]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef _NFS_FS_SB |
2 | #define _NFS_FS_SB | |
3 | ||
4 | #include <linux/list.h> | |
5 | #include <linux/backing-dev.h> | |
9157c31d | 6 | #include <linux/idr.h> |
ef818a28 | 7 | #include <linux/wait.h> |
557134a3 AA |
8 | #include <linux/nfs_xdr.h> |
9 | #include <linux/sunrpc/xprt.h> | |
ef818a28 | 10 | |
60063497 | 11 | #include <linux/atomic.h> |
1da177e4 | 12 | |
557134a3 | 13 | struct nfs4_session; |
d9ef5a8c | 14 | struct nfs_iostats; |
9289e7f9 | 15 | struct nlm_host; |
cccef3b9 AA |
16 | struct nfs4_sequence_args; |
17 | struct nfs4_sequence_res; | |
18 | struct nfs_server; | |
97dc1359 | 19 | struct nfs4_minor_version_ops; |
79d4e1f0 | 20 | struct nfs41_server_scope; |
7d2ed9ac | 21 | struct nfs41_impl_id; |
d9ef5a8c | 22 | |
24c8dbbb DH |
23 | /* |
24 | * The nfs_client identifies our client state to the server. | |
25 | */ | |
26 | struct nfs_client { | |
27 | atomic_t cl_count; | |
2a4c8994 | 28 | atomic_t cl_mds_count; |
24c8dbbb DH |
29 | int cl_cons_state; /* current construction state (-ve: init error) */ |
30 | #define NFS_CS_READY 0 /* ready to be used */ | |
31 | #define NFS_CS_INITING 1 /* busy initialising */ | |
76db6d95 | 32 | #define NFS_CS_SESSION_INITING 2 /* busy initialising session */ |
24c8dbbb | 33 | unsigned long cl_res_state; /* NFS resources state */ |
24c8dbbb DH |
34 | #define NFS_CS_CALLBACK 1 /* - callback started */ |
35 | #define NFS_CS_IDMAP 2 /* - idmap started */ | |
5dd3177a | 36 | #define NFS_CS_RENEWD 3 /* - renewd started */ |
d3b4c9d7 | 37 | #define NFS_CS_STOP_RENEW 4 /* no more state to renew */ |
d6fb79d4 | 38 | #define NFS_CS_CHECK_LEASE_TIME 5 /* need to check lease time */ |
4bf590e0 CL |
39 | unsigned long cl_flags; /* behavior switches */ |
40 | #define NFS_CS_NORESVPORT 0 /* - use ephemeral src port */ | |
41 | #define NFS_CS_DISCRTRY 1 /* - disconnect on RPC retry */ | |
89652617 | 42 | #define NFS_CS_MIGRATION 2 /* - transparent state migr */ |
6e4cffd7 CL |
43 | struct sockaddr_storage cl_addr; /* server identifier */ |
44 | size_t cl_addrlen; | |
24c8dbbb DH |
45 | char * cl_hostname; /* hostname of server */ |
46 | struct list_head cl_share_link; /* link in global client list */ | |
47 | struct list_head cl_superblocks; /* List of nfs_server structs */ | |
48 | ||
49 | struct rpc_clnt * cl_rpcclient; | |
8fa5c000 | 50 | const struct nfs_rpc_ops *rpc_ops; /* NFS protocol vector */ |
59dca3b2 | 51 | int cl_proto; /* Network transport protocol */ |
ab7017a3 | 52 | struct nfs_subversion * cl_nfs_mod; /* pointer to nfs version module */ |
24c8dbbb | 53 | |
94a417f3 | 54 | u32 cl_minorversion;/* NFSv4 minorversion */ |
7c67db3a TM |
55 | struct rpc_cred *cl_machine_cred; |
56 | ||
89d77c8f | 57 | #if IS_ENABLED(CONFIG_NFS_V4) |
24c8dbbb | 58 | u64 cl_clientid; /* constant */ |
fd954ae1 | 59 | nfs4_verifier cl_confirm; /* Clientid verifier */ |
24c8dbbb DH |
60 | unsigned long cl_state; |
61 | ||
24c8dbbb DH |
62 | spinlock_t cl_lock; |
63 | ||
64 | unsigned long cl_lease_time; | |
65 | unsigned long cl_last_renewal; | |
52bad64d | 66 | struct delayed_work cl_renewd; |
24c8dbbb DH |
67 | |
68 | struct rpc_wait_queue cl_rpcwaitq; | |
69 | ||
24c8dbbb DH |
70 | /* idmapper */ |
71 | struct idmap * cl_idmap; | |
72 | ||
73 | /* Our own IP address, as a null-terminated string. | |
de734831 | 74 | * This is used to generate the mv0 callback address. |
24c8dbbb | 75 | */ |
4392f259 | 76 | char cl_ipaddr[48]; |
f4eecd5d | 77 | u32 cl_cb_ident; /* v4.0 callback identifier */ |
97dc1359 | 78 | const struct nfs4_minor_version_ops *cl_mvops; |
14727281 | 79 | |
99fe60d0 BH |
80 | /* The sequence id to use for the next CREATE_SESSION */ |
81 | u32 cl_seqid; | |
82 | /* The flags used for obtaining the clientid during EXCHANGE_ID */ | |
83 | u32 cl_exchange_flags; | |
722baafc | 84 | struct nfs4_session *cl_session; /* shared session */ |
05f4c350 | 85 | bool cl_preserve_clid; |
acdeb69d | 86 | struct nfs41_server_owner *cl_serverowner; |
79d4e1f0 | 87 | struct nfs41_server_scope *cl_serverscope; |
59155546 | 88 | struct nfs41_impl_id *cl_implid; |
0400a6b0 | 89 | #endif /* CONFIG_NFS_V4 */ |
557134a3 | 90 | |
14727281 DH |
91 | #ifdef CONFIG_NFS_FSCACHE |
92 | struct fscache_cookie *fscache; /* client index cache cookie */ | |
93 | #endif | |
78fe0f41 | 94 | |
73ea666c | 95 | struct net *cl_net; |
24c8dbbb DH |
96 | }; |
97 | ||
1da177e4 LT |
98 | /* |
99 | * NFS client parameters stored in the superblock. | |
100 | */ | |
101 | struct nfs_server { | |
27951bd2 | 102 | struct nfs_client * nfs_client; /* shared client and NFS4 state */ |
54ceac45 DH |
103 | struct list_head client_link; /* List of other nfs_server structs |
104 | * that share the same client | |
105 | */ | |
106 | struct list_head master_link; /* link in master servers list */ | |
1da177e4 | 107 | struct rpc_clnt * client; /* RPC client handle */ |
b7fa0554 | 108 | struct rpc_clnt * client_acl; /* ACL RPC client handle */ |
9289e7f9 | 109 | struct nlm_host *nlm_host; /* NLM client handle */ |
003cb608 | 110 | struct nfs_iostats __percpu *io_stats; /* I/O statistics */ |
1da177e4 | 111 | struct backing_dev_info backing_dev_info; |
277866a0 | 112 | atomic_long_t writeback; /* number of writeback pages */ |
1da177e4 LT |
113 | int flags; /* various flags */ |
114 | unsigned int caps; /* server capabilities */ | |
115 | unsigned int rsize; /* read size */ | |
116 | unsigned int rpages; /* read size (in pages) */ | |
117 | unsigned int wsize; /* write size */ | |
118 | unsigned int wpages; /* write size (in pages) */ | |
119 | unsigned int wtmult; /* server disk block size */ | |
120 | unsigned int dtsize; /* readdir size */ | |
f22d6d79 | 121 | unsigned short port; /* "port=" setting */ |
1da177e4 LT |
122 | unsigned int bsize; /* server block size */ |
123 | unsigned int acregmin; /* attr cache timeouts */ | |
124 | unsigned int acregmax; | |
125 | unsigned int acdirmin; | |
126 | unsigned int acdirmax; | |
127 | unsigned int namelen; | |
c6a6f19e DH |
128 | unsigned int options; /* extra options enabled by mount */ |
129 | #define NFS_OPTION_FSCACHE 0x00000001 /* - local caching enabled */ | |
89652617 | 130 | #define NFS_OPTION_MIGRATION 0x00000002 /* - NFSv4 migration enabled */ |
54ceac45 | 131 | |
8b4bdcf8 | 132 | struct nfs_fsid fsid; |
54ceac45 | 133 | __u64 maxfilesize; /* maximum file size */ |
6b96724e | 134 | struct timespec time_delta; /* smallest time granularity */ |
67ec9f46 | 135 | unsigned long mount_time; /* when this fs was mounted */ |
54ceac45 DH |
136 | dev_t s_dev; /* superblock dev numbers */ |
137 | ||
08734048 DH |
138 | #ifdef CONFIG_NFS_FSCACHE |
139 | struct nfs_fscache_key *fscache_key; /* unique key for superblock */ | |
140 | struct fscache_cookie *fscache; /* superblock cookie */ | |
141 | #endif | |
142 | ||
a00ed25c | 143 | u32 pnfs_blksize; /* layout_blksize attr */ |
89d77c8f | 144 | #if IS_ENABLED(CONFIG_NFS_V4) |
dae100c2 | 145 | u32 attr_bitmask[3];/* V4 bitmask representing the set |
1da177e4 LT |
146 | of attributes supported on this |
147 | filesystem */ | |
a65318bf TM |
148 | u32 cache_consistency_bitmask[2]; |
149 | /* V4 bitmask representing the subset | |
150 | of change attribute, size, ctime | |
151 | and mtime attributes supported by | |
152 | the server */ | |
1da177e4 LT |
153 | u32 acl_bitmask; /* V4 bitmask representing the ACEs |
154 | that are supported on this | |
155 | filesystem */ | |
264e6351 CL |
156 | u32 fh_expire_type; /* V4 bitmask representing file |
157 | handle volatility type for | |
158 | this filesystem */ | |
85e174ba | 159 | struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */ |
f7e8917a | 160 | struct rpc_wait_queue roc_rpcwaitq; |
2f9fd182 | 161 | void *pnfs_ld_data; /* per mount point data */ |
24d292b8 CL |
162 | |
163 | /* the following fields are protected by nfs_client->cl_lock */ | |
164 | struct rb_root state_owners; | |
1da177e4 | 165 | #endif |
9157c31d | 166 | struct ida openowner_id; |
d2d7ce28 | 167 | struct ida lockowner_id; |
0aaaf5c4 | 168 | struct list_head state_owners_lru; |
6382a441 | 169 | struct list_head layouts; |
d3978bb3 | 170 | struct list_head delegations; |
54ceac45 | 171 | void (*destroy)(struct nfs_server *); |
ef818a28 SD |
172 | |
173 | atomic_t active; /* Keep trace of any activity to this server */ | |
3f8400d1 CL |
174 | |
175 | /* mountd-related mount options */ | |
176 | struct sockaddr_storage mountd_address; | |
177 | size_t mountd_addrlen; | |
178 | u32 mountd_version; | |
179 | unsigned short mountd_port; | |
180 | unsigned short mountd_protocol; | |
1da177e4 LT |
181 | }; |
182 | ||
183 | /* Server capabilities */ | |
184 | #define NFS_CAP_READDIRPLUS (1U << 0) | |
185 | #define NFS_CAP_HARDLINKS (1U << 1) | |
186 | #define NFS_CAP_SYMLINKS (1U << 2) | |
187 | #define NFS_CAP_ACLS (1U << 3) | |
188 | #define NFS_CAP_ATOMIC_OPEN (1U << 4) | |
62ab460c TM |
189 | #define NFS_CAP_CHANGE_ATTR (1U << 5) |
190 | #define NFS_CAP_FILEID (1U << 6) | |
191 | #define NFS_CAP_MODE (1U << 7) | |
192 | #define NFS_CAP_NLINK (1U << 8) | |
193 | #define NFS_CAP_OWNER (1U << 9) | |
194 | #define NFS_CAP_OWNER_GROUP (1U << 10) | |
195 | #define NFS_CAP_ATIME (1U << 11) | |
196 | #define NFS_CAP_CTIME (1U << 12) | |
197 | #define NFS_CAP_MTIME (1U << 13) | |
0df5dd4a | 198 | #define NFS_CAP_POSIX_LOCK (1U << 14) |
b064eca2 | 199 | #define NFS_CAP_UIDGID_NOMAP (1U << 15) |
3b66486c | 200 | #define NFS_CAP_STATEID_NFSV41 (1U << 16) |
1da177e4 LT |
201 | |
202 | #endif |