xprtrdma: Fix trace point use-after-free race
It's not safe to use resources pointed to by the @send_wr of ib_post_send() _after_ that function returns. Those resources are typically freed by the Send completion handler, which can run before ib_post_send() returns. Thus the trace points currently around ib_post_send() in the client's RPC/RDMA transport are a hazard, even when they are disabled. Rearrange them so that they touch the Work Request only _before_ ib_post_send() is invoked. Fixes: ab03eff5 ("xprtrdma: Add trace points in RPC Call transmit paths") Signed-off-by:Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
Anna Schumaker <Anna.Schumaker@Netapp.com>
parent
58bd6656
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