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[for-next,v2,00/10] Correct race conditions in rdma_rxe

Message ID 20211015223250.6501-1-rpearsonhpe@gmail.com (mailing list archive)
Headers show
Series Correct race conditions in rdma_rxe | expand

Message

Bob Pearson Oct. 15, 2021, 10:32 p.m. UTC 
There are several potential race conditions discovered in the rdma_rxe
driver. These patches correct them. They mostly relate to races between
normal operations and destroying objects.

This patch series applies cleanly to current for-next.
commit 3b87e0824272414cec79763afef6720c7c908c44 (for-next)

Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
---
v2
  Rebased to current for-next.
  Added 4 additional patches

Bob Pearson (10):
  RDMA/rxe: Make rxe_alloc() take pool lock
  RDMA/rxe: Copy setup parameters into rxe_pool
  RDMA/rxe: Save object pointer in pool element
  RDMA/rxe: Combine rxe_add_index with rxe_alloc
  RDMA/rxe: Combine rxe_add_key with rxe_alloc
  RDMA/rxe: Fix potential race condition in rxe_pool
  RDMA/rxe: Separate out last rxe_drop_ref
  RDMA/rxe: Rewrite rxe_mcast.c
  RDMA/rxe: Fix ref error in rxe_av.c
  RDMA/rxe: Replace mr by rkey in responder resources

 drivers/infiniband/sw/rxe/rxe.c       |   8 -
 drivers/infiniband/sw/rxe/rxe_av.c    |  24 +-
 drivers/infiniband/sw/rxe/rxe_cq.c    |   9 +-
 drivers/infiniband/sw/rxe/rxe_loc.h   |  19 +-
 drivers/infiniband/sw/rxe/rxe_mcast.c | 210 ++++++++++-----
 drivers/infiniband/sw/rxe/rxe_mr.c    |  11 +-
 drivers/infiniband/sw/rxe/rxe_mw.c    |  28 +-
 drivers/infiniband/sw/rxe/rxe_net.c   |  39 +--
 drivers/infiniband/sw/rxe/rxe_pool.c  | 374 ++++++++++++++++----------
 drivers/infiniband/sw/rxe/rxe_pool.h  |  86 +++---
 drivers/infiniband/sw/rxe/rxe_qp.c    |  11 +-
 drivers/infiniband/sw/rxe/rxe_req.c   |  55 ++--
 drivers/infiniband/sw/rxe/rxe_resp.c  | 125 ++++++---
 drivers/infiniband/sw/rxe/rxe_srq.c   |   8 +
 drivers/infiniband/sw/rxe/rxe_verbs.c |  65 ++---
 drivers/infiniband/sw/rxe/rxe_verbs.h |   4 +-
 16 files changed, 611 insertions(+), 465 deletions(-)