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xprtrdma: Return an errno from rpcrdma_register_external()

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The RPC/RDMA send_request method and the chunk registration code
expects an errno from the registration function. This allows
the upper layers to distinguish between a recoverable failure
(for example, temporary memory exhaustion) and a hard failure
(for example, a bug in the registration logic).

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2014-11-08 20:14:12 -05:00 committed by Anna Schumaker
parent 5d01410fe4
commit 92b98361f1
1 changed files with 2 additions and 2 deletions
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4
net/sunrpc/xprtrdma/verbs.c
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@ -1918,10 +1918,10 @@ rpcrdma_register_external(struct rpcrdma_mr_seg *seg,
break; break;
default: default:
return -1; return -EIO;
} }
if (rc) if (rc)
return -1; return rc;
return nsegs; return nsegs;
} }