NFSv4.1 return the LAYOUT for each file with failed DS connection I/O
First mark the deviceid invalid to prevent any future use. Then fence all files involved in I/O to a DS with a connection error by sending a LAYOUTRETURN. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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@ -205,9 +205,8 @@ static int filelayout_async_handle_error(struct rpc_task *task,
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case -EPIPE:
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dprintk("%s DS connection error %d\n", __func__,
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task->tk_status);
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if (!filelayout_test_devid_invalid(devid))
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_pnfs_return_layout(inode);
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filelayout_mark_devid_invalid(devid);
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_pnfs_return_layout(inode);
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rpc_wake_up(&tbl->slot_tbl_waitq);
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nfs4_ds_disconnect(clp);
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/* fall through */
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