include/linux/nfs_fs_sb.h

   1 #ifndef _NFS_FS_SB
   2 #define _NFS_FS_SB
   3
   4 #include <linux/list.h>
   5 #include <linux/backing-dev.h>
   6
   7 /*
   8  * NFS client parameters stored in the superblock.
   9  */
  10 struct nfs_server {
  11         struct rpc_clnt *       client;         /* RPC client handle */
  12         struct rpc_clnt *       client_sys;     /* 2nd handle for FSINFO */
  13         struct nfs_rpc_ops *    rpc_ops;        /* NFS protocol vector */
  14         struct backing_dev_info backing_dev_info;
  15         int                     flags;          /* various flags */
  16         unsigned int            caps;           /* server capabilities */
  17         unsigned int            rsize;          /* read size */
  18         unsigned int            rpages;         /* read size (in pages) */
  19         unsigned int            wsize;          /* write size */
  20         unsigned int            wpages;         /* write size (in pages) */
  21         unsigned int            dtsize;         /* readdir size */
  22         unsigned int            bsize;          /* server block size */
  23         unsigned int            acregmin;       /* attr cache timeouts */
  24         unsigned int            acregmax;
  25         unsigned int            acdirmin;
  26         unsigned int            acdirmax;
  27         unsigned int            namelen;
  28         char *                  hostname;       /* remote hostname */
  29         struct nfs_fh           fh;
  30         struct sockaddr_in      addr;
  31 #ifdef CONFIG_NFS_V4
  32         /* Our own IP address, as a null-terminated string.
  33          * This is used to generate the clientid, and the callback address.
  34          */
  35         char                    ip_addr[16];
  36         char *                  mnt_path;
  37         struct nfs4_client *    nfs4_state;     /* all NFSv4 state starts here */
  38         struct list_head        nfs4_siblings;  /* List of other nfs_server structs
  39                                                  * that share the same clientid
  40                                                  */
  41         u32                     attr_bitmask[2];/* V4 bitmask representing the set
  42                                                    of attributes supported on this
  43                                                    filesystem */
  44         u32                     acl_bitmask;    /* V4 bitmask representing the ACEs
  45                                                    that are supported on this
  46                                                    filesystem */
  47 #endif
  48 };
  49
  50 /* Server capabilities */
  51 #define NFS_CAP_READDIRPLUS     (1U << 0)
  52 #define NFS_CAP_HARDLINKS       (1U << 1)
  53 #define NFS_CAP_SYMLINKS        (1U << 2)
  54 #define NFS_CAP_ACLS            (1U << 3)
  55
  56 #endif