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nfsd: add tracepoint for getattr and statfs events 

There isn't a common helper for getattrs, so add these into the
protocol-specific helpers.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
pull/1112/head
Jeff Layton 2025-05-03 15:59:29 -04:00 committed by Chuck Lever
parent a91bfc4571
commit 0d885f7e79
5 changed files with 38 additions and 0 deletions
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2
fs/nfsd/nfs3proc.c
View File

@ -70,6 +70,8 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp)
struct nfsd_fhandle *argp = rqstp->rq_argp;
struct nfsd3_attrstat *resp = rqstp->rq_resp;
trace_nfsd_vfs_getattr(rqstp, &argp->fh);
dprintk("nfsd: GETATTR(3) %s\n",
SVCFH_fmt(&argp->fh));

2
fs/nfsd/nfs4proc.c
View File

@ -876,6 +876,8 @@ nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_getattr *getattr = &u->getattr;
__be32 status;
trace_nfsd_vfs_getattr(rqstp, &cstate->current_fh);
status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
if (status)
return status;

2
fs/nfsd/nfsproc.c
View File

@ -55,6 +55,8 @@ nfsd_proc_getattr(struct svc_rqst *rqstp)
struct nfsd_fhandle *argp = rqstp->rq_argp;
struct nfsd_attrstat *resp = rqstp->rq_resp;
trace_nfsd_vfs_getattr(rqstp, &argp->fh);
dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
fh_copy(&resp->fh, &argp->fh);

30
fs/nfsd/trace.h
View File

@ -2579,6 +2579,36 @@ TRACE_EVENT(nfsd_vfs_readdir,
)
);
DECLARE_EVENT_CLASS(nfsd_vfs_getattr_class,
TP_PROTO(
const struct svc_rqst *rqstp,
const struct svc_fh *fhp
),
TP_ARGS(rqstp, fhp),
TP_STRUCT__entry(
NFSD_TRACE_PROC_CALL_FIELDS(rqstp)
__field(u32, fh_hash)
),
TP_fast_assign(
NFSD_TRACE_PROC_CALL_ASSIGNMENTS(rqstp);
__entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle);
),
TP_printk("xid=0x%08x fh_hash=0x%08x",
__entry->xid, __entry->fh_hash
)
);
#define DEFINE_NFSD_VFS_GETATTR_EVENT(__name) \
DEFINE_EVENT(nfsd_vfs_getattr_class, __name, \
TP_PROTO( \
const struct svc_rqst *rqstp, \
const struct svc_fh *fhp \
), \
TP_ARGS(rqstp, fhp))
DEFINE_NFSD_VFS_GETATTR_EVENT(nfsd_vfs_getattr);
DEFINE_NFSD_VFS_GETATTR_EVENT(nfsd_vfs_statfs);
#endif /* _NFSD_TRACE_H */
#undef TRACE_INCLUDE_PATH

2
fs/nfsd/vfs.c
View File

@ -2290,6 +2290,8 @@ nfsd_statfs(struct svc_rqst *rqstp, struct svc_fh *fhp, struct kstatfs *stat, in
{
__be32 err;
trace_nfsd_vfs_statfs(rqstp, fhp);
err = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP | access);
if (!err) {
struct path path = {