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