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| author | Manoj Naik <manoj@almaden.ibm.com> | 2005-06-22 17:16:39 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2005-06-22 16:07:43 -0400 |
| commit | 97d312d037e63e7c8ac004ffe3072f82a6d45495 (patch) | |
| tree | c5fb167f0a523763113b778c45f3e56367456dbd /fs/nfs/nfs4xdr.c | |
| parent | 8d0a8a9d0ec790086c64d210af413ac351d89e35 (diff) | |
| download | linux-97d312d037e63e7c8ac004ffe3072f82a6d45495.tar.bz2 | |
[PATCH] NFSv4: add support for rdattr_error in NFSv4 readdir requests.
Request RDATTR_ERROR as an attribute in readdir to distinguish between a
directory being within an absent filesystem or one (or more) of its entries.
Signed-off-by: Manoj Naik <manoj@almaden.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
| -rw-r--r-- | fs/nfs/nfs4xdr.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 325cd6d4f23a..4d655d252c6d 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1014,6 +1014,10 @@ static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) { struct rpc_auth *auth = req->rq_task->tk_auth; + uint32_t attrs[2] = { + FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, + FATTR4_WORD1_MOUNTED_ON_FILEID, + }; int replen; uint32_t *p; @@ -1024,13 +1028,13 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ WRITE32(readdir->count); WRITE32(2); - if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) { - WRITE32(0); - WRITE32(FATTR4_WORD1_MOUNTED_ON_FILEID); - } else { - WRITE32(FATTR4_WORD0_FILEID); - WRITE32(0); - } + /* Switch to mounted_on_fileid if the server supports it */ + if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) + attrs[0] &= ~FATTR4_WORD0_FILEID; + else + attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; + WRITE32(attrs[0] & readdir->bitmask[0]); + WRITE32(attrs[1] & readdir->bitmask[1]); /* set up reply kvec * toplevel_status + taglen + rescount + OP_PUTFH + status @@ -4060,6 +4064,12 @@ uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus) } len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ if (len > 0) { + if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { + bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; + /* Ignore the return value of rdattr_error for now */ + p++; + len--; + } if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) xdr_decode_hyper(p, &entry->ino); else if (bitmap[0] == FATTR4_WORD0_FILEID) |