[PATCH v2 0/2] Fix XDR encoding near page boundaries

[cel@kernel.org]

From: Chuck Lever <chuck.lever@oracle.com>

Build out the patch series to address the longstanding bug pointed
out by J David and Rick Macklem.

At least during NFSv4 COMPOUND encoding, using
write_bytes_to_xdr_buf() seems less brittle than saving a pointer
into the XDR encoding buffer.

I have one more patch to add (not yet included) that addresses the
issue in the NFSv4 READ and READ_PLUS encoders.

Changes since RFC:
- Document the guarantees around pointer returned by xdr_reserve_space()
- Use write_bytes_to_xdr_buf() instead

Chuck Lever (2):
  NFSD: Encode COMPOUND operation status on page boundaries
  SUNRPC: Document validity guarantees of the pointer returned by
    reserve_space

 fs/nfsd/nfs4xdr.c | 20 ++++++++++----------
 net/sunrpc/xdr.c  |  3 +++
 2 files changed, 13 insertions(+), 10 deletions(-)

-- 
2.47.0