David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
Bob Peterson | 29d38cd | 2008-01-28 22:31:39 -0600 | [diff] [blame] | 3 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 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 |
Steven Whitehouse | e9fc2aa | 2006-09-01 11:05:15 -0400 | [diff] [blame] | 7 | * of the GNU General Public License version 2. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | #ifndef __INCORE_DOT_H__ |
| 11 | #define __INCORE_DOT_H__ |
| 12 | |
Steven Whitehouse | f2f7ba5 | 2006-09-05 10:39:21 -0400 | [diff] [blame] | 13 | #include <linux/fs.h> |
Benjamin Marzinski | c4f68a1 | 2007-08-23 13:19:05 -0500 | [diff] [blame] | 14 | #include <linux/workqueue.h> |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 15 | #include <linux/dlm.h> |
| 16 | #include <linux/buffer_head.h> |
Steven Whitehouse | f2f7ba5 | 2006-09-05 10:39:21 -0400 | [diff] [blame] | 17 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 18 | #define DIO_WAIT 0x00000010 |
| 19 | #define DIO_METADATA 0x00000020 |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 20 | #define DIO_ALL 0x00000100 |
| 21 | |
| 22 | struct gfs2_log_operations; |
| 23 | struct gfs2_log_element; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 24 | struct gfs2_holder; |
| 25 | struct gfs2_glock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 26 | struct gfs2_quota_data; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 27 | struct gfs2_trans; |
| 28 | struct gfs2_ail; |
| 29 | struct gfs2_jdesc; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 30 | struct gfs2_sbd; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 31 | struct lm_lockops; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 32 | |
| 33 | typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); |
| 34 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 35 | struct gfs2_log_header_host { |
| 36 | u64 lh_sequence; /* Sequence number of this transaction */ |
| 37 | u32 lh_flags; /* GFS2_LOG_HEAD_... */ |
| 38 | u32 lh_tail; /* Block number of log tail */ |
| 39 | u32 lh_blkno; |
| 40 | u32 lh_hash; |
| 41 | }; |
| 42 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 43 | /* |
| 44 | * Structure of operations that are associated with each |
| 45 | * type of element in the log. |
| 46 | */ |
| 47 | |
| 48 | struct gfs2_log_operations { |
| 49 | void (*lo_add) (struct gfs2_sbd *sdp, struct gfs2_log_element *le); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 50 | void (*lo_before_commit) (struct gfs2_sbd *sdp); |
| 51 | void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai); |
| 52 | void (*lo_before_scan) (struct gfs2_jdesc *jd, |
Al Viro | 5516762 | 2006-10-13 21:47:13 -0400 | [diff] [blame] | 53 | struct gfs2_log_header_host *head, int pass); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 54 | int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start, |
| 55 | struct gfs2_log_descriptor *ld, __be64 *ptr, |
| 56 | int pass); |
| 57 | void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass); |
Steven Whitehouse | b09e593 | 2006-04-07 11:17:32 -0400 | [diff] [blame] | 58 | const char *lo_name; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 59 | }; |
| 60 | |
| 61 | struct gfs2_log_element { |
| 62 | struct list_head le_list; |
Steven Whitehouse | b09e593 | 2006-04-07 11:17:32 -0400 | [diff] [blame] | 63 | const struct gfs2_log_operations *le_ops; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 64 | }; |
| 65 | |
| 66 | struct gfs2_bitmap { |
| 67 | struct buffer_head *bi_bh; |
| 68 | char *bi_clone; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 69 | u32 bi_offset; |
| 70 | u32 bi_start; |
| 71 | u32 bi_len; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 72 | }; |
| 73 | |
| 74 | struct gfs2_rgrpd { |
| 75 | struct list_head rd_list; /* Link with superblock */ |
| 76 | struct list_head rd_list_mru; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 77 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 78 | u64 rd_addr; /* grp block disk address */ |
| 79 | u64 rd_data0; /* first data location */ |
| 80 | u32 rd_length; /* length of rgrp header in fs blocks */ |
| 81 | u32 rd_data; /* num of data blocks in rgrp */ |
| 82 | u32 rd_bitbytes; /* number of bytes in data bitmaps */ |
Steven Whitehouse | cfc8b54 | 2008-11-04 10:25:13 +0000 | [diff] [blame] | 83 | u32 rd_free; |
Steven Whitehouse | 73f7494 | 2008-11-04 10:32:57 +0000 | [diff] [blame] | 84 | u32 rd_free_clone; |
| 85 | u32 rd_dinodes; |
Steven Whitehouse | d8b71f7 | 2008-11-04 10:19:03 +0000 | [diff] [blame] | 86 | u64 rd_igeneration; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 87 | struct gfs2_bitmap *rd_bits; |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 88 | struct mutex rd_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 89 | struct gfs2_log_element rd_le; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 90 | struct gfs2_sbd *rd_sbd; |
Steven Whitehouse | 73f7494 | 2008-11-04 10:32:57 +0000 | [diff] [blame] | 91 | unsigned int rd_bh_count; |
| 92 | u32 rd_last_alloc; |
Bob Peterson | 42d52e3 | 2008-01-28 18:38:07 -0600 | [diff] [blame] | 93 | unsigned char rd_flags; |
| 94 | #define GFS2_RDF_CHECK 0x01 /* Need to check for unlinked inodes */ |
| 95 | #define GFS2_RDF_NOALLOC 0x02 /* rg prohibits allocation */ |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 96 | #define GFS2_RDF_UPTODATE 0x04 /* rg is up to date */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 97 | }; |
| 98 | |
| 99 | enum gfs2_state_bits { |
| 100 | BH_Pinned = BH_PrivateStart, |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 101 | BH_Escaped = BH_PrivateStart + 1, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 102 | }; |
| 103 | |
| 104 | BUFFER_FNS(Pinned, pinned) |
| 105 | TAS_BUFFER_FNS(Pinned, pinned) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 106 | BUFFER_FNS(Escaped, escaped) |
| 107 | TAS_BUFFER_FNS(Escaped, escaped) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 108 | |
| 109 | struct gfs2_bufdata { |
| 110 | struct buffer_head *bd_bh; |
| 111 | struct gfs2_glock *bd_gl; |
| 112 | |
Steven Whitehouse | 82e8608 | 2007-09-02 15:39:43 +0100 | [diff] [blame] | 113 | union { |
| 114 | struct list_head list_tr; |
| 115 | u64 blkno; |
| 116 | } u; |
| 117 | #define bd_list_tr u.list_tr |
| 118 | #define bd_blkno u.blkno |
| 119 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 120 | struct gfs2_log_element bd_le; |
| 121 | |
| 122 | struct gfs2_ail *bd_ail; |
| 123 | struct list_head bd_ail_st_list; |
| 124 | struct list_head bd_ail_gl_list; |
| 125 | }; |
| 126 | |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 127 | /* |
| 128 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a |
| 129 | * prefix of lock_dlm_ gets awkward. |
| 130 | */ |
| 131 | |
| 132 | #define GDLM_STRNAME_BYTES 25 |
| 133 | #define GDLM_LVB_SIZE 32 |
| 134 | |
| 135 | enum { |
| 136 | DFL_BLOCK_LOCKS = 0, |
| 137 | }; |
| 138 | |
| 139 | struct lm_lockname { |
| 140 | u64 ln_number; |
| 141 | unsigned int ln_type; |
| 142 | }; |
| 143 | |
| 144 | #define lm_name_equal(name1, name2) \ |
| 145 | (((name1)->ln_number == (name2)->ln_number) && \ |
| 146 | ((name1)->ln_type == (name2)->ln_type)) |
| 147 | |
| 148 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 149 | struct gfs2_glock_operations { |
Steven Whitehouse | b5d32be | 2007-01-22 12:15:34 -0500 | [diff] [blame] | 150 | void (*go_xmote_th) (struct gfs2_glock *gl); |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 151 | int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); |
Steven Whitehouse | 1a14d3a | 2006-11-20 10:37:45 -0500 | [diff] [blame] | 152 | void (*go_inval) (struct gfs2_glock *gl, int flags); |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 153 | int (*go_demote_ok) (const struct gfs2_glock *gl); |
Steven Whitehouse | 1a14d3a | 2006-11-20 10:37:45 -0500 | [diff] [blame] | 154 | int (*go_lock) (struct gfs2_holder *gh); |
| 155 | void (*go_unlock) (struct gfs2_holder *gh); |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 156 | int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 157 | const int go_type; |
Benjamin Marzinski | c4f68a1 | 2007-08-23 13:19:05 -0500 | [diff] [blame] | 158 | const unsigned long go_min_hold_time; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 159 | }; |
| 160 | |
| 161 | enum { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 162 | /* States */ |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 163 | HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 164 | HIF_FIRST = 7, |
Steven Whitehouse | fee852e | 2007-01-17 15:33:23 +0000 | [diff] [blame] | 165 | HIF_WAIT = 10, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 166 | }; |
| 167 | |
| 168 | struct gfs2_holder { |
| 169 | struct list_head gh_list; |
| 170 | |
| 171 | struct gfs2_glock *gh_gl; |
Pavel Emelyanov | b1e058d | 2008-02-07 00:13:19 -0800 | [diff] [blame] | 172 | struct pid *gh_owner_pid; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 173 | unsigned int gh_state; |
Steven Whitehouse | fe1bded | 2006-04-18 10:09:15 -0400 | [diff] [blame] | 174 | unsigned gh_flags; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 175 | |
| 176 | int gh_error; |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 177 | unsigned long gh_iflags; /* HIF_... */ |
Steven Whitehouse | d0dc80d | 2006-03-29 14:36:49 -0500 | [diff] [blame] | 178 | unsigned long gh_ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 179 | }; |
| 180 | |
| 181 | enum { |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 182 | GLF_LOCK = 1, |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 183 | GLF_DEMOTE = 3, |
| 184 | GLF_PENDING_DEMOTE = 4, |
| 185 | GLF_DEMOTE_IN_PROGRESS = 5, |
| 186 | GLF_DIRTY = 6, |
| 187 | GLF_LFLUSH = 7, |
| 188 | GLF_INVALIDATE_IN_PROGRESS = 8, |
| 189 | GLF_REPLY_PENDING = 9, |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 190 | GLF_INITIAL = 10, |
| 191 | GLF_FROZEN = 11, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 192 | }; |
| 193 | |
| 194 | struct gfs2_glock { |
Steven Whitehouse | b639789 | 2006-09-12 10:10:01 -0400 | [diff] [blame] | 195 | struct hlist_node gl_list; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 196 | unsigned long gl_flags; /* GLF_... */ |
| 197 | struct lm_lockname gl_name; |
Steven Whitehouse | 16feb9f | 2006-09-13 10:43:37 -0400 | [diff] [blame] | 198 | atomic_t gl_ref; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 199 | |
| 200 | spinlock_t gl_spin; |
| 201 | |
| 202 | unsigned int gl_state; |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 203 | unsigned int gl_target; |
| 204 | unsigned int gl_reply; |
Steven Whitehouse | 37b2fa6 | 2006-09-08 13:35:56 -0400 | [diff] [blame] | 205 | unsigned int gl_hash; |
Benjamin Marzinski | 02ffad08 | 2009-03-06 10:03:20 -0600 | [diff] [blame] | 206 | unsigned int gl_req; |
Steven Whitehouse | 3b8249f | 2007-03-16 09:40:31 +0000 | [diff] [blame] | 207 | unsigned int gl_demote_state; /* state requested by remote node */ |
| 208 | unsigned long gl_demote_time; /* time of first demote request */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 209 | struct list_head gl_holders; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 210 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 211 | const struct gfs2_glock_operations *gl_ops; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 212 | char gl_strname[GDLM_STRNAME_BYTES]; |
| 213 | struct dlm_lksb gl_lksb; |
| 214 | char gl_lvb[32]; |
Benjamin Marzinski | c4f68a1 | 2007-08-23 13:19:05 -0500 | [diff] [blame] | 215 | unsigned long gl_tchange; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 216 | void *gl_object; |
| 217 | |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 218 | struct list_head gl_lru; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 219 | |
| 220 | struct gfs2_sbd *gl_sbd; |
| 221 | |
| 222 | struct inode *gl_aspace; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 223 | struct list_head gl_ail_list; |
| 224 | atomic_t gl_ail_count; |
Benjamin Marzinski | c4f68a1 | 2007-08-23 13:19:05 -0500 | [diff] [blame] | 225 | struct delayed_work gl_work; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 226 | }; |
| 227 | |
Steven Whitehouse | da755fd | 2008-01-30 15:34:04 +0000 | [diff] [blame] | 228 | #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ |
| 229 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 230 | struct gfs2_alloc { |
| 231 | /* Quota stuff */ |
| 232 | |
Steven Whitehouse | e9fc2aa | 2006-09-01 11:05:15 -0400 | [diff] [blame] | 233 | struct gfs2_quota_data *al_qd[2*MAXQUOTAS]; |
| 234 | struct gfs2_holder al_qd_ghs[2*MAXQUOTAS]; |
Steven Whitehouse | 6b61b07 | 2006-06-06 14:49:39 -0400 | [diff] [blame] | 235 | unsigned int al_qd_num; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 236 | |
Steven Whitehouse | 6b61b07 | 2006-06-06 14:49:39 -0400 | [diff] [blame] | 237 | u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */ |
| 238 | u32 al_alloced; /* Filled in by gfs2_alloc_*() */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 239 | |
| 240 | /* Filled in by gfs2_inplace_reserve() */ |
| 241 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 242 | unsigned int al_line; |
Steven Whitehouse | 6b61b07 | 2006-06-06 14:49:39 -0400 | [diff] [blame] | 243 | char *al_file; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 244 | struct gfs2_holder al_ri_gh; |
| 245 | struct gfs2_holder al_rgd_gh; |
| 246 | struct gfs2_rgrpd *al_rgd; |
| 247 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 248 | }; |
| 249 | |
| 250 | enum { |
Steven Whitehouse | bfded27 | 2006-11-01 16:05:38 -0500 | [diff] [blame] | 251 | GIF_INVALID = 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 252 | GIF_QD_LOCKED = 1, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 253 | GIF_SW_PAGED = 3, |
Bob Peterson | 091806ed | 2008-04-29 12:35:48 -0500 | [diff] [blame] | 254 | GIF_USER = 4, /* user inode, not metadata addr space */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 255 | }; |
| 256 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 257 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 258 | struct gfs2_inode { |
Steven Whitehouse | 320dd10 | 2006-05-18 16:25:27 -0400 | [diff] [blame] | 259 | struct inode i_inode; |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 260 | u64 i_no_addr; |
| 261 | u64 i_no_formal_ino; |
Steven Whitehouse | bcf0b5b | 2008-11-03 13:39:46 +0000 | [diff] [blame] | 262 | u64 i_generation; |
Steven Whitehouse | 3767ac2 | 2008-11-03 14:28:42 +0000 | [diff] [blame] | 263 | u64 i_eattr; |
Steven Whitehouse | c9e9888 | 2008-11-04 09:47:33 +0000 | [diff] [blame] | 264 | loff_t i_disksize; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 265 | unsigned long i_flags; /* GIF_... */ |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 266 | struct gfs2_glock *i_gl; /* Move into i_gh? */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 267 | struct gfs2_holder i_iopen_gh; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 268 | struct gfs2_holder i_gh; /* for prepare/commit_write only */ |
Steven Whitehouse | 6dbd822 | 2008-01-10 15:18:55 +0000 | [diff] [blame] | 269 | struct gfs2_alloc *i_alloc; |
Steven Whitehouse | ce276b0 | 2008-02-06 09:25:45 +0000 | [diff] [blame] | 270 | u64 i_goal; /* goal block for allocations */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 271 | struct rw_semaphore i_rw_mutex; |
Steven Whitehouse | 813e0c4 | 2008-11-18 13:38:48 +0000 | [diff] [blame] | 272 | struct list_head i_trunc_list; |
Steven Whitehouse | ad6203f | 2008-11-03 13:59:19 +0000 | [diff] [blame] | 273 | u32 i_entries; |
Steven Whitehouse | 383f01f | 2008-11-04 10:05:22 +0000 | [diff] [blame] | 274 | u32 i_diskflags; |
Steven Whitehouse | ecc30c7 | 2008-01-28 10:37:35 +0000 | [diff] [blame] | 275 | u8 i_height; |
Steven Whitehouse | 9a00450 | 2008-02-01 09:23:44 +0000 | [diff] [blame] | 276 | u8 i_depth; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 277 | }; |
| 278 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 279 | /* |
| 280 | * Since i_inode is the first element of struct gfs2_inode, |
| 281 | * this is effectively a cast. |
| 282 | */ |
Steven Whitehouse | 320dd10 | 2006-05-18 16:25:27 -0400 | [diff] [blame] | 283 | static inline struct gfs2_inode *GFS2_I(struct inode *inode) |
| 284 | { |
| 285 | return container_of(inode, struct gfs2_inode, i_inode); |
| 286 | } |
| 287 | |
Steven Whitehouse | bf36a71 | 2007-10-17 08:35:19 +0100 | [diff] [blame] | 288 | static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 289 | { |
| 290 | return inode->i_sb->s_fs_info; |
| 291 | } |
| 292 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 293 | struct gfs2_file { |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 294 | struct mutex f_fl_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 295 | struct gfs2_holder f_fl_gh; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 296 | }; |
| 297 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 298 | struct gfs2_revoke_replay { |
| 299 | struct list_head rr_list; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 300 | u64 rr_blkno; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 301 | unsigned int rr_where; |
| 302 | }; |
| 303 | |
| 304 | enum { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 305 | QDF_USER = 0, |
| 306 | QDF_CHANGE = 1, |
| 307 | QDF_LOCKED = 2, |
| 308 | }; |
| 309 | |
| 310 | struct gfs2_quota_data { |
| 311 | struct list_head qd_list; |
Abhijith Das | 0a7ab79 | 2009-01-07 16:03:37 -0600 | [diff] [blame] | 312 | struct list_head qd_reclaim; |
| 313 | |
| 314 | atomic_t qd_count; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 315 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 316 | u32 qd_id; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 317 | unsigned long qd_flags; /* QDF_... */ |
| 318 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 319 | s64 qd_change; |
| 320 | s64 qd_change_sync; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 321 | |
| 322 | unsigned int qd_slot; |
| 323 | unsigned int qd_slot_count; |
| 324 | |
| 325 | struct buffer_head *qd_bh; |
| 326 | struct gfs2_quota_change *qd_bh_qc; |
| 327 | unsigned int qd_bh_count; |
| 328 | |
| 329 | struct gfs2_glock *qd_gl; |
| 330 | struct gfs2_quota_lvb qd_qb; |
| 331 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 332 | u64 qd_sync_gen; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 333 | unsigned long qd_last_warn; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 334 | }; |
| 335 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 336 | struct gfs2_trans { |
Steven Whitehouse | d0dc80d | 2006-03-29 14:36:49 -0500 | [diff] [blame] | 337 | unsigned long tr_ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 338 | |
| 339 | unsigned int tr_blocks; |
| 340 | unsigned int tr_revokes; |
| 341 | unsigned int tr_reserved; |
| 342 | |
Steven Whitehouse | e317ffc | 2006-03-01 11:39:37 -0500 | [diff] [blame] | 343 | struct gfs2_holder tr_t_gh; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 344 | |
| 345 | int tr_touched; |
| 346 | |
| 347 | unsigned int tr_num_buf; |
| 348 | unsigned int tr_num_buf_new; |
Robert Peterson | 2332c44 | 2007-06-18 14:50:20 -0500 | [diff] [blame] | 349 | unsigned int tr_num_databuf_new; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 350 | unsigned int tr_num_buf_rm; |
Robert Peterson | 2332c44 | 2007-06-18 14:50:20 -0500 | [diff] [blame] | 351 | unsigned int tr_num_databuf_rm; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 352 | struct list_head tr_list_buf; |
| 353 | |
| 354 | unsigned int tr_num_revoke; |
| 355 | unsigned int tr_num_revoke_rm; |
| 356 | }; |
| 357 | |
| 358 | struct gfs2_ail { |
| 359 | struct list_head ai_list; |
| 360 | |
| 361 | unsigned int ai_first; |
| 362 | struct list_head ai_ail1_list; |
| 363 | struct list_head ai_ail2_list; |
| 364 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 365 | u64 ai_sync_gen; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 366 | }; |
| 367 | |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 368 | struct gfs2_journal_extent { |
| 369 | struct list_head extent_list; |
| 370 | |
| 371 | unsigned int lblock; /* First logical block */ |
| 372 | u64 dblock; /* First disk block */ |
| 373 | u64 blocks; |
| 374 | }; |
| 375 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 376 | struct gfs2_jdesc { |
| 377 | struct list_head jd_list; |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 378 | struct list_head extent_list; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 379 | |
Steven Whitehouse | 7359a19 | 2006-02-13 12:27:43 +0000 | [diff] [blame] | 380 | struct inode *jd_inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 381 | unsigned int jd_jid; |
| 382 | int jd_dirty; |
| 383 | |
| 384 | unsigned int jd_blocks; |
| 385 | }; |
| 386 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 387 | struct gfs2_statfs_change_host { |
| 388 | s64 sc_total; |
| 389 | s64 sc_free; |
| 390 | s64 sc_dinodes; |
| 391 | }; |
| 392 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 393 | #define GFS2_GLOCKD_DEFAULT 1 |
| 394 | #define GFS2_GLOCKD_MAX 16 |
| 395 | |
| 396 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF |
| 397 | #define GFS2_QUOTA_OFF 0 |
| 398 | #define GFS2_QUOTA_ACCOUNT 1 |
| 399 | #define GFS2_QUOTA_ON 2 |
| 400 | |
| 401 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED |
| 402 | #define GFS2_DATA_WRITEBACK 1 |
| 403 | #define GFS2_DATA_ORDERED 2 |
| 404 | |
| 405 | struct gfs2_args { |
Steven Whitehouse | 37ec89e | 2008-09-18 13:49:32 +0100 | [diff] [blame] | 406 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ |
| 407 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ |
| 408 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ |
| 409 | unsigned int ar_spectator:1; /* Don't get a journal */ |
| 410 | unsigned int ar_ignore_local_fs:1; /* Ignore optimisations */ |
| 411 | unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ |
| 412 | unsigned int ar_localcaching:1; /* Local caching */ |
| 413 | unsigned int ar_debug:1; /* Oops on errors */ |
| 414 | unsigned int ar_upgrade:1; /* Upgrade ondisk format */ |
| 415 | unsigned int ar_posix_acl:1; /* Enable posix acls */ |
| 416 | unsigned int ar_quota:2; /* off/account/on */ |
| 417 | unsigned int ar_suiddir:1; /* suiddir support */ |
| 418 | unsigned int ar_data:2; /* ordered/writeback */ |
| 419 | unsigned int ar_meta:1; /* mount metafs */ |
Steven Whitehouse | f15ab56 | 2009-02-09 09:25:01 +0000 | [diff] [blame] | 420 | unsigned int ar_discard:1; /* discard requests */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 421 | }; |
| 422 | |
| 423 | struct gfs2_tune { |
| 424 | spinlock_t gt_spin; |
| 425 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 426 | unsigned int gt_incore_log_blocks; |
| 427 | unsigned int gt_log_flush_secs; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 428 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 429 | unsigned int gt_recoverd_secs; |
| 430 | unsigned int gt_logd_secs; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 431 | |
| 432 | unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */ |
| 433 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ |
| 434 | unsigned int gt_quota_scale_num; /* Numerator */ |
| 435 | unsigned int gt_quota_scale_den; /* Denominator */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 436 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 437 | unsigned int gt_new_files_jdata; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 438 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 439 | unsigned int gt_stall_secs; /* Detects trouble! */ |
| 440 | unsigned int gt_complain_secs; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 441 | unsigned int gt_statfs_quantum; |
| 442 | unsigned int gt_statfs_slow; |
| 443 | }; |
| 444 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 445 | enum { |
| 446 | SDF_JOURNAL_CHECKED = 0, |
| 447 | SDF_JOURNAL_LIVE = 1, |
| 448 | SDF_SHUTDOWN = 2, |
Steven Whitehouse | 254db57 | 2008-09-26 10:23:22 +0100 | [diff] [blame] | 449 | SDF_NOBARRIERS = 3, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 450 | }; |
| 451 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 452 | #define GFS2_FSNAME_LEN 256 |
| 453 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 454 | struct gfs2_inum_host { |
| 455 | u64 no_formal_ino; |
| 456 | u64 no_addr; |
| 457 | }; |
| 458 | |
| 459 | struct gfs2_sb_host { |
| 460 | u32 sb_magic; |
| 461 | u32 sb_type; |
| 462 | u32 sb_format; |
| 463 | |
| 464 | u32 sb_fs_format; |
| 465 | u32 sb_multihost_format; |
| 466 | u32 sb_bsize; |
| 467 | u32 sb_bsize_shift; |
| 468 | |
| 469 | struct gfs2_inum_host sb_master_dir; |
| 470 | struct gfs2_inum_host sb_root_dir; |
| 471 | |
| 472 | char sb_lockproto[GFS2_LOCKNAME_LEN]; |
| 473 | char sb_locktable[GFS2_LOCKNAME_LEN]; |
Steven Whitehouse | 02e3cc7 | 2009-02-10 13:48:30 +0000 | [diff] [blame] | 474 | u8 sb_uuid[16]; |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 475 | }; |
| 476 | |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 477 | /* |
| 478 | * lm_mount() return values |
| 479 | * |
| 480 | * ls_jid - the journal ID this node should use |
| 481 | * ls_first - this node is the first to mount the file system |
| 482 | * ls_lockspace - lock module's context for this file system |
| 483 | * ls_ops - lock module's functions |
| 484 | */ |
| 485 | |
| 486 | struct lm_lockstruct { |
| 487 | u32 ls_id; |
| 488 | unsigned int ls_jid; |
| 489 | unsigned int ls_first; |
| 490 | unsigned int ls_first_done; |
| 491 | unsigned int ls_nodir; |
| 492 | const struct lm_lockops *ls_ops; |
| 493 | unsigned long ls_flags; |
| 494 | dlm_lockspace_t *ls_dlm; |
| 495 | |
| 496 | int ls_recover_jid; |
| 497 | int ls_recover_jid_done; |
| 498 | int ls_recover_jid_status; |
| 499 | }; |
| 500 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 501 | struct gfs2_sbd { |
| 502 | struct super_block *sd_vfs; |
| 503 | struct kobject sd_kobj; |
| 504 | unsigned long sd_flags; /* SDF_... */ |
Al Viro | f50dfaf | 2006-10-13 20:45:02 -0400 | [diff] [blame] | 505 | struct gfs2_sb_host sd_sb; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 506 | |
| 507 | /* Constants computed on mount */ |
| 508 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 509 | u32 sd_fsb2bb; |
| 510 | u32 sd_fsb2bb_shift; |
| 511 | u32 sd_diptrs; /* Number of pointers in a dinode */ |
| 512 | u32 sd_inptrs; /* Number of pointers in a indirect block */ |
| 513 | u32 sd_jbsize; /* Size of a journaled data block */ |
| 514 | u32 sd_hash_bsize; /* sizeof(exhash block) */ |
| 515 | u32 sd_hash_bsize_shift; |
| 516 | u32 sd_hash_ptrs; /* Number of pointers in a hash block */ |
| 517 | u32 sd_qc_per_block; |
| 518 | u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ |
| 519 | u32 sd_max_height; /* Max height of a file's metadata tree */ |
Steven Whitehouse | ecc30c7 | 2008-01-28 10:37:35 +0000 | [diff] [blame] | 520 | u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 521 | u32 sd_max_jheight; /* Max height of journaled file's meta tree */ |
Steven Whitehouse | ecc30c7 | 2008-01-28 10:37:35 +0000 | [diff] [blame] | 522 | u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 523 | |
| 524 | struct gfs2_args sd_args; /* Mount arguments */ |
| 525 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ |
| 526 | |
| 527 | /* Lock Stuff */ |
| 528 | |
| 529 | struct lm_lockstruct sd_lockstruct; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 530 | struct gfs2_holder sd_live_gh; |
| 531 | struct gfs2_glock *sd_rename_gl; |
| 532 | struct gfs2_glock *sd_trans_gl; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 533 | |
| 534 | /* Inode Stuff */ |
| 535 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 536 | struct dentry *sd_master_dir; |
| 537 | struct dentry *sd_root_dir; |
| 538 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 539 | struct inode *sd_jindex; |
| 540 | struct inode *sd_inum_inode; |
| 541 | struct inode *sd_statfs_inode; |
| 542 | struct inode *sd_ir_inode; |
| 543 | struct inode *sd_sc_inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 544 | struct inode *sd_qc_inode; |
| 545 | struct inode *sd_rindex; |
| 546 | struct inode *sd_quota_inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 547 | |
| 548 | /* Inum stuff */ |
| 549 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 550 | struct mutex sd_inum_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 551 | |
| 552 | /* StatFS stuff */ |
| 553 | |
| 554 | spinlock_t sd_statfs_spin; |
Al Viro | bd209cc | 2006-10-13 23:43:19 -0400 | [diff] [blame] | 555 | struct gfs2_statfs_change_host sd_statfs_master; |
| 556 | struct gfs2_statfs_change_host sd_statfs_local; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 557 | |
| 558 | /* Resource group stuff */ |
| 559 | |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 560 | int sd_rindex_uptodate; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 561 | spinlock_t sd_rindex_spin; |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 562 | struct mutex sd_rindex_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 563 | struct list_head sd_rindex_list; |
| 564 | struct list_head sd_rindex_mru_list; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 565 | struct gfs2_rgrpd *sd_rindex_forward; |
| 566 | unsigned int sd_rgrps; |
| 567 | |
| 568 | /* Journal index stuff */ |
| 569 | |
| 570 | struct list_head sd_jindex_list; |
| 571 | spinlock_t sd_jindex_spin; |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 572 | struct mutex sd_jindex_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 573 | unsigned int sd_journals; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 574 | |
| 575 | struct gfs2_jdesc *sd_jdesc; |
| 576 | struct gfs2_holder sd_journal_gh; |
| 577 | struct gfs2_holder sd_jinode_gh; |
| 578 | |
| 579 | struct gfs2_holder sd_ir_gh; |
| 580 | struct gfs2_holder sd_sc_gh; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 581 | struct gfs2_holder sd_qc_gh; |
| 582 | |
| 583 | /* Daemon stuff */ |
| 584 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 585 | struct task_struct *sd_recoverd_process; |
| 586 | struct task_struct *sd_logd_process; |
| 587 | struct task_struct *sd_quotad_process; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 588 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 589 | /* Quota stuff */ |
| 590 | |
| 591 | struct list_head sd_quota_list; |
| 592 | atomic_t sd_quota_count; |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 593 | struct mutex sd_quota_mutex; |
Steven Whitehouse | 37b2c83 | 2008-11-17 14:25:37 +0000 | [diff] [blame] | 594 | wait_queue_head_t sd_quota_wait; |
Steven Whitehouse | 813e0c4 | 2008-11-18 13:38:48 +0000 | [diff] [blame] | 595 | struct list_head sd_trunc_list; |
| 596 | spinlock_t sd_trunc_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 597 | |
| 598 | unsigned int sd_quota_slots; |
| 599 | unsigned int sd_quota_chunks; |
| 600 | unsigned char **sd_quota_bitmap; |
| 601 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 602 | u64 sd_quota_sync_gen; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 603 | |
| 604 | /* Log stuff */ |
| 605 | |
| 606 | spinlock_t sd_log_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 607 | |
| 608 | unsigned int sd_log_blks_reserved; |
| 609 | unsigned int sd_log_commited_buf; |
Robert Peterson | 2332c44 | 2007-06-18 14:50:20 -0500 | [diff] [blame] | 610 | unsigned int sd_log_commited_databuf; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 611 | unsigned int sd_log_commited_revoke; |
| 612 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 613 | unsigned int sd_log_num_buf; |
| 614 | unsigned int sd_log_num_revoke; |
| 615 | unsigned int sd_log_num_rg; |
| 616 | unsigned int sd_log_num_databuf; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 617 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 618 | struct list_head sd_log_le_buf; |
| 619 | struct list_head sd_log_le_revoke; |
| 620 | struct list_head sd_log_le_rg; |
| 621 | struct list_head sd_log_le_databuf; |
Steven Whitehouse | d7b616e | 2007-09-02 10:48:13 +0100 | [diff] [blame] | 622 | struct list_head sd_log_le_ordered; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 623 | |
Steven Whitehouse | fd041f0 | 2007-11-08 14:55:03 +0000 | [diff] [blame] | 624 | atomic_t sd_log_blks_free; |
Steven Whitehouse | 71b86f5 | 2006-03-28 14:14:04 -0500 | [diff] [blame] | 625 | struct mutex sd_log_reserve_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 626 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 627 | u64 sd_log_sequence; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 628 | unsigned int sd_log_head; |
| 629 | unsigned int sd_log_tail; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 630 | int sd_log_idle; |
| 631 | |
| 632 | unsigned long sd_log_flush_time; |
Steven Whitehouse | 484adff | 2006-03-29 09:12:12 -0500 | [diff] [blame] | 633 | struct rw_semaphore sd_log_flush_lock; |
Steven Whitehouse | 16615be | 2007-09-17 10:59:52 +0100 | [diff] [blame] | 634 | atomic_t sd_log_in_flight; |
| 635 | wait_queue_head_t sd_log_flush_wait; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 636 | |
| 637 | unsigned int sd_log_flush_head; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 638 | u64 sd_log_flush_wrapped; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 639 | |
| 640 | struct list_head sd_ail1_list; |
| 641 | struct list_head sd_ail2_list; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 642 | u64 sd_ail_sync_gen; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 643 | |
| 644 | /* Replay stuff */ |
| 645 | |
| 646 | struct list_head sd_revoke_list; |
| 647 | unsigned int sd_replay_tail; |
| 648 | |
| 649 | unsigned int sd_found_blocks; |
| 650 | unsigned int sd_found_revokes; |
| 651 | unsigned int sd_replayed_blocks; |
| 652 | |
| 653 | /* For quiescing the filesystem */ |
| 654 | |
| 655 | struct gfs2_holder sd_freeze_gh; |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 656 | struct mutex sd_freeze_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 657 | unsigned int sd_freeze_count; |
| 658 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 659 | char sd_fsname[GFS2_FSNAME_LEN]; |
| 660 | char sd_table_name[GFS2_FSNAME_LEN]; |
| 661 | char sd_proto_name[GFS2_FSNAME_LEN]; |
| 662 | |
| 663 | /* Debugging crud */ |
| 664 | |
| 665 | unsigned long sd_last_warning; |
Robert Peterson | 5f88209 | 2007-04-18 11:41:11 -0500 | [diff] [blame] | 666 | struct dentry *debugfs_dir; /* debugfs directory */ |
| 667 | struct dentry *debugfs_dentry_glocks; /* for debugfs */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 668 | }; |
| 669 | |
| 670 | #endif /* __INCORE_DOT_H__ */ |
| 671 | |