fs/nfs/nfs42.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com>
   4  */
   5
   6 #ifndef __LINUX_FS_NFS_NFS4_2_H
   7 #define __LINUX_FS_NFS_NFS4_2_H
   8
   9 /*
  10  * FIXME:  four LAYOUTSTATS calls per compound at most! Do we need to support
  11  * more? Need to consider not to pre-alloc too much for a compound.
  12  */
  13 #define PNFS_LAYOUTSTATS_MAXDEV (4)
  14
  15 /* nfs4.2proc.c */
  16 #ifdef CONFIG_NFS_V4_2
  17 int nfs42_proc_allocate(struct file *, loff_t, loff_t);
  18 ssize_t nfs42_proc_copy(struct file *, loff_t, struct file *, loff_t, size_t,
  19                         struct nl4_server *, nfs4_stateid *, bool);
  20 int nfs42_proc_deallocate(struct file *, loff_t, loff_t);
  21 loff_t nfs42_proc_llseek(struct file *, loff_t, int);
  22 int nfs42_proc_layoutstats_generic(struct nfs_server *,
  23                                    struct nfs42_layoutstat_data *);
  24 int nfs42_proc_clone(struct file *, struct file *, loff_t, loff_t, loff_t);
  25 int nfs42_proc_layouterror(struct pnfs_layout_segment *lseg,
  26                            const struct nfs42_layout_error *errors,
  27                            size_t n);
  28 int nfs42_proc_copy_notify(struct file *, struct file *,
  29                            struct nfs42_copy_notify_res *);
  30 static inline bool nfs42_files_from_same_server(struct file *in,
  31                                                 struct file *out)
  32 {
  33         struct nfs_client *c_in = (NFS_SERVER(file_inode(in)))->nfs_client;
  34         struct nfs_client *c_out = (NFS_SERVER(file_inode(out)))->nfs_client;
  35
  36         return nfs4_check_serverowner_major_id(c_in->cl_serverowner,
  37                                                c_out->cl_serverowner);
  38 }
  39 #endif /* CONFIG_NFS_V4_2 */
  40 #endif /* __LINUX_FS_NFS_NFS4_2_H */