/* internal.h: internal AFS stuff * * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef AFS_INTERNAL_H #define AFS_INTERNAL_H #include <linux/compiler.h> #include <linux/kernel.h> #include <linux/fs.h> #include <linux/pagemap.h> /* * debug tracing */ #define kenter(FMT, a...) printk("==> %s("FMT")\n",__FUNCTION__ , ## a) #define kleave(FMT, a...) printk("<== %s()"FMT"\n",__FUNCTION__ , ## a) #define kdebug(FMT, a...) printk(FMT"\n" , ## a) #define kproto(FMT, a...) printk("### "FMT"\n" , ## a) #define knet(FMT, a...) printk(FMT"\n" , ## a) #ifdef __KDEBUG #define _enter(FMT, a...) kenter(FMT , ## a) #define _leave(FMT, a...) kleave(FMT , ## a) #define _debug(FMT, a...) kdebug(FMT , ## a) #define _proto(FMT, a...) kproto(FMT , ## a) #define _net(FMT, a...) knet(FMT , ## a) #else #define _enter(FMT, a...) do { } while(0) #define _leave(FMT, a...) do { } while(0) #define _debug(FMT, a...) do { } while(0) #define _proto(FMT, a...) do { } while(0) #define _net(FMT, a...) do { } while(0) #endif static inline void afs_discard_my_signals(void) { while (signal_pending(current)) { siginfo_t sinfo; spin_lock_irq(¤t->sighand->siglock); dequeue_signal(current,¤t->blocked, &sinfo); spin_unlock_irq(¤t->sighand->siglock); } } /* * cell.c */ extern struct rw_semaphore afs_proc_cells_sem; extern struct list_head afs_proc_cells; #ifdef AFS_CACHING_SUPPORT extern struct cachefs_index_def afs_cache_cell_index_def; #endif /* * dir.c */ extern const struct inode_operations afs_dir_inode_operations; extern const struct file_operations afs_dir_file_operations; /* * file.c */ extern const struct address_space_operations afs_fs_aops; extern const struct inode_operations afs_file_inode_operations; #ifdef AFS_CACHING_SUPPORT extern int afs_cache_get_page_cookie(struct page *page, struct cachefs_page **_page_cookie); #endif /* * inode.c */ extern int afs_iget(struct super_block *sb, struct afs_fid *fid, struct inode **_inode); extern int afs_inode_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); extern void afs_clear_inode(struct inode *inode); /* * key_afs.c */ #ifdef CONFIG_KEYS extern int afs_key_register(void); extern void afs_key_unregister(void); #endif /* * main.c */ #ifdef AFS_CACHING_SUPPORT extern struct cachefs_netfs afs_cache_netfs; #endif /* * mntpt.c */ extern const struct inode_operations afs_mntpt_inode_operations; extern const struct file_operations afs_mntpt_file_operations; extern struct afs_timer afs_mntpt_expiry_timer; extern struct afs_timer_ops afs_mntpt_expiry_timer_ops; extern unsigned long afs_mntpt_expiry_timeout; extern int afs_mntpt_check_symlink(struct afs_vnode *vnode); /* * super.c */ extern int afs_fs_init(void); extern void afs_fs_exit(void); #define AFS_CB_HASH_COUNT (PAGE_SIZE / sizeof(struct list_head)) extern struct list_head afs_cb_hash_tbl[]; extern spinlock_t afs_cb_hash_lock; #define afs_cb_hash(SRV,FID) \ afs_cb_hash_tbl[((unsigned long)(SRV) + \ (FID)->vid + (FID)->vnode + (FID)->unique) % \ AFS_CB_HASH_COUNT] /* * proc.c */ extern int afs_proc_init(void); extern void afs_proc_cleanup(void); extern int afs_proc_cell_setup(struct afs_cell *cell); extern void afs_proc_cell_remove(struct afs_cell *cell); #endif /* AFS_INTERNAL_H */