/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 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 v.2.
+ * of the GNU General Public License version 2.
*/
#ifndef __INCORE_DOT_H__
#define __INCORE_DOT_H__
-#define DIO_FORCE 0x00000001
-#define DIO_CLEAN 0x00000002
-#define DIO_DIRTY 0x00000004
-#define DIO_START 0x00000008
+#include <linux/fs.h>
+#include <linux/workqueue.h>
+
#define DIO_WAIT 0x00000010
#define DIO_METADATA 0x00000020
-#define DIO_DATA 0x00000040
-#define DIO_RELEASE 0x00000080
#define DIO_ALL 0x00000100
struct gfs2_log_operations;
struct gfs2_log_element;
-struct gfs2_bitmap;
-struct gfs2_rgrpd;
-struct gfs2_bufdata;
-struct gfs2_glock_operations;
struct gfs2_holder;
struct gfs2_glock;
-struct gfs2_alloc;
-struct gfs2_inode;
-struct gfs2_file;
-struct gfs2_revoke;
-struct gfs2_revoke_replay;
struct gfs2_quota_data;
-struct gfs2_log_buf;
struct gfs2_trans;
struct gfs2_ail;
struct gfs2_jdesc;
-struct gfs2_args;
-struct gfs2_tune;
-struct gfs2_gl_hash_bucket;
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 *head, int pass);
+ 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);
struct gfs2_bitmap {
struct buffer_head *bi_bh;
char *bi_clone;
- uint32_t bi_offset;
- uint32_t bi_start;
- uint32_t bi_len;
+ u32 bi_offset;
+ u32 bi_start;
+ u32 bi_len;
+};
+
+struct gfs2_rgrp_host {
+ u32 rg_free;
+ u32 rg_dinodes;
+ u64 rg_igeneration;
};
struct gfs2_rgrpd {
struct list_head rd_list_mru;
struct list_head rd_recent; /* Recently used rgrps */
struct gfs2_glock *rd_gl; /* Glock for this rgrp */
- struct gfs2_rindex rd_ri;
- struct gfs2_rgrp rd_rg;
- uint64_t rd_rg_vn;
+ 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;
struct gfs2_bitmap *rd_bits;
unsigned int rd_bh_count;
struct mutex rd_mutex;
- uint32_t rd_free_clone;
+ u32 rd_free_clone;
struct gfs2_log_element rd_le;
- uint32_t rd_last_alloc_data;
- uint32_t rd_last_alloc_meta;
+ u32 rd_last_alloc_data;
+ u32 rd_last_alloc_meta;
struct gfs2_sbd *rd_sbd;
+ unsigned char rd_flags;
+#define GFS2_RDF_CHECK 0x01 /* Need to check for unlinked inodes */
+#define GFS2_RDF_NOALLOC 0x02 /* rg prohibits allocation */
+#define GFS2_RDF_UPTODATE 0x04 /* rg is up to date */
};
enum gfs2_state_bits {
struct buffer_head *bd_bh;
struct gfs2_glock *bd_gl;
- struct list_head bd_list_tr;
+ union {
+ struct list_head list_tr;
+ u64 blkno;
+ } u;
+#define bd_list_tr u.list_tr
+#define bd_blkno u.blkno
+
struct gfs2_log_element bd_le;
struct gfs2_ail *bd_ail;
};
struct gfs2_glock_operations {
- void (*go_xmote_th) (struct gfs2_glock * gl, unsigned int state,
- int flags);
- void (*go_xmote_bh) (struct gfs2_glock * gl);
- void (*go_drop_th) (struct gfs2_glock * gl);
- void (*go_drop_bh) (struct gfs2_glock * gl);
- void (*go_sync) (struct gfs2_glock * gl, int flags);
- 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);
- void (*go_callback) (struct gfs2_glock * gl, unsigned int state);
- void (*go_greedy) (struct gfs2_glock * gl);
- int go_type;
+ void (*go_xmote_th) (struct gfs2_glock *gl);
+ void (*go_xmote_bh) (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;
+ const unsigned long go_min_hold_time;
};
enum {
- /* Actions */
- HIF_MUTEX = 0,
- HIF_PROMOTE = 1,
- HIF_DEMOTE = 2,
- HIF_GREEDY = 3,
-
/* States */
- HIF_ALLOCED = 4,
- HIF_DEALLOC = 5,
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;
- struct task_struct *gh_owner;
+ struct pid *gh_owner_pid;
unsigned int gh_state;
unsigned gh_flags;
int gh_error;
unsigned long gh_iflags;
- struct completion gh_wait;
unsigned long gh_ip;
};
enum {
- GLF_PLUG = 0,
GLF_LOCK = 1,
GLF_STICKY = 2,
- GLF_PREFETCH = 3,
- GLF_SYNC = 4,
+ GLF_DEMOTE = 3,
+ GLF_PENDING_DEMOTE = 4,
GLF_DIRTY = 5,
- GLF_SKIP_WAITERS2 = 6,
- GLF_GREEDY = 7,
+ GLF_DEMOTE_IN_PROGRESS = 6,
+ GLF_LFLUSH = 7,
+ GLF_WAITERS2 = 8,
};
struct gfs2_glock {
- struct list_head gl_list;
+ struct hlist_node gl_list;
unsigned long gl_flags; /* GLF_... */
struct lm_lockname gl_name;
- struct kref gl_ref;
+ atomic_t gl_ref;
spinlock_t gl_spin;
unsigned int gl_state;
- struct task_struct *gl_owner;
+ unsigned int gl_hash;
+ unsigned int gl_demote_state; /* state requested by remote node */
+ unsigned long gl_demote_time; /* time of first demote request */
+ struct pid *gl_owner_pid;
unsigned long gl_ip;
struct list_head gl_holders;
struct list_head gl_waiters1; /* HIF_MUTEX */
- struct list_head gl_waiters2; /* HIF_DEMOTE, HIF_GREEDY */
struct list_head gl_waiters3; /* HIF_PROMOTE */
- struct gfs2_glock_operations *gl_ops;
+ const struct gfs2_glock_operations *gl_ops;
struct gfs2_holder *gl_req_gh;
- gfs2_glop_bh_t gl_req_bh;
- lm_lock_t *gl_lock;
+ void *gl_lock;
char *gl_lvb;
atomic_t gl_lvb_count;
- uint64_t gl_vn;
unsigned long gl_stamp;
+ unsigned long gl_tchange;
void *gl_object;
- struct gfs2_gl_hash_bucket *gl_bucket;
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 delayed_work gl_work;
};
+#define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */
+
struct gfs2_alloc {
/* Quota stuff */
- struct gfs2_quota_data *al_qd[4];
- struct gfs2_holder al_qd_ghs[4];
+ 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() */
};
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_... */
+ /* 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;
- struct gfs2_inum i_num;
-
+ u64 i_no_addr;
+ u64 i_no_formal_ino;
unsigned long i_flags; /* GIF_... */
- uint64_t i_vn;
- struct gfs2_dinode i_di; /* To be replaced by ref to block */
+ 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;
- uint64_t i_last_rg_alloc;
+ struct gfs2_alloc *i_alloc;
+ u64 i_last_rg_alloc;
- spinlock_t i_spin;
struct rw_semaphore i_rw_mutex;
- unsigned int i_greedy;
- unsigned long i_last_pfault;
-
- struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
+ u8 i_height;
};
/*
return container_of(inode, struct gfs2_inode, i_inode);
}
-/* To be removed? */
-static inline struct gfs2_sbd *GFS2_SB(struct inode *inode)
+static inline struct gfs2_sbd *GFS2_SB(const 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;
- uint64_t rv_blkno;
-};
-
struct gfs2_revoke_replay {
struct list_head rr_list;
- uint64_t rr_blkno;
+ u64 rr_blkno;
unsigned int rr_where;
};
QDF_LOCKED = 2,
};
-struct gfs2_quota_lvb {
- uint32_t qb_magic;
- uint32_t __pad;
- uint64_t qb_limit; /* Hard limit of # blocks to alloc */
- uint64_t qb_warn; /* Warn user when alloc is above this # */
- int64_t qb_value; /* Current # blocks allocated */
-};
-
struct gfs2_quota_data {
struct list_head qd_list;
unsigned int qd_count;
- uint32_t qd_id;
+ u32 qd_id;
unsigned long qd_flags; /* QDF_... */
- int64_t qd_change;
- int64_t qd_change_sync;
+ s64 qd_change;
+ s64 qd_change_sync;
unsigned int qd_slot;
unsigned int qd_slot_count;
struct gfs2_glock *qd_gl;
struct gfs2_quota_lvb qd_qb;
- uint64_t qd_sync_gen;
+ 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_num_buf;
unsigned int tr_num_buf_new;
+ unsigned int tr_num_databuf_new;
unsigned int tr_num_buf_rm;
+ unsigned int tr_num_databuf_rm;
struct list_head tr_list_buf;
unsigned int tr_num_revoke;
struct list_head ai_ail1_list;
struct list_head ai_ail2_list;
- uint64_t ai_sync_gen;
+ u64 ai_sync_gen;
+};
+
+struct gfs2_journal_extent {
+ struct list_head extent_list;
+
+ unsigned int lblock; /* First logical block */
+ u64 dblock; /* First disk block */
+ u64 blocks;
};
struct gfs2_jdesc {
struct list_head jd_list;
+ struct list_head extent_list;
struct inode *jd_inode;
unsigned int jd_jid;
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
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_atime_quantum; /* Min secs between atime updates */
unsigned int gt_new_files_jdata;
unsigned int gt_new_files_directio;
- unsigned int gt_max_atomic_write; /* Split big writes into this size */
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_entries_per_readdir;
- unsigned int gt_prefetch_secs; /* Usage window for prefetched glocks */
- unsigned int gt_greedy_default;
- unsigned int gt_greedy_quantum;
- unsigned int gt_greedy_max;
unsigned int gt_statfs_quantum;
unsigned int gt_statfs_slow;
};
-struct gfs2_gl_hash_bucket {
- rwlock_t hb_lock;
- struct list_head hb_list;
-};
-
enum {
SDF_JOURNAL_CHECKED = 0,
SDF_JOURNAL_LIVE = 1,
SDF_NOATIME = 3,
};
-#define GFS2_GL_HASH_SHIFT 13
-#define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT)
-#define GFS2_GL_HASH_MASK (GFS2_GL_HASH_SIZE - 1)
#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 sd_sb;
+ struct gfs2_sb_host sd_sb;
/* Constants computed on mount */
- uint32_t sd_fsb2bb;
- uint32_t sd_fsb2bb_shift;
- uint32_t sd_diptrs; /* Number of pointers in a dinode */
- uint32_t sd_inptrs; /* Number of pointers in a indirect block */
- uint32_t sd_jbsize; /* Size of a journaled data block */
- uint32_t sd_hash_bsize; /* sizeof(exhash block) */
- uint32_t sd_hash_bsize_shift;
- uint32_t sd_hash_ptrs; /* Number of pointers in a hash block */
- uint32_t sd_qc_per_block;
- uint32_t sd_max_dirres; /* Max blocks needed to add a directory entry */
- uint32_t sd_max_height; /* Max height of a file's metadata tree */
- uint64_t sd_heightsize[GFS2_MAX_META_HEIGHT];
- uint32_t sd_max_jheight; /* Max height of journaled file's meta tree */
- uint64_t sd_jheightsize[GFS2_MAX_META_HEIGHT];
+ 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 + 1];
+ u32 sd_max_jheight; /* Max height of journaled file's meta tree */
+ u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1];
struct gfs2_args sd_args; /* Mount arguments */
struct gfs2_tune sd_tune; /* Filesystem tuning structure */
/* Lock Stuff */
struct lm_lockstruct sd_lockstruct;
- struct gfs2_gl_hash_bucket sd_gl_hash[GFS2_GL_HASH_SIZE];
struct list_head sd_reclaim_list;
spinlock_t sd_reclaim_lock;
wait_queue_head_t sd_reclaim_wq;
struct gfs2_holder sd_live_gh;
struct gfs2_glock *sd_rename_gl;
struct gfs2_glock *sd_trans_gl;
- struct mutex sd_invalidate_inodes_mutex;
/* Inode Stuff */
/* StatFS stuff */
spinlock_t sd_statfs_spin;
- struct mutex sd_statfs_mutex;
- struct gfs2_statfs_change sd_statfs_master;
- struct gfs2_statfs_change sd_statfs_local;
+ 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 */
- uint64_t sd_rindex_vn;
+ int sd_rindex_uptodate;
spinlock_t sd_rindex_spin;
struct mutex sd_rindex_mutex;
struct list_head sd_rindex_list;
/* 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;
unsigned int sd_quota_chunks;
unsigned char **sd_quota_bitmap;
- uint64_t sd_quota_sync_gen;
+ u64 sd_quota_sync_gen;
unsigned long sd_quota_sync_time;
/* Log stuff */
unsigned int sd_log_blks_reserved;
unsigned int sd_log_commited_buf;
+ unsigned int sd_log_commited_databuf;
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;
+ struct list_head sd_log_le_ordered;
- unsigned int sd_log_blks_free;
+ atomic_t sd_log_blks_free;
struct mutex sd_log_reserve_mutex;
- uint64_t sd_log_sequence;
+ 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;
+ atomic_t sd_log_in_flight;
+ wait_queue_head_t sd_log_flush_wait;
unsigned int sd_log_flush_head;
- uint64_t sd_log_flush_wrapped;
+ u64 sd_log_flush_wrapped;
struct list_head sd_ail1_list;
struct list_head sd_ail2_list;
- uint64_t sd_ail_sync_gen;
+ u64 sd_ail_sync_gen;
/* Replay stuff */
/* 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__ */
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