Re: [PATCH] RDMA/rxe: Convert spin_{lock_bh,unlock_bh} to spin_{lock_irqsave,unlock_irqrestore}

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On 5/17/23 08:39, Jason Gunthorpe wrote:
On Tue, May 16, 2023 at 07:32:35PM -0500, Bob Pearson wrote:
On 5/16/23 19:11, Jason Gunthorpe wrote:
On Wed, May 10, 2023 at 11:50:56AM +0800, Guoqing Jiang wrote:
We need to call spin_lock_irqsave/spin_unlock_irqrestore for state_lock
in rxe, otherwsie the callchain

ib_post_send_mad
	-> spin_lock_irqsave
	-> ib_post_send -> rxe_post_send
				-> spin_lock_bh
				-> spin_unlock_bh
	-> spin_unlock_irqrestore

caused below traces during run block nvmeof-mp/001 test.
..
Fixes: f605f26ea196 ("RDMA/rxe: Protect QP state with qp->state_lock")
Signed-off-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxx>
Reviewed-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
---
  drivers/infiniband/sw/rxe/rxe_comp.c  | 26 +++++++++++--------
  drivers/infiniband/sw/rxe/rxe_net.c   |  7 +++---
  drivers/infiniband/sw/rxe/rxe_qp.c    | 36 +++++++++++++++++----------
  drivers/infiniband/sw/rxe/rxe_recv.c  |  9 ++++---
  drivers/infiniband/sw/rxe/rxe_req.c   | 30 ++++++++++++----------
  drivers/infiniband/sw/rxe/rxe_resp.c  | 14 ++++++-----
  drivers/infiniband/sw/rxe/rxe_verbs.c | 25 ++++++++++---------
  7 files changed, 86 insertions(+), 61 deletions(-)
Applied to for-rc, thanks

Jason
You didn't mention it but this shouldn't have applied/compiled without
fixing the overlap of these two patches. ??
oh, I fixed it, it is trivial

Thanks for the fixing and review.

Guoqing



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