From: J. Bruce Fields Date: Wed, 15 Jan 2014 20:17:58 +0000 (-0500) Subject: nfsd4: embed xdr_stream in nfsd4_compoundres X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4aea24b2ff7510932118ec9b06c35a11625194ea;p=openwrt%2Fstaging%2Fblogic.git nfsd4: embed xdr_stream in nfsd4_compoundres This is a mechanical transformation with no change in behavior. Reviewed-by: Christoph Hellwig Signed-off-by: J. Bruce Fields --- diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index b0e075cd6c99..6d94adf6c963 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1270,13 +1270,13 @@ nfsd4_proc_compound(struct svc_rqst *rqstp, u32 plen = 0; __be32 status; - resp->xbuf = &rqstp->rq_res; - resp->p = rqstp->rq_res.head[0].iov_base + + resp->xdr.buf = &rqstp->rq_res; + resp->xdr.p = rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len; - resp->tagp = resp->p; + resp->tagp = resp->xdr.p; /* reserve space for: taglen, tag, and opcnt */ - resp->p += 2 + XDR_QUADLEN(args->taglen); - resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; + resp->xdr.p += 2 + XDR_QUADLEN(args->taglen); + resp->xdr.end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; resp->taglen = args->taglen; resp->tag = args->tag; resp->opcnt = 0; @@ -1328,7 +1328,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp, * failed response to the next operation. If we don't * have enough room, fail with ERR_RESOURCE. */ - slack_bytes = (char *)resp->end - (char *)resp->p; + slack_bytes = (char *)resp->xdr.end - (char *)resp->xdr.p; if (slack_bytes < COMPOUND_SLACK_SPACE + COMPOUND_ERR_SLACK_SPACE) { BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 42f6c25ec8e8..14bfb5568715 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1573,10 +1573,10 @@ nfsd4_store_cache_entry(struct nfsd4_compoundres *resp) slot->sl_datalen = 0; return; } - slot->sl_datalen = (char *)resp->p - (char *)resp->cstate.datap; + slot->sl_datalen = (char *)resp->xdr.p - (char *)resp->cstate.datap; base = (char *)resp->cstate.datap - - (char *)resp->xbuf->head[0].iov_base; - if (read_bytes_from_xdr_buf(resp->xbuf, base, slot->sl_data, + (char *)resp->xdr.buf->head[0].iov_base; + if (read_bytes_from_xdr_buf(resp->xdr.buf, base, slot->sl_data, slot->sl_datalen)) WARN("%s: sessions DRC could not cache compound\n", __func__); return; @@ -1630,7 +1630,7 @@ nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp, memcpy(resp->cstate.datap, slot->sl_data, slot->sl_datalen); resp->opcnt = slot->sl_opcnt; - resp->p = resp->cstate.datap + XDR_QUADLEN(slot->sl_datalen); + resp->xdr.p = resp->cstate.datap + XDR_QUADLEN(slot->sl_datalen); status = slot->sl_status; return status; diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index e866a06b66bd..911372590ae1 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1747,10 +1747,10 @@ static void write_cinfo(__be32 **p, struct nfsd4_change_info *c) } #define RESERVE_SPACE(nbytes) do { \ - p = resp->p; \ - BUG_ON(p + XDR_QUADLEN(nbytes) > resp->end); \ + p = resp->xdr.p; \ + BUG_ON(p + XDR_QUADLEN(nbytes) > resp->xdr.end); \ } while (0) -#define ADJUST_ARGS() resp->p = p +#define ADJUST_ARGS() resp->xdr.p = p /* Encode as an array of strings the string given with components * separated @sep, escaped with esc_enter and esc_exit. @@ -2751,9 +2751,9 @@ nfsd4_encode_getattr(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4 if (nfserr) return nfserr; - buflen = resp->end - resp->p - (COMPOUND_ERR_SLACK_SPACE >> 2); + buflen = resp->xdr.end - resp->xdr.p - (COMPOUND_ERR_SLACK_SPACE >> 2); nfserr = nfsd4_encode_fattr(fhp, fhp->fh_export, fhp->fh_dentry, - &resp->p, buflen, getattr->ga_bmval, + &resp->xdr.p, buflen, getattr->ga_bmval, resp->rqstp, 0); return nfserr; } @@ -2953,7 +2953,7 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, if (nfserr) return nfserr; - if (resp->xbuf->page_len) + if (resp->xdr.buf->page_len) return nfserr_resource; RESERVE_SPACE(8); /* eof flag and byte count */ @@ -2991,18 +2991,18 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, WRITE32(eof); WRITE32(maxcount); ADJUST_ARGS(); - resp->xbuf->head[0].iov_len = (char*)p - - (char*)resp->xbuf->head[0].iov_base; - resp->xbuf->page_len = maxcount; + resp->xdr.buf->head[0].iov_len = (char *)p + - (char *)resp->xdr.buf->head[0].iov_base; + resp->xdr.buf->page_len = maxcount; /* Use rest of head for padding and remaining ops: */ - resp->xbuf->tail[0].iov_base = p; - resp->xbuf->tail[0].iov_len = 0; + resp->xdr.buf->tail[0].iov_base = p; + resp->xdr.buf->tail[0].iov_len = 0; if (maxcount&3) { RESERVE_SPACE(4); WRITE32(0); - resp->xbuf->tail[0].iov_base += maxcount&3; - resp->xbuf->tail[0].iov_len = 4 - (maxcount&3); + resp->xdr.buf->tail[0].iov_base += maxcount&3; + resp->xdr.buf->tail[0].iov_len = 4 - (maxcount&3); ADJUST_ARGS(); } return 0; @@ -3017,7 +3017,7 @@ nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd if (nfserr) return nfserr; - if (resp->xbuf->page_len) + if (resp->xdr.buf->page_len) return nfserr_resource; if (!*resp->rqstp->rq_next_page) return nfserr_resource; @@ -3041,18 +3041,18 @@ nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd WRITE32(maxcount); ADJUST_ARGS(); - resp->xbuf->head[0].iov_len = (char*)p - - (char*)resp->xbuf->head[0].iov_base; - resp->xbuf->page_len = maxcount; + resp->xdr.buf->head[0].iov_len = (char *)p + - (char *)resp->xdr.buf->head[0].iov_base; + resp->xdr.buf->page_len = maxcount; /* Use rest of head for padding and remaining ops: */ - resp->xbuf->tail[0].iov_base = p; - resp->xbuf->tail[0].iov_len = 0; + resp->xdr.buf->tail[0].iov_base = p; + resp->xdr.buf->tail[0].iov_len = 0; if (maxcount&3) { RESERVE_SPACE(4); WRITE32(0); - resp->xbuf->tail[0].iov_base += maxcount&3; - resp->xbuf->tail[0].iov_len = 4 - (maxcount&3); + resp->xdr.buf->tail[0].iov_base += maxcount&3; + resp->xdr.buf->tail[0].iov_len = 4 - (maxcount&3); ADJUST_ARGS(); } return 0; @@ -3068,7 +3068,7 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4 if (nfserr) return nfserr; - if (resp->xbuf->page_len) + if (resp->xdr.buf->page_len) return nfserr_resource; if (!*resp->rqstp->rq_next_page) return nfserr_resource; @@ -3080,7 +3080,8 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4 WRITE32(0); WRITE32(0); ADJUST_ARGS(); - resp->xbuf->head[0].iov_len = ((char*)resp->p) - (char*)resp->xbuf->head[0].iov_base; + resp->xdr.buf->head[0].iov_len = ((char *)resp->xdr.p) + - (char *)resp->xdr.buf->head[0].iov_base; tailbase = p; maxcount = PAGE_SIZE; @@ -3121,14 +3122,15 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4 p = readdir->buffer; *p++ = 0; /* no more entries */ *p++ = htonl(readdir->common.err == nfserr_eof); - resp->xbuf->page_len = ((char*)p) - + resp->xdr.buf->page_len = ((char *)p) - (char*)page_address(*(resp->rqstp->rq_next_page-1)); /* Use rest of head for padding and remaining ops: */ - resp->xbuf->tail[0].iov_base = tailbase; - resp->xbuf->tail[0].iov_len = 0; - resp->p = resp->xbuf->tail[0].iov_base; - resp->end = resp->p + (PAGE_SIZE - resp->xbuf->head[0].iov_len)/4; + resp->xdr.buf->tail[0].iov_base = tailbase; + resp->xdr.buf->tail[0].iov_len = 0; + resp->xdr.p = resp->xdr.buf->tail[0].iov_base; + resp->xdr.end = resp->xdr.p + + (PAGE_SIZE - resp->xdr.buf->head[0].iov_len)/4; return 0; err_no_verf: @@ -3587,10 +3589,10 @@ __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *resp, u32 pad) session = resp->cstate.session; if (xb->page_len == 0) { - length = (char *)resp->p - (char *)xb->head[0].iov_base + pad; + length = (char *)resp->xdr.p - (char *)xb->head[0].iov_base + pad; } else { if (xb->tail[0].iov_base && xb->tail[0].iov_len > 0) - tlen = (char *)resp->p - (char *)xb->tail[0].iov_base; + tlen = (char *)resp->xdr.p - (char *)xb->tail[0].iov_base; length = xb->head[0].iov_len + xb->page_len + tlen + pad; } @@ -3629,7 +3631,8 @@ nfsd4_encode_operation(struct nfsd4_compoundres *resp, struct nfsd4_op *op) op->status = nfsd4_check_resp_size(resp, 0); if (so) { so->so_replay.rp_status = op->status; - so->so_replay.rp_buflen = (char *)resp->p - (char *)(statp+1); + so->so_replay.rp_buflen = (char *)resp->xdr.p + - (char *)(statp+1); memcpy(so->so_replay.rp_buf, statp+1, so->so_replay.rp_buflen); } status: @@ -3731,7 +3734,7 @@ nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compo iov = &rqstp->rq_res.tail[0]; else iov = &rqstp->rq_res.head[0]; - iov->iov_len = ((char*)resp->p) - (char*)iov->iov_base; + iov->iov_len = ((char *)resp->xdr.p) - (char *)iov->iov_base; BUG_ON(iov->iov_len > PAGE_SIZE); if (nfsd4_has_session(cs)) { struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index 5ea7df305083..6884d70363b5 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -506,9 +506,7 @@ struct nfsd4_compoundargs { struct nfsd4_compoundres { /* scratch variables for XDR encode */ - __be32 * p; - __be32 * end; - struct xdr_buf * xbuf; + struct xdr_stream xdr; struct svc_rqst * rqstp; u32 taglen;