Return-Path: Received: from int-mailstore01.merit.edu ([207.75.116.232]:52707 "EHLO int-mailstore01.merit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756711Ab1FGR0a (ORCPT ); Tue, 7 Jun 2011 13:26:30 -0400 Date: Tue, 7 Jun 2011 13:26:26 -0400 From: Jim Rees To: Benny Halevy Cc: linux-nfs@vger.kernel.org, peter honeyman Subject: [PATCH 05/88] pnfs: xdr support for three word attribute bitmap Message-ID: <02f0129fe5370e69e08f839debc9eb90b642af51.1307464382.git.rees@umich.edu> References: Content-Type: text/plain; charset=us-ascii In-Reply-To: Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 From: Benny Halevy Signed-off-by: Benny Halevy Signed-off-by: Fred Isaman [pnfs: clean up xdr] Signed-off-by: Benny Halevy --- fs/nfs/nfs4xdr.c | 59 +++++++++++++++++++++++++++++++++++---------- include/linux/nfs_fs_sb.h | 2 +- include/linux/nfs_xdr.h | 2 +- 3 files changed, 48 insertions(+), 15 deletions(-) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index aeb7bc2..5e4447c 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -91,7 +91,7 @@ static int nfs4_stat_to_errno(int); #define encode_getfh_maxsz (op_encode_hdr_maxsz) #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ ((3+NFS4_FHSIZE) >> 2)) -#define nfs4_fattr_bitmap_maxsz 3 +#define nfs4_fattr_bitmap_maxsz 4 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) @@ -1095,6 +1095,35 @@ static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm hdr->replen += decode_getattr_maxsz; } +static void +encode_getattr_three(struct xdr_stream *xdr, + uint32_t bm0, uint32_t bm1, uint32_t bm2, + struct compound_hdr *hdr) +{ + __be32 *p; + + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_GETATTR); + if (bm2) { + p = reserve_space(xdr, 16); + *p++ = cpu_to_be32(3); + *p++ = cpu_to_be32(bm0); + *p++ = cpu_to_be32(bm1); + *p = cpu_to_be32(bm2); + } else if (bm1) { + p = reserve_space(xdr, 12); + *p++ = cpu_to_be32(2); + *p++ = cpu_to_be32(bm0); + *p = cpu_to_be32(bm1); + } else { + p = reserve_space(xdr, 8); + *p++ = cpu_to_be32(1); + *p = cpu_to_be32(bm0); + } + hdr->nops++; + hdr->replen += decode_getattr_maxsz; +} + static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], @@ -2947,14 +2976,17 @@ static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) goto out_overflow; bmlen = be32_to_cpup(p); - bitmap[0] = bitmap[1] = 0; + bitmap[0] = bitmap[1] = bitmap[2] = 0; p = xdr_inline_decode(xdr, (bmlen << 2)); if (unlikely(!p)) goto out_overflow; if (bmlen > 0) { bitmap[0] = be32_to_cpup(p++); - if (bmlen > 1) - bitmap[1] = be32_to_cpup(p); + if (bmlen > 1) { + bitmap[1] = be32_to_cpup(p++); + if (bmlen > 2) + bitmap[2] = be32_to_cpup(p); + } } return 0; out_overflow: @@ -2986,8 +3018,9 @@ static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint3 return ret; bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; } else - bitmask[0] = bitmask[1] = 0; - dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); + bitmask[0] = bitmask[1] = bitmask[2] = 0; + dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, + bitmask[0], bitmask[1], bitmask[2]); return 0; } @@ -4041,7 +4074,7 @@ out_overflow: static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) { __be32 *savep; - uint32_t attrlen, bitmap[2] = {0}; + uint32_t attrlen, bitmap[3] = {0}; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) @@ -4067,7 +4100,7 @@ xdr_error: static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) { __be32 *savep; - uint32_t attrlen, bitmap[2] = {0}; + uint32_t attrlen, bitmap[3] = {0}; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) @@ -4099,7 +4132,7 @@ xdr_error: static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) { __be32 *savep; - uint32_t attrlen, bitmap[2] = {0}; + uint32_t attrlen, bitmap[3] = {0}; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) @@ -4239,7 +4272,7 @@ static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fat { __be32 *savep; uint32_t attrlen, - bitmap[2] = {0}; + bitmap[3] = {0}; int status; status = decode_op_hdr(xdr, OP_GETATTR); @@ -4328,7 +4361,7 @@ static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) { __be32 *savep; - uint32_t attrlen, bitmap[2]; + uint32_t attrlen, bitmap[3]; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) @@ -4775,7 +4808,7 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, { __be32 *savep; uint32_t attrlen, - bitmap[2] = {0}; + bitmap[3] = {0}; struct kvec *iov = req->rq_rcv_buf.head; int status; @@ -6606,7 +6639,7 @@ out: int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, int plus) { - uint32_t bitmap[2] = {0}; + uint32_t bitmap[3] = {0}; uint32_t len; __be32 *p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 87694ca..61052fc 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -130,7 +130,7 @@ struct nfs_server { #endif #ifdef CONFIG_NFS_V4 - u32 attr_bitmask[2];/* V4 bitmask representing the set + u32 attr_bitmask[3];/* V4 bitmask representing the set of attributes supported on this filesystem */ u32 cache_consistency_bitmask[2]; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index a4f3dd6..6c32c9d 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -957,7 +957,7 @@ struct nfs4_server_caps_arg { }; struct nfs4_server_caps_res { - u32 attr_bitmask[2]; + u32 attr_bitmask[3]; u32 acl_bitmask; u32 has_links; u32 has_symlinks; -- 1.7.4.1