cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pnfs.h (2778B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _FS_NFSD_PNFS_H
      3#define _FS_NFSD_PNFS_H 1
      4
      5#ifdef CONFIG_NFSD_V4
      6#include <linux/exportfs.h>
      7#include <linux/nfsd/export.h>
      8
      9#include "state.h"
     10#include "xdr4.h"
     11
     12struct xdr_stream;
     13
     14struct nfsd4_deviceid_map {
     15	struct list_head	hash;
     16	u64			idx;
     17	int			fsid_type;
     18	u32			fsid[];
     19};
     20
     21struct nfsd4_layout_ops {
     22	u32		notify_types;
     23	bool		disable_recalls;
     24
     25	__be32 (*proc_getdeviceinfo)(struct super_block *sb,
     26			struct svc_rqst *rqstp,
     27			struct nfs4_client *clp,
     28			struct nfsd4_getdeviceinfo *gdevp);
     29	__be32 (*encode_getdeviceinfo)(struct xdr_stream *xdr,
     30			struct nfsd4_getdeviceinfo *gdevp);
     31
     32	__be32 (*proc_layoutget)(struct inode *, const struct svc_fh *fhp,
     33			struct nfsd4_layoutget *lgp);
     34	__be32 (*encode_layoutget)(struct xdr_stream *,
     35			struct nfsd4_layoutget *lgp);
     36
     37	__be32 (*proc_layoutcommit)(struct inode *inode,
     38			struct nfsd4_layoutcommit *lcp);
     39
     40	void (*fence_client)(struct nfs4_layout_stateid *ls);
     41};
     42
     43extern const struct nfsd4_layout_ops *nfsd4_layout_ops[];
     44#ifdef CONFIG_NFSD_BLOCKLAYOUT
     45extern const struct nfsd4_layout_ops bl_layout_ops;
     46#endif
     47#ifdef CONFIG_NFSD_SCSILAYOUT
     48extern const struct nfsd4_layout_ops scsi_layout_ops;
     49#endif
     50#ifdef CONFIG_NFSD_FLEXFILELAYOUT
     51extern const struct nfsd4_layout_ops ff_layout_ops;
     52#endif
     53
     54__be32 nfsd4_preprocess_layout_stateid(struct svc_rqst *rqstp,
     55		struct nfsd4_compound_state *cstate, stateid_t *stateid,
     56		bool create, u32 layout_type, struct nfs4_layout_stateid **lsp);
     57__be32 nfsd4_insert_layout(struct nfsd4_layoutget *lgp,
     58		struct nfs4_layout_stateid *ls);
     59__be32 nfsd4_return_file_layouts(struct svc_rqst *rqstp,
     60		struct nfsd4_compound_state *cstate,
     61		struct nfsd4_layoutreturn *lrp);
     62__be32 nfsd4_return_client_layouts(struct svc_rqst *rqstp,
     63		struct nfsd4_compound_state *cstate,
     64		struct nfsd4_layoutreturn *lrp);
     65int nfsd4_set_deviceid(struct nfsd4_deviceid *id, const struct svc_fh *fhp,
     66		u32 device_generation);
     67struct nfsd4_deviceid_map *nfsd4_find_devid_map(int idx);
     68#endif /* CONFIG_NFSD_V4 */
     69
     70#ifdef CONFIG_NFSD_PNFS
     71void nfsd4_setup_layout_type(struct svc_export *exp);
     72void nfsd4_return_all_client_layouts(struct nfs4_client *);
     73void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
     74		struct nfs4_file *fp);
     75int nfsd4_init_pnfs(void);
     76void nfsd4_exit_pnfs(void);
     77#else
     78struct nfs4_client;
     79struct nfs4_file;
     80
     81static inline void nfsd4_setup_layout_type(struct svc_export *exp)
     82{
     83}
     84
     85static inline void nfsd4_return_all_client_layouts(struct nfs4_client *clp)
     86{
     87}
     88static inline void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
     89		struct nfs4_file *fp)
     90{
     91}
     92static inline void nfsd4_exit_pnfs(void)
     93{
     94}
     95static inline int nfsd4_init_pnfs(void)
     96{
     97	return 0;
     98}
     99#endif /* CONFIG_NFSD_PNFS */
    100#endif /* _FS_NFSD_PNFS_H */