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author | Fred Isaman <iisaman@citi.umich.edu> | 2011-07-31 00:52:37 (GMT) |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-31 16:18:15 (GMT) |
commit | dae100c2b1b9463996aab9162f2258145c43f7df (patch) | |
tree | 302638375d4e6a0400964ae160216080760d984a /fs | |
parent | 738fd0f360359aecc7fcd7604bbe9e854d81fb1f (diff) | |
download | linux-dae100c2b1b9463996aab9162f2258145c43f7df.tar.xz |
pnfs: ask for layout_blksize and save it in nfs_server
Block layout needs it to determine IO size.
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Tao Guo <glorioustao@gmail.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/nfs/client.c | 1 | ||||
-rw-r--r-- | fs/nfs/nfs4_fs.h | 2 | ||||
-rw-r--r-- | fs/nfs/nfs4proc.c | 5 | ||||
-rw-r--r-- | fs/nfs/nfs4xdr.c | 99 |
4 files changed, 87 insertions, 20 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index a9b1848..de00a37 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -936,6 +936,7 @@ static void nfs_server_set_fsinfo(struct nfs_server *server, if (server->wsize > NFS_MAX_FILE_IO_SIZE) server->wsize = NFS_MAX_FILE_IO_SIZE; server->wpages = (server->wsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + server->pnfs_blksize = fsinfo->blksize; set_pnfs_layoutdriver(server, mntfh, fsinfo->layouttype); server->wtmult = nfs_block_bits(fsinfo->wtmult, NULL); diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 1909ee8..1ec1a85 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -318,7 +318,7 @@ extern const struct nfs4_minor_version_ops *nfs_v4_minor_ops[]; extern const u32 nfs4_fattr_bitmap[2]; extern const u32 nfs4_statfs_bitmap[2]; extern const u32 nfs4_pathconf_bitmap[2]; -extern const u32 nfs4_fsinfo_bitmap[2]; +extern const u32 nfs4_fsinfo_bitmap[3]; extern const u32 nfs4_fs_locations_bitmap[2]; /* nfs4renewd.c */ diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index af32d3d..e86de79 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -140,12 +140,13 @@ const u32 nfs4_pathconf_bitmap[2] = { 0 }; -const u32 nfs4_fsinfo_bitmap[2] = { FATTR4_WORD0_MAXFILESIZE +const u32 nfs4_fsinfo_bitmap[3] = { FATTR4_WORD0_MAXFILESIZE | FATTR4_WORD0_MAXREAD | FATTR4_WORD0_MAXWRITE | FATTR4_WORD0_LEASE_TIME, FATTR4_WORD1_TIME_DELTA - | FATTR4_WORD1_FS_LAYOUT_TYPES + | FATTR4_WORD1_FS_LAYOUT_TYPES, + FATTR4_WORD2_LAYOUT_BLKSIZE }; const u32 nfs4_fs_locations_bitmap[2] = { diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 5f769f8..0261669 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -113,7 +113,11 @@ static int nfs4_stat_to_errno(int); #define encode_restorefh_maxsz (op_encode_hdr_maxsz) #define decode_restorefh_maxsz (op_decode_hdr_maxsz) #define encode_fsinfo_maxsz (encode_getattr_maxsz) -#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 15) +/* The 5 accounts for the PNFS attributes, and assumes that at most three + * layout types will be returned. + */ +#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ + nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) #define decode_renew_maxsz (op_decode_hdr_maxsz) #define encode_setclientid_maxsz \ @@ -1123,6 +1127,35 @@ 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], @@ -1131,8 +1164,11 @@ static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct c static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { - encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], - bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); + encode_getattr_three(xdr, + bitmask[0] & nfs4_fsinfo_bitmap[0], + bitmask[1] & nfs4_fsinfo_bitmap[1], + bitmask[2] & nfs4_fsinfo_bitmap[2], + hdr); } static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) @@ -2643,7 +2679,7 @@ static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, struct compound_hdr hdr = { .nops = 0, }; - const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; + const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; encode_compound_hdr(xdr, req, &hdr); encode_setclientid_confirm(xdr, arg, &hdr); @@ -2787,7 +2823,7 @@ static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), }; - const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; + const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->la_seq_args, &hdr); @@ -3068,14 +3104,17 @@ 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: @@ -3107,8 +3146,9 @@ 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; } @@ -4162,7 +4202,7 @@ 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) @@ -4188,7 +4228,7 @@ 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) @@ -4220,7 +4260,7 @@ 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) @@ -4360,7 +4400,7 @@ 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); @@ -4446,10 +4486,32 @@ static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, return status; } +/* + * The prefered block size for layout directed io + */ +static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, + uint32_t *res) +{ + __be32 *p; + + dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); + *res = 0; + if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) { + print_overflow_msg(__func__, xdr); + return -EIO; + } + *res = be32_to_cpup(p); + bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; + } + return 0; +} + 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) @@ -4477,6 +4539,9 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); if (status != 0) goto xdr_error; + status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); + if (status) + goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: @@ -4896,7 +4961,7 @@ 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; @@ -6852,7 +6917,7 @@ 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)) |