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| author | Kinglong Mee <kinglongmee@gmail.com> | 2015-08-26 21:12:58 +0800 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-08-27 19:45:27 -0400 |
| commit | 8c61282ff61c28d5a12bb53f0eaa221d30fd3ae1 (patch) | |
| tree | 30b45d2b58931e12d7d28c48548e41aa4330fc76 /fs/nfs/nfs4xdr.c | |
| parent | 5153aacfb8e2744af68e7b84ccd3f02aeefe4f48 (diff) | |
| download | linux-8c61282ff61c28d5a12bb53f0eaa221d30fd3ae1.tar.bz2 | |
NFS: Get suppattr_exclcreat when getting server capabilities
Create file with attributs as NFS4_CREATE_EXCLUSIVE4_1 mode
depends on suppattr_exclcreat attribut.
v3, same as v2.
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
| -rw-r--r-- | fs/nfs/nfs4xdr.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index c42459e45f62..ad8dde12f23b 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -2582,6 +2582,7 @@ static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, struct xdr_stream *xdr, struct nfs4_server_caps_arg *args) { + const u32 *bitmask = args->bitmask; struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; @@ -2589,11 +2590,7 @@ static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fhandle, &hdr); - encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| - FATTR4_WORD0_FH_EXPIRE_TYPE| - FATTR4_WORD0_LINK_SUPPORT| - FATTR4_WORD0_SYMLINK_SUPPORT| - FATTR4_WORD0_ACLSUPPORT, &hdr); + encode_getattr_three(xdr, bitmask[0], bitmask[1], bitmask[2], &hdr); encode_nops(&hdr); } @@ -3370,6 +3367,22 @@ out_overflow: return -EIO; } +static int decode_attr_exclcreat_supported(struct xdr_stream *xdr, + uint32_t *bitmap, uint32_t *bitmask) +{ + if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) { + int ret; + ret = decode_attr_bitmap(xdr, bitmask); + if (unlikely(ret < 0)) + return ret; + bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT; + } else + bitmask[0] = bitmask[1] = bitmask[2] = 0; + dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, + bitmask[0], bitmask[1], bitmask[2]); + return 0; +} + static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) { __be32 *p; @@ -4323,6 +4336,9 @@ static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_re goto xdr_error; if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) goto xdr_error; + if ((status = decode_attr_exclcreat_supported(xdr, bitmap, + res->exclcreat_bitmask)) != 0) + goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: dprintk("%s: xdr returned %d!\n", __func__, -status); |