[074/101] nfsd4: Remove check for a 32-bit cookie in nfsd4_readdir()

From: Greg KH
Date: Wed Nov 02 2011 - 21:45:02 EST


2.6.33-longterm review patch. If anyone has any objections, please let us know.

------------------

From: Bernd Schubert <bernd.schubert@xxxxxxxxxxxxxxxxxx>

commit 832023bffb4b493f230be901f681020caf3ed1f8 upstream.

Fan Yong <yong.fan@xxxxxxxxxxxxx> noticed setting
FMODE_32bithash wouldn't work with nfsd v4, as
nfsd4_readdir() checks for 32 bit cookies. However, according to RFC 3530
cookies have a 64 bit type and cookies are also defined as u64 in
'struct nfsd4_readdir'. So remove the test for >32-bit values.

Signed-off-by: Bernd Schubert <bernd.schubert@xxxxxxxxxxxxxxxxxx>
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
fs/nfsd/nfs4proc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -677,7 +677,7 @@ nfsd4_readdir(struct svc_rqst *rqstp, st
readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion);
readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion);

- if ((cookie > ~(u32)0) || (cookie == 1) || (cookie == 2) ||
+ if ((cookie == 1) || (cookie == 2) ||
(cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE)))
return nfserr_bad_cookie;



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