, \
{ NFSD_MAY_NOT_BREAK_LEASE, "NOT_BREAK_LEASE" })
DECLARE_EVENT_CLASS(nfsd_file_class,
TP_PROTO(struct nfsd_file *nf),
TP_ARGS(nf),
TP_STRUCT__entry(
__field(unsigned int, nf_hashval)
__field(void *, nf_inode)
__field(int, nf_ref)
__field(unsigned long, nf_flags)
__field(unsigned char, nf_may)
__field(struct file *, nf_file)
),
TP_fast_assign(
__entry->nf_hashval = nf->nf_hashval;
__entry->nf_inode = nf->nf_inode;
__entry->nf_ref = refcount_read(&nf->nf_ref);
__entry->nf_flags = nf->nf_flags;
__entry->nf_may = nf->nf_may;
__entry->nf_file = nf->nf_file;
),
TP_printk("hash=0x%x inode=0x%p ref=%d flags=%s may=%s file=%p",
__entry->nf_hashval,
__entry->nf_inode,
__entry->nf_ref,
show_nf_flags(__entry->nf_flags),
show_nf_may(__entry->nf_may),
__entry->nf_file)
)
#define DEFINE_NFSD_FILE_EVENT(name) \
DEFINE_EVENT(nfsd_file_class, name, \
TP_PROTO(struct nfsd_file *nf), \
TP_ARGS(nf))
DEFINE_NFSD_FILE_EVENT(nfsd_file_alloc);
DEFINE_NFSD_FILE_EVENT(nfsd_file_put_final);
DEFINE_NFSD_FILE_EVENT(nfsd_file_unhash);
DEFINE_NFSD_FILE_EVENT(nfsd_file_put);
DEFINE_NFSD_FILE_EVENT(nfsd_file_unhash_and_release_locked);
TRACE_EVENT(nfsd_file_acquire,
TP_PROTO(struct svc_rqst *rqstp, unsigned int hash,
struct inode *inode, unsigned int may_flags,
struct nfsd_file *nf, __be32 status),
TP_ARGS(rqstp, hash, inode, may_flags, nf, status),
TP_STRUCT__entry(
__field(u32, xid)
__field(unsigned int, hash)
__field(void *, inode)
__field(unsigned int, may_flags)
__field(int, nf_ref)
__field(unsigned long, nf_flags)
__field(unsigned char, nf_may)
__field(struct file *, nf_file)
__field(u32, status)
),
TP_fast_assign(
__entry->xid = be32_to_cpu(rqstp->rq_xid);
__entry->hash = hash;
__entry->inode = inode;
__entry->may_flags = may_flags;
__entry->nf_ref = nf ? refcount_read(&nf->nf_ref) : 0;
__entry->nf_flags = nf ? nf->nf_flags : 0;
__entry->nf_may = nf ? nf->nf_may : 0;
__entry->nf_file = nf ? nf->nf_file : NULL;
__entry->status = be32_to_cpu(status);
),
TP_printk("xid=0x%x hash=0x%x inode=0x%p may_flags=%s ref=%d nf_flags=%s nf_may=%s nf_file=0x%p status=%u",
__entry->xid, __entry->hash, __entry->inode,
show_nf_may(__entry->may_flags), __entry->nf_ref,
show_nf_flags(__entry->nf_flags),
show_nf_may(__entry->nf_may), __entry->nf_file,
__entry->status)
);
DECLARE_EVENT_CLASS(nfsd_file_search_class,
TP_PROTO(struct inode *inode, unsigned int hash, int found),
TP_ARGS(inode, hash, found),
TP_STRUCT__entry(
__field(struct inode *, inode)
__field(unsigned int, hash)
__field(int, found)
),
TP_fast_assign(
__entry->inode = inode;
__entry->hash = hash;
__entry->found = found;
),
TP_printk("hash=0x%x inode=0x%p found=%d", __entry->hash,
__entry->inode, __entry->found)
);
#define DEFINE_NFSD_FILE_SEARCH_EVENT(name) \
DEFINE_EVENT(nfsd_file_search_class, name, \
TP_PROTO(struct inode *inode, unsigned int hash, int found), \
TP_ARGS(inode, hash, found))
DEFINE_NFSD_FILE_SEARCH_EVENT(nfsd_file_close_inode_sync);
DEFINE_NFSD_FILE_SEARCH_EVENT(nfsd_file_close_inode);
DEFINE_NFSD_FILE_SEARCH_EVENT(nfsd_file_is_cached);
TRACE_EVENT(nfsd_file_fsnotify_handle_event,
TP_PROTO(struct inode *inode, u32 mask),
TP_ARGS(inode, mask),
TP_STRUCT__entry(
__field(struct inode *, inode)
__field(unsigned int, nlink)
__field(umode_t, mode)
__field(u32, mask)
),
TP_fast_assign(
__entry->inode = inode;
__entry->nlink = inode->i_nlink;
__entry->mode = inode->i_mode;
__entry->mask = mask;
),
TP_printk("inode=0x%p nlink=%u mode=0%ho mask=0x%x", __entry->inode,
__entry->nlink, __entry->mode, __entry->mask)
);
#endif /* _NFSD_TRACE_H */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>
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