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| author |   Jeff Layton <jlayton@kernel.org> | 2025-05-03 15:59:24 -0400 |
|---|---|---|
| committer |   Chuck Lever <chuck.lever@oracle.com> | 2025-05-11 19:48:32 -0400 |
| commit | 2344b72302ac11efde40d64a5bc69e60c4f5ed87 (patch) | |
| tree | 8bf3e6514103a413c2b0e9f6c0113632c34dec59 /fs/nfsd | |
| parent | nfsd: add nfsd_vfs_create tracepoints (diff) | |
| download | wireguard-linux-2344b72302ac11efde40d64a5bc69e60c4f5ed87.tar.xz wireguard-linux-2344b72302ac11efde40d64a5bc69e60c4f5ed87.zip | |
nfsd: add tracepoint to nfsd_symlink
Observe the start of SYMLINK operations for all NFS versions.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/trace.h | 27 | ||||
| -rw-r--r-- | fs/nfsd/vfs.c | 2 |
2 files changed, 29 insertions, 0 deletions
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index a71d605fd7b7..e347cdaaa732 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -2444,6 +2444,33 @@ TRACE_EVENT(nfsd_vfs_create, ) ); +TRACE_EVENT(nfsd_vfs_symlink, + TP_PROTO( + const struct svc_rqst *rqstp, + const struct svc_fh *fhp, + const char *name, + unsigned int namelen, + const char *target + ), + TP_ARGS(rqstp, fhp, name, namelen, target), + TP_STRUCT__entry( + NFSD_TRACE_PROC_CALL_FIELDS(rqstp) + __field(u32, fh_hash) + __string_len(name, name, namelen) + __string(target, target) + ), + TP_fast_assign( + NFSD_TRACE_PROC_CALL_ASSIGNMENTS(rqstp); + __entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle); + __assign_str(name); + __assign_str(target); + ), + TP_printk("xid=0x%08x fh_hash=0x%08x name=%s target=%s", + __entry->xid, __entry->fh_hash, + __get_str(name), __get_str(target) + ) +); + #endif /* _NFSD_TRACE_H */ #undef TRACE_INCLUDE_PATH diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index cc0efc47dc25..ecd453b260b6 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1651,6 +1651,8 @@ nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *fhp, __be32 err, cerr; int host_err; + trace_nfsd_vfs_symlink(rqstp, fhp, fname, flen, path); + err = nfserr_noent; if (!flen || path[0] == '\0') goto out; |