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xprtrdma: Enable swap-on-NFS/RDMA

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After adding a swapfile on an NFS/RDMA mount and removing the
normal swap partition, I was able to push the NFS client well
into swap without any issue.

I forgot to swapoff the NFS file before rebooting. This pinned
the NFS mount and the IB core and provider, causing shutdown to
hang. I think this is expected and safe behavior. Probably
shutdown scripts should "swapoff -a" before unmounting any
filesystems.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Tested-By: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2015-10-24 17:26:29 -04:00 committed by Anna Schumaker
parent 8610586d82
commit a045178887
1 changed files with 1 additions and 1 deletions
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2
net/sunrpc/xprtrdma/transport.c
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@ -676,7 +676,7 @@ static void xprt_rdma_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
static int
xprt_rdma_enable_swap(struct rpc_xprt *xprt)
{
return -EINVAL;
return 0;
}
static void