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pNFS/flexfiles: Report RDMA connection errors to the server

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commit 7836d75467 upstream.

The RPC/RDMA driver will return -EPROTO and -ENODEV as connection errors
under certain circumstances. Make sure that we handle them and report
them to the server. If not, we can end up cycling forever in a
LAYOUTGET/LAYOUTRETURN loop.

Fixes: a12f996d34 ("NFSv4/pNFS: Use connections to a DS that are all of the same protocol family")
Cc: stable@vger.kernel.org # 5.11.x
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Trond Myklebust 2022-05-18 16:09:06 -04:00 committed by Greg Kroah-Hartman
parent 5c5639005d
commit ed48237d6b
1 changed files with 4 additions and 0 deletions
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4
fs/nfs/flexfilelayout/flexfilelayout.c
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@ -1131,6 +1131,8 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task,
case -EIO:
case -ETIMEDOUT:
case -EPIPE:
case -EPROTO:
case -ENODEV:
dprintk("%s DS connection error %d\n", __func__,
task->tk_status);
nfs4_delete_deviceid(devid->ld, devid->nfs_client,
@ -1236,6 +1238,8 @@ static void ff_layout_io_track_ds_error(struct pnfs_layout_segment *lseg,
case -ENOBUFS:
case -EPIPE:
case -EPERM:
case -EPROTO:
case -ENODEV:
*op_status = status = NFS4ERR_NXIO;
break;
case -EACCES: