Merge commit 'v2.6.30' into for-2.6.31
[kernel.git] / fs / nfsd / nfs4xdr.c
index b820c31..d07f704 100644 (file)
@@ -83,16 +83,6 @@ check_filename(char *str, int len, __be32 err)
        return 0;
 }
 
-/*
- * START OF "GENERIC" DECODE ROUTINES.
- *   These may look a little ugly since they are imported from a "generic"
- * set of XDR encode/decode routines which are intended to be shared by
- * all of our NFSv4 implementations (OpenBSD, MacOS X...).
- *
- * If the pain of reading these is too great, it should be a straightforward
- * task to translate them into Linux-specific versions which are more
- * consistent with the style used in NFSv2/v3...
- */
 #define DECODE_HEAD                            \
        __be32 *p;                              \
        __be32 status
@@ -254,20 +244,8 @@ nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval)
        DECODE_TAIL;
 }
 
-static u32 nfsd_attrmask[] = {
-       NFSD_WRITEABLE_ATTRS_WORD0,
-       NFSD_WRITEABLE_ATTRS_WORD1,
-       NFSD_WRITEABLE_ATTRS_WORD2
-};
-
-static u32 nfsd41_ex_attrmask[] = {
-       NFSD_SUPPATTR_EXCLCREAT_WORD0,
-       NFSD_SUPPATTR_EXCLCREAT_WORD1,
-       NFSD_SUPPATTR_EXCLCREAT_WORD2
-};
-
 static __be32
-nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, u32 *writable,
+nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
                   struct iattr *iattr, struct nfs4_acl **acl)
 {
        int expected_len, len = 0;
@@ -280,18 +258,6 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, u32 *writable,
        if ((status = nfsd4_decode_bitmap(argp, bmval)))
                return status;
 
-       /*
-        * According to spec, unsupported attributes return ERR_ATTRNOTSUPP;
-        * read-only attributes return ERR_INVAL.
-        */
-       if ((bmval[0] & ~nfsd_suppattrs0(argp->minorversion)) ||
-           (bmval[1] & ~nfsd_suppattrs1(argp->minorversion)) ||
-           (bmval[2] & ~nfsd_suppattrs2(argp->minorversion)))
-               return nfserr_attrnotsupp;
-       if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) ||
-           (bmval[2] & ~writable[2]))
-               return nfserr_inval;
-
        READ_BUF(4);
        READ32(expected_len);
 
@@ -424,8 +390,11 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, u32 *writable,
                        goto xdr_error;
                }
        }
-       BUG_ON(bmval[2]);       /* no such writeable attr supported yet */
-       if (len != expected_len)
+       if (bmval[0] & ~NFSD_WRITEABLE_ATTRS_WORD0
+           || bmval[1] & ~NFSD_WRITEABLE_ATTRS_WORD1
+           || bmval[2] & ~NFSD_WRITEABLE_ATTRS_WORD2)
+               READ_BUF(expected_len - len);
+       else if (len != expected_len)
                goto xdr_error;
 
        DECODE_TAIL;
@@ -518,8 +487,8 @@ nfsd4_decode_create(struct nfsd4_compoundargs *argp, struct nfsd4_create *create
        if ((status = check_filename(create->cr_name, create->cr_namelen, nfserr_inval)))
                return status;
 
-       status = nfsd4_decode_fattr(argp, create->cr_bmval, nfsd_attrmask,
-                                   &create->cr_iattr, &create->cr_acl);
+       status = nfsd4_decode_fattr(argp, create->cr_bmval, &create->cr_iattr,
+                                   &create->cr_acl);
        if (status)
                goto out;
 
@@ -682,7 +651,7 @@ nfsd4_decode_open(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
                case NFS4_CREATE_UNCHECKED:
                case NFS4_CREATE_GUARDED:
                        status = nfsd4_decode_fattr(argp, open->op_bmval,
-                               nfsd_attrmask, &open->op_iattr, &open->op_acl);
+                               &open->op_iattr, &open->op_acl);
                        if (status)
                                goto out;
                        break;
@@ -696,8 +665,7 @@ nfsd4_decode_open(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
                        READ_BUF(8);
                        COPYMEM(open->op_verf.data, 8);
                        status = nfsd4_decode_fattr(argp, open->op_bmval,
-                               nfsd41_ex_attrmask, &open->op_iattr,
-                               &open->op_acl);
+                               &open->op_iattr, &open->op_acl);
                        if (status)
                                goto out;
                        break;
@@ -893,8 +861,8 @@ nfsd4_decode_setattr(struct nfsd4_compoundargs *argp, struct nfsd4_setattr *seta
        status = nfsd4_decode_stateid(argp, &setattr->sa_stateid);
        if (status)
                return status;
-       return nfsd4_decode_fattr(argp, setattr->sa_bmval, nfsd_attrmask,
-                                 &setattr->sa_iattr, &setattr->sa_acl);
+       return nfsd4_decode_fattr(argp, setattr->sa_bmval, &setattr->sa_iattr,
+                                 &setattr->sa_acl);
 }
 
 static __be32
@@ -1328,64 +1296,64 @@ static nfsd4_dec nfsd4_dec_ops[] = {
 };
 
 static nfsd4_dec nfsd41_dec_ops[] = {
-       [OP_ACCESS]             (nfsd4_dec)nfsd4_decode_access,
-       [OP_CLOSE]              (nfsd4_dec)nfsd4_decode_close,
-       [OP_COMMIT]             (nfsd4_dec)nfsd4_decode_commit,
-       [OP_CREATE]             (nfsd4_dec)nfsd4_decode_create,
-       [OP_DELEGPURGE]         (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_DELEGRETURN]        (nfsd4_dec)nfsd4_decode_delegreturn,
-       [OP_GETATTR]            (nfsd4_dec)nfsd4_decode_getattr,
-       [OP_GETFH]              (nfsd4_dec)nfsd4_decode_noop,
-       [OP_LINK]               (nfsd4_dec)nfsd4_decode_link,
-       [OP_LOCK]               (nfsd4_dec)nfsd4_decode_lock,
-       [OP_LOCKT]              (nfsd4_dec)nfsd4_decode_lockt,
-       [OP_LOCKU]              (nfsd4_dec)nfsd4_decode_locku,
-       [OP_LOOKUP]             (nfsd4_dec)nfsd4_decode_lookup,
-       [OP_LOOKUPP]            (nfsd4_dec)nfsd4_decode_noop,
-       [OP_NVERIFY]            (nfsd4_dec)nfsd4_decode_verify,
-       [OP_OPEN]               (nfsd4_dec)nfsd4_decode_open,
-       [OP_OPENATTR]           (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_OPEN_CONFIRM]       (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_OPEN_DOWNGRADE]     (nfsd4_dec)nfsd4_decode_open_downgrade,
-       [OP_PUTFH]              (nfsd4_dec)nfsd4_decode_putfh,
-       [OP_PUTPUBFH]           (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_PUTROOTFH]          (nfsd4_dec)nfsd4_decode_noop,
-       [OP_READ]               (nfsd4_dec)nfsd4_decode_read,
-       [OP_READDIR]            (nfsd4_dec)nfsd4_decode_readdir,
-       [OP_READLINK]           (nfsd4_dec)nfsd4_decode_noop,
-       [OP_REMOVE]             (nfsd4_dec)nfsd4_decode_remove,
-       [OP_RENAME]             (nfsd4_dec)nfsd4_decode_rename,
-       [OP_RENEW]              (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_RESTOREFH]          (nfsd4_dec)nfsd4_decode_noop,
-       [OP_SAVEFH]             (nfsd4_dec)nfsd4_decode_noop,
-       [OP_SECINFO]            (nfsd4_dec)nfsd4_decode_secinfo,
-       [OP_SETATTR]            (nfsd4_dec)nfsd4_decode_setattr,
-       [OP_SETCLIENTID]        (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_SETCLIENTID_CONFIRM](nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_VERIFY]             (nfsd4_dec)nfsd4_decode_verify,
-       [OP_WRITE]              (nfsd4_dec)nfsd4_decode_write,
-       [OP_RELEASE_LOCKOWNER]  (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_ACCESS]             (nfsd4_dec)nfsd4_decode_access,
+       [OP_CLOSE]              (nfsd4_dec)nfsd4_decode_close,
+       [OP_COMMIT]             (nfsd4_dec)nfsd4_decode_commit,
+       [OP_CREATE]             (nfsd4_dec)nfsd4_decode_create,
+       [OP_DELEGPURGE]         (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_DELEGRETURN]        (nfsd4_dec)nfsd4_decode_delegreturn,
+       [OP_GETATTR]            (nfsd4_dec)nfsd4_decode_getattr,
+       [OP_GETFH]              (nfsd4_dec)nfsd4_decode_noop,
+       [OP_LINK]               (nfsd4_dec)nfsd4_decode_link,
+       [OP_LOCK]               (nfsd4_dec)nfsd4_decode_lock,
+       [OP_LOCKT]              (nfsd4_dec)nfsd4_decode_lockt,
+       [OP_LOCKU]              (nfsd4_dec)nfsd4_decode_locku,
+       [OP_LOOKUP]             (nfsd4_dec)nfsd4_decode_lookup,
+       [OP_LOOKUPP]            (nfsd4_dec)nfsd4_decode_noop,
+       [OP_NVERIFY]            (nfsd4_dec)nfsd4_decode_verify,
+       [OP_OPEN]               (nfsd4_dec)nfsd4_decode_open,
+       [OP_OPENATTR]           (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_OPEN_CONFIRM]       (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_OPEN_DOWNGRADE]     (nfsd4_dec)nfsd4_decode_open_downgrade,
+       [OP_PUTFH]              (nfsd4_dec)nfsd4_decode_putfh,
+       [OP_PUTPUBFH]           (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_PUTROOTFH]          (nfsd4_dec)nfsd4_decode_noop,
+       [OP_READ]               (nfsd4_dec)nfsd4_decode_read,
+       [OP_READDIR]            (nfsd4_dec)nfsd4_decode_readdir,
+       [OP_READLINK]           (nfsd4_dec)nfsd4_decode_noop,
+       [OP_REMOVE]             (nfsd4_dec)nfsd4_decode_remove,
+       [OP_RENAME]             (nfsd4_dec)nfsd4_decode_rename,
+       [OP_RENEW]              (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_RESTOREFH]          (nfsd4_dec)nfsd4_decode_noop,
+       [OP_SAVEFH]             (nfsd4_dec)nfsd4_decode_noop,
+       [OP_SECINFO]            (nfsd4_dec)nfsd4_decode_secinfo,
+       [OP_SETATTR]            (nfsd4_dec)nfsd4_decode_setattr,
+       [OP_SETCLIENTID]        (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_SETCLIENTID_CONFIRM](nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_VERIFY]             (nfsd4_dec)nfsd4_decode_verify,
+       [OP_WRITE]              (nfsd4_dec)nfsd4_decode_write,
+       [OP_RELEASE_LOCKOWNER]  (nfsd4_dec)nfsd4_decode_notsupp,
 
        /* new operations for NFSv4.1 */
-       [OP_BACKCHANNEL_CTL]    (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_BIND_CONN_TO_SESSION](nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_EXCHANGE_ID]        (nfsd4_dec)nfsd4_decode_exchange_id,
-       [OP_CREATE_SESSION]     (nfsd4_dec)nfsd4_decode_create_session,
-       [OP_DESTROY_SESSION]    (nfsd4_dec)nfsd4_decode_destroy_session,
-       [OP_FREE_STATEID]       (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_GET_DIR_DELEGATION] (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_GETDEVICEINFO]      (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_GETDEVICELIST]      (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_LAYOUTCOMMIT]       (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_LAYOUTGET]          (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_LAYOUTRETURN]       (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_SECINFO_NO_NAME]    (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_SEQUENCE]           (nfsd4_dec)nfsd4_decode_sequence,
-       [OP_SET_SSV]            (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_TEST_STATEID]       (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_WANT_DELEGATION]    (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_DESTROY_CLIENTID]   (nfsd4_dec)nfsd4_decode_notsupp,
-       [OP_RECLAIM_COMPLETE]   (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_BACKCHANNEL_CTL]    (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_BIND_CONN_TO_SESSION](nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_EXCHANGE_ID]        (nfsd4_dec)nfsd4_decode_exchange_id,
+       [OP_CREATE_SESSION]     (nfsd4_dec)nfsd4_decode_create_session,
+       [OP_DESTROY_SESSION]    (nfsd4_dec)nfsd4_decode_destroy_session,
+       [OP_FREE_STATEID]       (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_GET_DIR_DELEGATION] (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_GETDEVICEINFO]      (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_GETDEVICELIST]      (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_LAYOUTCOMMIT]       (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_LAYOUTGET]          (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_LAYOUTRETURN]       (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_SECINFO_NO_NAME]    (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_SEQUENCE]           (nfsd4_dec)nfsd4_decode_sequence,
+       [OP_SET_SSV]            (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_TEST_STATEID]       (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_WANT_DELEGATION]    (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_DESTROY_CLIENTID]   (nfsd4_dec)nfsd4_decode_notsupp,
+       [OP_RECLAIM_COMPLETE]   (nfsd4_dec)nfsd4_decode_notsupp,
 };
 
 struct nfsd4_minorversion_ops {
@@ -1489,21 +1457,6 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 
        DECODE_TAIL;
 }
-/*
- * END OF "GENERIC" DECODE ROUTINES.
- */
-
-/*
- * START OF "GENERIC" ENCODE ROUTINES.
- *   These may look a little ugly since they are imported from a "generic"
- * set of XDR encode/decode routines which are intended to be shared by
- * all of our NFSv4 implementations (OpenBSD, MacOS X...).
- *
- * If the pain of reading these is too great, it should be a straightforward
- * task to translate them into Linux-specific versions which are more
- * consistent with the style used in NFSv2/v3...
- */
-#define ENCODE_HEAD              __be32 *p
 
 #define WRITE32(n)               *p++ = htonl(n)
 #define WRITE64(n)               do {                          \
@@ -1515,13 +1468,41 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
        memcpy(p, ptr, nbytes);                                 \
        p += XDR_QUADLEN(nbytes);                               \
 }} while (0)
-#define WRITECINFO(c)          do {                            \
-       *p++ = htonl(c.atomic);                                 \
-       *p++ = htonl(c.before_ctime_sec);                               \
-       *p++ = htonl(c.before_ctime_nsec);                              \
-       *p++ = htonl(c.after_ctime_sec);                                \
-       *p++ = htonl(c.after_ctime_nsec);                               \
-} while (0)
+
+static void write32(__be32 **p, u32 n)
+{
+       *(*p)++ = n;
+}
+
+static void write64(__be32 **p, u64 n)
+{
+       write32(p, (u32)(n >> 32));
+       write32(p, (u32)n);
+}
+
+static void write_change(__be32 **p, struct kstat *stat, struct inode *inode)
+{
+       if (IS_I_VERSION(inode)) {
+               write64(p, inode->i_version);
+       } else {
+               write32(p, stat->ctime.tv_sec);
+               write32(p, stat->ctime.tv_nsec);
+       }
+}
+
+static void write_cinfo(__be32 **p, struct nfsd4_change_info *c)
+{
+       write32(p, c->atomic);
+       if (c->change_supported) {
+               write64(p, c->before_change);
+               write64(p, c->after_change);
+       } else {
+               write32(p, c->before_ctime_sec);
+               write32(p, c->before_ctime_nsec);
+               write32(p, c->after_ctime_sec);
+               write32(p, c->after_ctime_nsec);
+       }
+}
 
 #define RESERVE_SPACE(nbytes)  do {                            \
        p = resp->p;                                            \
@@ -1874,16 +1855,9 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
                        WRITE32(NFS4_FH_PERSISTENT|NFS4_FH_VOL_RENAME);
        }
        if (bmval0 & FATTR4_WORD0_CHANGE) {
-               /*
-                * Note: This _must_ be consistent with the scheme for writing
-                * change_info, so any changes made here must be reflected there
-                * as well.  (See xdr4.h:set_change_info() and the WRITECINFO()
-                * macro above.)
-                */
                if ((buflen -= 8) < 0)
                        goto out_resource;
-               WRITE32(stat.ctime.tv_sec);
-               WRITE32(stat.ctime.tv_nsec);
+               write_change(&p, &stat, dentry->d_inode);
        }
        if (bmval0 & FATTR4_WORD0_SIZE) {
                if ((buflen -= 8) < 0)
@@ -2214,6 +2188,15 @@ nfsd4_encode_dirent_fattr(struct nfsd4_readdir *cd,
        dentry = lookup_one_len(name, cd->rd_fhp->fh_dentry, namlen);
        if (IS_ERR(dentry))
                return nfserrno(PTR_ERR(dentry));
+       if (!dentry->d_inode) {
+               /*
+                * nfsd_buffered_readdir drops the i_mutex between
+                * readdir and calling this callback, leaving a window
+                * where this directory entry could have gone away.
+                */
+               dput(dentry);
+               return nfserr_noent;
+       }
 
        exp_get(exp);
        /*
@@ -2276,6 +2259,7 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
        struct nfsd4_readdir *cd = container_of(ccd, struct nfsd4_readdir, common);
        int buflen;
        __be32 *p = cd->buffer;
+       __be32 *cookiep;
        __be32 nfserr = nfserr_toosmall;
 
        /* In nfsv4, "." and ".." never make it onto the wire.. */
@@ -2292,7 +2276,7 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
                goto fail;
 
        *p++ = xdr_one;                             /* mark entry present */
-       cd->offset = p;                             /* remember pointer */
+       cookiep = p;
        p = xdr_encode_hyper(p, NFS_OFFSET_MAX);    /* offset of next entry */
        p = xdr_encode_array(p, name, namlen);      /* name length & name */
 
@@ -2306,6 +2290,8 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
                goto fail;
        case nfserr_dropit:
                goto fail;
+       case nfserr_noent:
+               goto skip_entry;
        default:
                /*
                 * If the client requested the RDATTR_ERROR attribute,
@@ -2324,6 +2310,8 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
        }
        cd->buflen -= (p - cd->buffer);
        cd->buffer = p;
+       cd->offset = cookiep;
+skip_entry:
        cd->common.err = nfs_ok;
        return 0;
 fail:
@@ -2334,7 +2322,7 @@ fail:
 static void
 nfsd4_encode_stateid(struct nfsd4_compoundres *resp, stateid_t *sid)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        RESERVE_SPACE(sizeof(stateid_t));
        WRITE32(sid->si_generation);
@@ -2345,7 +2333,7 @@ nfsd4_encode_stateid(struct nfsd4_compoundres *resp, stateid_t *sid)
 static __be32
 nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_access *access)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(8);
@@ -2372,7 +2360,7 @@ nfsd4_encode_close(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_c
 static __be32
 nfsd4_encode_commit(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_commit *commit)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(8);
@@ -2385,11 +2373,11 @@ nfsd4_encode_commit(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
 static __be32
 nfsd4_encode_create(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_create *create)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(32);
-               WRITECINFO(create->cr_cinfo);
+               write_cinfo(&p, &create->cr_cinfo);
                WRITE32(2);
                WRITE32(create->cr_bmval[0]);
                WRITE32(create->cr_bmval[1]);
@@ -2421,7 +2409,7 @@ nfsd4_encode_getfh(struct nfsd4_compoundres *resp, __be32 nfserr, struct svc_fh
 {
        struct svc_fh *fhp = *fhpp;
        unsigned int len;
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                len = fhp->fh_handle.fh_size;
@@ -2440,7 +2428,7 @@ nfsd4_encode_getfh(struct nfsd4_compoundres *resp, __be32 nfserr, struct svc_fh
 static void
 nfsd4_encode_lock_denied(struct nfsd4_compoundres *resp, struct nfsd4_lock_denied *ld)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        RESERVE_SPACE(32 + XDR_LEN(ld->ld_sop ? ld->ld_sop->so_owner.len : 0));
        WRITE64(ld->ld_start);
@@ -2496,11 +2484,11 @@ nfsd4_encode_locku(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_l
 static __be32
 nfsd4_encode_link(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_link *link)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(20);
-               WRITECINFO(link->li_cinfo);
+               write_cinfo(&p, &link->li_cinfo);
                ADJUST_ARGS();
        }
        return nfserr;
@@ -2510,7 +2498,7 @@ nfsd4_encode_link(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_li
 static __be32
 nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_open *open)
 {
-       ENCODE_HEAD;
+       __be32 *p;
        ENCODE_SEQID_OP_HEAD;
 
        if (nfserr)
@@ -2518,7 +2506,7 @@ nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_op
 
        nfsd4_encode_stateid(resp, &open->op_stateid);
        RESERVE_SPACE(40);
-       WRITECINFO(open->op_cinfo);
+       write_cinfo(&p, &open->op_cinfo);
        WRITE32(open->op_rflags);
        WRITE32(2);
        WRITE32(open->op_bmval[0]);
@@ -2605,7 +2593,7 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr,
        int v, pn;
        unsigned long maxcount; 
        long len;
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (nfserr)
                return nfserr;
@@ -2667,7 +2655,7 @@ nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd
 {
        int maxcount;
        char *page;
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (nfserr)
                return nfserr;
@@ -2716,7 +2704,7 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4
        int maxcount;
        loff_t offset;
        __be32 *page, *savep, *tailbase;
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (nfserr)
                return nfserr;
@@ -2792,11 +2780,11 @@ err_no_verf:
 static __be32
 nfsd4_encode_remove(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_remove *remove)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(20);
-               WRITECINFO(remove->rm_cinfo);
+               write_cinfo(&p, &remove->rm_cinfo);
                ADJUST_ARGS();
        }
        return nfserr;
@@ -2805,12 +2793,12 @@ nfsd4_encode_remove(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
 static __be32
 nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_rename *rename)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(40);
-               WRITECINFO(rename->rn_sinfo);
-               WRITECINFO(rename->rn_tinfo);
+               write_cinfo(&p, &rename->rn_sinfo);
+               write_cinfo(&p, &rename->rn_tinfo);
                ADJUST_ARGS();
        }
        return nfserr;
@@ -2825,7 +2813,7 @@ nfsd4_encode_secinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
        u32 nflavs;
        struct exp_flavor_info *flavs;
        struct exp_flavor_info def_flavs[2];
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (nfserr)
                goto out;
@@ -2890,7 +2878,7 @@ out:
 static __be32
 nfsd4_encode_setattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_setattr *setattr)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        RESERVE_SPACE(12);
        if (nfserr) {
@@ -2910,7 +2898,7 @@ nfsd4_encode_setattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4
 static __be32
 nfsd4_encode_setclientid(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_setclientid *scd)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(8 + sizeof(nfs4_verifier));
@@ -2930,7 +2918,7 @@ nfsd4_encode_setclientid(struct nfsd4_compoundres *resp, __be32 nfserr, struct n
 static __be32
 nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_write *write)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (!nfserr) {
                RESERVE_SPACE(16);
@@ -2946,7 +2934,7 @@ static __be32
 nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, int nfserr,
                         struct nfsd4_exchange_id *exid)
 {
-       ENCODE_HEAD;
+       __be32 *p;
        char *major_id;
        char *server_scope;
        int major_id_sz;
@@ -3001,7 +2989,7 @@ static __be32
 nfsd4_encode_create_session(struct nfsd4_compoundres *resp, int nfserr,
                            struct nfsd4_create_session *sess)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (nfserr)
                return nfserr;
@@ -3057,7 +3045,7 @@ __be32
 nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr,
                      struct nfsd4_sequence *seq)
 {
-       ENCODE_HEAD;
+       __be32 *p;
 
        if (nfserr)
                return nfserr;
@@ -3205,7 +3193,7 @@ void
 nfsd4_encode_operation(struct nfsd4_compoundres *resp, struct nfsd4_op *op)
 {
        __be32 *statp;
-       ENCODE_HEAD;
+       __be32 *p;
 
        RESERVE_SPACE(8);
        WRITE32(op->opnum);
@@ -3239,7 +3227,7 @@ status:
 void
 nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op)
 {
-       ENCODE_HEAD;
+       __be32 *p;
        struct nfs4_replay *rp = op->replay;
 
        BUG_ON(!rp);
@@ -3254,10 +3242,6 @@ nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op)
        ADJUST_ARGS();
 }
 
-/*
- * END OF "GENERIC" ENCODE ROUTINES.
- */
-
 int
 nfs4svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
 {