This is a note to let you know that I've just added the patch titled
NFSD: Replace READ* macros in nfsd4_decode_clone()
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nfsd-replace-read-macros-in-nfsd4_decode_clone.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 52d3ed364eb5d4d29e5caabc9d53392c5decac7e
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date: Wed Nov 4 10:46:46 2020 -0500
NFSD: Replace READ* macros in nfsd4_decode_clone()
[ Upstream commit 3dfd0b0e15671e2b4047ccb9222432f0b2d930be ]
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 2e2fae7e38db2..bf2a2ef6a8b97 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -575,18 +575,6 @@ nfsd4_decode_fattr4(struct nfsd4_compoundargs *argp, u32 *bmval, u32 bmlen,
return nfs_ok;
}
-static __be32
-nfsd4_decode_stateid(struct nfsd4_compoundargs *argp, stateid_t *sid)
-{
- DECODE_HEAD;
-
- READ_BUF(sizeof(stateid_t));
- sid->si_generation = be32_to_cpup(p++);
- COPYMEM(&sid->si_opaque, sizeof(stateid_opaque_t));
-
- DECODE_TAIL;
-}
-
static __be32
nfsd4_decode_stateid4(struct nfsd4_compoundargs *argp, stateid_t *sid)
{
@@ -1919,25 +1907,6 @@ nfsd4_decode_fallocate(struct nfsd4_compoundargs *argp,
return nfs_ok;
}
-static __be32
-nfsd4_decode_clone(struct nfsd4_compoundargs *argp, struct nfsd4_clone *clone)
-{
- DECODE_HEAD;
-
- status = nfsd4_decode_stateid(argp, &clone->cl_src_stateid);
- if (status)
- return status;
- status = nfsd4_decode_stateid(argp, &clone->cl_dst_stateid);
- if (status)
- return status;
-
- READ_BUF(8 + 8 + 8);
- p = xdr_decode_hyper(p, &clone->cl_src_pos);
- p = xdr_decode_hyper(p, &clone->cl_dst_pos);
- p = xdr_decode_hyper(p, &clone->cl_count);
- DECODE_TAIL;
-}
-
static __be32 nfsd4_decode_nl4_server(struct nfsd4_compoundargs *argp,
struct nl4_server *ns)
{
@@ -2067,6 +2036,27 @@ nfsd4_decode_seek(struct nfsd4_compoundargs *argp, struct nfsd4_seek *seek)
return nfs_ok;
}
+static __be32
+nfsd4_decode_clone(struct nfsd4_compoundargs *argp, struct nfsd4_clone *clone)
+{
+ __be32 status;
+
+ status = nfsd4_decode_stateid4(argp, &clone->cl_src_stateid);
+ if (status)
+ return status;
+ status = nfsd4_decode_stateid4(argp, &clone->cl_dst_stateid);
+ if (status)
+ return status;
+ if (xdr_stream_decode_u64(argp->xdr, &clone->cl_src_pos) < 0)
+ return nfserr_bad_xdr;
+ if (xdr_stream_decode_u64(argp->xdr, &clone->cl_dst_pos) < 0)
+ return nfserr_bad_xdr;
+ if (xdr_stream_decode_u64(argp->xdr, &clone->cl_count) < 0)
+ return nfserr_bad_xdr;
+
+ return nfs_ok;
+}
+
/*
* XDR data that is more than PAGE_SIZE in size is normally part of a
* read or write. However, the size of extended attributes is limited
