On Mon, Aug 30, 2021 at 12:53 PM Olga Kornievskaia <olga.kornievskaia@xxxxxxxxx> wrote: > > From: Olga Kornievskaia <kolga@xxxxxxxxxx> > > We have previously revisited how XDR padding management was done > for the RDMA read chunks. > > This patch series attempts to do the same for the RDMA read chunks > and altogether remove the options of doing an implicit roundup. Apologies for typos but this is about RDMA write chunks. > According to the RFC 8166 client "SHOULD NOT" include additional > space for XDR roundup padding. Furthermore, server MUST NOT write > XDR padding into the a write chunk. Given those two statement and > a patch "NFS: Always provide aligned buffers to the RPC read layers", > there is no reason for the client to look at the tail and assume > there is any padding data for which it needs to allocate space for. > > The only operation that this patch series effects is an NFS read. > All non-read ops that might use a write chunk are setup to use > reply chunk if reply is larger than inline threshold, not a write > chunk. > > > > *** SUBJECT HERE *** > > *** BLURB HERE *** > > Olga Kornievskaia (2): > xprtrdma: xdr pad optimization revisted again > xprtrdma: remove re_implicit_roundup xprt_rdma_pad_optimize > > net/sunrpc/xprtrdma/rpc_rdma.c | 15 --------------- > net/sunrpc/xprtrdma/transport.c | 8 -------- > net/sunrpc/xprtrdma/verbs.c | 2 -- > net/sunrpc/xprtrdma/xprt_rdma.h | 6 ------ > 4 files changed, 31 deletions(-) > > -- > 2.27.0 >
