linux-stable.git/include/linux/sunrpc/xdr.h, branch v5.2.3

SUNRPC: Remove xdr_buf_trim()

2019-02-14T14:39:34+00:00

The key action of xdr_buf_trim() is that it shortens buf->len, the
length of the xdr_buf's content. The other actions -- shortening the
head, pages, and tail components -- are actually not necessary. In
particular, changing the size of those components can corrupt the
RPC message contained in the buffer. This is an accident waiting to
happen rather than a current bug, as far as we know.

Signed-off-by: Chuck Lever 
Acked-by: Bruce Fields 
Signed-off-by: Anna Schumaker

SUNRPC: Use struct xdr_stream when decoding RPC Reply header

2019-02-14T14:11:18+00:00

Modernize and harden the code path that parses an RPC Reply
message.

Signed-off-by: Chuck Lever 
Signed-off-by: Anna Schumaker

SUNRPC: Clean up rpc_verify_header()

2019-02-13T18:54:37+00:00

- Recover some instruction count because I'm about to introduce a
  few xdr_inline_decode call sites
- Replace dprintk() call sites with trace points
- Reduce the hot path so it fits in fewer cachelines

I've also renamed it rpc_decode_header() to match everything else
in the RPC client.

Signed-off-by: Chuck Lever 
Signed-off-by: Anna Schumaker

SUNRPC: Use struct xdr_stream when constructing RPC Call header

2019-02-13T18:45:17+00:00

Modernize and harden the code path that constructs each RPC Call
message.

Signed-off-by: Chuck Lever 
Signed-off-by: Anna Schumaker

SUNRPC: Add xdr_stream::rqst field

2019-02-13T16:05:50+00:00

Having access to the controlling rpc_rqst means a trace point in the
XDR code can report:

 - the XID
 - the task ID and client ID
 - the p_name of RPC being processed

Subsequent patches will introduce such trace points.

Signed-off-by: Chuck Lever 
Signed-off-by: Anna Schumaker

SUNRPC: Fix a memory leak in call_encode()

2018-12-02T14:43:57+00:00

If we retransmit an RPC request, we currently end up clobbering the
value of req->rq_rcv_buf.bvec that was allocated by the initial call to
xprt_request_prepare(req).

Signed-off-by: Trond Myklebust

SUNRPC: Unexport xdr_partial_copy_from_skb()

2018-09-30T19:35:16+00:00

It is no longer used outside of net/sunrpc/socklib.c

Signed-off-by: Trond Myklebust

SUNRPC: Allow AF_LOCAL sockets to use the generic stream receive

2018-09-30T19:35:16+00:00

Signed-off-by: Trond Myklebust

SUNRPC: Add a bvec array to struct xdr_buf for use with iovec_iter()

2018-09-30T19:35:16+00:00

Add a bvec array to struct xdr_buf, and have the client allocate it
when we need to receive data into pages.

Signed-off-by: Trond Myklebust

SUNRPC: Add a label for RPC calls that require allocation on receive

2018-09-30T19:35:16+00:00

If the RPC call relies on the receive call allocating pages as buffers,
then let's label it so that we
a) Don't leak memory by allocating pages for requests that do not expect
   this behaviour
b) Can optimise for the common case where calls do not require allocation.

Signed-off-by: Trond Myklebust