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nfsd: add tracepoints for unlink events

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Observe the start of UNLINK, REMOVE, and RMDIR operations for all
NFS versions.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Jeff Layton 2025-05-03 15:59:26 -04:00 committed by Chuck Lever
parent 272e2b89b8
commit 51195263cd
2 changed files with 26 additions and 0 deletions
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24
fs/nfsd/trace.h
View File

@ -2498,6 +2498,30 @@ TRACE_EVENT(nfsd_vfs_link,
)
);
TRACE_EVENT(nfsd_vfs_unlink,
TP_PROTO(
const struct svc_rqst *rqstp,
const struct svc_fh *fhp,
const char *name,
unsigned int len
),
TP_ARGS(rqstp, fhp, name, len),
TP_STRUCT__entry(
NFSD_TRACE_PROC_CALL_FIELDS(rqstp)
__field(u32, fh_hash)
__string_len(name, name, len)
),
TP_fast_assign(
NFSD_TRACE_PROC_CALL_ASSIGNMENTS(rqstp);
__entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle);
__assign_str(name);
),
TP_printk("xid=0x%08x fh_hash=0x%08x name=%s",
__entry->xid, __entry->fh_hash,
__get_str(name)
)
);
#endif /* _NFSD_TRACE_H */
#undef TRACE_INCLUDE_PATH

2
fs/nfsd/vfs.c
View File

@ -1998,6 +1998,8 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
__be32 err;
int host_err;
trace_nfsd_vfs_unlink(rqstp, fhp, fname, flen);
err = nfserr_acces;
if (!flen || isdotent(fname, flen))
goto out;