diff options
Diffstat (limited to 'fs/afs/internal.h')
| -rw-r--r-- | fs/afs/internal.h | 64 |
1 files changed, 58 insertions, 6 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 3904ab0b9563..b3cd6e8ad59d 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -36,11 +36,24 @@ struct pagevec; struct afs_call; +/* + * Partial file-locking emulation mode. (The problem being that AFS3 only + * allows whole-file locks and no upgrading/downgrading). + */ +enum afs_flock_mode { + afs_flock_mode_unset, + afs_flock_mode_local, /* Local locking only */ + afs_flock_mode_openafs, /* Don't get server lock for a partial lock */ + afs_flock_mode_strict, /* Always get a server lock for a partial lock */ + afs_flock_mode_write, /* Get an exclusive server lock for a partial lock */ +}; + struct afs_fs_context { bool force; /* T to force cell type */ bool autocell; /* T if set auto mount operation */ bool dyn_root; /* T if dynamic root */ bool no_cell; /* T if the source is "none" (for dynroot) */ + enum afs_flock_mode flock_mode; /* Partial file-locking emulation mode */ afs_voltype_t type; /* type of volume requested */ unsigned int volnamesz; /* size of volume name */ const char *volname; /* name of volume to mount */ @@ -221,6 +234,7 @@ struct afs_super_info { struct net *net_ns; /* Network namespace */ struct afs_cell *cell; /* The cell in which the volume resides */ struct afs_volume *volume; /* volume record */ + enum afs_flock_mode flock_mode:8; /* File locking emulation mode */ bool dyn_root; /* True if dynamic root */ }; @@ -599,6 +613,7 @@ enum afs_lock_state { AFS_VNODE_LOCK_EXTENDING, /* We're extending a lock on the server */ AFS_VNODE_LOCK_NEED_UNLOCK, /* We need to unlock on the server */ AFS_VNODE_LOCK_UNLOCKING, /* We're telling the server to unlock */ + AFS_VNODE_LOCK_DELETED, /* The vnode has been deleted whilst we have a lock */ }; /* @@ -620,6 +635,8 @@ struct afs_vnode { struct afs_permits __rcu *permit_cache; /* cache of permits so far obtained */ struct mutex io_lock; /* Lock for serialising I/O on this mutex */ struct rw_semaphore validate_lock; /* lock for validating this vnode */ + struct rw_semaphore rmdir_lock; /* Lock for rmdir vs sillyrename */ + struct key *silly_key; /* Silly rename key */ spinlock_t wb_lock; /* lock for wb_keys */ spinlock_t lock; /* waitqueue/flags lock */ unsigned long flags; @@ -638,6 +655,7 @@ struct afs_vnode { struct list_head granted_locks; /* locks granted on this file */ struct delayed_work lock_work; /* work to be done in locking */ struct key *lock_key; /* Key to be used in lock ops */ + ktime_t locked_at; /* Time at which lock obtained */ enum afs_lock_state lock_state : 8; afs_lock_type_t lock_type : 8; @@ -864,6 +882,7 @@ extern const struct address_space_operations afs_dir_aops; extern const struct dentry_operations afs_fs_dentry_operations; extern void afs_d_release(struct dentry *); +extern int afs_dir_remove_link(struct dentry *, struct key *, unsigned long, unsigned long); /* * dir_edit.c @@ -873,6 +892,13 @@ extern void afs_edit_dir_add(struct afs_vnode *, struct qstr *, struct afs_fid * extern void afs_edit_dir_remove(struct afs_vnode *, struct qstr *, enum afs_edit_dir_reason); /* + * dir_silly.c + */ +extern int afs_sillyrename(struct afs_vnode *, struct afs_vnode *, + struct dentry *, struct key *); +extern int afs_silly_iput(struct dentry *, struct inode *); + +/* * dynroot.c */ extern const struct file_operations afs_dynroot_file_operations; @@ -905,6 +931,7 @@ extern void afs_put_read(struct afs_read *); */ extern struct workqueue_struct *afs_lock_manager; +extern void afs_lock_op_done(struct afs_call *); extern void afs_lock_work(struct work_struct *); extern void afs_lock_may_be_available(struct afs_vnode *); extern int afs_lock(struct file *, int, struct file_lock *); @@ -939,8 +966,9 @@ extern int afs_fs_extend_lock(struct afs_fs_cursor *); extern int afs_fs_release_lock(struct afs_fs_cursor *); extern int afs_fs_give_up_all_callbacks(struct afs_net *, struct afs_server *, struct afs_addr_cursor *, struct key *); -extern int afs_fs_get_capabilities(struct afs_net *, struct afs_server *, - struct afs_addr_cursor *, struct key *, unsigned int, bool); +extern struct afs_call *afs_fs_get_capabilities(struct afs_net *, struct afs_server *, + struct afs_addr_cursor *, struct key *, + unsigned int); extern int afs_fs_inline_bulk_status(struct afs_fs_cursor *, struct afs_net *, struct afs_fid *, struct afs_file_status *, struct afs_callback *, unsigned int, @@ -949,6 +977,14 @@ extern int afs_fs_fetch_status(struct afs_fs_cursor *, struct afs_net *, struct afs_fid *, struct afs_file_status *, struct afs_callback *, struct afs_volsync *); +struct afs_acl { + u32 size; + u8 data[]; +}; + +extern struct afs_acl *afs_fs_fetch_acl(struct afs_fs_cursor *); +extern int afs_fs_store_acl(struct afs_fs_cursor *, const struct afs_acl *); + /* * fs_probe.c */ @@ -965,7 +1001,8 @@ extern struct inode *afs_iget_pseudo_dir(struct super_block *, bool); extern struct inode *afs_iget(struct super_block *, struct key *, struct afs_fid *, struct afs_file_status *, struct afs_callback *, - struct afs_cb_interest *); + struct afs_cb_interest *, + struct afs_vnode *); extern void afs_zap_data(struct afs_vnode *); extern int afs_validate(struct afs_vnode *, struct key *); extern int afs_getattr(const struct path *, struct kstat *, u32, unsigned int); @@ -1073,7 +1110,8 @@ extern int __net_init afs_open_socket(struct afs_net *); 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 long afs_make_call(struct afs_addr_cursor *, struct afs_call *, gfp_t, bool); +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 *); extern struct afs_call *afs_alloc_flat_call(struct afs_net *, const struct afs_call_type *, size_t, size_t); @@ -1218,8 +1256,8 @@ extern void afs_fs_exit(void); 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 int afs_vl_get_capabilities(struct afs_net *, struct afs_addr_cursor *, struct key *, - struct afs_vlserver *, unsigned int, bool); +extern struct afs_call *afs_vl_get_capabilities(struct afs_net *, struct afs_addr_cursor *, + struct key *, struct afs_vlserver *, unsigned int); extern struct afs_addr_list *afs_yfsvl_get_endpoints(struct afs_vl_cursor *, const uuid_t *); /* @@ -1333,6 +1371,20 @@ extern int yfs_fs_inline_bulk_status(struct afs_fs_cursor *, struct afs_net *, struct afs_callback *, unsigned int, struct afs_volsync *); +struct yfs_acl { + struct afs_acl *acl; /* Dir/file/symlink ACL */ + struct afs_acl *vol_acl; /* Whole volume ACL */ + u32 inherit_flag; /* True if ACL is inherited from parent dir */ + u32 num_cleaned; /* Number of ACEs removed due to subject removal */ + unsigned int flags; +#define YFS_ACL_WANT_ACL 0x01 /* Set if caller wants ->acl */ +#define YFS_ACL_WANT_VOL_ACL 0x02 /* Set if caller wants ->vol_acl */ +}; + +extern void yfs_free_opaque_acl(struct yfs_acl *); +extern struct yfs_acl *yfs_fs_fetch_opaque_acl(struct afs_fs_cursor *, unsigned int); +extern int yfs_fs_store_opaque_acl2(struct afs_fs_cursor *, const struct afs_acl *); + /* * Miscellaneous inline functions. */ |