24b8b44780
RDMA_READ completions are kept on a separate queue from the general I/O request queue. Since a separate lock is used to protect the RDMA_READ completion queue, a race exists between the dto_tasklet and the svc_rdma_recvfrom thread where the dto_tasklet sets the XPT_DATA bit and adds I/O to the read-completion queue. Concurrently, the recvfrom thread checks the generic queue, finds it empty and resets the XPT_DATA bit. A subsequent svc_xprt_enqueue will fail to enqueue the transport for I/O and cause the transport to "stall". The fix is to protect both lists with the same lock and set the XPT_DATA bit with this lock held. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> |
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| .. | ||
| Kbuild | ||
| auth.h | ||
| auth_gss.h | ||
| cache.h | ||
| clnt.h | ||
| debug.h | ||
| gss_api.h | ||
| gss_asn1.h | ||
| gss_err.h | ||
| gss_krb5.h | ||
| gss_spkm3.h | ||
| metrics.h | ||
| msg_prot.h | ||
| rpc_pipe_fs.h | ||
| rpc_rdma.h | ||
| sched.h | ||
| stats.h | ||
| svc.h | ||
| svc_rdma.h | ||
| svc_xprt.h | ||
| svcauth.h | ||
| svcauth_gss.h | ||
| svcsock.h | ||
| timer.h | ||
| types.h | ||
| xdr.h | ||
| xprt.h | ||
| xprtrdma.h | ||
| xprtsock.h | ||