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4b196dc6fe
There are rare cases where an rpcrdma_req and its matched
rpcrdma_rep can be re-used, via rpcrdma_buffer_put, while the RPC
reply handler is still using that req. This is typically due to a
signal firing at just the wrong instant.
As part of closing this race window, avoid using the wrong
rpcrdma_rep to detect remotely invalidated MRs. Mark MRs as
invalidated while we are sure the rep is still OK to use.
BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=305
Fixes:
|
||
|---|---|---|
| .. | ||
| backchannel.c | ||
| fmr_ops.c | ||
| frwr_ops.c | ||
| Makefile | ||
| module.c | ||
| rpc_rdma.c | ||
| svc_rdma_backchannel.c | ||
| svc_rdma_marshal.c | ||
| svc_rdma_recvfrom.c | ||
| svc_rdma_rw.c | ||
| svc_rdma_sendto.c | ||
| svc_rdma_transport.c | ||
| svc_rdma.c | ||
| transport.c | ||
| verbs.c | ||
| xprt_rdma.h | ||