diff options
-rw-r--r-- | fs/nfsd/nfs2acl.c | 75 | ||||
-rw-r--r-- | fs/nfsd/nfsproc.c | 185 | ||||
-rw-r--r-- | fs/nfsd/nfssvc.c | 8 | ||||
-rw-r--r-- | fs/nfsd/nfsxdr.c | 18 | ||||
-rw-r--r-- | fs/nfsd/xdr.h | 7 |
5 files changed, 171 insertions, 122 deletions
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c index 3c8b9250dc4a..6f46afdb0616 100644 --- a/fs/nfsd/nfs2acl.c +++ b/fs/nfsd/nfs2acl.c @@ -14,7 +14,6 @@ #include "vfs.h" #define NFSDDBG_FACILITY NFSDDBG_PROC -#define RETURN_STATUS(st) { resp->status = (st); return (st); } /* * NULL call. @@ -35,24 +34,25 @@ static __be32 nfsacld_proc_getacl(struct svc_rqst *rqstp) struct posix_acl *acl; struct inode *inode; svc_fh *fh; - __be32 nfserr = 0; dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh)); fh = fh_copy(&resp->fh, &argp->fh); - nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP); - if (nfserr) - RETURN_STATUS(nfserr); + resp->status = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP); + if (resp->status != nfs_ok) + goto out; inode = d_inode(fh->fh_dentry); - if (argp->mask & ~NFS_ACL_MASK) - RETURN_STATUS(nfserr_inval); + if (argp->mask & ~NFS_ACL_MASK) { + resp->status = nfserr_inval; + goto out; + } resp->mask = argp->mask; - nfserr = fh_getattr(fh, &resp->stat); - if (nfserr) - RETURN_STATUS(nfserr); + resp->status = fh_getattr(fh, &resp->stat); + if (resp->status != nfs_ok) + goto out; if (resp->mask & (NFS_ACL|NFS_ACLCNT)) { acl = get_acl(inode, ACL_TYPE_ACCESS); @@ -61,7 +61,7 @@ static __be32 nfsacld_proc_getacl(struct svc_rqst *rqstp) acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL); } if (IS_ERR(acl)) { - nfserr = nfserrno(PTR_ERR(acl)); + resp->status = nfserrno(PTR_ERR(acl)); goto fail; } resp->acl_access = acl; @@ -71,19 +71,20 @@ static __be32 nfsacld_proc_getacl(struct svc_rqst *rqstp) of a non-directory! */ acl = get_acl(inode, ACL_TYPE_DEFAULT); if (IS_ERR(acl)) { - nfserr = nfserrno(PTR_ERR(acl)); + resp->status = nfserrno(PTR_ERR(acl)); goto fail; } resp->acl_default = acl; } /* resp->acl_{access,default} are released in nfssvc_release_getacl. */ - RETURN_STATUS(0); +out: + return resp->status; fail: posix_acl_release(resp->acl_access); posix_acl_release(resp->acl_default); - RETURN_STATUS(nfserr); + goto out; } /* @@ -95,14 +96,13 @@ static __be32 nfsacld_proc_setacl(struct svc_rqst *rqstp) struct nfsd_attrstat *resp = rqstp->rq_resp; struct inode *inode; svc_fh *fh; - __be32 nfserr = 0; int error; dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh)); fh = fh_copy(&resp->fh, &argp->fh); - nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR); - if (nfserr) + resp->status = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR); + if (resp->status != nfs_ok) goto out; inode = d_inode(fh->fh_dentry); @@ -124,19 +124,20 @@ static __be32 nfsacld_proc_setacl(struct svc_rqst *rqstp) fh_drop_write(fh); - nfserr = fh_getattr(fh, &resp->stat); + resp->status = fh_getattr(fh, &resp->stat); out: /* argp->acl_{access,default} may have been allocated in nfssvc_decode_setaclargs. */ posix_acl_release(argp->acl_access); posix_acl_release(argp->acl_default); - return nfserr; + return resp->status; + out_drop_lock: fh_unlock(fh); fh_drop_write(fh); out_errno: - nfserr = nfserrno(error); + resp->status = nfserrno(error); goto out; } @@ -147,15 +148,16 @@ static __be32 nfsacld_proc_getattr(struct svc_rqst *rqstp) { struct nfsd_fhandle *argp = rqstp->rq_argp; struct nfsd_attrstat *resp = rqstp->rq_resp; - __be32 nfserr; + dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh)); fh_copy(&resp->fh, &argp->fh); - nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP); - if (nfserr) - return nfserr; - nfserr = fh_getattr(&resp->fh, &resp->stat); - return nfserr; + resp->status = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_NOP); + if (resp->status != nfs_ok) + goto out; + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* @@ -165,7 +167,6 @@ static __be32 nfsacld_proc_access(struct svc_rqst *rqstp) { struct nfsd3_accessargs *argp = rqstp->rq_argp; struct nfsd3_accessres *resp = rqstp->rq_resp; - __be32 nfserr; dprintk("nfsd: ACCESS(2acl) %s 0x%x\n", SVCFH_fmt(&argp->fh), @@ -173,11 +174,12 @@ static __be32 nfsacld_proc_access(struct svc_rqst *rqstp) fh_copy(&resp->fh, &argp->fh); resp->access = argp->access; - nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL); - if (nfserr) - return nfserr; - nfserr = fh_getattr(&resp->fh, &resp->stat); - return nfserr; + resp->status = nfsd_access(rqstp, &resp->fh, &resp->access, NULL); + if (resp->status != nfs_ok) + goto out; + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* @@ -273,6 +275,9 @@ static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p) int n; int w; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + /* * Since this is version 2, the check for nfserr in * nfsd_dispatch actually ensures the following cannot happen. @@ -312,6 +317,9 @@ static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p) { struct nfsd_attrstat *resp = rqstp->rq_resp; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat); return xdr_ressize_check(rqstp, p); } @@ -321,6 +329,9 @@ static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p) { struct nfsd3_accessres *resp = rqstp->rq_resp; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat); *p++ = htonl(resp->access); return xdr_ressize_check(rqstp, p); diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c index c349e1dac3ff..526170319ecf 100644 --- a/fs/nfsd/nfsproc.c +++ b/fs/nfsd/nfsproc.c @@ -13,25 +13,12 @@ #define NFSDDBG_FACILITY NFSDDBG_PROC - static __be32 nfsd_proc_null(struct svc_rqst *rqstp) { return nfs_ok; } -static __be32 -nfsd_return_attrs(__be32 err, struct nfsd_attrstat *resp) -{ - if (err) return err; - return fh_getattr(&resp->fh, &resp->stat); -} -static __be32 -nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp) -{ - if (err) return err; - return fh_getattr(&resp->fh, &resp->stat); -} /* * Get a file's attributes * N.B. After this call resp->fh needs an fh_put @@ -41,13 +28,17 @@ nfsd_proc_getattr(struct svc_rqst *rqstp) { struct nfsd_fhandle *argp = rqstp->rq_argp; struct nfsd_attrstat *resp = rqstp->rq_resp; - __be32 nfserr; + dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh)); fh_copy(&resp->fh, &argp->fh); - nfserr = fh_verify(rqstp, &resp->fh, 0, - NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT); - return nfsd_return_attrs(nfserr, resp); + resp->status = fh_verify(rqstp, &resp->fh, 0, + NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT); + if (resp->status != nfs_ok) + goto out; + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* @@ -61,7 +52,6 @@ nfsd_proc_setattr(struct svc_rqst *rqstp) struct nfsd_attrstat *resp = rqstp->rq_resp; struct iattr *iap = &argp->attrs; struct svc_fh *fhp; - __be32 nfserr; dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n", SVCFH_fmt(&argp->fh), @@ -93,9 +83,9 @@ nfsd_proc_setattr(struct svc_rqst *rqstp) */ time64_t delta = iap->ia_atime.tv_sec - ktime_get_real_seconds(); - nfserr = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP); - if (nfserr) - goto done; + resp->status = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP); + if (resp->status != nfs_ok) + return resp->status; if (delta < 0) delta = -delta; @@ -110,9 +100,13 @@ nfsd_proc_setattr(struct svc_rqst *rqstp) } } - nfserr = nfsd_setattr(rqstp, fhp, iap, 0, (time64_t)0); -done: - return nfsd_return_attrs(nfserr, resp); + resp->status = nfsd_setattr(rqstp, fhp, iap, 0, (time64_t)0); + if (resp->status != nfs_ok) + goto out; + + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* Obsolete, replaced by MNTPROC_MNT. */ @@ -133,17 +127,20 @@ nfsd_proc_lookup(struct svc_rqst *rqstp) { struct nfsd_diropargs *argp = rqstp->rq_argp; struct nfsd_diropres *resp = rqstp->rq_resp; - __be32 nfserr; dprintk("nfsd: LOOKUP %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name); fh_init(&resp->fh, NFS_FHSIZE); - nfserr = nfsd_lookup(rqstp, &argp->fh, argp->name, argp->len, - &resp->fh); - + resp->status = nfsd_lookup(rqstp, &argp->fh, argp->name, argp->len, + &resp->fh); fh_put(&argp->fh); - return nfsd_return_dirop(nfserr, resp); + if (resp->status != nfs_ok) + goto out; + + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* @@ -154,16 +151,15 @@ nfsd_proc_readlink(struct svc_rqst *rqstp) { struct nfsd_readlinkargs *argp = rqstp->rq_argp; struct nfsd_readlinkres *resp = rqstp->rq_resp; - __be32 nfserr; dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh)); /* Read the symlink. */ resp->len = NFS_MAXPATHLEN; - nfserr = nfsd_readlink(rqstp, &argp->fh, argp->buffer, &resp->len); + resp->status = nfsd_readlink(rqstp, &argp->fh, argp->buffer, &resp->len); fh_put(&argp->fh); - return nfserr; + return resp->status; } /* @@ -175,7 +171,6 @@ nfsd_proc_read(struct svc_rqst *rqstp) { struct nfsd_readargs *argp = rqstp->rq_argp; struct nfsd_readres *resp = rqstp->rq_resp; - __be32 nfserr; u32 eof; dprintk("nfsd: READ %s %d bytes at %d\n", @@ -197,14 +192,17 @@ nfsd_proc_read(struct svc_rqst *rqstp) svc_reserve_auth(rqstp, (19<<2) + argp->count + 4); resp->count = argp->count; - nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh), - argp->offset, - rqstp->rq_vec, argp->vlen, - &resp->count, - &eof); - - if (nfserr) return nfserr; - return fh_getattr(&resp->fh, &resp->stat); + resp->status = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh), + argp->offset, + rqstp->rq_vec, argp->vlen, + &resp->count, + &eof); + if (resp->status != nfs_ok) + goto out; + + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* Reserved */ @@ -223,7 +221,6 @@ nfsd_proc_write(struct svc_rqst *rqstp) { struct nfsd_writeargs *argp = rqstp->rq_argp; struct nfsd_attrstat *resp = rqstp->rq_resp; - __be32 nfserr; unsigned long cnt = argp->len; unsigned int nvecs; @@ -233,12 +230,20 @@ nfsd_proc_write(struct svc_rqst *rqstp) nvecs = svc_fill_write_vector(rqstp, rqstp->rq_arg.pages, &argp->first, cnt); - if (!nvecs) - return nfserr_io; - nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), - argp->offset, rqstp->rq_vec, nvecs, - &cnt, NFS_DATA_SYNC, NULL); - return nfsd_return_attrs(nfserr, resp); + if (!nvecs) { + resp->status = nfserr_io; + goto out; + } + + resp->status = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), + argp->offset, rqstp->rq_vec, nvecs, + &cnt, NFS_DATA_SYNC, NULL); + if (resp->status != nfs_ok) + goto out; + + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* @@ -258,7 +263,6 @@ nfsd_proc_create(struct svc_rqst *rqstp) struct inode *inode; struct dentry *dchild; int type, mode; - __be32 nfserr; int hosterr; dev_t rdev = 0, wanted = new_decode_dev(attr->ia_size); @@ -266,40 +270,40 @@ nfsd_proc_create(struct svc_rqst *rqstp) SVCFH_fmt(dirfhp), argp->len, argp->name); /* First verify the parent file handle */ - nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_EXEC); - if (nfserr) + resp->status = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_EXEC); + if (resp->status != nfs_ok) goto done; /* must fh_put dirfhp even on error */ /* Check for NFSD_MAY_WRITE in nfsd_create if necessary */ - nfserr = nfserr_exist; + resp->status = nfserr_exist; if (isdotent(argp->name, argp->len)) goto done; hosterr = fh_want_write(dirfhp); if (hosterr) { - nfserr = nfserrno(hosterr); + resp->status = nfserrno(hosterr); goto done; } fh_lock_nested(dirfhp, I_MUTEX_PARENT); dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len); if (IS_ERR(dchild)) { - nfserr = nfserrno(PTR_ERR(dchild)); + resp->status = nfserrno(PTR_ERR(dchild)); goto out_unlock; } fh_init(newfhp, NFS_FHSIZE); - nfserr = fh_compose(newfhp, dirfhp->fh_export, dchild, dirfhp); - if (!nfserr && d_really_is_negative(dchild)) - nfserr = nfserr_noent; + resp->status = fh_compose(newfhp, dirfhp->fh_export, dchild, dirfhp); + if (!resp->status && d_really_is_negative(dchild)) + resp->status = nfserr_noent; dput(dchild); - if (nfserr) { - if (nfserr != nfserr_noent) + if (resp->status) { + if (resp->status != nfserr_noent) goto out_unlock; /* * If the new file handle wasn't verified, we can't tell * whether the file exists or not. Time to bail ... */ - nfserr = nfserr_acces; + resp->status = nfserr_acces; if (!newfhp->fh_dentry) { printk(KERN_WARNING "nfsd_proc_create: file handle not verified\n"); @@ -332,11 +336,11 @@ nfsd_proc_create(struct svc_rqst *rqstp) * echo thing > device-special-file-or-pipe * by doing a CREATE with type==0 */ - nfserr = nfsd_permission(rqstp, + resp->status = nfsd_permission(rqstp, newfhp->fh_export, newfhp->fh_dentry, NFSD_MAY_WRITE|NFSD_MAY_LOCAL_ACCESS); - if (nfserr && nfserr != nfserr_rofs) + if (resp->status && resp->status != nfserr_rofs) goto out_unlock; } } else @@ -372,16 +376,17 @@ nfsd_proc_create(struct svc_rqst *rqstp) attr->ia_valid &= ~ATTR_SIZE; /* Make sure the type and device matches */ - nfserr = nfserr_exist; + resp->status = nfserr_exist; if (inode && type != (inode->i_mode & S_IFMT)) goto out_unlock; } - nfserr = 0; + resp->status = nfs_ok; if (!inode) { /* File doesn't exist. Create it and set attrs */ - nfserr = nfsd_create_locked(rqstp, dirfhp, argp->name, - argp->len, attr, type, rdev, newfhp); + resp->status = nfsd_create_locked(rqstp, dirfhp, argp->name, + argp->len, attr, type, rdev, + newfhp); } else if (type == S_IFREG) { dprintk("nfsd: existing %s, valid=%x, size=%ld\n", argp->name, attr->ia_valid, (long) attr->ia_size); @@ -391,7 +396,8 @@ nfsd_proc_create(struct svc_rqst *rqstp) */ attr->ia_valid &= ATTR_SIZE; if (attr->ia_valid) - nfserr = nfsd_setattr(rqstp, newfhp, attr, 0, (time64_t)0); + resp->status = nfsd_setattr(rqstp, newfhp, attr, 0, + (time64_t)0); } out_unlock: @@ -400,7 +406,11 @@ out_unlock: fh_drop_write(dirfhp); done: fh_put(dirfhp); - return nfsd_return_dirop(nfserr, resp); + if (resp->status != nfs_ok) + goto out; + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } static __be32 @@ -463,14 +473,18 @@ nfsd_proc_symlink(struct svc_rqst *rqstp) struct svc_fh newfh; __be32 nfserr; - if (argp->tlen > NFS_MAXPATHLEN) - return nfserr_nametoolong; + if (argp->tlen > NFS_MAXPATHLEN) { + nfserr = nfserr_nametoolong; + goto out; + } argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first, page_address(rqstp->rq_arg.pages[0]), argp->tlen); - if (IS_ERR(argp->tname)) - return nfserrno(PTR_ERR(argp->tname)); + if (IS_ERR(argp->tname)) { + nfserr = nfserrno(PTR_ERR(argp->tname)); + goto out; + } dprintk("nfsd: SYMLINK %s %.*s -> %.*s\n", SVCFH_fmt(&argp->ffh), argp->flen, argp->fname, @@ -483,6 +497,7 @@ nfsd_proc_symlink(struct svc_rqst *rqstp) kfree(argp->tname); fh_put(&argp->ffh); fh_put(&newfh); +out: return nfserr; } @@ -495,7 +510,6 @@ nfsd_proc_mkdir(struct svc_rqst *rqstp) { struct nfsd_createargs *argp = rqstp->rq_argp; struct nfsd_diropres *resp = rqstp->rq_resp; - __be32 nfserr; dprintk("nfsd: MKDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name); @@ -506,10 +520,15 @@ nfsd_proc_mkdir(struct svc_rqst *rqstp) argp->attrs.ia_valid &= ~ATTR_SIZE; fh_init(&resp->fh, NFS_FHSIZE); - nfserr = nfsd_create(rqstp, &argp->fh, argp->name, argp->len, - &argp->attrs, S_IFDIR, 0, &resp->fh); + resp->status = nfsd_create(rqstp, &argp->fh, argp->name, argp->len, + &argp->attrs, S_IFDIR, 0, &resp->fh); fh_put(&argp->fh); - return nfsd_return_dirop(nfserr, resp); + if (resp->status != nfs_ok) + goto out; + + resp->status = fh_getattr(&resp->fh, &resp->stat); +out: + return resp->status; } /* @@ -537,7 +556,6 @@ nfsd_proc_readdir(struct svc_rqst *rqstp) struct nfsd_readdirargs *argp = rqstp->rq_argp; struct nfsd_readdirres *resp = rqstp->rq_resp; int count; - __be32 nfserr; loff_t offset; dprintk("nfsd: READDIR %s %d bytes at %d\n", @@ -558,15 +576,15 @@ nfsd_proc_readdir(struct svc_rqst *rqstp) resp->common.err = nfs_ok; /* Read directory and encode entries on the fly */ offset = argp->cookie; - nfserr = nfsd_readdir(rqstp, &argp->fh, &offset, - &resp->common, nfssvc_encode_entry); + resp->status = nfsd_readdir(rqstp, &argp->fh, &offset, + &resp->common, nfssvc_encode_entry); resp->count = resp->buffer - argp->buffer; if (resp->offset) *resp->offset = htonl(offset); fh_put(&argp->fh); - return nfserr; + return resp->status; } /* @@ -577,14 +595,13 @@ nfsd_proc_statfs(struct svc_rqst *rqstp) { struct nfsd_fhandle *argp = rqstp->rq_argp; struct nfsd_statfsres *resp = rqstp->rq_resp; - __be32 nfserr; dprintk("nfsd: STATFS %s\n", SVCFH_fmt(&argp->fh)); - nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats, - NFSD_MAY_BYPASS_GSS_ON_ROOT); + resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, + NFSD_MAY_BYPASS_GSS_ON_ROOT); fh_put(&argp->fh); - return nfserr; + return resp->status; } /* diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index e793344227c9..4aa8db879ca2 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -1056,12 +1056,8 @@ int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp) if (rqstp->rq_proc != 0) *nfserrp++ = nfserr; - /* - * For NFSv2, additional info is never returned in case of an error. - */ - if (!(nfserr && rqstp->rq_vers == 2)) - if (!proc->pc_encode(rqstp, nfserrp)) - goto out_encode_err; + if (!proc->pc_encode(rqstp, nfserrp)) + goto out_encode_err; nfsd_cache_update(rqstp, rqstp->rq_cachetype, statp + 1); out_cached_reply: diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c index 39c004ec7d85..952e71c95d4e 100644 --- a/fs/nfsd/nfsxdr.c +++ b/fs/nfsd/nfsxdr.c @@ -434,6 +434,9 @@ nfssvc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p) { struct nfsd_attrstat *resp = rqstp->rq_resp; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + p = encode_fattr(rqstp, p, &resp->fh, &resp->stat); return xdr_ressize_check(rqstp, p); } @@ -443,6 +446,9 @@ nfssvc_encode_diropres(struct svc_rqst *rqstp, __be32 *p) { struct nfsd_diropres *resp = rqstp->rq_resp; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + p = encode_fh(p, &resp->fh); p = encode_fattr(rqstp, p, &resp->fh, &resp->stat); return xdr_ressize_check(rqstp, p); @@ -453,6 +459,9 @@ nfssvc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p) { struct nfsd_readlinkres *resp = rqstp->rq_resp; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + *p++ = htonl(resp->len); xdr_ressize_check(rqstp, p); rqstp->rq_res.page_len = resp->len; @@ -470,6 +479,9 @@ nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p) { struct nfsd_readres *resp = rqstp->rq_resp; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + p = encode_fattr(rqstp, p, &resp->fh, &resp->stat); *p++ = htonl(resp->count); xdr_ressize_check(rqstp, p); @@ -490,6 +502,9 @@ nfssvc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p) { struct nfsd_readdirres *resp = rqstp->rq_resp; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + xdr_ressize_check(rqstp, p); p = resp->buffer; *p++ = 0; /* no more entries */ @@ -505,6 +520,9 @@ nfssvc_encode_statfsres(struct svc_rqst *rqstp, __be32 *p) struct nfsd_statfsres *resp = rqstp->rq_resp; struct kstatfs *stat = &resp->stats; + if (resp->status != nfs_ok) + return xdr_ressize_check(rqstp, p); + *p++ = htonl(NFSSVC_MAXBLKSIZE_V2); /* max transfer size */ *p++ = htonl(stat->f_bsize); *p++ = htonl(stat->f_blocks); diff --git a/fs/nfsd/xdr.h b/fs/nfsd/xdr.h index 3d3e16d48268..17221931815f 100644 --- a/fs/nfsd/xdr.h +++ b/fs/nfsd/xdr.h @@ -83,26 +83,32 @@ struct nfsd_readdirargs { }; struct nfsd_attrstat { + __be32 status; struct svc_fh fh; struct kstat stat; }; struct nfsd_diropres { + __be32 status; struct svc_fh fh; struct kstat stat; }; struct nfsd_readlinkres { + __be32 status; int len; }; struct nfsd_readres { + __be32 status; struct svc_fh fh; unsigned long count; struct kstat stat; }; struct nfsd_readdirres { + __be32 status; + int count; struct readdir_cd common; @@ -112,6 +118,7 @@ struct nfsd_readdirres { }; struct nfsd_statfsres { + __be32 status; struct kstatfs stats; }; |