/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 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
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_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_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;
+ u32 rd_last_alloc;
struct gfs2_sbd *rd_sbd;
- unsigned long rd_flags;
-#define GFS2_RDF_CHECK 0x0001 /* Need to check for unlinked inodes */
+ 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 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);
+ int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh);
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);
+ int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl);
const int go_type;
const unsigned long go_min_hold_time;
};
enum {
/* States */
- HIF_HOLDER = 6,
+ HIF_HOLDER = 6, /* Set for gh that "holds" the glock */
HIF_FIRST = 7,
- HIF_ABORTED = 9,
HIF_WAIT = 10,
};
struct list_head gh_list;
struct gfs2_glock *gh_gl;
- pid_t gh_owner_pid;
+ struct pid *gh_owner_pid;
unsigned int gh_state;
unsigned gh_flags;
int gh_error;
- unsigned long gh_iflags;
+ unsigned long gh_iflags; /* HIF_... */
unsigned long gh_ip;
};
enum {
- GLF_LOCK = 1,
- GLF_STICKY = 2,
- GLF_DEMOTE = 3,
- GLF_PENDING_DEMOTE = 4,
- GLF_DIRTY = 5,
- GLF_DEMOTE_IN_PROGRESS = 6,
- GLF_LFLUSH = 7,
+ GLF_LOCK = 1,
+ GLF_STICKY = 2,
+ GLF_DEMOTE = 3,
+ GLF_PENDING_DEMOTE = 4,
+ GLF_DEMOTE_IN_PROGRESS = 5,
+ GLF_DIRTY = 6,
+ GLF_LFLUSH = 7,
+ GLF_INVALIDATE_IN_PROGRESS = 8,
+ GLF_REPLY_PENDING = 9,
};
struct gfs2_glock {
spinlock_t gl_spin;
unsigned int gl_state;
+ unsigned int gl_target;
+ unsigned int gl_reply;
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 */
- int gl_waiters2; /* GIF_DEMOTE */
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;
unsigned long gl_tchange;
void *gl_object;
struct delayed_work gl_work;
};
+#define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */
+
struct gfs2_alloc {
/* Quota stuff */
GIF_INVALID = 0,
GIF_QD_LOCKED = 1,
GIF_SW_PAGED = 3,
+ GIF_USER = 4, /* user inode, not metadata addr space */
};
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_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 gfs2_alloc *i_alloc;
+ u64 i_goal; /* goal block for allocations */
struct rw_semaphore i_rw_mutex;
+ u8 i_height;
+ u8 i_depth;
};
/*
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_stall_secs; /* Detects trouble! */
unsigned int gt_complain_secs;
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];
+ 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];
+ u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1];
struct gfs2_args sd_args; /* Mount arguments */
struct gfs2_tune sd_tune; /* Filesystem tuning structure */
/* 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;
+ int sd_rindex_uptodate;
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;
/* 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];
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff