From: NeilBrown <neilb@cse.unsw.edu.au>
tests if current_fh is the pseudo root for the client and returns
nfserr_noent if so. need to call exp_pseudoroot because different clients
can have
---
25-akpm/fs/nfsd/nfs4proc.c | 20 ++++++++++++--------
1 files changed, 12 insertions(+), 8 deletions(-)
diff -puN fs/nfsd/nfs4proc.c~knfsd-lookup_parent-fix fs/nfsd/nfs4proc.c
--- 25/fs/nfsd/nfs4proc.c~knfsd-lookup_parent-fix Mon Feb 23 16:33:47 2004
+++ 25-akpm/fs/nfsd/nfs4proc.c Mon Feb 23 16:33:47 2004
@@ -349,14 +349,18 @@ nfsd4_link(struct svc_rqst *rqstp, struc
static inline int
nfsd4_lookupp(struct svc_rqst *rqstp, struct svc_fh *current_fh)
{
- /*
- * XXX: We currently violate the spec in one small respect
- * here. If LOOKUPP is done at the root of the pseudofs,
- * the spec requires us to return NFSERR_NOENT. Personally,
- * I think that leaving the filehandle unchanged is more
- * logical, but this is an academic question anyway, since
- * no clients actually use LOOKUPP.
- */
+ struct svc_fh tmp_fh;
+ int ret;
+
+ fh_init(&tmp_fh, NFS4_FHSIZE);
+ if((ret = exp_pseudoroot(rqstp->rq_client, &tmp_fh,
+ &rqstp->rq_chandle)) != 0)
+ return ret;
+ if (tmp_fh.fh_dentry == current_fh->fh_dentry) {
+ fh_put(&tmp_fh);
+ return nfserr_noent;
+ }
+ fh_put(&tmp_fh);
return nfsd_lookup(rqstp, current_fh, "..", 2, current_fh);
}
_