struct pagevec;
struct afs_call;
struct afs_vnode;
+struct afs_server_probe;
/*
* Partial file-locking emulation mode. (The problem being that AFS3 only
AFS_CALL_COMPLETE, /* Completed or failed */
};
+/*
+ * Address preferences.
+ */
+struct afs_addr_preference {
+ union {
+ struct in_addr ipv4_addr; /* AF_INET address to compare against */
+ struct in6_addr ipv6_addr; /* AF_INET6 address to compare against */
+ };
+ sa_family_t family; /* Which address to use */
+ u16 prio; /* Priority */
+ u8 subnet_mask; /* How many bits to compare */
+};
+
+struct afs_addr_preference_list {
+ struct rcu_head rcu;
+ u16 version; /* Incremented when prefs list changes */
+ u8 ipv6_off; /* Offset of IPv6 addresses */
+ u8 nr; /* Number of addresses in total */
+ u8 max_prefs; /* Number of prefs allocated */
+ struct afs_addr_preference prefs[] __counted_by(max_prefs);
+};
+
+struct afs_address {
+ struct rxrpc_peer *peer;
+ short last_error; /* Last error from this address */
+ u16 prio; /* Address priority */
+};
+
/*
* List of server addresses.
*/
struct rcu_head rcu;
refcount_t usage;
u32 version; /* Version */
+ unsigned int debug_id;
+ unsigned int addr_pref_version; /* Version of address preference list */
unsigned char max_addrs;
unsigned char nr_addrs;
unsigned char preferred; /* Preferred address */
unsigned char nr_ipv4; /* Number of IPv4 addresses */
enum dns_record_source source:8;
enum dns_lookup_status status:8;
- unsigned long failed; /* Mask of addrs that failed locally/ICMP */
+ unsigned long probe_failed; /* Mask of addrs that failed locally/ICMP */
unsigned long responded; /* Mask of addrs that responded */
- struct sockaddr_rxrpc addrs[] __counted_by(max_addrs);
+ struct afs_address addrs[] __counted_by(max_addrs);
#define AFS_MAX_ADDRESSES ((unsigned int)(sizeof(unsigned long) * 8))
};
*/
struct afs_call {
const struct afs_call_type *type; /* type of call */
- struct afs_addr_list *alist; /* Address is alist[addr_ix] */
wait_queue_head_t waitq; /* processes awaiting completion */
struct work_struct async_work; /* async I/O processor */
struct work_struct work; /* actual work processor */
struct rxrpc_call *rxcall; /* RxRPC call handle */
+ struct rxrpc_peer *peer; /* Remote endpoint */
struct key *key; /* security for this call */
struct afs_net *net; /* The network namespace */
struct afs_server *server; /* The fileserver record if fs op (pins ref) */
};
void *buffer; /* reply receive buffer */
union {
- long ret0; /* Value to reply with instead of 0 */
+ struct afs_endpoint_state *probe;
+ struct afs_addr_list *vl_probe;
struct afs_addr_list *ret_alist;
struct afs_vldb_entry *ret_vldb;
char *ret_str;
};
+ struct afs_fid fid; /* Primary vnode ID (or all zeroes) */
+ unsigned char probe_index; /* Address in ->probe_alist */
struct afs_operation *op;
unsigned int server_index;
refcount_t ref;
unsigned reply_max; /* maximum size of reply */
unsigned count2; /* count used in unmarshalling */
unsigned char unmarshall; /* unmarshalling phase */
- unsigned char addr_ix; /* Address in ->alist */
bool drop_ref; /* T if need to drop ref for incoming call */
bool need_attention; /* T if RxRPC poked us */
bool async; /* T if asynchronous */
bool upgrade; /* T to request service upgrade */
bool intr; /* T if interruptible */
bool unmarshalling_error; /* T if an unmarshalling error occurred */
+ bool responded; /* Got a response from the call (may be abort) */
u16 service_id; /* Actual service ID (after upgrade) */
unsigned int debug_id; /* Trace ID */
u32 operation_ID; /* operation ID for an incoming call */
struct proc_dir_entry *proc_afs; /* /proc/net/afs directory */
struct afs_sysnames *sysnames;
rwlock_t sysnames_lock;
+ struct afs_addr_preference_list __rcu *address_prefs;
+ u16 address_pref_version;
/* Statistics counters */
atomic_t n_lookup; /* Number of lookups done */
unsigned int debug_id;
/* The volumes belonging to this cell */
+ struct rw_semaphore vs_lock; /* Lock for server->volumes */
struct rb_root volumes; /* Tree of volumes on this server */
struct hlist_head proc_volumes; /* procfs volume list */
seqlock_t volume_lock; /* For volumes */
/* Active fileserver interaction state. */
struct rb_root fs_servers; /* afs_server (by server UUID) */
seqlock_t fs_lock; /* For fs_servers */
- struct rw_semaphore fs_open_mmaps_lock;
- struct list_head fs_open_mmaps; /* List of vnodes that are mmapped */
- atomic_t fs_s_break; /* Counter of CB.InitCallBackState messages */
/* VL server list. */
rwlock_t vl_servers_lock; /* Lock on vl_servers */
rwlock_t lock; /* Lock on addresses */
refcount_t ref;
unsigned int rtt; /* Server's current RTT in uS */
+ unsigned int debug_id;
/* Probe state */
wait_queue_head_t probe_wq;
atomic_t probe_outstanding;
spinlock_t probe_lock;
struct {
- unsigned int rtt; /* RTT in uS */
+ unsigned int rtt; /* Best RTT in uS (or UINT_MAX) */
u32 abort_code;
short error;
unsigned short flags;
#define AFS_VLSERVER_PROBE_LOCAL_FAILURE 0x08 /* A local failure prevented a probe */
} probe;
+ u16 service_id; /* Service ID we're using */
u16 port;
u16 name_len; /* Length of name */
char name[]; /* Server name, case-flattened */
#define AFS_VOL_VTM_RW 0x01 /* R/W version of the volume is available (on this server) */
#define AFS_VOL_VTM_RO 0x02 /* R/O version of the volume is available (on this server) */
#define AFS_VOL_VTM_BAK 0x04 /* backup version of the volume is available (on this server) */
+ u8 vlsf_flags[AFS_NMAXNSERVERS];
short error;
u8 nr_servers; /* Number of server records */
u8 name_len;
u8 name[AFS_MAXVOLNAME + 1]; /* NUL-padded volume name */
};
+/*
+ * Fileserver endpoint state. The records the addresses of a fileserver's
+ * endpoints and the state and result of a round of probing on them. This
+ * allows the rotation algorithm to access those results without them being
+ * erased by a subsequent round of probing.
+ */
+struct afs_endpoint_state {
+ struct rcu_head rcu;
+ struct afs_addr_list *addresses; /* The addresses being probed */
+ unsigned long responsive_set; /* Bitset of responsive endpoints */
+ unsigned long failed_set; /* Bitset of endpoints we failed to probe */
+ refcount_t ref;
+ unsigned int server_id; /* Debug ID of server */
+ unsigned int probe_seq; /* Probe sequence (from server::probe_counter) */
+ atomic_t nr_probing; /* Number of outstanding probes */
+ unsigned int rtt; /* Best RTT in uS (or UINT_MAX) */
+ s32 abort_code;
+ short error;
+ unsigned long flags;
+#define AFS_ESTATE_RESPONDED 0 /* Set if the server responded */
+#define AFS_ESTATE_SUPERSEDED 1 /* Set if this record has been superseded */
+#define AFS_ESTATE_IS_YFS 2 /* Set if probe upgraded to YFS */
+#define AFS_ESTATE_NOT_YFS 3 /* Set if probe didn't upgrade to YFS */
+#define AFS_ESTATE_LOCAL_FAILURE 4 /* Set if there was a local failure (eg. ENOMEM) */
+};
+
/*
* Record of fileserver with which we're actively communicating.
*/
struct afs_uuid _uuid;
};
- struct afs_addr_list __rcu *addresses;
struct afs_cell *cell; /* Cell to which belongs (pins ref) */
struct rb_node uuid_rb; /* Link in net->fs_servers */
struct afs_server __rcu *uuid_next; /* Next server with same UUID */
struct hlist_node addr4_link; /* Link in net->fs_addresses4 */
struct hlist_node addr6_link; /* Link in net->fs_addresses6 */
struct hlist_node proc_link; /* Link in net->fs_proc */
- struct work_struct initcb_work; /* Work for CB.InitCallBackState* */
+ struct list_head volumes; /* RCU list of afs_server_entry objects */
struct afs_server *gc_next; /* Next server in manager's list */
time64_t unuse_time; /* Time at which last unused */
unsigned long flags;
refcount_t ref; /* Object refcount */
atomic_t active; /* Active user count */
u32 addr_version; /* Address list version */
+ u16 service_id; /* Service ID we're using. */
unsigned int rtt; /* Server's current RTT in uS */
unsigned int debug_id; /* Debugging ID for traces */
/* file service access */
rwlock_t fs_lock; /* access lock */
- /* callback promise management */
- unsigned cb_s_break; /* Break-everything counter. */
-
/* Probe state */
+ struct afs_endpoint_state __rcu *endpoint_state; /* Latest endpoint/probe state */
unsigned long probed_at; /* Time last probe was dispatched (jiffies) */
wait_queue_head_t probe_wq;
- atomic_t probe_outstanding;
+ unsigned int probe_counter; /* Number of probes issued */
spinlock_t probe_lock;
- struct {
- unsigned int rtt; /* RTT in uS */
- u32 abort_code;
- short error;
- bool responded:1;
- bool is_yfs:1;
- bool not_yfs:1;
- bool local_failure:1;
- } probe;
};
+enum afs_ro_replicating {
+ AFS_RO_NOT_REPLICATING, /* Not doing replication */
+ AFS_RO_REPLICATING_USE_OLD, /* Replicating; use old version */
+ AFS_RO_REPLICATING_USE_NEW, /* Replicating; switch to new version */
+} __mode(byte);
+
/*
* Replaceable volume server list.
*/
struct afs_server_entry {
struct afs_server *server;
+ struct afs_volume *volume;
+ struct list_head slink; /* Link in server->volumes */
+ time64_t cb_expires_at; /* Time at which volume-level callback expires */
+ unsigned long flags;
+#define AFS_SE_EXCLUDED 0 /* Set if server is to be excluded in rotation */
+#define AFS_SE_VOLUME_OFFLINE 1 /* Set if volume offline notice given */
+#define AFS_SE_VOLUME_BUSY 2 /* Set if volume busy notice given */
};
struct afs_server_list {
- afs_volid_t vids[AFS_MAXTYPES]; /* Volume IDs */
+ struct rcu_head rcu;
refcount_t usage;
+ bool attached; /* T if attached to servers */
+ enum afs_ro_replicating ro_replicating; /* RW->RO update (probably) in progress */
unsigned char nr_servers;
- unsigned char preferred; /* Preferred server */
unsigned short vnovol_mask; /* Servers to be skipped due to VNOVOL */
unsigned int seq; /* Set to ->servers_seq when installed */
rwlock_t lock;
* Live AFS volume management.
*/
struct afs_volume {
- union {
- struct rcu_head rcu;
- afs_volid_t vid; /* volume ID */
- };
+ struct rcu_head rcu;
+ afs_volid_t vid; /* The volume ID of this volume */
+ afs_volid_t vids[AFS_MAXTYPES]; /* All associated volume IDs */
refcount_t ref;
time64_t update_at; /* Time at which to next update */
struct afs_cell *cell; /* Cell to which belongs (pins ref) */
struct rb_node cell_node; /* Link in cell->volumes */
struct hlist_node proc_link; /* Link in cell->proc_volumes */
struct super_block __rcu *sb; /* Superblock on which inodes reside */
+ struct work_struct destructor; /* Deferred destructor */
unsigned long flags;
#define AFS_VOLUME_NEEDS_UPDATE 0 /* - T if an update needs performing */
#define AFS_VOLUME_UPDATING 1 /* - T if an update is in progress */
#define AFS_VOLUME_WAIT 2 /* - T if users must wait for update */
#define AFS_VOLUME_DELETED 3 /* - T if volume appears deleted */
-#define AFS_VOLUME_OFFLINE 4 /* - T if volume offline notice given */
-#define AFS_VOLUME_BUSY 5 /* - T if volume busy notice given */
-#define AFS_VOLUME_MAYBE_NO_IBULK 6 /* - T if some servers don't have InlineBulkStatus */
+#define AFS_VOLUME_MAYBE_NO_IBULK 4 /* - T if some servers don't have InlineBulkStatus */
+#define AFS_VOLUME_RM_TREE 5 /* - Set if volume removed from cell->volumes */
#ifdef CONFIG_AFS_FSCACHE
struct fscache_volume *cache; /* Caching cookie */
#endif
rwlock_t servers_lock; /* Lock for ->servers */
unsigned int servers_seq; /* Incremented each time ->servers changes */
- unsigned cb_v_break; /* Break-everything counter. */
+ /* RO release tracking */
+ struct mutex volsync_lock; /* Time/state evaluation lock */
+ time64_t creation_time; /* Volume creation time (or TIME64_MIN) */
+ time64_t update_time; /* Volume update time (or TIME64_MIN) */
+
+ /* Callback management */
+ struct mutex cb_check_lock; /* Lock to control race to check after v_break */
+ time64_t cb_expires_at; /* Earliest volume callback expiry time */
+ atomic_t cb_ro_snapshot; /* RO volume update-from-snapshot counter */
+ atomic_t cb_v_break; /* Volume-break event counter. */
+ atomic_t cb_v_check; /* Volume-break has-been-checked counter. */
+ atomic_t cb_scrub; /* Scrub-all-data event counter. */
rwlock_t cb_v_break_lock;
+ struct rw_semaphore open_mmaps_lock;
+ struct list_head open_mmaps; /* List of vnodes that are mmapped */
afs_voltype_t type; /* type of volume */
char type_force; /* force volume type (suppress R/O -> R/W) */
spinlock_t wb_lock; /* lock for wb_keys */
spinlock_t lock; /* waitqueue/flags lock */
unsigned long flags;
-#define AFS_VNODE_CB_PROMISED 0 /* Set if vnode has a callback promise */
#define AFS_VNODE_UNSET 1 /* set if vnode attributes not yet set */
#define AFS_VNODE_DIR_VALID 2 /* Set if dir contents are valid */
#define AFS_VNODE_ZAP_DATA 3 /* set if vnode's data should be invalidated */
struct list_head cb_mmap_link; /* Link in cell->fs_open_mmaps */
void *cb_server; /* Server with callback/filelock */
atomic_t cb_nr_mmap; /* Number of mmaps */
- unsigned int cb_fs_s_break; /* Mass server break counter (cell->fs_s_break) */
- unsigned int cb_s_break; /* Mass break counter on ->server */
- unsigned int cb_v_break; /* Mass break counter on ->volume */
+ unsigned int cb_ro_snapshot; /* RO volume release counter on ->volume */
+ unsigned int cb_scrub; /* Scrub counter on ->volume */
unsigned int cb_break; /* Break counter on vnode */
+ unsigned int cb_v_check; /* Break check counter on ->volume */
seqlock_t cb_lock; /* Lock for ->cb_server, ->status, ->cb_*break */
- time64_t cb_expires_at; /* time at which callback expires */
+ atomic64_t cb_expires_at; /* time at which callback expires */
+#define AFS_NO_CB_PROMISE TIME64_MIN
};
static inline struct fscache_cookie *afs_vnode_cache(struct afs_vnode *vnode)
* Error prioritisation and accumulation.
*/
struct afs_error {
- short error; /* Accumulated error */
+ s32 abort_code; /* Cumulative abort code */
+ short error; /* Cumulative error */
bool responded; /* T if server responded */
-};
-
-/*
- * Cursor for iterating over a server's address list.
- */
-struct afs_addr_cursor {
- struct afs_addr_list *alist; /* Current address list (pins ref) */
- unsigned long tried; /* Tried addresses */
- signed char index; /* Current address */
- bool responded; /* T if the current address responded */
- unsigned short nr_iterations; /* Number of address iterations */
- short error;
- u32 abort_code;
+ bool aborted; /* T if ->error is from an abort */
};
/*
* Cursor for iterating over a set of volume location servers.
*/
struct afs_vl_cursor {
- struct afs_addr_cursor ac;
struct afs_cell *cell; /* The cell we're querying */
struct afs_vlserver_list *server_list; /* Current server list (pins ref) */
struct afs_vlserver *server; /* Server on which this resides */
+ struct afs_addr_list *alist; /* Current address list (pins ref) */
struct key *key; /* Key for the server */
- unsigned long untried; /* Bitmask of untried servers */
- short index; /* Current server */
- short error;
+ unsigned long untried_servers; /* Bitmask of untried servers */
+ unsigned long addr_tried; /* Tried addresses */
+ struct afs_error cumul_error; /* Cumulative error */
+ unsigned int debug_id;
+ s32 call_abort_code;
+ short call_error; /* Error from single call */
+ short server_index; /* Current server */
+ signed char addr_index; /* Current address */
unsigned short flags;
#define AFS_VL_CURSOR_STOP 0x0001 /* Set to cease iteration */
#define AFS_VL_CURSOR_RETRY 0x0002 /* Set to do a retry */
#define AFS_VL_CURSOR_RETRIED 0x0004 /* Set if started a retry */
- unsigned short nr_iterations; /* Number of server iterations */
+ short nr_iterations; /* Number of server iterations */
+ bool call_responded; /* T if the current address responded */
+};
+
+/*
+ * Fileserver state tracking for an operation. An array of these is kept,
+ * indexed by server index.
+ */
+struct afs_server_state {
+ /* Tracking of fileserver probe state. Other operations may interfere
+ * by probing a fileserver when accessing other volumes.
+ */
+ unsigned int probe_seq;
+ unsigned long untried_addrs; /* Addresses we haven't tried yet */
+ struct wait_queue_entry probe_waiter;
+ struct afs_endpoint_state *endpoint_state; /* Endpoint state being monitored */
};
/*
struct afs_fid fid; /* Fid to access */
struct afs_status_cb scb; /* Returned status and callback promise */
afs_dataversion_t dv_before; /* Data version before the call */
- unsigned int cb_break_before; /* cb_break + cb_s_break before the call */
+ unsigned int cb_break_before; /* cb_break before the call */
u8 dv_delta; /* Expected change in data version */
bool put_vnode:1; /* T if we have a ref on the vnode */
bool need_io_lock:1; /* T if we need the I/O lock on this */
struct afs_volume *volume; /* Volume being accessed */
struct afs_vnode_param file[2];
struct afs_vnode_param *more_files;
- struct afs_volsync volsync;
+ struct afs_volsync pre_volsync; /* Volsync before op */
+ struct afs_volsync volsync; /* Volsync returned by op */
struct dentry *dentry; /* Dentry to be altered */
struct dentry *dentry_2; /* Second dentry to be altered */
struct timespec64 mtime; /* Modification time to record */
struct timespec64 ctime; /* Change time to set */
+ struct afs_error cumul_error; /* Cumulative error */
short nr_files; /* Number of entries in file[], more_files */
- short error;
unsigned int debug_id;
unsigned int cb_v_break; /* Volume break counter before op */
- unsigned int cb_s_break; /* Server break counter before op */
union {
struct {
};
/* Fileserver iteration state */
- struct afs_addr_cursor ac;
struct afs_server_list *server_list; /* Current server list (pins ref) */
struct afs_server *server; /* Server we're using (ref pinned by server_list) */
+ struct afs_endpoint_state *estate; /* Current endpoint state (doesn't pin ref) */
+ struct afs_server_state *server_states; /* States of the servers involved */
struct afs_call *call;
- unsigned long untried; /* Bitmask of untried servers */
- short index; /* Current server */
- unsigned short nr_iterations; /* Number of server iterations */
+ unsigned long untried_servers; /* Bitmask of untried servers */
+ unsigned long addr_tried; /* Tried addresses */
+ s32 call_abort_code; /* Abort code from single call */
+ short call_error; /* Error from single call */
+ short server_index; /* Current server */
+ short nr_iterations; /* Number of server iterations */
+ signed char addr_index; /* Current address */
+ bool call_responded; /* T if the current address responded */
unsigned int flags;
#define AFS_OPERATION_STOP 0x0001 /* Set to cease iteration */
/*
* addr_list.c
*/
-static inline struct afs_addr_list *afs_get_addrlist(struct afs_addr_list *alist)
-{
- if (alist)
- refcount_inc(&alist->usage);
- return alist;
-}
-extern struct afs_addr_list *afs_alloc_addrlist(unsigned int,
- unsigned short,
- unsigned short);
-extern void afs_put_addrlist(struct afs_addr_list *);
+struct afs_addr_list *afs_get_addrlist(struct afs_addr_list *alist, enum afs_alist_trace reason);
+extern struct afs_addr_list *afs_alloc_addrlist(unsigned int nr);
+extern void afs_put_addrlist(struct afs_addr_list *alist, enum afs_alist_trace reason);
extern struct afs_vlserver_list *afs_parse_text_addrs(struct afs_net *,
const char *, size_t, char,
unsigned short, unsigned short);
+bool afs_addr_list_same(const struct afs_addr_list *a,
+ const struct afs_addr_list *b);
extern struct afs_vlserver_list *afs_dns_query(struct afs_cell *, time64_t *);
-extern bool afs_iterate_addresses(struct afs_addr_cursor *);
-extern int afs_end_cursor(struct afs_addr_cursor *);
-extern void afs_merge_fs_addr4(struct afs_addr_list *, __be32, u16);
-extern void afs_merge_fs_addr6(struct afs_addr_list *, __be32 *, u16);
+extern int afs_merge_fs_addr4(struct afs_net *net, struct afs_addr_list *addr,
+ __be32 xdr, u16 port);
+extern int afs_merge_fs_addr6(struct afs_net *net, struct afs_addr_list *addr,
+ __be32 *xdr, u16 port);
+
+/*
+ * addr_prefs.c
+ */
+int afs_proc_addr_prefs_write(struct file *file, char *buf, size_t size);
+void afs_get_address_preferences_rcu(struct afs_net *net, struct afs_addr_list *alist);
+void afs_get_address_preferences(struct afs_net *net, struct afs_addr_list *alist);
/*
* callback.c
*/
extern void afs_invalidate_mmap_work(struct work_struct *);
-extern void afs_server_init_callback_work(struct work_struct *work);
extern void afs_init_callback_state(struct afs_server *);
extern void __afs_break_callback(struct afs_vnode *, enum afs_cb_break_reason);
extern void afs_break_callback(struct afs_vnode *, enum afs_cb_break_reason);
static inline unsigned int afs_calc_vnode_cb_break(struct afs_vnode *vnode)
{
- return vnode->cb_break + vnode->cb_v_break;
+ return vnode->cb_break + vnode->cb_ro_snapshot + vnode->cb_scrub;
}
static inline bool afs_cb_is_broken(unsigned int cb_break,
const struct afs_vnode *vnode)
{
- return cb_break != (vnode->cb_break + vnode->volume->cb_v_break);
+ return cb_break != (vnode->cb_break +
+ atomic_read(&vnode->volume->cb_ro_snapshot) +
+ atomic_read(&vnode->volume->cb_scrub));
}
/*
extern void afs_fs_set_lock(struct afs_operation *);
extern void afs_fs_extend_lock(struct afs_operation *);
extern void afs_fs_release_lock(struct afs_operation *);
-extern int afs_fs_give_up_all_callbacks(struct afs_net *, struct afs_server *,
- struct afs_addr_cursor *, struct key *);
-extern bool afs_fs_get_capabilities(struct afs_net *, struct afs_server *,
- struct afs_addr_cursor *, struct key *);
+int afs_fs_give_up_all_callbacks(struct afs_net *net, struct afs_server *server,
+ struct afs_address *addr, struct key *key);
+bool afs_fs_get_capabilities(struct afs_net *net, struct afs_server *server,
+ struct afs_endpoint_state *estate, unsigned int addr_index,
+ struct key *key);
extern void afs_fs_inline_bulk_status(struct afs_operation *);
struct afs_acl {
u32 size;
- u8 data[];
+ u8 data[] __counted_by(size);
};
extern void afs_fs_fetch_acl(struct afs_operation *);
extern void afs_wait_for_operation(struct afs_operation *);
extern int afs_do_sync_operation(struct afs_operation *);
-static inline void afs_op_nomem(struct afs_operation *op)
-{
- op->error = -ENOMEM;
-}
-
static inline void afs_op_set_vnode(struct afs_operation *op, unsigned int n,
struct afs_vnode *vnode)
{
/*
* fs_probe.c
*/
+struct afs_endpoint_state *afs_get_endpoint_state(struct afs_endpoint_state *estate,
+ enum afs_estate_trace where);
+void afs_put_endpoint_state(struct afs_endpoint_state *estate, enum afs_estate_trace where);
extern void afs_fileserver_probe_result(struct afs_call *);
-extern void afs_fs_probe_fileserver(struct afs_net *, struct afs_server *, struct key *, bool);
-extern int afs_wait_for_fs_probes(struct afs_server_list *, unsigned long);
+void afs_fs_probe_fileserver(struct afs_net *net, struct afs_server *server,
+ struct afs_addr_list *new_addrs, struct key *key);
+int afs_wait_for_fs_probes(struct afs_operation *op, struct afs_server_state *states, bool intr);
extern void afs_probe_fileserver(struct afs_net *, struct afs_server *);
extern void afs_fs_probe_dispatcher(struct work_struct *);
-extern int afs_wait_for_one_fs_probe(struct afs_server *, bool);
+int afs_wait_for_one_fs_probe(struct afs_server *server, struct afs_endpoint_state *estate,
+ unsigned long exclude, bool is_intr);
extern void afs_fs_probe_cleanup(struct afs_net *);
/*
extern struct inode *afs_iget_pseudo_dir(struct super_block *, bool);
extern struct inode *afs_iget(struct afs_operation *, struct afs_vnode_param *);
extern struct inode *afs_root_iget(struct super_block *, struct key *);
-extern bool afs_check_validity(struct afs_vnode *);
-extern int afs_validate(struct afs_vnode *, struct key *);
-bool afs_pagecache_valid(struct afs_vnode *);
extern int afs_getattr(struct mnt_idmap *idmap, const struct path *,
struct kstat *, u32, unsigned int);
extern int afs_setattr(struct mnt_idmap *idmap, struct dentry *, struct iattr *);
extern int afs_abort_to_error(u32);
extern void afs_prioritise_error(struct afs_error *, int, u32);
+static inline void afs_op_nomem(struct afs_operation *op)
+{
+ op->cumul_error.error = -ENOMEM;
+}
+
+static inline int afs_op_error(const struct afs_operation *op)
+{
+ return op->cumul_error.error;
+}
+
+static inline s32 afs_op_abort_code(const struct afs_operation *op)
+{
+ return op->cumul_error.abort_code;
+}
+
+static inline int afs_op_set_error(struct afs_operation *op, int error)
+{
+ return op->cumul_error.error = error;
+}
+
+static inline void afs_op_accumulate_error(struct afs_operation *op, int error, s32 abort_code)
+{
+ afs_prioritise_error(&op->cumul_error, error, abort_code);
+}
+
/*
* mntpt.c
*/
/*
* rotate.c
*/
+void afs_clear_server_states(struct afs_operation *op);
extern bool afs_select_fileserver(struct afs_operation *);
extern void afs_dump_edestaddrreq(const struct afs_operation *);
extern void __net_exit afs_close_socket(struct afs_net *);
extern void afs_charge_preallocation(struct work_struct *);
extern void afs_put_call(struct afs_call *);
-extern void afs_make_call(struct afs_addr_cursor *, struct afs_call *, gfp_t);
-extern long afs_wait_for_call_to_complete(struct afs_call *, struct afs_addr_cursor *);
+void afs_make_call(struct afs_call *call, gfp_t gfp);
+void afs_wait_for_call_to_complete(struct afs_call *call);
extern struct afs_call *afs_alloc_flat_call(struct afs_net *,
const struct afs_call_type *,
size_t, size_t);
static inline void afs_make_op_call(struct afs_operation *op, struct afs_call *call,
gfp_t gfp)
{
- op->call = call;
- op->type = call->type;
- call->op = op;
- call->key = op->key;
- call->intr = !(op->flags & AFS_OPERATION_UNINTR);
- afs_make_call(&op->ac, call, gfp);
+ struct afs_addr_list *alist = op->estate->addresses;
+
+ op->call = call;
+ op->type = call->type;
+ call->op = op;
+ call->key = op->key;
+ call->intr = !(op->flags & AFS_OPERATION_UNINTR);
+ call->peer = rxrpc_kernel_get_peer(alist->addrs[op->addr_index].peer);
+ call->service_id = op->server->service_id;
+ afs_make_call(call, gfp);
}
static inline void afs_extract_begin(struct afs_call *call, void *buf, size_t size)
*/
extern spinlock_t afs_server_peer_lock;
-extern struct afs_server *afs_find_server(struct afs_net *,
- const struct sockaddr_rxrpc *);
+extern struct afs_server *afs_find_server(struct afs_net *, const struct rxrpc_peer *);
extern struct afs_server *afs_find_server_by_uuid(struct afs_net *, const uuid_t *);
extern struct afs_server *afs_lookup_server(struct afs_cell *, struct key *, const uuid_t *, u32);
extern struct afs_server *afs_get_server(struct afs_server *, enum afs_server_trace);
extern void afs_servers_timer(struct timer_list *);
extern void afs_fs_probe_timer(struct timer_list *);
extern void __net_exit afs_purge_servers(struct afs_net *);
-extern bool afs_check_server_record(struct afs_operation *, struct afs_server *);
+bool afs_check_server_record(struct afs_operation *op, struct afs_server *server, struct key *key);
static inline void afs_inc_servers_outstanding(struct afs_net *net)
{
}
extern void afs_put_serverlist(struct afs_net *, struct afs_server_list *);
-extern struct afs_server_list *afs_alloc_server_list(struct afs_cell *, struct key *,
- struct afs_vldb_entry *,
- u8);
+struct afs_server_list *afs_alloc_server_list(struct afs_volume *volume,
+ struct key *key,
+ struct afs_vldb_entry *vldb);
extern bool afs_annotate_server_list(struct afs_server_list *, struct afs_server_list *);
+void afs_attach_volume_to_servers(struct afs_volume *volume, struct afs_server_list *slist);
+void afs_reattach_volume_to_servers(struct afs_volume *volume, struct afs_server_list *slist,
+ struct afs_server_list *old);
+void afs_detach_volume_from_servers(struct afs_volume *volume, struct afs_server_list *slist);
/*
* super.c
extern int __init afs_fs_init(void);
extern void afs_fs_exit(void);
+/*
+ * validation.c
+ */
+bool afs_check_validity(const struct afs_vnode *vnode);
+int afs_update_volume_state(struct afs_operation *op);
+int afs_validate(struct afs_vnode *vnode, struct key *key);
+
/*
* vlclient.c
*/
extern struct afs_vldb_entry *afs_vl_get_entry_by_name_u(struct afs_vl_cursor *,
const char *, int);
extern struct afs_addr_list *afs_vl_get_addrs_u(struct afs_vl_cursor *, const uuid_t *);
-extern struct afs_call *afs_vl_get_capabilities(struct afs_net *, struct afs_addr_cursor *,
- struct key *, struct afs_vlserver *, unsigned int);
+struct afs_call *afs_vl_get_capabilities(struct afs_net *net,
+ struct afs_addr_list *alist,
+ unsigned int addr_index,
+ struct key *key,
+ struct afs_vlserver *server,
+ unsigned int server_index);
extern struct afs_addr_list *afs_yfsvl_get_endpoints(struct afs_vl_cursor *, const uuid_t *);
extern char *afs_yfsvl_get_cell_name(struct afs_vl_cursor *);
extern struct afs_volume *afs_create_volume(struct afs_fs_context *);
extern int afs_activate_volume(struct afs_volume *);
extern void afs_deactivate_volume(struct afs_volume *);
+bool afs_try_get_volume(struct afs_volume *volume, enum afs_volume_trace reason);
extern struct afs_volume *afs_get_volume(struct afs_volume *, enum afs_volume_trace);
-extern void afs_put_volume(struct afs_net *, struct afs_volume *, enum afs_volume_trace);
+void afs_put_volume(struct afs_volume *volume, enum afs_volume_trace reason);
extern int afs_check_volume_status(struct afs_volume *, struct afs_operation *);
/*
struct afs_vnode_param *dir_vp,
struct dentry *dentry)
{
- if (!op->error)
+ if (!op->cumul_error.error)
dentry->d_fsdata =
(void *)(unsigned long)dir_vp->scb.status.data_version;
}
projects / linux.git / commitdiff