diff options
| -rw-r--r-- | fs/nfsd/nfs3xdr.c | 58 |
1 files changed, 44 insertions, 14 deletions
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index e159e4557428..e4a569e7216d 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -18,6 +18,13 @@ /* + * Force construction of an empty post-op attr + */ +static const struct svc_fh nfs3svc_null_fh = { + .fh_no_wcc = true, +}; + +/* * Mapping of S_IF* types to NFS file types */ static const u32 nfs3_ftypes[] = { @@ -1392,27 +1399,50 @@ nfs3svc_encode_entry_plus(void *cd, const char *name, return encode_entry(cd, name, namlen, offset, ino, d_type, 1); } +static bool +svcxdr_encode_fsstat3resok(struct xdr_stream *xdr, + const struct nfsd3_fsstatres *resp) +{ + const struct kstatfs *s = &resp->stats; + u64 bs = s->f_bsize; + __be32 *p; + + p = xdr_reserve_space(xdr, XDR_UNIT * 13); + if (!p) + return false; + p = xdr_encode_hyper(p, bs * s->f_blocks); /* total bytes */ + p = xdr_encode_hyper(p, bs * s->f_bfree); /* free bytes */ + p = xdr_encode_hyper(p, bs * s->f_bavail); /* user available bytes */ + p = xdr_encode_hyper(p, s->f_files); /* total inodes */ + p = xdr_encode_hyper(p, s->f_ffree); /* free inodes */ + p = xdr_encode_hyper(p, s->f_ffree); /* user available inodes */ + *p = cpu_to_be32(resp->invarsec); /* mean unchanged time */ + + return true; +} + /* FSSTAT */ int nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, __be32 *p) { + struct xdr_stream *xdr = &rqstp->rq_res_stream; struct nfsd3_fsstatres *resp = rqstp->rq_resp; - struct kstatfs *s = &resp->stats; - u64 bs = s->f_bsize; - *p++ = resp->status; - *p++ = xdr_zero; /* no post_op_attr */ - - if (resp->status == 0) { - p = xdr_encode_hyper(p, bs * s->f_blocks); /* total bytes */ - p = xdr_encode_hyper(p, bs * s->f_bfree); /* free bytes */ - p = xdr_encode_hyper(p, bs * s->f_bavail); /* user available bytes */ - p = xdr_encode_hyper(p, s->f_files); /* total inodes */ - p = xdr_encode_hyper(p, s->f_ffree); /* free inodes */ - p = xdr_encode_hyper(p, s->f_ffree); /* user available inodes */ - *p++ = htonl(resp->invarsec); /* mean unchanged time */ + if (!svcxdr_encode_nfsstat3(xdr, resp->status)) + return 0; + switch (resp->status) { + case nfs_ok: + if (!svcxdr_encode_post_op_attr(rqstp, xdr, &nfs3svc_null_fh)) + return 0; + if (!svcxdr_encode_fsstat3resok(xdr, resp)) + return 0; + break; + default: + if (!svcxdr_encode_post_op_attr(rqstp, xdr, &nfs3svc_null_fh)) + return 0; } - return xdr_ressize_check(rqstp, p); + + return 1; } /* FSINFO */ |