[net-next-2.6.git] / fs / gfs2 / incore.h

/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU General Public License version 2.
 */

#ifndef __INCORE_DOT_H__
#define __INCORE_DOT_H__

#include <linux/fs.h>

#define DIO_WAIT	0x00000010
#define DIO_METADATA	0x00000020
#define DIO_ALL		0x00000100

struct gfs2_log_operations;
struct gfs2_log_element;
struct gfs2_holder;
struct gfs2_glock;
struct gfs2_quota_data;
struct gfs2_trans;
struct gfs2_ail;
struct gfs2_jdesc;
struct gfs2_sbd;

typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret);

struct gfs2_log_header_host {
	u64 lh_sequence;	/* Sequence number of this transaction */
	u32 lh_flags;		/* GFS2_LOG_HEAD_... */
	u32 lh_tail;		/* Block number of log tail */
	u32 lh_blkno;
	u32 lh_hash;
};

/*
 * Structure of operations that are associated with each
 * type of element in the log.
 */

struct gfs2_log_operations {
	void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le);
	void (*lo_incore_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr);
	void (*lo_before_commit) (struct gfs2_sbd *sdp);
	void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai);
	void (*lo_before_scan) (struct gfs2_jdesc *jd,
				struct gfs2_log_header_host *head, int pass);
	int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start,
				 struct gfs2_log_descriptor *ld, __be64 *ptr,
				 int pass);
	void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass);
	const char *lo_name;
};

struct gfs2_log_element {
	struct list_head le_list;
	const struct gfs2_log_operations *le_ops;
};

struct gfs2_bitmap {
	struct buffer_head *bi_bh;
	char *bi_clone;
	u32 bi_offset;
	u32 bi_start;
	u32 bi_len;
};

struct gfs2_rgrp_host {
	u32 rg_flags;
	u32 rg_free;
	u32 rg_dinodes;
	u64 rg_igeneration;
};

struct gfs2_rgrpd {
	struct list_head rd_list;	/* Link with superblock */
	struct list_head rd_list_mru;
	struct list_head rd_recent;	/* Recently used rgrps */
	struct gfs2_glock *rd_gl;	/* Glock for this rgrp */
	u64 rd_addr;			/* grp block disk address */
	u64 rd_data0;			/* first data location */
	u32 rd_length;			/* length of rgrp header in fs blocks */
	u32 rd_data;			/* num of data blocks in rgrp */
	u32 rd_bitbytes;		/* number of bytes in data bitmaps */
	struct gfs2_rgrp_host rd_rg;
	u64 rd_rg_vn;
	struct gfs2_bitmap *rd_bits;
	unsigned int rd_bh_count;
	struct mutex rd_mutex;
	u32 rd_free_clone;
	struct gfs2_log_element rd_le;
	u32 rd_last_alloc_data;
	u32 rd_last_alloc_meta;
	struct gfs2_sbd *rd_sbd;
};

enum gfs2_state_bits {
	BH_Pinned = BH_PrivateStart,
	BH_Escaped = BH_PrivateStart + 1,
};

BUFFER_FNS(Pinned, pinned)
TAS_BUFFER_FNS(Pinned, pinned)
BUFFER_FNS(Escaped, escaped)
TAS_BUFFER_FNS(Escaped, escaped)

struct gfs2_bufdata {
	struct buffer_head *bd_bh;
	struct gfs2_glock *bd_gl;

	struct list_head bd_list_tr;
	struct gfs2_log_element bd_le;

	struct gfs2_ail *bd_ail;
	struct list_head bd_ail_st_list;
	struct list_head bd_ail_gl_list;
};

struct gfs2_glock_operations {
	void (*go_xmote_th) (struct gfs2_glock *gl);
	void (*go_xmote_bh) (struct gfs2_glock *gl);
	void (*go_drop_th) (struct gfs2_glock *gl);
	void (*go_inval) (struct gfs2_glock *gl, int flags);
	int (*go_demote_ok) (struct gfs2_glock *gl);
	int (*go_lock) (struct gfs2_holder *gh);
	void (*go_unlock) (struct gfs2_holder *gh);
	const int go_type;
};

enum {
	/* Actions */
	HIF_MUTEX		= 0,
	HIF_PROMOTE		= 1,

	/* States */
	HIF_HOLDER		= 6,
	HIF_FIRST		= 7,
	HIF_ABORTED		= 9,
	HIF_WAIT		= 10,
};

struct gfs2_holder {
	struct list_head gh_list;

	struct gfs2_glock *gh_gl;
	pid_t gh_owner_pid;
	unsigned int gh_state;
	unsigned gh_flags;

	int gh_error;
	unsigned long gh_iflags;
	unsigned long gh_ip;
};

enum {
	GLF_LOCK		= 1,
	GLF_STICKY		= 2,
	GLF_DEMOTE		= 3,
	GLF_DIRTY		= 5,
};

struct gfs2_glock {
	struct hlist_node gl_list;
	unsigned long gl_flags;		/* GLF_... */
	struct lm_lockname gl_name;
	atomic_t gl_ref;

	spinlock_t gl_spin;

	unsigned int gl_state;
	unsigned int gl_hash;
	unsigned int gl_demote_state; /* state requested by remote node */
	unsigned long gl_demote_time; /* time of first demote request */
	pid_t gl_owner_pid;
	unsigned long gl_ip;
	struct list_head gl_holders;
	struct list_head gl_waiters1;	/* HIF_MUTEX */
	struct list_head gl_waiters3;	/* HIF_PROMOTE */

	const struct gfs2_glock_operations *gl_ops;

	struct gfs2_holder *gl_req_gh;
	gfs2_glop_bh_t gl_req_bh;

	void *gl_lock;
	char *gl_lvb;
	atomic_t gl_lvb_count;

	u64 gl_vn;
	unsigned long gl_stamp;
	void *gl_object;

	struct list_head gl_reclaim;

	struct gfs2_sbd *gl_sbd;

	struct inode *gl_aspace;
	struct gfs2_log_element gl_le;
	struct list_head gl_ail_list;
	atomic_t gl_ail_count;
};

struct gfs2_alloc {
	/* Quota stuff */

	struct gfs2_quota_data *al_qd[2*MAXQUOTAS];
	struct gfs2_holder al_qd_ghs[2*MAXQUOTAS];
	unsigned int al_qd_num;

	u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */
	u32 al_alloced; /* Filled in by gfs2_alloc_*() */

	/* Filled in by gfs2_inplace_reserve() */

	unsigned int al_line;
	char *al_file;
	struct gfs2_holder al_ri_gh;
	struct gfs2_holder al_rgd_gh;
	struct gfs2_rgrpd *al_rgd;

};

enum {
	GIF_INVALID		= 0,
	GIF_QD_LOCKED		= 1,
	GIF_PAGED		= 2,
	GIF_SW_PAGED		= 3,
};

struct gfs2_dinode_host {
	u64 di_size;		/* number of bytes in file */
	u64 di_blocks;		/* number of blocks in file */
	u64 di_goal_meta;	/* rgrp to alloc from next */
	u64 di_goal_data;	/* data block goal */
	u64 di_generation;	/* generation number for NFS */
	u32 di_flags;		/* GFS2_DIF_... */
	u16 di_height;		/* height of metadata */
	/* These only apply to directories  */
	u16 di_depth;		/* Number of bits in the table */
	u32 di_entries;		/* The number of entries in the directory */
	u64 di_eattr;		/* extended attribute block number */
};

struct gfs2_inode {
	struct inode i_inode;
	u64 i_no_addr;
	u64 i_no_formal_ino;
	unsigned long i_flags;		/* GIF_... */

	struct gfs2_dinode_host i_di; /* To be replaced by ref to block */

	struct gfs2_glock *i_gl; /* Move into i_gh? */
	struct gfs2_holder i_iopen_gh;
	struct gfs2_holder i_gh; /* for prepare/commit_write only */
	struct gfs2_alloc i_alloc;
	u64 i_last_rg_alloc;

	spinlock_t i_spin;
	struct rw_semaphore i_rw_mutex;
	unsigned long i_last_pfault;

	struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
};

/*
 * Since i_inode is the first element of struct gfs2_inode,
 * this is effectively a cast.
 */
static inline struct gfs2_inode *GFS2_I(struct inode *inode)
{
	return container_of(inode, struct gfs2_inode, i_inode);
}

/* To be removed? */
static inline struct gfs2_sbd *GFS2_SB(struct inode *inode)
{
	return inode->i_sb->s_fs_info;
}

enum {
	GFF_DID_DIRECT_ALLOC	= 0,
	GFF_EXLOCK = 1,
};

struct gfs2_file {
	unsigned long f_flags;		/* GFF_... */
	struct mutex f_fl_mutex;
	struct gfs2_holder f_fl_gh;
};

struct gfs2_revoke {
	struct gfs2_log_element rv_le;
	u64 rv_blkno;
};

struct gfs2_revoke_replay {
	struct list_head rr_list;
	u64 rr_blkno;
	unsigned int rr_where;
};

enum {
	QDF_USER		= 0,
	QDF_CHANGE		= 1,
	QDF_LOCKED		= 2,
};

struct gfs2_quota_data {
	struct list_head qd_list;
	unsigned int qd_count;

	u32 qd_id;
	unsigned long qd_flags;		/* QDF_... */

	s64 qd_change;
	s64 qd_change_sync;

	unsigned int qd_slot;
	unsigned int qd_slot_count;

	struct buffer_head *qd_bh;
	struct gfs2_quota_change *qd_bh_qc;
	unsigned int qd_bh_count;

	struct gfs2_glock *qd_gl;
	struct gfs2_quota_lvb qd_qb;

	u64 qd_sync_gen;
	unsigned long qd_last_warn;
	unsigned long qd_last_touched;
};

struct gfs2_log_buf {
	struct list_head lb_list;
	struct buffer_head *lb_bh;
	struct buffer_head *lb_real;
};

struct gfs2_trans {
	unsigned long tr_ip;

	unsigned int tr_blocks;
	unsigned int tr_revokes;
	unsigned int tr_reserved;

	struct gfs2_holder tr_t_gh;

	int tr_touched;

	unsigned int tr_num_buf;
	unsigned int tr_num_buf_new;
	unsigned int tr_num_buf_rm;
	struct list_head tr_list_buf;

	unsigned int tr_num_revoke;
	unsigned int tr_num_revoke_rm;
};

struct gfs2_ail {
	struct list_head ai_list;

	unsigned int ai_first;
	struct list_head ai_ail1_list;
	struct list_head ai_ail2_list;

	u64 ai_sync_gen;
};

struct gfs2_jdesc {
	struct list_head jd_list;

	struct inode *jd_inode;
	unsigned int jd_jid;
	int jd_dirty;

	unsigned int jd_blocks;
};

struct gfs2_statfs_change_host {
	s64 sc_total;
	s64 sc_free;
	s64 sc_dinodes;
};

#define GFS2_GLOCKD_DEFAULT	1
#define GFS2_GLOCKD_MAX		16

#define GFS2_QUOTA_DEFAULT	GFS2_QUOTA_OFF
#define GFS2_QUOTA_OFF		0
#define GFS2_QUOTA_ACCOUNT	1
#define GFS2_QUOTA_ON		2

#define GFS2_DATA_DEFAULT	GFS2_DATA_ORDERED
#define GFS2_DATA_WRITEBACK	1
#define GFS2_DATA_ORDERED	2

struct gfs2_args {
	char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */
	char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */
	char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */
	int ar_spectator; /* Don't get a journal because we're always RO */
	int ar_ignore_local_fs; /* Don't optimize even if local_fs is 1 */
	int ar_localflocks; /* Let the VFS do flock|fcntl locks for us */
	int ar_localcaching; /* Local-style caching (dangerous on multihost) */
	int ar_debug; /* Oops on errors instead of trying to be graceful */
	int ar_upgrade; /* Upgrade ondisk/multihost format */
	unsigned int ar_num_glockd; /* Number of glockd threads */
	int ar_posix_acl; /* Enable posix acls */
	int ar_quota; /* off/account/on */
	int ar_suiddir; /* suiddir support */
	int ar_data; /* ordered/writeback */
};

struct gfs2_tune {
	spinlock_t gt_spin;

	unsigned int gt_ilimit;
	unsigned int gt_ilimit_tries;
	unsigned int gt_ilimit_min;
	unsigned int gt_demote_secs; /* Cache retention for unheld glock */
	unsigned int gt_incore_log_blocks;
	unsigned int gt_log_flush_secs;
	unsigned int gt_jindex_refresh_secs; /* Check for new journal index */

	unsigned int gt_scand_secs;
	unsigned int gt_recoverd_secs;
	unsigned int gt_logd_secs;
	unsigned int gt_quotad_secs;

	unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
	unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
	unsigned int gt_quota_scale_num; /* Numerator */
	unsigned int gt_quota_scale_den; /* Denominator */
	unsigned int gt_quota_cache_secs;
	unsigned int gt_quota_quantum; /* Secs between syncs to quota file */
	unsigned int gt_atime_quantum; /* Min secs between atime updates */
	unsigned int gt_new_files_jdata;
	unsigned int gt_new_files_directio;
	unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */
	unsigned int gt_lockdump_size;
	unsigned int gt_stall_secs; /* Detects trouble! */
	unsigned int gt_complain_secs;
	unsigned int gt_reclaim_limit; /* Max num of glocks in reclaim list */
	unsigned int gt_statfs_quantum;
	unsigned int gt_statfs_slow;
};

enum {
	SDF_JOURNAL_CHECKED	= 0,
	SDF_JOURNAL_LIVE	= 1,
	SDF_SHUTDOWN		= 2,
	SDF_NOATIME		= 3,
};

#define GFS2_FSNAME_LEN		256

struct gfs2_inum_host {
	u64 no_formal_ino;
	u64 no_addr;
};

struct gfs2_sb_host {
	u32 sb_magic;
	u32 sb_type;
	u32 sb_format;

	u32 sb_fs_format;
	u32 sb_multihost_format;
	u32 sb_bsize;
	u32 sb_bsize_shift;

	struct gfs2_inum_host sb_master_dir;
	struct gfs2_inum_host sb_root_dir;

	char sb_lockproto[GFS2_LOCKNAME_LEN];
	char sb_locktable[GFS2_LOCKNAME_LEN];
};

struct gfs2_sbd {
	struct super_block *sd_vfs;
	struct super_block *sd_vfs_meta;
	struct kobject sd_kobj;
	unsigned long sd_flags;	/* SDF_... */
	struct gfs2_sb_host sd_sb;

	/* Constants computed on mount */

	u32 sd_fsb2bb;
	u32 sd_fsb2bb_shift;
	u32 sd_diptrs;	/* Number of pointers in a dinode */
	u32 sd_inptrs;	/* Number of pointers in a indirect block */
	u32 sd_jbsize;	/* Size of a journaled data block */
	u32 sd_hash_bsize;	/* sizeof(exhash block) */
	u32 sd_hash_bsize_shift;
	u32 sd_hash_ptrs;	/* Number of pointers in a hash block */
	u32 sd_qc_per_block;
	u32 sd_max_dirres;	/* Max blocks needed to add a directory entry */
	u32 sd_max_height;	/* Max height of a file's metadata tree */
	u64 sd_heightsize[GFS2_MAX_META_HEIGHT];
	u32 sd_max_jheight; /* Max height of journaled file's meta tree */
	u64 sd_jheightsize[GFS2_MAX_META_HEIGHT];

	struct gfs2_args sd_args;	/* Mount arguments */
	struct gfs2_tune sd_tune;	/* Filesystem tuning structure */

	/* Lock Stuff */

	struct lm_lockstruct sd_lockstruct;
	struct list_head sd_reclaim_list;
	spinlock_t sd_reclaim_lock;
	wait_queue_head_t sd_reclaim_wq;
	atomic_t sd_reclaim_count;
	struct gfs2_holder sd_live_gh;
	struct gfs2_glock *sd_rename_gl;
	struct gfs2_glock *sd_trans_gl;

	/* Inode Stuff */

	struct inode *sd_master_dir;
	struct inode *sd_jindex;
	struct inode *sd_inum_inode;
	struct inode *sd_statfs_inode;
	struct inode *sd_ir_inode;
	struct inode *sd_sc_inode;
	struct inode *sd_qc_inode;
	struct inode *sd_rindex;
	struct inode *sd_quota_inode;

	/* Inum stuff */

	struct mutex sd_inum_mutex;

	/* StatFS stuff */

	spinlock_t sd_statfs_spin;
	struct mutex sd_statfs_mutex;
	struct gfs2_statfs_change_host sd_statfs_master;
	struct gfs2_statfs_change_host sd_statfs_local;
	unsigned long sd_statfs_sync_time;

	/* Resource group stuff */

	u64 sd_rindex_vn;
	spinlock_t sd_rindex_spin;
	struct mutex sd_rindex_mutex;
	struct list_head sd_rindex_list;
	struct list_head sd_rindex_mru_list;
	struct list_head sd_rindex_recent_list;
	struct gfs2_rgrpd *sd_rindex_forward;
	unsigned int sd_rgrps;

	/* Journal index stuff */

	struct list_head sd_jindex_list;
	spinlock_t sd_jindex_spin;
	struct mutex sd_jindex_mutex;
	unsigned int sd_journals;
	unsigned long sd_jindex_refresh_time;

	struct gfs2_jdesc *sd_jdesc;
	struct gfs2_holder sd_journal_gh;
	struct gfs2_holder sd_jinode_gh;

	struct gfs2_holder sd_ir_gh;
	struct gfs2_holder sd_sc_gh;
	struct gfs2_holder sd_qc_gh;

	/* Daemon stuff */

	struct task_struct *sd_scand_process;
	struct task_struct *sd_recoverd_process;
	struct task_struct *sd_logd_process;
	struct task_struct *sd_quotad_process;
	struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX];
	unsigned int sd_glockd_num;

	/* Quota stuff */

	struct list_head sd_quota_list;
	atomic_t sd_quota_count;
	spinlock_t sd_quota_spin;
	struct mutex sd_quota_mutex;

	unsigned int sd_quota_slots;
	unsigned int sd_quota_chunks;
	unsigned char **sd_quota_bitmap;

	u64 sd_quota_sync_gen;
	unsigned long sd_quota_sync_time;

	/* Log stuff */

	spinlock_t sd_log_lock;

	unsigned int sd_log_blks_reserved;
	unsigned int sd_log_commited_buf;
	unsigned int sd_log_commited_revoke;

	unsigned int sd_log_num_gl;
	unsigned int sd_log_num_buf;
	unsigned int sd_log_num_revoke;
	unsigned int sd_log_num_rg;
	unsigned int sd_log_num_databuf;
	unsigned int sd_log_num_jdata;
	unsigned int sd_log_num_hdrs;

	struct list_head sd_log_le_gl;
	struct list_head sd_log_le_buf;
	struct list_head sd_log_le_revoke;
	struct list_head sd_log_le_rg;
	struct list_head sd_log_le_databuf;

	unsigned int sd_log_blks_free;
	struct mutex sd_log_reserve_mutex;

	u64 sd_log_sequence;
	unsigned int sd_log_head;
	unsigned int sd_log_tail;
	int sd_log_idle;

	unsigned long sd_log_flush_time;
	struct rw_semaphore sd_log_flush_lock;
	struct list_head sd_log_flush_list;

	unsigned int sd_log_flush_head;
	u64 sd_log_flush_wrapped;

	struct list_head sd_ail1_list;
	struct list_head sd_ail2_list;
	u64 sd_ail_sync_gen;

	/* Replay stuff */

	struct list_head sd_revoke_list;
	unsigned int sd_replay_tail;

	unsigned int sd_found_blocks;
	unsigned int sd_found_revokes;
	unsigned int sd_replayed_blocks;

	/* For quiescing the filesystem */

	struct gfs2_holder sd_freeze_gh;
	struct mutex sd_freeze_lock;
	unsigned int sd_freeze_count;

	/* Counters */

	atomic_t sd_glock_count;
	atomic_t sd_glock_held_count;
	atomic_t sd_inode_count;
	atomic_t sd_reclaimed;

	char sd_fsname[GFS2_FSNAME_LEN];
	char sd_table_name[GFS2_FSNAME_LEN];
	char sd_proto_name[GFS2_FSNAME_LEN];

	/* Debugging crud */

	unsigned long sd_last_warning;
	struct vfsmount *sd_gfs2mnt;
	struct dentry *debugfs_dir;    /* debugfs directory */
	struct dentry *debugfs_dentry_glocks; /* for debugfs */
};

#endif /* __INCORE_DOT_H__ */
Commit	Line	Data
b3b94faa DT	1	/*
b3b94faa DT	2	* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3a8a9a10	3	* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
b3b94faa DT	4	*
	5	* This copyrighted material is made available to anyone wishing to use,
	6	* modify, copy, or redistribute it subject to the terms and conditions
e9fc2aa0	7	* of the GNU General Public License version 2.
b3b94faa DT	8	*/
	9
	10	#ifndef __INCORE_DOT_H__
	11	#define __INCORE_DOT_H__
	12
f2f7ba52 SW	13	#include <linux/fs.h>
f2f7ba52 SW	14
b3b94faa DT	15	#define DIO_WAIT 0x00000010
b3b94faa DT	16	#define DIO_METADATA 0x00000020
b3b94faa DT	17	#define DIO_ALL 0x00000100
	18
	19	struct gfs2_log_operations;
	20	struct gfs2_log_element;
b3b94faa DT	21	struct gfs2_holder;
b3b94faa DT	22	struct gfs2_glock;
b3b94faa	23	struct gfs2_quota_data;
b3b94faa DT	24	struct gfs2_trans;
	25	struct gfs2_ail;
	26	struct gfs2_jdesc;
b3b94faa DT	27	struct gfs2_sbd;
	28
	29	typedef void (gfs2_glop_bh_t) (struct gfs2_glock gl, unsigned int ret);
	30
bb8d8a6f SW	31	struct gfs2_log_header_host {
	32	u64 lh_sequence; /* Sequence number of this transaction */
	33	u32 lh_flags; /* GFS2_LOG_HEAD_... */
	34	u32 lh_tail; /* Block number of log tail */
	35	u32 lh_blkno;
	36	u32 lh_hash;
	37	};
	38
b3b94faa DT	39	/*
	40	* Structure of operations that are associated with each
	41	* type of element in the log.
	42	*/
	43
	44	struct gfs2_log_operations {
	45	void (lo_add) (struct gfs2_sbd sdp, struct gfs2_log_element *le);
	46	void (lo_incore_commit) (struct gfs2_sbd sdp, struct gfs2_trans *tr);
	47	void (lo_before_commit) (struct gfs2_sbd sdp);
	48	void (lo_after_commit) (struct gfs2_sbd sdp, struct gfs2_ail *ai);
	49	void (lo_before_scan) (struct gfs2_jdesc jd,
55167622	50	struct gfs2_log_header_host *head, int pass);
b3b94faa DT	51	int (lo_scan_elements) (struct gfs2_jdesc jd, unsigned int start,
	52	struct gfs2_log_descriptor ld, __be64 ptr,
	53	int pass);
	54	void (lo_after_scan) (struct gfs2_jdesc jd, int error, int pass);
b09e593d	55	const char *lo_name;
b3b94faa DT	56	};
	57
	58	struct gfs2_log_element {
	59	struct list_head le_list;
b09e593d	60	const struct gfs2_log_operations *le_ops;
b3b94faa DT	61	};
	62
	63	struct gfs2_bitmap {
	64	struct buffer_head *bi_bh;
	65	char *bi_clone;
cd915493 SW	66	u32 bi_offset;
	67	u32 bi_start;
	68	u32 bi_len;
b3b94faa DT	69	};
b3b94faa DT	70
bb8d8a6f SW	71	struct gfs2_rgrp_host {
	72	u32 rg_flags;
	73	u32 rg_free;
	74	u32 rg_dinodes;
	75	u64 rg_igeneration;
	76	};
	77
b3b94faa DT	78	struct gfs2_rgrpd {
	79	struct list_head rd_list; /* Link with superblock */
	80	struct list_head rd_list_mru;
	81	struct list_head rd_recent; /* Recently used rgrps */
	82	struct gfs2_glock rd_gl; / Glock for this rgrp */
bb8d8a6f SW	83	u64 rd_addr; /* grp block disk address */
	84	u64 rd_data0; /* first data location */
	85	u32 rd_length; /* length of rgrp header in fs blocks */
	86	u32 rd_data; /* num of data blocks in rgrp */
	87	u32 rd_bitbytes; /* number of bytes in data bitmaps */
68826664	88	struct gfs2_rgrp_host rd_rg;
cd915493	89	u64 rd_rg_vn;
b3b94faa DT	90	struct gfs2_bitmap *rd_bits;
b3b94faa DT	91	unsigned int rd_bh_count;
f55ab26a	92	struct mutex rd_mutex;
cd915493	93	u32 rd_free_clone;
b3b94faa	94	struct gfs2_log_element rd_le;
cd915493 SW	95	u32 rd_last_alloc_data;
cd915493 SW	96	u32 rd_last_alloc_meta;
b3b94faa DT	97	struct gfs2_sbd *rd_sbd;
	98	};
	99
	100	enum gfs2_state_bits {
	101	BH_Pinned = BH_PrivateStart,
f42faf4f	102	BH_Escaped = BH_PrivateStart + 1,
b3b94faa DT	103	};
	104
	105	BUFFER_FNS(Pinned, pinned)
	106	TAS_BUFFER_FNS(Pinned, pinned)
f42faf4f SW	107	BUFFER_FNS(Escaped, escaped)
f42faf4f SW	108	TAS_BUFFER_FNS(Escaped, escaped)
b3b94faa DT	109
	110	struct gfs2_bufdata {
	111	struct buffer_head *bd_bh;
	112	struct gfs2_glock *bd_gl;
	113
	114	struct list_head bd_list_tr;
	115	struct gfs2_log_element bd_le;
	116
	117	struct gfs2_ail *bd_ail;
	118	struct list_head bd_ail_st_list;
	119	struct list_head bd_ail_gl_list;
	120	};
	121
b3b94faa	122	struct gfs2_glock_operations {
b5d32bea	123	void (go_xmote_th) (struct gfs2_glock gl);
1a14d3a6 SW	124	void (go_xmote_bh) (struct gfs2_glock gl);
1a14d3a6 SW	125	void (go_drop_th) (struct gfs2_glock gl);
1a14d3a6 SW	126	void (go_inval) (struct gfs2_glock gl, int flags);
	127	int (go_demote_ok) (struct gfs2_glock gl);
	128	int (go_lock) (struct gfs2_holder gh);
	129	void (go_unlock) (struct gfs2_holder gh);
8fb4b536	130	const int go_type;
b3b94faa DT	131	};
	132
	133	enum {
	134	/* Actions */
	135	HIF_MUTEX = 0,
	136	HIF_PROMOTE = 1,
b3b94faa DT	137
b3b94faa DT	138	/* States */
b3b94faa DT	139	HIF_HOLDER = 6,
b3b94faa DT	140	HIF_FIRST = 7,
b3b94faa	141	HIF_ABORTED = 9,
fee852e3	142	HIF_WAIT = 10,
b3b94faa DT	143	};
	144
	145	struct gfs2_holder {
	146	struct list_head gh_list;
	147
	148	struct gfs2_glock *gh_gl;
04b933f2	149	pid_t gh_owner_pid;
b3b94faa	150	unsigned int gh_state;
fe1bdedc	151	unsigned gh_flags;
b3b94faa DT	152
b3b94faa DT	153	int gh_error;
695165df	154	unsigned long gh_iflags;
d0dc80db	155	unsigned long gh_ip;
b3b94faa DT	156	};
	157
	158	enum {
b3b94faa DT	159	GLF_LOCK = 1,
b3b94faa DT	160	GLF_STICKY = 2,
3b8249f6	161	GLF_DEMOTE = 3,
b3b94faa	162	GLF_DIRTY = 5,
b3b94faa DT	163	};
	164
	165	struct gfs2_glock {
b6397893	166	struct hlist_node gl_list;
b3b94faa DT	167	unsigned long gl_flags; /* GLF_... */
b3b94faa DT	168	struct lm_lockname gl_name;
16feb9fe	169	atomic_t gl_ref;
b3b94faa DT	170
	171	spinlock_t gl_spin;
	172
	173	unsigned int gl_state;
37b2fa6a	174	unsigned int gl_hash;
3b8249f6 SW	175	unsigned int gl_demote_state; /* state requested by remote node */
3b8249f6 SW	176	unsigned long gl_demote_time; /* time of first demote request */
04b933f2	177	pid_t gl_owner_pid;
320dd101	178	unsigned long gl_ip;
b3b94faa DT	179	struct list_head gl_holders;
b3b94faa DT	180	struct list_head gl_waiters1; /* HIF_MUTEX */
b3b94faa DT	181	struct list_head gl_waiters3; /* HIF_PROMOTE */
b3b94faa DT	182
8fb4b536	183	const struct gfs2_glock_operations *gl_ops;
b3b94faa DT	184
	185	struct gfs2_holder *gl_req_gh;
	186	gfs2_glop_bh_t gl_req_bh;
	187
9b47c11d	188	void *gl_lock;
b3b94faa DT	189	char *gl_lvb;
	190	atomic_t gl_lvb_count;
	191
cd915493	192	u64 gl_vn;
b3b94faa DT	193	unsigned long gl_stamp;
	194	void *gl_object;
	195
b3b94faa DT	196	struct list_head gl_reclaim;
	197
	198	struct gfs2_sbd *gl_sbd;
	199
	200	struct inode *gl_aspace;
	201	struct gfs2_log_element gl_le;
	202	struct list_head gl_ail_list;
	203	atomic_t gl_ail_count;
	204	};
	205
	206	struct gfs2_alloc {
	207	/* Quota stuff */
	208
e9fc2aa0 SW	209	struct gfs2_quota_data al_qd[2MAXQUOTAS];
e9fc2aa0 SW	210	struct gfs2_holder al_qd_ghs[2*MAXQUOTAS];
6b61b072	211	unsigned int al_qd_num;
b3b94faa	212
6b61b072 SW	213	u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */
6b61b072 SW	214	u32 al_alloced; /* Filled in by gfs2_alloc_() /
b3b94faa DT	215
	216	/* Filled in by gfs2_inplace_reserve() */
	217
b3b94faa	218	unsigned int al_line;
6b61b072	219	char *al_file;
b3b94faa DT	220	struct gfs2_holder al_ri_gh;
	221	struct gfs2_holder al_rgd_gh;
	222	struct gfs2_rgrpd *al_rgd;
	223
b3b94faa DT	224	};
	225
	226	enum {
bfded27b	227	GIF_INVALID = 0,
b3b94faa DT	228	GIF_QD_LOCKED = 1,
	229	GIF_PAGED = 2,
	230	GIF_SW_PAGED = 3,
	231	};
	232
bb8d8a6f SW	233	struct gfs2_dinode_host {
	234	u64 di_size; /* number of bytes in file */
	235	u64 di_blocks; /* number of blocks in file */
	236	u64 di_goal_meta; /* rgrp to alloc from next */
	237	u64 di_goal_data; /* data block goal */
	238	u64 di_generation; /* generation number for NFS */
	239	u32 di_flags; /* GFS2_DIF_... */
	240	u16 di_height; /* height of metadata */
	241	/* These only apply to directories */
	242	u16 di_depth; /* Number of bits in the table */
	243	u32 di_entries; /* The number of entries in the directory */
	244	u64 di_eattr; /* extended attribute block number */
	245	};
	246
b3b94faa	247	struct gfs2_inode {
320dd101	248	struct inode i_inode;
dbb7cae2 SW	249	u64 i_no_addr;
dbb7cae2 SW	250	u64 i_no_formal_ino;
b3b94faa DT	251	unsigned long i_flags; /* GIF_... */
b3b94faa DT	252
5c6edb57	253	struct gfs2_dinode_host i_di; /* To be replaced by ref to block */
b3b94faa	254
feaa7bba	255	struct gfs2_glock i_gl; / Move into i_gh? */
b3b94faa	256	struct gfs2_holder i_iopen_gh;
f42faf4f	257	struct gfs2_holder i_gh; /* for prepare/commit_write only */
b3b94faa	258	struct gfs2_alloc i_alloc;
cd915493	259	u64 i_last_rg_alloc;
b3b94faa DT	260
	261	spinlock_t i_spin;
	262	struct rw_semaphore i_rw_mutex;
b3b94faa DT	263	unsigned long i_last_pfault;
	264
	265	struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
	266	};
	267
feaa7bba SW	268	/*
	269	* Since i_inode is the first element of struct gfs2_inode,
	270	* this is effectively a cast.
	271	*/
320dd101 SW	272	static inline struct gfs2_inode GFS2_I(struct inode inode)
	273	{
	274	return container_of(inode, struct gfs2_inode, i_inode);
	275	}
	276
feaa7bba SW	277	/* To be removed? */
	278	static inline struct gfs2_sbd GFS2_SB(struct inode inode)
	279	{
	280	return inode->i_sb->s_fs_info;
	281	}
	282
b3b94faa DT	283	enum {
b3b94faa DT	284	GFF_DID_DIRECT_ALLOC = 0,
59a1cc6b	285	GFF_EXLOCK = 1,
b3b94faa DT	286	};
	287
	288	struct gfs2_file {
	289	unsigned long f_flags; /* GFF_... */
f55ab26a	290	struct mutex f_fl_mutex;
b3b94faa	291	struct gfs2_holder f_fl_gh;
b3b94faa DT	292	};
	293
	294	struct gfs2_revoke {
	295	struct gfs2_log_element rv_le;
cd915493	296	u64 rv_blkno;
b3b94faa DT	297	};
	298
	299	struct gfs2_revoke_replay {
	300	struct list_head rr_list;
cd915493	301	u64 rr_blkno;
b3b94faa DT	302	unsigned int rr_where;
	303	};
	304
b3b94faa DT	305	enum {
	306	QDF_USER = 0,
	307	QDF_CHANGE = 1,
	308	QDF_LOCKED = 2,
	309	};
	310
	311	struct gfs2_quota_data {
	312	struct list_head qd_list;
	313	unsigned int qd_count;
	314
cd915493	315	u32 qd_id;
b3b94faa DT	316	unsigned long qd_flags; /* QDF_... */
b3b94faa DT	317
cd915493 SW	318	s64 qd_change;
cd915493 SW	319	s64 qd_change_sync;
b3b94faa DT	320
	321	unsigned int qd_slot;
	322	unsigned int qd_slot_count;
	323
	324	struct buffer_head *qd_bh;
	325	struct gfs2_quota_change *qd_bh_qc;
	326	unsigned int qd_bh_count;
	327
	328	struct gfs2_glock *qd_gl;
	329	struct gfs2_quota_lvb qd_qb;
	330
cd915493	331	u64 qd_sync_gen;
b3b94faa DT	332	unsigned long qd_last_warn;
	333	unsigned long qd_last_touched;
	334	};
	335
	336	struct gfs2_log_buf {
	337	struct list_head lb_list;
	338	struct buffer_head *lb_bh;
	339	struct buffer_head *lb_real;
	340	};
	341
	342	struct gfs2_trans {
d0dc80db	343	unsigned long tr_ip;
b3b94faa DT	344
	345	unsigned int tr_blocks;
	346	unsigned int tr_revokes;
	347	unsigned int tr_reserved;
	348
e317ffcb	349	struct gfs2_holder tr_t_gh;
b3b94faa DT	350
	351	int tr_touched;
	352
	353	unsigned int tr_num_buf;
	354	unsigned int tr_num_buf_new;
	355	unsigned int tr_num_buf_rm;
	356	struct list_head tr_list_buf;
	357
	358	unsigned int tr_num_revoke;
	359	unsigned int tr_num_revoke_rm;
	360	};
	361
	362	struct gfs2_ail {
	363	struct list_head ai_list;
	364
	365	unsigned int ai_first;
	366	struct list_head ai_ail1_list;
	367	struct list_head ai_ail2_list;
	368
cd915493	369	u64 ai_sync_gen;
b3b94faa DT	370	};
	371
	372	struct gfs2_jdesc {
	373	struct list_head jd_list;
	374
7359a19c	375	struct inode *jd_inode;
b3b94faa DT	376	unsigned int jd_jid;
	377	int jd_dirty;
	378
	379	unsigned int jd_blocks;
	380	};
	381
bb8d8a6f SW	382	struct gfs2_statfs_change_host {
	383	s64 sc_total;
	384	s64 sc_free;
	385	s64 sc_dinodes;
	386	};
	387
b3b94faa DT	388	#define GFS2_GLOCKD_DEFAULT 1
	389	#define GFS2_GLOCKD_MAX 16
	390
	391	#define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF
	392	#define GFS2_QUOTA_OFF 0
	393	#define GFS2_QUOTA_ACCOUNT 1
	394	#define GFS2_QUOTA_ON 2
	395
	396	#define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED
	397	#define GFS2_DATA_WRITEBACK 1
	398	#define GFS2_DATA_ORDERED 2
	399
	400	struct gfs2_args {
	401	char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */
	402	char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */
	403	char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */
	404	int ar_spectator; /* Don't get a journal because we're always RO */
	405	int ar_ignore_local_fs; /* Don't optimize even if local_fs is 1 */
	406	int ar_localflocks; /* Let the VFS do flock\|fcntl locks for us */
	407	int ar_localcaching; /* Local-style caching (dangerous on multihost) */
	408	int ar_debug; /* Oops on errors instead of trying to be graceful */
	409	int ar_upgrade; /* Upgrade ondisk/multihost format */
	410	unsigned int ar_num_glockd; /* Number of glockd threads */
	411	int ar_posix_acl; /* Enable posix acls */
	412	int ar_quota; /* off/account/on */
	413	int ar_suiddir; /* suiddir support */
	414	int ar_data; /* ordered/writeback */
	415	};
	416
	417	struct gfs2_tune {
	418	spinlock_t gt_spin;
	419
	420	unsigned int gt_ilimit;
	421	unsigned int gt_ilimit_tries;
	422	unsigned int gt_ilimit_min;
	423	unsigned int gt_demote_secs; /* Cache retention for unheld glock */
	424	unsigned int gt_incore_log_blocks;
	425	unsigned int gt_log_flush_secs;
	426	unsigned int gt_jindex_refresh_secs; /* Check for new journal index */
	427
	428	unsigned int gt_scand_secs;
	429	unsigned int gt_recoverd_secs;
	430	unsigned int gt_logd_secs;
	431	unsigned int gt_quotad_secs;
b3b94faa DT	432
	433	unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
	434	unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
	435	unsigned int gt_quota_scale_num; /* Numerator */
	436	unsigned int gt_quota_scale_den; /* Denominator */
	437	unsigned int gt_quota_cache_secs;
	438	unsigned int gt_quota_quantum; /* Secs between syncs to quota file */
	439	unsigned int gt_atime_quantum; /* Min secs between atime updates */
	440	unsigned int gt_new_files_jdata;
	441	unsigned int gt_new_files_directio;
b3b94faa DT	442	unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */
	443	unsigned int gt_lockdump_size;
	444	unsigned int gt_stall_secs; /* Detects trouble! */
	445	unsigned int gt_complain_secs;
	446	unsigned int gt_reclaim_limit; /* Max num of glocks in reclaim list */
b3b94faa DT	447	unsigned int gt_statfs_quantum;
	448	unsigned int gt_statfs_slow;
	449	};
	450
b3b94faa DT	451	enum {
	452	SDF_JOURNAL_CHECKED = 0,
	453	SDF_JOURNAL_LIVE = 1,
	454	SDF_SHUTDOWN = 2,
	455	SDF_NOATIME = 3,
	456	};
	457
b3b94faa DT	458	#define GFS2_FSNAME_LEN 256
b3b94faa DT	459
bb8d8a6f SW	460	struct gfs2_inum_host {
	461	u64 no_formal_ino;
	462	u64 no_addr;
	463	};
	464
	465	struct gfs2_sb_host {
	466	u32 sb_magic;
	467	u32 sb_type;
	468	u32 sb_format;
	469
	470	u32 sb_fs_format;
	471	u32 sb_multihost_format;
	472	u32 sb_bsize;
	473	u32 sb_bsize_shift;
	474
	475	struct gfs2_inum_host sb_master_dir;
	476	struct gfs2_inum_host sb_root_dir;
	477
	478	char sb_lockproto[GFS2_LOCKNAME_LEN];
	479	char sb_locktable[GFS2_LOCKNAME_LEN];
	480	};
	481
b3b94faa DT	482	struct gfs2_sbd {
b3b94faa DT	483	struct super_block *sd_vfs;
86384605	484	struct super_block *sd_vfs_meta;
b3b94faa DT	485	struct kobject sd_kobj;
b3b94faa DT	486	unsigned long sd_flags; /* SDF_... */
f50dfaf7	487	struct gfs2_sb_host sd_sb;
b3b94faa DT	488
	489	/* Constants computed on mount */
	490
cd915493 SW	491	u32 sd_fsb2bb;
	492	u32 sd_fsb2bb_shift;
	493	u32 sd_diptrs; /* Number of pointers in a dinode */
	494	u32 sd_inptrs; /* Number of pointers in a indirect block */
	495	u32 sd_jbsize; /* Size of a journaled data block */
	496	u32 sd_hash_bsize; /* sizeof(exhash block) */
	497	u32 sd_hash_bsize_shift;
	498	u32 sd_hash_ptrs; /* Number of pointers in a hash block */
	499	u32 sd_qc_per_block;
	500	u32 sd_max_dirres; /* Max blocks needed to add a directory entry */
	501	u32 sd_max_height; /* Max height of a file's metadata tree */
	502	u64 sd_heightsize[GFS2_MAX_META_HEIGHT];
	503	u32 sd_max_jheight; /* Max height of journaled file's meta tree */
	504	u64 sd_jheightsize[GFS2_MAX_META_HEIGHT];
b3b94faa DT	505
	506	struct gfs2_args sd_args; /* Mount arguments */
	507	struct gfs2_tune sd_tune; /* Filesystem tuning structure */
	508
	509	/* Lock Stuff */
	510
	511	struct lm_lockstruct sd_lockstruct;
b3b94faa DT	512	struct list_head sd_reclaim_list;
	513	spinlock_t sd_reclaim_lock;
	514	wait_queue_head_t sd_reclaim_wq;
	515	atomic_t sd_reclaim_count;
	516	struct gfs2_holder sd_live_gh;
	517	struct gfs2_glock *sd_rename_gl;
	518	struct gfs2_glock *sd_trans_gl;
b3b94faa DT	519
	520	/* Inode Stuff */
	521
f42faf4f SW	522	struct inode *sd_master_dir;
	523	struct inode *sd_jindex;
	524	struct inode *sd_inum_inode;
	525	struct inode *sd_statfs_inode;
	526	struct inode *sd_ir_inode;
	527	struct inode *sd_sc_inode;
f42faf4f SW	528	struct inode *sd_qc_inode;
	529	struct inode *sd_rindex;
	530	struct inode *sd_quota_inode;
b3b94faa DT	531
	532	/* Inum stuff */
	533
f55ab26a	534	struct mutex sd_inum_mutex;
b3b94faa DT	535
	536	/* StatFS stuff */
	537
	538	spinlock_t sd_statfs_spin;
f55ab26a	539	struct mutex sd_statfs_mutex;
bd209cc0 AV	540	struct gfs2_statfs_change_host sd_statfs_master;
bd209cc0 AV	541	struct gfs2_statfs_change_host sd_statfs_local;
b3b94faa DT	542	unsigned long sd_statfs_sync_time;
	543
	544	/* Resource group stuff */
	545
cd915493	546	u64 sd_rindex_vn;
b3b94faa	547	spinlock_t sd_rindex_spin;
f55ab26a	548	struct mutex sd_rindex_mutex;
b3b94faa DT	549	struct list_head sd_rindex_list;
	550	struct list_head sd_rindex_mru_list;
	551	struct list_head sd_rindex_recent_list;
	552	struct gfs2_rgrpd *sd_rindex_forward;
	553	unsigned int sd_rgrps;
	554
	555	/* Journal index stuff */
	556
	557	struct list_head sd_jindex_list;
	558	spinlock_t sd_jindex_spin;
f55ab26a	559	struct mutex sd_jindex_mutex;
b3b94faa DT	560	unsigned int sd_journals;
	561	unsigned long sd_jindex_refresh_time;
	562
	563	struct gfs2_jdesc *sd_jdesc;
	564	struct gfs2_holder sd_journal_gh;
	565	struct gfs2_holder sd_jinode_gh;
	566
	567	struct gfs2_holder sd_ir_gh;
	568	struct gfs2_holder sd_sc_gh;
b3b94faa DT	569	struct gfs2_holder sd_qc_gh;
	570
	571	/* Daemon stuff */
	572
	573	struct task_struct *sd_scand_process;
	574	struct task_struct *sd_recoverd_process;
	575	struct task_struct *sd_logd_process;
	576	struct task_struct *sd_quotad_process;
b3b94faa DT	577	struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX];
	578	unsigned int sd_glockd_num;
	579
b3b94faa DT	580	/* Quota stuff */
	581
	582	struct list_head sd_quota_list;
	583	atomic_t sd_quota_count;
	584	spinlock_t sd_quota_spin;
f55ab26a	585	struct mutex sd_quota_mutex;
b3b94faa DT	586
	587	unsigned int sd_quota_slots;
	588	unsigned int sd_quota_chunks;
	589	unsigned char **sd_quota_bitmap;
	590
cd915493	591	u64 sd_quota_sync_gen;
b3b94faa DT	592	unsigned long sd_quota_sync_time;
	593
	594	/* Log stuff */
	595
	596	spinlock_t sd_log_lock;
b3b94faa DT	597
	598	unsigned int sd_log_blks_reserved;
	599	unsigned int sd_log_commited_buf;
	600	unsigned int sd_log_commited_revoke;
	601
	602	unsigned int sd_log_num_gl;
	603	unsigned int sd_log_num_buf;
	604	unsigned int sd_log_num_revoke;
	605	unsigned int sd_log_num_rg;
	606	unsigned int sd_log_num_databuf;
f42faf4f	607	unsigned int sd_log_num_jdata;
b09e593d	608	unsigned int sd_log_num_hdrs;
f42faf4f	609
b3b94faa DT	610	struct list_head sd_log_le_gl;
	611	struct list_head sd_log_le_buf;
	612	struct list_head sd_log_le_revoke;
	613	struct list_head sd_log_le_rg;
	614	struct list_head sd_log_le_databuf;
	615
	616	unsigned int sd_log_blks_free;
71b86f56	617	struct mutex sd_log_reserve_mutex;
b3b94faa	618
cd915493	619	u64 sd_log_sequence;
b3b94faa DT	620	unsigned int sd_log_head;
b3b94faa DT	621	unsigned int sd_log_tail;
b3b94faa DT	622	int sd_log_idle;
	623
	624	unsigned long sd_log_flush_time;
484adff8	625	struct rw_semaphore sd_log_flush_lock;
b3b94faa DT	626	struct list_head sd_log_flush_list;
	627
	628	unsigned int sd_log_flush_head;
cd915493	629	u64 sd_log_flush_wrapped;
b3b94faa DT	630
	631	struct list_head sd_ail1_list;
	632	struct list_head sd_ail2_list;
cd915493	633	u64 sd_ail_sync_gen;
b3b94faa DT	634
	635	/* Replay stuff */
	636
	637	struct list_head sd_revoke_list;
	638	unsigned int sd_replay_tail;
	639
	640	unsigned int sd_found_blocks;
	641	unsigned int sd_found_revokes;
	642	unsigned int sd_replayed_blocks;
	643
	644	/* For quiescing the filesystem */
	645
	646	struct gfs2_holder sd_freeze_gh;
f55ab26a	647	struct mutex sd_freeze_lock;
b3b94faa DT	648	unsigned int sd_freeze_count;
	649
	650	/* Counters */
	651
	652	atomic_t sd_glock_count;
	653	atomic_t sd_glock_held_count;
	654	atomic_t sd_inode_count;
b3b94faa	655	atomic_t sd_reclaimed;
b3b94faa DT	656
	657	char sd_fsname[GFS2_FSNAME_LEN];
	658	char sd_table_name[GFS2_FSNAME_LEN];
	659	char sd_proto_name[GFS2_FSNAME_LEN];
	660
	661	/* Debugging crud */
	662
	663	unsigned long sd_last_warning;
86384605	664	struct vfsmount *sd_gfs2mnt;
5f882096 RP	665	struct dentry debugfs_dir; / debugfs directory */
5f882096 RP	666	struct dentry debugfs_dentry_glocks; / for debugfs */
b3b94faa DT	667	};
	668
	669	#endif /* __INCORE_DOT_H__ */
	670