From patchwork Wed Jul 27 11:02:54 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [2/3] Remove check for a 32-bit cookie in nfsd4_readdir() Date: Wed, 27 Jul 2011 01:02:54 -0000 From: Bernd Schubert X-Patchwork-Id: 107029 Message-Id: <20110727110254.204979.34074.stgit@localhost.localdomain> To: linux-nfs@vger.kernel.org, linux-ext4@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, yong.fan@whamcloud.com, adilger@whamcloud.com, tytso@mit.edu Fan Yong noticed simply setting O_64BITHASH wouldn't work with nfsd v4, as nfsd4_readdir() checks for a 32 bit cookie. However, according to RFC 3530 cookies have a 64 bit type and it is also defined as u64 'struct nfsd4_readdir'. So remove the test for >32-bit values. Signed-off-by: Bernd Schubert --- fs/nfsd/nfs4proc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 3a6dbd7..f7799d3 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -682,7 +682,7 @@ nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 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;