5.10-stable review patch. If anyone has any objections, please let me know.
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From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit 9cedc2e64c296efb3bebe93a0ceeb5e71e8d722d ]
As an additional clean up, neither nfsd3_proc_readdir() nor nfsd3_proc_readdirplus() make use of the dircount argument, so remove it from struct nfsd3_readdirargs.
Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfsd/nfs3xdr.c | 38 ++++++++++++++++++++++++-------------- fs/nfsd/xdr3.h | 1 - 2 files changed, 24 insertions(+), 15 deletions(-)
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index 8394aeb8381e6..eb55be106a04e 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -559,33 +559,43 @@ nfs3svc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p) int nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p) { + struct xdr_stream *xdr = &rqstp->rq_arg_stream; struct nfsd3_readdirargs *args = rqstp->rq_argp;
- p = decode_fh(p, &args->fh); - if (!p) + if (!svcxdr_decode_nfs_fh3(xdr, &args->fh)) + return 0; + if (xdr_stream_decode_u64(xdr, &args->cookie) < 0) + return 0; + args->verf = xdr_inline_decode(xdr, NFS3_COOKIEVERFSIZE); + if (!args->verf) + return 0; + if (xdr_stream_decode_u32(xdr, &args->count) < 0) return 0; - p = xdr_decode_hyper(p, &args->cookie); - args->verf = p; p += 2; - args->dircount = ~0; - args->count = ntohl(*p++);
- return xdr_argsize_check(rqstp, p); + return 1; }
int nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p) { + struct xdr_stream *xdr = &rqstp->rq_arg_stream; struct nfsd3_readdirargs *args = rqstp->rq_argp; + u32 dircount;
- p = decode_fh(p, &args->fh); - if (!p) + if (!svcxdr_decode_nfs_fh3(xdr, &args->fh)) + return 0; + if (xdr_stream_decode_u64(xdr, &args->cookie) < 0) + return 0; + args->verf = xdr_inline_decode(xdr, NFS3_COOKIEVERFSIZE); + if (!args->verf) + return 0; + /* dircount is ignored */ + if (xdr_stream_decode_u32(xdr, &dircount) < 0) + return 0; + if (xdr_stream_decode_u32(xdr, &args->count) < 0) return 0; - p = xdr_decode_hyper(p, &args->cookie); - args->verf = p; p += 2; - args->dircount = ntohl(*p++); - args->count = ntohl(*p++);
- return xdr_argsize_check(rqstp, p); + return 1; }
int diff --git a/fs/nfsd/xdr3.h b/fs/nfsd/xdr3.h index 789a364d5e69d..64af5b01c5d7b 100644 --- a/fs/nfsd/xdr3.h +++ b/fs/nfsd/xdr3.h @@ -90,7 +90,6 @@ struct nfsd3_symlinkargs { struct nfsd3_readdirargs { struct svc_fh fh; __u64 cookie; - __u32 dircount; __u32 count; __be32 * verf; };