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| author | Benny Halevy <bhalevy@panasas.com> | 2009-04-01 09:23:20 -0400 |
|---|---|---|
| committer | Benny Halevy <bhalevy@panasas.com> | 2009-06-17 14:11:35 -0700 |
| commit | 48a9e2d2289ed4b5053b3986d99709e9b07a0923 (patch) | |
| tree | db397b9d26c69eefadef9e53c27364624743cef4 /fs/nfs/callback_xdr.c | |
| parent | b8f2ef84b079ceb22b42d6d353609db7eb8efa93 (diff) | |
| download | lwn-48a9e2d2289ed4b5053b3986d99709e9b07a0923.tar.gz lwn-48a9e2d2289ed4b5053b3986d99709e9b07a0923.zip | |
nfs41: decode minorversion 1 cb_compound header
decode cb_compound header conforming to
http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26
Get rid of cb_compound_hdr_arg.callback_ident
callback_ident is not used anywhere so we shouldn't waste any memory to
store it.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: no need to break read_buf in decode_compound_hdr_arg]
See http://linux-nfs.org/pipermail/pnfs/2009-June/007844.html
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'fs/nfs/callback_xdr.c')
| -rw-r--r-- | fs/nfs/callback_xdr.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c index 91f6f74ffea7..f6cc79b1d1f3 100644 --- a/fs/nfs/callback_xdr.c +++ b/fs/nfs/callback_xdr.c @@ -147,14 +147,15 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound if (unlikely(p == NULL)) return htonl(NFS4ERR_RESOURCE); hdr->minorversion = ntohl(*p++); - /* Check minor version is zero. */ - if (hdr->minorversion != 0) { + /* Check minor version is zero or one. */ + if (hdr->minorversion <= 1) { + p++; /* skip callback_ident */ + } else { printk(KERN_WARNING "%s: NFSv4 server callback with " "illegal minor version %u!\n", __func__, hdr->minorversion); return htonl(NFS4ERR_MINOR_VERS_MISMATCH); } - hdr->callback_ident = ntohl(*p++); hdr->nops = ntohl(*p); dprintk("%s: minorversion %d nops %d\n", __func__, hdr->minorversion, hdr->nops); |