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SVCRDMA: Add check for XPT_CLOSE in svc_rdma_send

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SVCRDMA: Add check for XPT_CLOSE in svc_rdma_send

The svcrdma transport can crash if a send is waiting for an
empty SQ slot and the connection is closed due to an asynchronous error.
The crash is caused when svc_rdma_send attempts to send on a deleted
QP.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Tom Tucker 2008-03-11 12:44:27 -05:00 committed by J. Bruce Fields
parent 9167f501c6
commit 830bb59b6e
1 changed files with 2 additions and 0 deletions
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2
net/sunrpc/xprtrdma/svc_rdma_transport.c
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@ -1036,6 +1036,8 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
wait_event(xprt->sc_send_wait,
atomic_read(&xprt->sc_sq_count) <
xprt->sc_sq_depth);
if (test_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags))
return 0;
continue;
}
/* Bumped used SQ WR count and post */