4 #include <linux/list.h>
5 #include <linux/backing-dev.h>
6 #include <linux/wait.h>
8 #include <asm/atomic.h>
14 * The nfs_client identifies our client state to the server.
18 int cl_cons_state
; /* current construction state (-ve: init error) */
19 #define NFS_CS_READY 0 /* ready to be used */
20 #define NFS_CS_INITING 1 /* busy initialising */
21 unsigned long cl_res_state
; /* NFS resources state */
22 #define NFS_CS_CALLBACK 1 /* - callback started */
23 #define NFS_CS_IDMAP 2 /* - idmap started */
24 #define NFS_CS_RENEWD 3 /* - renewd started */
25 struct sockaddr_storage cl_addr
; /* server identifier */
27 char * cl_hostname
; /* hostname of server */
28 struct list_head cl_share_link
; /* link in global client list */
29 struct list_head cl_superblocks
; /* List of nfs_server structs */
31 struct rpc_clnt
* cl_rpcclient
;
32 const struct nfs_rpc_ops
*rpc_ops
; /* NFS protocol vector */
33 int cl_proto
; /* Network transport protocol */
35 struct rpc_cred
*cl_machine_cred
;
38 u64 cl_clientid
; /* constant */
39 nfs4_verifier cl_confirm
;
40 unsigned long cl_state
;
42 struct rb_root cl_openowner_id
;
43 struct rb_root cl_lockowner_id
;
45 struct list_head cl_delegations
;
46 struct rb_root cl_state_owners
;
49 unsigned long cl_lease_time
;
50 unsigned long cl_last_renewal
;
51 struct delayed_work cl_renewd
;
53 struct rpc_wait_queue cl_rpcwaitq
;
55 /* used for the setclientid verifier */
56 struct timespec cl_boot_time
;
59 struct idmap
* cl_idmap
;
61 /* Our own IP address, as a null-terminated string.
62 * This is used to generate the clientid, and the callback address.
65 unsigned char cl_id_uniquifier
;
70 * NFS client parameters stored in the superblock.
73 struct nfs_client
* nfs_client
; /* shared client and NFS4 state */
74 struct list_head client_link
; /* List of other nfs_server structs
75 * that share the same client
77 struct list_head master_link
; /* link in master servers list */
78 struct rpc_clnt
* client
; /* RPC client handle */
79 struct rpc_clnt
* client_acl
; /* ACL RPC client handle */
80 struct nlm_host
*nlm_host
; /* NLM client handle */
81 struct nfs_iostats
* io_stats
; /* I/O statistics */
82 struct backing_dev_info backing_dev_info
;
83 atomic_long_t writeback
; /* number of writeback pages */
84 int flags
; /* various flags */
85 unsigned int caps
; /* server capabilities */
86 unsigned int rsize
; /* read size */
87 unsigned int rpages
; /* read size (in pages) */
88 unsigned int wsize
; /* write size */
89 unsigned int wpages
; /* write size (in pages) */
90 unsigned int wtmult
; /* server disk block size */
91 unsigned int dtsize
; /* readdir size */
92 unsigned short port
; /* "port=" setting */
93 unsigned int bsize
; /* server block size */
94 unsigned int acregmin
; /* attr cache timeouts */
95 unsigned int acregmax
;
96 unsigned int acdirmin
;
97 unsigned int acdirmax
;
99 unsigned int options
; /* extra options enabled by mount */
100 #define NFS_OPTION_FSCACHE 0x00000001 /* - local caching enabled */
102 struct nfs_fsid fsid
;
103 __u64 maxfilesize
; /* maximum file size */
104 unsigned long mount_time
; /* when this fs was mounted */
105 dev_t s_dev
; /* superblock dev numbers */
108 u32 attr_bitmask
[2];/* V4 bitmask representing the set
109 of attributes supported on this
111 u32 cache_consistency_bitmask
[2];
112 /* V4 bitmask representing the subset
113 of change attribute, size, ctime
114 and mtime attributes supported by
116 u32 acl_bitmask
; /* V4 bitmask representing the ACEs
117 that are supported on this
120 void (*destroy
)(struct nfs_server
*);
122 atomic_t active
; /* Keep trace of any activity to this server */
124 /* mountd-related mount options */
125 struct sockaddr_storage mountd_address
;
126 size_t mountd_addrlen
;
128 unsigned short mountd_port
;
129 unsigned short mountd_protocol
;
132 /* Server capabilities */
133 #define NFS_CAP_READDIRPLUS (1U << 0)
134 #define NFS_CAP_HARDLINKS (1U << 1)
135 #define NFS_CAP_SYMLINKS (1U << 2)
136 #define NFS_CAP_ACLS (1U << 3)
137 #define NFS_CAP_ATOMIC_OPEN (1U << 4)