[net-next-2.6.git] / fs / afs / 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(&current->sighand->siglock);
		dequeue_signal(current,&current->blocked, &sinfo);
		spin_unlock_irq(&current->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 *, struct cachefs_page **);
#endif

/*
 * inode.c
 */
extern int afs_iget(struct super_block *, struct afs_fid *, struct inode **);
extern int afs_inode_getattr(struct vfsmount *, struct dentry *,
			     struct kstat *);
extern void afs_clear_inode(struct inode *);

/*
 * 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 *);

/*
 * 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 - 1)]

/*
 * proc.c
 */
extern int afs_proc_init(void);
extern void afs_proc_cleanup(void);
extern int afs_proc_cell_setup(struct afs_cell *);
extern void afs_proc_cell_remove(struct afs_cell *);

#endif /* AFS_INTERNAL_H */
Commit	Line	Data
ec26815a	1	/* internal AFS stuff
1da177e4 LT	2	*
	3	* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
	4	* Written by David Howells (dhowells@redhat.com)
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* as published by the Free Software Foundation; either version
	9	* 2 of the License, or (at your option) any later version.
	10	*/
	11
	12	#ifndef AFS_INTERNAL_H
	13	#define AFS_INTERNAL_H
	14
	15	#include <linux/compiler.h>
	16	#include <linux/kernel.h>
	17	#include <linux/fs.h>
	18	#include <linux/pagemap.h>
	19
	20	/*
	21	* debug tracing
	22	*/
	23	#define kenter(FMT, a...) printk("==> %s("FMT")\n",__FUNCTION__ , ## a)
	24	#define kleave(FMT, a...) printk("<== %s()"FMT"\n",__FUNCTION__ , ## a)
	25	#define kdebug(FMT, a...) printk(FMT"\n" , ## a)
	26	#define kproto(FMT, a...) printk("### "FMT"\n" , ## a)
	27	#define knet(FMT, a...) printk(FMT"\n" , ## a)
	28
	29	#ifdef __KDEBUG
	30	#define _enter(FMT, a...) kenter(FMT , ## a)
	31	#define _leave(FMT, a...) kleave(FMT , ## a)
	32	#define _debug(FMT, a...) kdebug(FMT , ## a)
	33	#define _proto(FMT, a...) kproto(FMT , ## a)
	34	#define _net(FMT, a...) knet(FMT , ## a)
	35	#else
	36	#define _enter(FMT, a...) do { } while(0)
	37	#define _leave(FMT, a...) do { } while(0)
	38	#define _debug(FMT, a...) do { } while(0)
	39	#define _proto(FMT, a...) do { } while(0)
	40	#define _net(FMT, a...) do { } while(0)
	41	#endif
	42
	43	static inline void afs_discard_my_signals(void)
	44	{
	45	while (signal_pending(current)) {
	46	siginfo_t sinfo;
	47
	48	spin_lock_irq(&current->sighand->siglock);
	49	dequeue_signal(current,&current->blocked, &sinfo);
	50	spin_unlock_irq(&current->sighand->siglock);
	51	}
	52	}
	53
	54	/*
	55	* cell.c
	56	*/
	57	extern struct rw_semaphore afs_proc_cells_sem;
	58	extern struct list_head afs_proc_cells;
	59	#ifdef AFS_CACHING_SUPPORT
	60	extern struct cachefs_index_def afs_cache_cell_index_def;
	61	#endif
	62
	63	/*
	64	* dir.c
	65	*/
754661f1	66	extern const struct inode_operations afs_dir_inode_operations;
4b6f5d20	67	extern const struct file_operations afs_dir_file_operations;
1da177e4 LT	68
	69	/*
	70	* file.c
	71	*/
f5e54d6e	72	extern const struct address_space_operations afs_fs_aops;
754661f1	73	extern const struct inode_operations afs_file_inode_operations;
1da177e4 LT	74
1da177e4 LT	75	#ifdef AFS_CACHING_SUPPORT
ec26815a	76	extern int afs_cache_get_page_cookie(struct page , struct cachefs_page *);
1da177e4 LT	77	#endif
	78
	79	/*
	80	* inode.c
	81	*/
ec26815a DH	82	extern int afs_iget(struct super_block , struct afs_fid , struct inode **);
	83	extern int afs_inode_getattr(struct vfsmount , struct dentry ,
	84	struct kstat *);
	85	extern void afs_clear_inode(struct inode *);
1da177e4 LT	86
	87	/*
	88	* main.c
	89	*/
	90	#ifdef AFS_CACHING_SUPPORT
	91	extern struct cachefs_netfs afs_cache_netfs;
	92	#endif
	93
	94	/*
	95	* mntpt.c
	96	*/
754661f1	97	extern const struct inode_operations afs_mntpt_inode_operations;
4b6f5d20	98	extern const struct file_operations afs_mntpt_file_operations;
1da177e4 LT	99	extern struct afs_timer afs_mntpt_expiry_timer;
	100	extern struct afs_timer_ops afs_mntpt_expiry_timer_ops;
	101	extern unsigned long afs_mntpt_expiry_timeout;
	102
ec26815a	103	extern int afs_mntpt_check_symlink(struct afs_vnode *);
1da177e4 LT	104
	105	/*
	106	* super.c
	107	*/
	108	extern int afs_fs_init(void);
	109	extern void afs_fs_exit(void);
	110
	111	#define AFS_CB_HASH_COUNT (PAGE_SIZE / sizeof(struct list_head))
	112
	113	extern struct list_head afs_cb_hash_tbl[];
	114	extern spinlock_t afs_cb_hash_lock;
	115
ec26815a DH	116	#define afs_cb_hash(SRV, FID) \
	117	afs_cb_hash_tbl[((unsigned long)(SRV) + \
	118	(FID)->vid + (FID)->vnode + (FID)->unique) & \
	119	(AFS_CB_HASH_COUNT - 1)]
1da177e4 LT	120
	121	/*
	122	* proc.c
	123	*/
	124	extern int afs_proc_init(void);
	125	extern void afs_proc_cleanup(void);
ec26815a DH	126	extern int afs_proc_cell_setup(struct afs_cell *);
ec26815a DH	127	extern void afs_proc_cell_remove(struct afs_cell *);
1da177e4 LT	128
1da177e4 LT	129	#endif /* AFS_INTERNAL_H */