Return to the behavior of releasing reply buffer pages as part of
sending an RPC Reply over RDMA. I measured a performance improvement
(which is documented in 4/4). Matching the page release behavior of
socket transports also means we should be able to share a little
more code between transports as MSG_SPLICE_PAGES rolls out.
Changes since v1:
- Add a related fix
- Clarify some of the patch descriptions
---
Chuck Lever (5):
SUNRPC: Revert cc93ce9529a6 ("svcrdma: Retain the page backing rq_res.head[0].iov_base")
SUNRPC: Revert 579900670ac7 ("svcrdma: Remove unused sc_pages field")
svcrdma: Revert 2a1e4f21d841 ("svcrdma: Normalize Send page handling")
svcrdma: Prevent page release when nothing was received
SUNRPC: Optimize page release in svc_rdma_sendto()
include/linux/sunrpc/svc_rdma.h | 4 +-
net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 8 +---
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 12 ++---
net/sunrpc/xprtrdma/svc_rdma_sendto.c | 53 ++++++++++++++--------
4 files changed, 44 insertions(+), 33 deletions(-)
--
Chuck Lever
