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67 lines
1.6 KiB
67 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* include/linux/nfs_ssc.h |
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* |
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* Author: Dai Ngo <[email protected]> |
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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/nfs_fs.h> |
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extern struct nfs_ssc_client_ops_tbl nfs_ssc_client_tbl; |
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/* |
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* NFS_V4 |
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*/ |
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struct nfs4_ssc_client_ops { |
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struct file *(*sco_open)(struct vfsmount *ss_mnt, |
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struct nfs_fh *src_fh, nfs4_stateid *stateid); |
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void (*sco_close)(struct file *filep); |
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}; |
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/* |
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* NFS_FS |
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*/ |
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struct nfs_ssc_client_ops { |
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void (*sco_sb_deactive)(struct super_block *sb); |
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}; |
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struct nfs_ssc_client_ops_tbl { |
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const struct nfs4_ssc_client_ops *ssc_nfs4_ops; |
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const struct nfs_ssc_client_ops *ssc_nfs_ops; |
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}; |
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extern void nfs42_ssc_register_ops(void); |
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extern void nfs42_ssc_unregister_ops(void); |
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extern void nfs42_ssc_register(const struct nfs4_ssc_client_ops *ops); |
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extern void nfs42_ssc_unregister(const struct nfs4_ssc_client_ops *ops); |
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#ifdef CONFIG_NFSD_V4_2_INTER_SSC |
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static inline struct file *nfs42_ssc_open(struct vfsmount *ss_mnt, |
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struct nfs_fh *src_fh, nfs4_stateid *stateid) |
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{ |
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if (nfs_ssc_client_tbl.ssc_nfs4_ops) |
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return (*nfs_ssc_client_tbl.ssc_nfs4_ops->sco_open)(ss_mnt, src_fh, stateid); |
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return ERR_PTR(-EIO); |
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} |
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static inline void nfs42_ssc_close(struct file *filep) |
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{ |
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if (nfs_ssc_client_tbl.ssc_nfs4_ops) |
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(*nfs_ssc_client_tbl.ssc_nfs4_ops->sco_close)(filep); |
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} |
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#endif |
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/* |
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* NFS_FS |
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*/ |
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extern void nfs_ssc_register(const struct nfs_ssc_client_ops *ops); |
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extern void nfs_ssc_unregister(const struct nfs_ssc_client_ops *ops); |
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static inline void nfs_do_sb_deactive(struct super_block *sb) |
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{ |
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if (nfs_ssc_client_tbl.ssc_nfs_ops) |
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(*nfs_ssc_client_tbl.ssc_nfs_ops->sco_sb_deactive)(sb); |
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}
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