From: "J. Bruce Fields" <bfields@fieldses.org>
To: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Cc: linux-nfs@vger.kernel.org, linux-ext4@vger.kernel.org,
hch@infradead.org, yong.fan@whamcloud.com,
linux-fsdevel@vger.kernel.org, tytso@mit.edu,
adilger@whamcloud.com
Subject: Re: [PATCH 3/4] RFC: Remove check for a 32-bit cookie in nfsd4_readdir()
Date: Tue, 9 Aug 2011 13:31:45 -0400 [thread overview]
Message-ID: <20110809173145.GA16206@fieldses.org> (raw)
In-Reply-To: <20110808153808.1872437.85162.stgit@fsdevel3>
On Mon, Aug 08, 2011 at 05:38:08PM +0200, Bernd Schubert wrote:
> Fan Yong <yong.fan@whamcloud.com> 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.
Wow, thanks, I wonder where that check came from. Looks like it was
there since the very first nfsv4 commit.
Applying.
--b.
>
> Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
> ---
> fs/nfsd/nfs4proc.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
> index e807776..9bf0a66 100644
> --- a/fs/nfsd/nfs4proc.c
> +++ b/fs/nfsd/nfs4proc.c
> @@ -691,7 +691,7 @@ 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;
>
>
> --
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next prev parent reply other threads:[~2011-08-09 17:31 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-08 15:37 [PATCH 0/4] Series short description Bernd Schubert
2011-08-08 15:37 ` [PATCH 1/4] Add new FMODE flags: FMODE_32bithash and FMODE_64bithash Bernd Schubert
2011-08-08 15:38 ` [PATCH 2/4] Return 32/64-bit dir name hash according to usage type Bernd Schubert
2011-08-08 15:38 ` [PATCH 3/4] RFC: Remove check for a 32-bit cookie in nfsd4_readdir() Bernd Schubert
2011-08-09 17:31 ` J. Bruce Fields [this message]
2011-08-09 17:39 ` Boaz Harrosh
2011-08-09 18:05 ` J. Bruce Fields
2011-08-08 15:38 ` [PATCH 4/4] nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes) Bernd Schubert
2011-08-09 17:33 ` J. Bruce Fields
2011-08-10 19:13 ` Bernd Schubert
2011-08-10 19:35 ` J. Bruce Fields
2011-08-08 15:47 ` [PATCH 0/4] 32/64 bit llseek hashes v2 Bernd Schubert
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