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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* fs/nfs_common/nfs_ssc_comm.c
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*
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* Helper for knfsd's SSC to access ops in NFS client modules
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*
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* Author: Dai Ngo <dai.ngo@oracle.com>
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*
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* Copyright (c) 2020, Oracle and/or its affiliates.
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*/
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/nfs_ssc.h>
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#include "../nfs/nfs4_fs.h"
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MODULE_LICENSE("GPL");
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struct nfs_ssc_client_ops_tbl nfs_ssc_client_tbl;
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EXPORT_SYMBOL_GPL(nfs_ssc_client_tbl);
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#ifdef CONFIG_NFS_V4_2
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/**
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* nfs42_ssc_register - install the NFS_V4 client ops in the nfs_ssc_client_tbl
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* @ops: NFS_V4 ops to be installed
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*
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* Return values:
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* None
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*/
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void nfs42_ssc_register(const struct nfs4_ssc_client_ops *ops)
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{
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nfs_ssc_client_tbl.ssc_nfs4_ops = ops;
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}
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EXPORT_SYMBOL_GPL(nfs42_ssc_register);
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/**
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* nfs42_ssc_unregister - uninstall the NFS_V4 client ops from
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* the nfs_ssc_client_tbl
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* @ops: ops to be uninstalled
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*
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* Return values:
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* None
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*/
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void nfs42_ssc_unregister(const struct nfs4_ssc_client_ops *ops)
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{
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if (nfs_ssc_client_tbl.ssc_nfs4_ops != ops)
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return;
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nfs_ssc_client_tbl.ssc_nfs4_ops = NULL;
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}
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EXPORT_SYMBOL_GPL(nfs42_ssc_unregister);
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#endif /* CONFIG_NFS_V4_2 */
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#ifdef CONFIG_NFS_V4_2
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/**
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* nfs_ssc_register - install the NFS_FS client ops in the nfs_ssc_client_tbl
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* @ops: NFS_FS ops to be installed
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*
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* Return values:
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* None
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*/
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void nfs_ssc_register(const struct nfs_ssc_client_ops *ops)
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{
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nfs_ssc_client_tbl.ssc_nfs_ops = ops;
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}
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EXPORT_SYMBOL_GPL(nfs_ssc_register);
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/**
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* nfs_ssc_unregister - uninstall the NFS_FS client ops from
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* the nfs_ssc_client_tbl
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* @ops: ops to be uninstalled
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*
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* Return values:
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* None
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*/
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void nfs_ssc_unregister(const struct nfs_ssc_client_ops *ops)
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{
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if (nfs_ssc_client_tbl.ssc_nfs_ops != ops)
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return;
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nfs_ssc_client_tbl.ssc_nfs_ops = NULL;
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}
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EXPORT_SYMBOL_GPL(nfs_ssc_unregister);
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#else
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void nfs_ssc_register(const struct nfs_ssc_client_ops *ops)
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{
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}
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EXPORT_SYMBOL_GPL(nfs_ssc_register);
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void nfs_ssc_unregister(const struct nfs_ssc_client_ops *ops)
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{
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}
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EXPORT_SYMBOL_GPL(nfs_ssc_unregister);
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#endif /* CONFIG_NFS_V4_2 */
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