diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2012-12-10 18:01:37 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-12-17 22:00:16 -0500 |
| commit | afc59400d6c65bad66d4ad0b2daf879cbff8e23e (patch) | |
| tree | cc4c1c4dcf01106259d4f18d637cb2d1115ef980 /fs/nfsd/nfs4xdr.c | |
| parent | 79f77bf9a4e3dd5ead006b8f17e7c4ff07d8374e (diff) | |
nfsd4: cleanup: replace rq_resused count by rq_next_page pointer
It may be a matter of personal taste, but I find this makes the code
clearer.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index d7a3be5ab77..0dc11586682 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2906,7 +2906,8 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_read *read) { u32 eof; - int v, pn; + int v; + struct page *page; unsigned long maxcount; long len; __be32 *p; @@ -2925,16 +2926,15 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, len = maxcount; v = 0; while (len > 0) { - pn = resp->rqstp->rq_resused; - if (!resp->rqstp->rq_respages[pn]) { /* ran out of pages */ + page = *(resp->rqstp->rq_next_page); + if (!page) { /* ran out of pages */ maxcount -= len; break; } - resp->rqstp->rq_vec[v].iov_base = - page_address(resp->rqstp->rq_respages[pn]); + resp->rqstp->rq_vec[v].iov_base = page_address(page); resp->rqstp->rq_vec[v].iov_len = len < PAGE_SIZE ? len : PAGE_SIZE; - resp->rqstp->rq_resused++; + resp->rqstp->rq_next_page++; v++; len -= PAGE_SIZE; } @@ -2980,10 +2980,10 @@ nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd return nfserr; if (resp->xbuf->page_len) return nfserr_resource; - if (!resp->rqstp->rq_respages[resp->rqstp->rq_resused]) + if (!*resp->rqstp->rq_next_page) return nfserr_resource; - page = page_address(resp->rqstp->rq_respages[resp->rqstp->rq_resused++]); + page = page_address(*(resp->rqstp->rq_next_page++)); maxcount = PAGE_SIZE; RESERVE_SPACE(4); @@ -3031,7 +3031,7 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4 return nfserr; if (resp->xbuf->page_len) return nfserr_resource; - if (!resp->rqstp->rq_respages[resp->rqstp->rq_resused]) + if (!*resp->rqstp->rq_next_page) return nfserr_resource; RESERVE_SPACE(NFS4_VERIFIER_SIZE); @@ -3059,7 +3059,7 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4 goto err_no_verf; } - page = page_address(resp->rqstp->rq_respages[resp->rqstp->rq_resused++]); + page = page_address(*(resp->rqstp->rq_next_page++)); readdir->common.err = 0; readdir->buflen = maxcount; readdir->buffer = page; @@ -3082,8 +3082,8 @@ 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) - (char*)page_address( - resp->rqstp->rq_respages[resp->rqstp->rq_resused-1]); + resp->xbuf->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; |