diff options
Diffstat (limited to 'include/linux/nfs_fs_sb.h')
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 182 |
1 files changed, 150 insertions, 32 deletions
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index d2212432c456..d30c0245031c 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _NFS_FS_SB #define _NFS_FS_SB @@ -7,8 +8,10 @@ #include <linux/wait.h> #include <linux/nfs_xdr.h> #include <linux/sunrpc/xprt.h> +#include <linux/nfslocalio.h> #include <linux/atomic.h> +#include <linux/refcount.h> struct nfs4_session; struct nfs_iostats; @@ -24,7 +27,7 @@ struct nfs41_impl_id; * The nfs_client identifies our client state to the server. */ struct nfs_client { - atomic_t cl_count; + refcount_t cl_count; atomic_t cl_mds_count; int cl_cons_state; /* current construction state (-ve: init error) */ #define NFS_CS_READY 0 /* ready to be used */ @@ -41,9 +44,17 @@ struct nfs_client { #define NFS_CS_DISCRTRY 1 /* - disconnect on RPC retry */ #define NFS_CS_MIGRATION 2 /* - transparent state migr */ #define NFS_CS_INFINITE_SLOTS 3 /* - don't limit TCP slots */ +#define NFS_CS_NO_RETRANS_TIMEOUT 4 /* - Disable retransmit timeouts */ +#define NFS_CS_TSM_POSSIBLE 5 /* - Maybe state migration */ +#define NFS_CS_NOPING 6 /* - don't ping on connect */ +#define NFS_CS_DS 7 /* - Server is a DS */ +#define NFS_CS_REUSEPORT 8 /* - reuse src port on reconnect */ +#define NFS_CS_PNFS 9 /* - Server used for pnfs */ +#define NFS_CS_NETUNREACH_FATAL 10 /* - ENETUNREACH errors are fatal */ struct sockaddr_storage cl_addr; /* server identifier */ size_t cl_addrlen; char * cl_hostname; /* hostname of server */ + char * cl_acceptor; /* GSSAPI acceptor name */ struct list_head cl_share_link; /* link in global client list */ struct list_head cl_superblocks; /* List of nfs_server structs */ @@ -53,9 +64,13 @@ struct nfs_client { struct nfs_subversion * cl_nfs_mod; /* pointer to nfs version module */ u32 cl_minorversion;/* NFSv4 minorversion */ - struct rpc_cred *cl_machine_cred; + unsigned int cl_nconnect; /* Number of connections */ + unsigned int cl_max_connect; /* max number of xprts allowed */ + const char * cl_principal; /* used for machine cred */ + struct xprtsec_parms cl_xprtsec; /* xprt security policy */ #if IS_ENABLED(CONFIG_NFS_V4) + struct list_head cl_ds_clients; /* auth flavor data servers */ u64 cl_clientid; /* constant */ nfs4_verifier cl_confirm; /* Clientid verifier */ unsigned long cl_state; @@ -71,12 +86,15 @@ struct nfs_client { /* idmapper */ struct idmap * cl_idmap; - /* Our own IP address, as a null-terminated string. - * This is used to generate the mv0 callback address. - */ - char cl_ipaddr[48]; + /* Client owner identifier */ + const char * cl_owner_id; + u32 cl_cb_ident; /* v4.0 callback identifier */ const struct nfs4_minor_version_ops *cl_mvops; + unsigned long cl_mig_gen; + + /* NFSv4.0 transport blocking */ + struct nfs4_slot_table *cl_slot_tbl; /* The sequence id to use for the next CREATE_SESSION */ u32 cl_seqid; @@ -87,13 +105,36 @@ struct nfs_client { struct nfs41_server_owner *cl_serverowner; struct nfs41_server_scope *cl_serverscope; struct nfs41_impl_id *cl_implid; + /* nfs 4.1+ state protection modes: */ + unsigned long cl_sp4_flags; +#define NFS_SP4_MACH_CRED_MINIMAL 1 /* Minimal sp4_mach_cred - state ops + * must use machine cred */ +#define NFS_SP4_MACH_CRED_CLEANUP 2 /* CLOSE and LOCKU */ +#define NFS_SP4_MACH_CRED_SECINFO 3 /* SECINFO and SECINFO_NO_NAME */ +#define NFS_SP4_MACH_CRED_STATEID 4 /* TEST_STATEID and FREE_STATEID */ +#define NFS_SP4_MACH_CRED_WRITE 5 /* WRITE */ +#define NFS_SP4_MACH_CRED_COMMIT 6 /* COMMIT */ +#define NFS_SP4_MACH_CRED_PNFS_CLEANUP 7 /* LAYOUTRETURN */ +#if IS_ENABLED(CONFIG_NFS_V4_1) + wait_queue_head_t cl_lock_waitq; +#endif /* CONFIG_NFS_V4_1 */ #endif /* CONFIG_NFS_V4 */ -#ifdef CONFIG_NFS_FSCACHE - struct fscache_cookie *fscache; /* client index cache cookie */ -#endif - + /* Our own IP address, as a null-terminated string. + * This is used to generate the mv0 callback address. + */ + char cl_ipaddr[48]; struct net *cl_net; + netns_tracker cl_ns_tracker; + struct list_head pending_cb_stateids; + struct rcu_head rcu; + +#if IS_ENABLED(CONFIG_NFS_LOCALIO) + struct timespec64 cl_nfssvc_boot; + seqlock_t cl_boot_lock; + nfs_uuid_t cl_uuid; + struct work_struct cl_local_probe_work; +#endif /* CONFIG_NFS_LOCALIO */ }; /* @@ -109,38 +150,77 @@ struct nfs_server { struct rpc_clnt * client_acl; /* ACL RPC client handle */ struct nlm_host *nlm_host; /* NLM client handle */ struct nfs_iostats __percpu *io_stats; /* I/O statistics */ - struct backing_dev_info backing_dev_info; + wait_queue_head_t write_congestion_wait; /* wait until write congestion eases */ atomic_long_t writeback; /* number of writeback pages */ - int flags; /* various flags */ + unsigned int write_congested;/* flag set when writeback gets too high */ + unsigned int flags; /* various flags */ + +/* The following are for internal use only. Also see uapi/linux/nfs_mount.h */ +#define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000 +#define NFS_MOUNT_LOOKUP_CACHE_NONE 0x20000 +#define NFS_MOUNT_NORESVPORT 0x40000 +#define NFS_MOUNT_LEGACY_INTERFACE 0x80000 +#define NFS_MOUNT_LOCAL_FLOCK 0x100000 +#define NFS_MOUNT_LOCAL_FCNTL 0x200000 +#define NFS_MOUNT_SOFTERR 0x400000 +#define NFS_MOUNT_SOFTREVAL 0x800000 +#define NFS_MOUNT_WRITE_EAGER 0x01000000 +#define NFS_MOUNT_WRITE_WAIT 0x02000000 +#define NFS_MOUNT_TRUNK_DISCOVERY 0x04000000 +#define NFS_MOUNT_SHUTDOWN 0x08000000 +#define NFS_MOUNT_NO_ALIGNWRITE 0x10000000 +#define NFS_MOUNT_FORCE_RDIRPLUS 0x20000000 +#define NFS_MOUNT_NETUNREACH_FATAL 0x40000000 + unsigned int caps; /* server capabilities */ + __u64 fattr_valid; /* Valid attributes */ unsigned int rsize; /* read size */ unsigned int rpages; /* read size (in pages) */ unsigned int wsize; /* write size */ - unsigned int wpages; /* write size (in pages) */ unsigned int wtmult; /* server disk block size */ unsigned int dtsize; /* readdir size */ unsigned short port; /* "port=" setting */ unsigned int bsize; /* server block size */ +#ifdef CONFIG_NFS_V4_2 + unsigned int gxasize; /* getxattr size */ + unsigned int sxasize; /* setxattr size */ + unsigned int lxasize; /* listxattr size */ +#endif unsigned int acregmin; /* attr cache timeouts */ unsigned int acregmax; unsigned int acdirmin; unsigned int acdirmax; unsigned int namelen; unsigned int options; /* extra options enabled by mount */ + unsigned int clone_blksize; /* granularity of a CLONE operation */ #define NFS_OPTION_FSCACHE 0x00000001 /* - local caching enabled */ #define NFS_OPTION_MIGRATION 0x00000002 /* - NFSv4 migration enabled */ + enum nfs4_change_attr_type + change_attr_type;/* Description of change attribute */ + struct nfs_fsid fsid; + int s_sysfs_id; /* sysfs dentry index */ __u64 maxfilesize; /* maximum file size */ - struct timespec time_delta; /* smallest time granularity */ unsigned long mount_time; /* when this fs was mounted */ + struct super_block *super; /* VFS super block */ dev_t s_dev; /* superblock dev numbers */ + struct nfs_auth_info auth_info; /* parsed auth flavors */ #ifdef CONFIG_NFS_FSCACHE - struct nfs_fscache_key *fscache_key; /* unique key for superblock */ - struct fscache_cookie *fscache; /* superblock cookie */ + struct fscache_volume *fscache; /* superblock cookie */ + char *fscache_uniq; /* Uniquifier (or NULL) */ #endif + /* The following #defines numerically match the NFSv4 equivalents */ +#define NFS_FH_NOEXPIRE_WITH_OPEN (0x1) +#define NFS_FH_VOLATILE_ANY (0x2) +#define NFS_FH_VOL_MIGRATION (0x4) +#define NFS_FH_VOL_RENAME (0x8) +#define NFS_FH_RENAME_UNSAFE (NFS_FH_VOLATILE_ANY | NFS_FH_VOL_RENAME) + u32 fh_expire_type; /* V4 bitmask representing file + handle volatility type for + this filesystem */ u32 pnfs_blksize; /* layout_blksize attr */ #if IS_ENABLED(CONFIG_NFS_V4) u32 attr_bitmask[3];/* V4 bitmask representing the set @@ -151,6 +231,11 @@ struct nfs_server { set of attributes supported on this filesystem excluding the label support bit. */ + u32 exclcreat_bitmask[3]; + /* V4 bitmask representing the + set of attributes supported + on this filesystem for the + exclusive create. */ u32 cache_consistency_bitmask[3]; /* V4 bitmask representing the subset of change attribute, size, ctime @@ -159,21 +244,33 @@ struct nfs_server { u32 acl_bitmask; /* V4 bitmask representing the ACEs that are supported on this filesystem */ - u32 fh_expire_type; /* V4 bitmask representing file - handle volatility type for - this filesystem */ struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */ struct rpc_wait_queue roc_rpcwaitq; - void *pnfs_ld_data; /* per mount point data */ /* the following fields are protected by nfs_client->cl_lock */ struct rb_root state_owners; #endif - struct ida openowner_id; - struct ida lockowner_id; + atomic64_t owner_ctr; struct list_head state_owners_lru; struct list_head layouts; struct list_head delegations; + atomic_long_t nr_active_delegations; + unsigned int delegation_hash_mask; + struct hlist_head *delegation_hash_table; + struct list_head ss_copies; + struct list_head ss_src_copies; + + unsigned long delegation_flags; +#define NFS4SERV_DELEGRETURN (1) +#define NFS4SERV_DELEGATION_EXPIRED (2) +#define NFS4SERV_DELEGRETURN_DELAYED (3) + unsigned long delegation_gen; + unsigned long mig_gen; + unsigned long mig_status; +#define NFS_MIG_IN_TRANSITION (1) +#define NFS_MIG_FAILED (2) +#define NFS_MIG_TSM_POSSIBLE (3) + void (*destroy)(struct nfs_server *); atomic_t active; /* Keep trace of any activity to this server */ @@ -184,6 +281,16 @@ struct nfs_server { u32 mountd_version; unsigned short mountd_port; unsigned short mountd_protocol; + struct rpc_wait_queue uoc_rpcwaitq; + + /* XDR related information */ + unsigned int read_hdrsize; + + /* User namespace info */ + const struct cred *cred; + bool has_sec_mnt_opts; + struct kobject kobj; + struct rcu_head rcu; }; /* Server capabilities */ @@ -192,19 +299,30 @@ struct nfs_server { #define NFS_CAP_SYMLINKS (1U << 2) #define NFS_CAP_ACLS (1U << 3) #define NFS_CAP_ATOMIC_OPEN (1U << 4) -#define NFS_CAP_CHANGE_ATTR (1U << 5) -#define NFS_CAP_FILEID (1U << 6) -#define NFS_CAP_MODE (1U << 7) -#define NFS_CAP_NLINK (1U << 8) -#define NFS_CAP_OWNER (1U << 9) -#define NFS_CAP_OWNER_GROUP (1U << 10) -#define NFS_CAP_ATIME (1U << 11) -#define NFS_CAP_CTIME (1U << 12) -#define NFS_CAP_MTIME (1U << 13) +#define NFS_CAP_LGOPEN (1U << 5) +#define NFS_CAP_CASE_INSENSITIVE (1U << 6) +#define NFS_CAP_CASE_PRESERVING (1U << 7) +#define NFS_CAP_REBOOT_LAYOUTRETURN (1U << 8) +#define NFS_CAP_OFFLOAD_STATUS (1U << 9) +#define NFS_CAP_ZERO_RANGE (1U << 10) +#define NFS_CAP_OPEN_XOR (1U << 12) +#define NFS_CAP_DELEGTIME (1U << 13) #define NFS_CAP_POSIX_LOCK (1U << 14) #define NFS_CAP_UIDGID_NOMAP (1U << 15) #define NFS_CAP_STATEID_NFSV41 (1U << 16) #define NFS_CAP_ATOMIC_OPEN_V1 (1U << 17) #define NFS_CAP_SECURITY_LABEL (1U << 18) - +#define NFS_CAP_SEEK (1U << 19) +#define NFS_CAP_ALLOCATE (1U << 20) +#define NFS_CAP_DEALLOCATE (1U << 21) +#define NFS_CAP_LAYOUTSTATS (1U << 22) +#define NFS_CAP_CLONE (1U << 23) +#define NFS_CAP_COPY (1U << 24) +#define NFS_CAP_OFFLOAD_CANCEL (1U << 25) +#define NFS_CAP_LAYOUTERROR (1U << 26) +#define NFS_CAP_COPY_NOTIFY (1U << 27) +#define NFS_CAP_XATTR (1U << 28) +#define NFS_CAP_READ_PLUS (1U << 29) +#define NFS_CAP_FS_LOCATIONS (1U << 30) +#define NFS_CAP_MOVEABLE (1U << 31) #endif |