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| author | J. Bruce Fields <bfields@redhat.com> | 2014-02-26 17:00:38 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2014-05-28 14:52:35 -0400 |
| commit | d3f627c815b6eb5f6be388100617c36823d661c5 (patch) | |
| tree | 55d53651423a044c1219f05b2515f6ae86605dd7 /fs/nfsd/nfs4xdr.c | |
| parent | ddd1ea56367202f6c99135cd59de7a97af4c4ffd (diff) | |
| download | linux-d3f627c815b6eb5f6be388100617c36823d661c5.tar.gz linux-d3f627c815b6eb5f6be388100617c36823d661c5.tar.bz2 linux-d3f627c815b6eb5f6be388100617c36823d661c5.zip | |
nfsd4: use xdr_stream throughout compound encoding
Note this makes ADJUST_ARGS useless; we'll remove it in the following
patch.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 27d1e94f12fb..5064cb5a0b8e 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->xdr.p; \ - BUG_ON(p + XDR_QUADLEN(nbytes) > resp->xdr.end); \ + p = xdr_reserve_space(&resp->xdr, nbytes); \ + BUG_ON(!p); \ } while (0) -#define ADJUST_ARGS() resp->xdr.p = p +#define ADJUST_ARGS() WARN_ON_ONCE(p != resp->xdr.p) \ /* Encode as an array of strings the string given with components * separated @sep, escaped with esc_enter and esc_exit. @@ -3056,8 +3056,11 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, __be32 nfserr, read->rd_offset, resp->rqstp->rq_vec, read->rd_vlen, &maxcount); - if (nfserr) + if (nfserr) { + xdr->p -= 2; + xdr->iov->iov_len -= 8; return nfserr; + } eof = (read->rd_offset + maxcount >= read->rd_fhp->fh_dentry->d_inode->i_size); @@ -3110,9 +3113,12 @@ nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd */ nfserr = nfsd_readlink(readlink->rl_rqstp, readlink->rl_fhp, page, &maxcount); if (nfserr == nfserr_isdir) - return nfserr_inval; - if (nfserr) + nfserr = nfserr_inval; + if (nfserr) { + xdr->p--; + xdr->iov->iov_len -= 4; return nfserr; + } WRITE32(maxcount); ADJUST_ARGS(); @@ -3213,8 +3219,9 @@ nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4 return 0; err_no_verf: - p = savep; - ADJUST_ARGS(); + xdr->p = savep; + xdr->iov->iov_len = ((char *)resp->xdr.p) + - (char *)resp->xdr.buf->head[0].iov_base; return nfserr; } |