diff options
Diffstat (limited to 'fs/afs/internal.h')
| -rw-r--r-- | fs/afs/internal.h | 172 |
1 files changed, 73 insertions, 99 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 535a38d2c1d0..a6901360fb81 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -11,6 +11,7 @@ #include <linux/compiler.h> #include <linux/kernel.h> +#include <linux/ktime.h> #include <linux/fs.h> #include <linux/pagemap.h> #include <linux/rxrpc.h> @@ -19,6 +20,7 @@ #include <linux/sched.h> #include <linux/fscache.h> #include <linux/backing-dev.h> +#include <linux/uuid.h> #include <net/af_rxrpc.h> #include "afs.h" @@ -51,31 +53,22 @@ struct afs_mount_params { struct key *key; /* key to use for secure mounting */ }; -/* - * definition of how to wait for the completion of an operation - */ -struct afs_wait_mode { - /* RxRPC received message notification */ - rxrpc_notify_rx_t notify_rx; - - /* synchronous call waiter and call dispatched notification */ - int (*wait)(struct afs_call *call); - - /* asynchronous call completion */ - void (*async_complete)(void *reply, int error); +enum afs_call_state { + AFS_CALL_REQUESTING, /* request is being sent for outgoing call */ + AFS_CALL_AWAIT_REPLY, /* awaiting reply to outgoing call */ + AFS_CALL_AWAIT_OP_ID, /* awaiting op ID on incoming call */ + AFS_CALL_AWAIT_REQUEST, /* awaiting request data on incoming call */ + AFS_CALL_REPLYING, /* replying to incoming call */ + AFS_CALL_AWAIT_ACK, /* awaiting final ACK of incoming call */ + AFS_CALL_COMPLETE, /* Completed or failed */ }; - -extern const struct afs_wait_mode afs_sync_call; -extern const struct afs_wait_mode afs_async_call; - /* * a record of an in-progress RxRPC call */ struct afs_call { const struct afs_call_type *type; /* type of call */ - const struct afs_wait_mode *wait_mode; /* completion wait mode */ wait_queue_head_t waitq; /* processes awaiting completion */ - struct work_struct async_work; /* asynchronous work processor */ + struct work_struct async_work; /* async I/O processor */ struct work_struct work; /* actual work processor */ struct rxrpc_call *rxcall; /* RxRPC call handle */ struct key *key; /* security for this call */ @@ -91,25 +84,22 @@ struct afs_call { pgoff_t first; /* first page in mapping to deal with */ pgoff_t last; /* last page in mapping to deal with */ size_t offset; /* offset into received data store */ - enum { /* call state */ - AFS_CALL_REQUESTING, /* request is being sent for outgoing call */ - AFS_CALL_AWAIT_REPLY, /* awaiting reply to outgoing call */ - AFS_CALL_AWAIT_OP_ID, /* awaiting op ID on incoming call */ - AFS_CALL_AWAIT_REQUEST, /* awaiting request data on incoming call */ - AFS_CALL_REPLYING, /* replying to incoming call */ - AFS_CALL_AWAIT_ACK, /* awaiting final ACK of incoming call */ - AFS_CALL_COMPLETE, /* Completed or failed */ - } state; + atomic_t usage; + enum afs_call_state state; int error; /* error code */ u32 abort_code; /* Remote abort ID or 0 */ unsigned request_size; /* size of request data */ unsigned reply_max; /* maximum size of reply */ unsigned first_offset; /* offset into mapping[first] */ - unsigned last_to; /* amount of mapping[last] */ + union { + unsigned last_to; /* amount of mapping[last] */ + unsigned count2; /* count used in unmarshalling */ + }; unsigned char unmarshall; /* unmarshalling phase */ bool incoming; /* T if incoming call */ bool send_pages; /* T if data from mapping should be sent */ bool need_attention; /* T if RxRPC poked us */ + bool async; /* T if asynchronous */ u16 service_id; /* RxRPC service ID to call */ __be16 port; /* target UDP port */ u32 operation_ID; /* operation ID for an incoming call */ @@ -131,6 +121,24 @@ struct afs_call_type { /* clean up a call */ void (*destructor)(struct afs_call *call); + + /* Work function */ + void (*work)(struct work_struct *work); +}; + +/* + * Record of an outstanding read operation on a vnode. + */ +struct afs_read { + loff_t pos; /* Where to start reading */ + loff_t len; /* How much we're asking for */ + loff_t actual_len; /* How much we're actually getting */ + loff_t remain; /* Amount remaining */ + atomic_t usage; + unsigned int index; /* Which page we're reading into */ + unsigned int nr_pages; + void (*page_done)(struct afs_call *, struct afs_read *); + struct page *pages[]; }; /* @@ -242,7 +250,7 @@ struct afs_cache_vhash { */ struct afs_vlocation { atomic_t usage; - time_t time_of_death; /* time at which put reduced usage to 0 */ + time64_t time_of_death; /* time at which put reduced usage to 0 */ struct list_head link; /* link in cell volume location list */ struct list_head grave; /* link in master graveyard list */ struct list_head update; /* link in master update list */ @@ -253,7 +261,7 @@ struct afs_vlocation { struct afs_cache_vlocation vldb; /* volume information DB record */ struct afs_volume *vols[3]; /* volume access record pointer (index by type) */ wait_queue_head_t waitq; /* status change waitqueue */ - time_t update_at; /* time at which record should be updated */ + time64_t update_at; /* time at which record should be updated */ spinlock_t lock; /* access lock */ afs_vlocation_state_t state; /* volume location state */ unsigned short upd_rej_cnt; /* ENOMEDIUM count during update */ @@ -266,7 +274,7 @@ struct afs_vlocation { */ struct afs_server { atomic_t usage; - time_t time_of_death; /* time at which put reduced usage to 0 */ + time64_t time_of_death; /* time at which put reduced usage to 0 */ struct in_addr addr; /* server address */ struct afs_cell *cell; /* cell in which server resides */ struct list_head link; /* link in cell's server list */ @@ -369,8 +377,8 @@ struct afs_vnode { struct rb_node server_rb; /* link in server->fs_vnodes */ struct rb_node cb_promise; /* link in server->cb_promises */ struct work_struct cb_broken_work; /* work to be done on callback break */ - time_t cb_expires; /* time at which callback expires */ - time_t cb_expires_at; /* time used to order cb_promise */ + time64_t cb_expires; /* time at which callback expires */ + time64_t cb_expires_at; /* time used to order cb_promise */ unsigned cb_version; /* callback version */ unsigned cb_expiry; /* callback expiry time */ afs_callback_type_t cb_type; /* type of callback */ @@ -403,30 +411,6 @@ struct afs_interface { unsigned mtu; /* MTU of interface */ }; -/* - * UUID definition [internet draft] - * - the timestamp is a 60-bit value, split 32/16/12, and goes in 100ns - * increments since midnight 15th October 1582 - * - add AFS_UUID_TO_UNIX_TIME to convert unix time in 100ns units to UUID - * time - * - the clock sequence is a 14-bit counter to avoid duplicate times - */ -struct afs_uuid { - u32 time_low; /* low part of timestamp */ - u16 time_mid; /* mid part of timestamp */ - u16 time_hi_and_version; /* high part of timestamp and version */ -#define AFS_UUID_TO_UNIX_TIME 0x01b21dd213814000ULL -#define AFS_UUID_TIMEHI_MASK 0x0fff -#define AFS_UUID_VERSION_TIME 0x1000 /* time-based UUID */ -#define AFS_UUID_VERSION_NAME 0x3000 /* name-based UUID */ -#define AFS_UUID_VERSION_RANDOM 0x4000 /* (pseudo-)random generated UUID */ - u8 clock_seq_hi_and_reserved; /* clock seq hi and variant */ -#define AFS_UUID_CLOCKHI_MASK 0x3f -#define AFS_UUID_VARIANT_STD 0x80 - u8 clock_seq_low; /* clock seq low */ - u8 node[6]; /* spatially unique node ID (MAC addr) */ -}; - /*****************************************************************************/ /* * cache.c @@ -494,6 +478,7 @@ extern const struct file_operations afs_file_operations; extern int afs_open(struct inode *, struct file *); extern int afs_release(struct inode *, struct file *); extern int afs_page_filler(void *, struct page *); +extern void afs_put_read(struct afs_read *); /* * flock.c @@ -509,50 +494,37 @@ extern int afs_flock(struct file *, int, struct file_lock *); */ extern int afs_fs_fetch_file_status(struct afs_server *, struct key *, struct afs_vnode *, struct afs_volsync *, - const struct afs_wait_mode *); -extern int afs_fs_give_up_callbacks(struct afs_server *, - const struct afs_wait_mode *); + bool); +extern int afs_fs_give_up_callbacks(struct afs_server *, bool); extern int afs_fs_fetch_data(struct afs_server *, struct key *, - struct afs_vnode *, off_t, size_t, struct page *, - const struct afs_wait_mode *); + struct afs_vnode *, struct afs_read *, bool); extern int afs_fs_create(struct afs_server *, struct key *, struct afs_vnode *, const char *, umode_t, struct afs_fid *, struct afs_file_status *, - struct afs_callback *, - const struct afs_wait_mode *); + struct afs_callback *, bool); extern int afs_fs_remove(struct afs_server *, struct key *, - struct afs_vnode *, const char *, bool, - const struct afs_wait_mode *); + struct afs_vnode *, const char *, bool, bool); extern int afs_fs_link(struct afs_server *, struct key *, struct afs_vnode *, - struct afs_vnode *, const char *, - const struct afs_wait_mode *); + struct afs_vnode *, const char *, bool); extern int afs_fs_symlink(struct afs_server *, struct key *, struct afs_vnode *, const char *, const char *, - struct afs_fid *, struct afs_file_status *, - const struct afs_wait_mode *); + struct afs_fid *, struct afs_file_status *, bool); extern int afs_fs_rename(struct afs_server *, struct key *, struct afs_vnode *, const char *, - struct afs_vnode *, const char *, - const struct afs_wait_mode *); + struct afs_vnode *, const char *, bool); extern int afs_fs_store_data(struct afs_server *, struct afs_writeback *, - pgoff_t, pgoff_t, unsigned, unsigned, - const struct afs_wait_mode *); + pgoff_t, pgoff_t, unsigned, unsigned, bool); extern int afs_fs_setattr(struct afs_server *, struct key *, - struct afs_vnode *, struct iattr *, - const struct afs_wait_mode *); + struct afs_vnode *, struct iattr *, bool); extern int afs_fs_get_volume_status(struct afs_server *, struct key *, struct afs_vnode *, - struct afs_volume_status *, - const struct afs_wait_mode *); + struct afs_volume_status *, bool); extern int afs_fs_set_lock(struct afs_server *, struct key *, - struct afs_vnode *, afs_lock_type_t, - const struct afs_wait_mode *); + struct afs_vnode *, afs_lock_type_t, bool); extern int afs_fs_extend_lock(struct afs_server *, struct key *, - struct afs_vnode *, - const struct afs_wait_mode *); + struct afs_vnode *, bool); extern int afs_fs_release_lock(struct afs_server *, struct key *, - struct afs_vnode *, - const struct afs_wait_mode *); + struct afs_vnode *, bool); /* * inode.c @@ -564,7 +536,7 @@ extern struct inode *afs_iget(struct super_block *, struct key *, struct afs_callback *); extern void afs_zap_data(struct afs_vnode *); extern int afs_validate(struct afs_vnode *, struct key *); -extern int afs_getattr(struct vfsmount *, struct dentry *, struct kstat *); +extern int afs_getattr(const struct path *, struct kstat *, u32, unsigned int); extern int afs_setattr(struct dentry *, struct iattr *); extern void afs_evict_inode(struct inode *); extern int afs_drop_inode(struct inode *); @@ -573,7 +545,7 @@ extern int afs_drop_inode(struct inode *); * main.c */ extern struct workqueue_struct *afs_wq; -extern struct afs_uuid afs_uuid; +extern struct uuid_v1 afs_uuid; /* * misc.c @@ -588,10 +560,14 @@ extern const struct inode_operations afs_autocell_inode_operations; extern const struct file_operations afs_mntpt_file_operations; extern struct vfsmount *afs_d_automount(struct path *); -extern int afs_mntpt_check_symlink(struct afs_vnode *, struct key *); extern void afs_mntpt_kill_timer(void); /* + * netdevices.c + */ +extern int afs_get_ipv4_interfaces(struct afs_interface *, size_t, bool); + +/* * proc.c */ extern int afs_proc_init(void); @@ -603,11 +579,13 @@ extern void afs_proc_cell_remove(struct afs_cell *); * rxrpc.c */ extern struct socket *afs_socket; +extern atomic_t afs_outstanding_calls; extern int afs_open_socket(void); extern void afs_close_socket(void); -extern int afs_make_call(struct in_addr *, struct afs_call *, gfp_t, - const struct afs_wait_mode *); +extern void afs_put_call(struct afs_call *); +extern int afs_queue_call_work(struct afs_call *); +extern int afs_make_call(struct in_addr *, struct afs_call *, gfp_t, bool); extern struct afs_call *afs_alloc_flat_call(const struct afs_call_type *, size_t, size_t); extern void afs_flat_call_destructor(struct afs_call *); @@ -653,21 +631,14 @@ extern int afs_fs_init(void); extern void afs_fs_exit(void); /* - * use-rtnetlink.c - */ -extern int afs_get_ipv4_interfaces(struct afs_interface *, size_t, bool); -extern int afs_get_MAC_address(u8 *, size_t); - -/* * vlclient.c */ extern int afs_vl_get_entry_by_name(struct in_addr *, struct key *, const char *, struct afs_cache_vlocation *, - const struct afs_wait_mode *); + bool); extern int afs_vl_get_entry_by_id(struct in_addr *, struct key *, afs_volid_t, afs_voltype_t, - struct afs_cache_vlocation *, - const struct afs_wait_mode *); + struct afs_cache_vlocation *, bool); /* * vlocation.c @@ -699,7 +670,7 @@ extern void afs_vnode_finalise_status_update(struct afs_vnode *, extern int afs_vnode_fetch_status(struct afs_vnode *, struct afs_vnode *, struct key *); extern int afs_vnode_fetch_data(struct afs_vnode *, struct key *, - off_t, size_t, struct page *); + struct afs_read *); extern int afs_vnode_create(struct afs_vnode *, struct key *, const char *, umode_t, struct afs_fid *, struct afs_file_status *, struct afs_callback *, struct afs_server **); @@ -749,6 +720,7 @@ extern int afs_writepages(struct address_space *, struct writeback_control *); extern void afs_pages_written_back(struct afs_vnode *, struct afs_call *); extern ssize_t afs_file_write(struct kiocb *, struct iov_iter *); extern int afs_writeback_all(struct afs_vnode *); +extern int afs_flush(struct file *, fl_owner_t); extern int afs_fsync(struct file *, loff_t, loff_t, int); @@ -756,6 +728,8 @@ extern int afs_fsync(struct file *, loff_t, loff_t, int); /* * debug tracing */ +#include <trace/events/afs.h> + extern unsigned afs_debug; #define dbgprintk(FMT,...) \ |