[v1,0/6] xprtrdma deadlock avoidance

Message

Chuck Lever Sept. 23, 2022, 1:05 p.m. UTC

These patches attempt to reduce the possibility of a deadlock when
direct reclaim drives resource allocation in xprtrdma. Looking for
comments and review.

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Chuck Lever (6):
      svcrdma: Clean up RPCRDMA_DEF_GFP
      xprtrdma: Clean up synopsis of rpcrdma_req_create()
      xprtrdma: Clean up synopsis of rpcrdma_regbuf_alloc()
      xprtrdma: MR-related memory allocation should be allowed to fail
      xprtrdma: Memory allocation should be allowed to fail during connect
      xprtrdma: Prevent memory allocations from driving a reclaim


 net/sunrpc/xprtrdma/backchannel.c          |  2 +-
 net/sunrpc/xprtrdma/frwr_ops.c             | 17 ++++-----
 net/sunrpc/xprtrdma/svc_rdma_backchannel.c |  4 +--
 net/sunrpc/xprtrdma/verbs.c                | 42 +++++++++++-----------
 net/sunrpc/xprtrdma/xprt_rdma.h            | 10 ++++--
 5 files changed, 38 insertions(+), 37 deletions(-)

--
Chuck Lever