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> |
Alexey Dobriyan | 57cc721 | 2011-01-10 08:18:25 +0200 | [diff] [blame] | 14 | #include <linux/kobject.h> |
Benjamin Marzinski | c4f68a1 | 2007-08-23 13:19:05 -0500 | [diff] [blame] | 15 | #include <linux/workqueue.h> |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 16 | #include <linux/dlm.h> |
| 17 | #include <linux/buffer_head.h> |
Steven Whitehouse | bc015cb | 2011-01-19 09:30:01 +0000 | [diff] [blame] | 18 | #include <linux/rcupdate.h> |
| 19 | #include <linux/rculist_bl.h> |
Steven Whitehouse | 3942ae5 | 2011-07-11 08:53:30 +0100 | [diff] [blame] | 20 | #include <linux/completion.h> |
Bob Peterson | 7c9ca62 | 2011-08-31 09:53:19 +0100 | [diff] [blame] | 21 | #include <linux/rbtree.h> |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 22 | #include <linux/ktime.h> |
| 23 | #include <linux/percpu.h> |
Steven Whitehouse | e66cf16 | 2013-10-15 15:18:08 +0100 | [diff] [blame] | 24 | #include <linux/lockref.h> |
Bob Peterson | 88ffbf3 | 2015-03-16 11:02:46 -0500 | [diff] [blame] | 25 | #include <linux/rhashtable.h> |
Steven Whitehouse | f2f7ba5 | 2006-09-05 10:39:21 -0400 | [diff] [blame] | 26 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 27 | #define DIO_WAIT 0x00000010 |
| 28 | #define DIO_METADATA 0x00000020 |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 29 | |
| 30 | struct gfs2_log_operations; |
Bob Peterson | c0752aa | 2012-05-01 12:00:34 -0400 | [diff] [blame] | 31 | struct gfs2_bufdata; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 32 | struct gfs2_holder; |
| 33 | struct gfs2_glock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 34 | struct gfs2_quota_data; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 35 | struct gfs2_trans; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 36 | struct gfs2_jdesc; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 37 | struct gfs2_sbd; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 38 | struct lm_lockops; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 39 | |
| 40 | typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret); |
| 41 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 42 | struct gfs2_log_header_host { |
| 43 | u64 lh_sequence; /* Sequence number of this transaction */ |
| 44 | u32 lh_flags; /* GFS2_LOG_HEAD_... */ |
| 45 | u32 lh_tail; /* Block number of log tail */ |
| 46 | u32 lh_blkno; |
| 47 | u32 lh_hash; |
| 48 | }; |
| 49 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 50 | /* |
| 51 | * Structure of operations that are associated with each |
| 52 | * type of element in the log. |
| 53 | */ |
| 54 | |
| 55 | struct gfs2_log_operations { |
Steven Whitehouse | d69a3c6 | 2014-02-21 15:22:35 +0000 | [diff] [blame] | 56 | void (*lo_before_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr); |
Benjamin Marzinski | 16ca941 | 2013-04-05 20:31:46 -0500 | [diff] [blame] | 57 | void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 58 | void (*lo_before_scan) (struct gfs2_jdesc *jd, |
Al Viro | 5516762 | 2006-10-13 21:47:13 -0400 | [diff] [blame] | 59 | struct gfs2_log_header_host *head, int pass); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 60 | int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start, |
| 61 | struct gfs2_log_descriptor *ld, __be64 *ptr, |
| 62 | int pass); |
| 63 | void (*lo_after_scan) (struct gfs2_jdesc *jd, int error, int pass); |
Steven Whitehouse | b09e593 | 2006-04-07 11:17:32 -0400 | [diff] [blame] | 64 | const char *lo_name; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 65 | }; |
| 66 | |
Steven Whitehouse | 60a0b8f | 2009-05-21 12:23:12 +0100 | [diff] [blame] | 67 | #define GBF_FULL 1 |
| 68 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 69 | struct gfs2_bitmap { |
| 70 | struct buffer_head *bi_bh; |
| 71 | char *bi_clone; |
Steven Whitehouse | 60a0b8f | 2009-05-21 12:23:12 +0100 | [diff] [blame] | 72 | unsigned long bi_flags; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 73 | u32 bi_offset; |
| 74 | u32 bi_start; |
| 75 | u32 bi_len; |
Bob Peterson | 7e230f5 | 2013-09-11 13:44:02 -0500 | [diff] [blame] | 76 | u32 bi_blocks; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 77 | }; |
| 78 | |
| 79 | struct gfs2_rgrpd { |
Bob Peterson | 7c9ca62 | 2011-08-31 09:53:19 +0100 | [diff] [blame] | 80 | struct rb_node rd_node; /* Link with superblock */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 81 | struct gfs2_glock *rd_gl; /* Glock for this rgrp */ |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 82 | u64 rd_addr; /* grp block disk address */ |
| 83 | u64 rd_data0; /* first data location */ |
| 84 | u32 rd_length; /* length of rgrp header in fs blocks */ |
| 85 | u32 rd_data; /* num of data blocks in rgrp */ |
| 86 | u32 rd_bitbytes; /* number of bytes in data bitmaps */ |
Steven Whitehouse | cfc8b54 | 2008-11-04 10:25:13 +0000 | [diff] [blame] | 87 | u32 rd_free; |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 88 | u32 rd_reserved; /* number of blocks reserved */ |
Steven Whitehouse | 73f7494 | 2008-11-04 10:32:57 +0000 | [diff] [blame] | 89 | u32 rd_free_clone; |
| 90 | u32 rd_dinodes; |
Steven Whitehouse | d8b71f7 | 2008-11-04 10:19:03 +0000 | [diff] [blame] | 91 | u64 rd_igeneration; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 92 | struct gfs2_bitmap *rd_bits; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 93 | struct gfs2_sbd *rd_sbd; |
Benjamin Marzinski | 90306c4 | 2012-05-29 23:01:09 -0500 | [diff] [blame] | 94 | struct gfs2_rgrp_lvb *rd_rgl; |
Steven Whitehouse | 73f7494 | 2008-11-04 10:32:57 +0000 | [diff] [blame] | 95 | u32 rd_last_alloc; |
Steven Whitehouse | 1ce97e5 | 2009-05-21 15:18:19 +0100 | [diff] [blame] | 96 | u32 rd_flags; |
Bob Peterson | 5ea5050 | 2013-11-25 11:16:25 +0000 | [diff] [blame] | 97 | u32 rd_extfail_pt; /* extent failure point */ |
Steven Whitehouse | 0901097 | 2009-05-20 10:48:47 +0100 | [diff] [blame] | 98 | #define GFS2_RDF_CHECK 0x10000000 /* check for unlinked inodes */ |
| 99 | #define GFS2_RDF_UPTODATE 0x20000000 /* rg is up to date */ |
| 100 | #define GFS2_RDF_ERROR 0x40000000 /* error in rg */ |
Bob Peterson | 0e27c18 | 2014-10-29 08:02:28 -0500 | [diff] [blame] | 101 | #define GFS2_RDF_PREFERRED 0x80000000 /* This rgrp is preferred */ |
Steven Whitehouse | 0901097 | 2009-05-20 10:48:47 +0100 | [diff] [blame] | 102 | #define GFS2_RDF_MASK 0xf0000000 /* mask for internal flags */ |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 103 | spinlock_t rd_rsspin; /* protects reservation related vars */ |
| 104 | struct rb_root rd_rstree; /* multi-block reservation tree */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 105 | }; |
| 106 | |
Steven Whitehouse | 4a993fb | 2012-07-31 15:21:20 +0100 | [diff] [blame] | 107 | struct gfs2_rbm { |
| 108 | struct gfs2_rgrpd *rgd; |
Steven Whitehouse | 4a993fb | 2012-07-31 15:21:20 +0100 | [diff] [blame] | 109 | u32 offset; /* The offset is bitmap relative */ |
Bob Peterson | e579ed4 | 2013-09-17 13:12:15 -0400 | [diff] [blame] | 110 | int bii; /* Bitmap index */ |
Steven Whitehouse | 4a993fb | 2012-07-31 15:21:20 +0100 | [diff] [blame] | 111 | }; |
| 112 | |
Bob Peterson | e579ed4 | 2013-09-17 13:12:15 -0400 | [diff] [blame] | 113 | static inline struct gfs2_bitmap *rbm_bi(const struct gfs2_rbm *rbm) |
| 114 | { |
| 115 | return rbm->rgd->rd_bits + rbm->bii; |
| 116 | } |
| 117 | |
Steven Whitehouse | 4a993fb | 2012-07-31 15:21:20 +0100 | [diff] [blame] | 118 | static inline u64 gfs2_rbm_to_block(const struct gfs2_rbm *rbm) |
| 119 | { |
Bob Peterson | e579ed4 | 2013-09-17 13:12:15 -0400 | [diff] [blame] | 120 | return rbm->rgd->rd_data0 + (rbm_bi(rbm)->bi_start * GFS2_NBBY) + |
| 121 | rbm->offset; |
Steven Whitehouse | 4a993fb | 2012-07-31 15:21:20 +0100 | [diff] [blame] | 122 | } |
| 123 | |
Steven Whitehouse | 5b924ae | 2012-08-01 20:35:05 +0100 | [diff] [blame] | 124 | static inline bool gfs2_rbm_eq(const struct gfs2_rbm *rbm1, |
| 125 | const struct gfs2_rbm *rbm2) |
| 126 | { |
Bob Peterson | e579ed4 | 2013-09-17 13:12:15 -0400 | [diff] [blame] | 127 | return (rbm1->rgd == rbm2->rgd) && (rbm1->bii == rbm2->bii) && |
Steven Whitehouse | 5b924ae | 2012-08-01 20:35:05 +0100 | [diff] [blame] | 128 | (rbm1->offset == rbm2->offset); |
| 129 | } |
| 130 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 131 | enum gfs2_state_bits { |
| 132 | BH_Pinned = BH_PrivateStart, |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 133 | BH_Escaped = BH_PrivateStart + 1, |
Benjamin Marzinski | 64dd153 | 2011-09-12 18:15:24 -0500 | [diff] [blame] | 134 | BH_Zeronew = BH_PrivateStart + 2, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 135 | }; |
| 136 | |
| 137 | BUFFER_FNS(Pinned, pinned) |
| 138 | TAS_BUFFER_FNS(Pinned, pinned) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 139 | BUFFER_FNS(Escaped, escaped) |
| 140 | TAS_BUFFER_FNS(Escaped, escaped) |
Benjamin Marzinski | 64dd153 | 2011-09-12 18:15:24 -0500 | [diff] [blame] | 141 | BUFFER_FNS(Zeronew, zeronew) |
| 142 | TAS_BUFFER_FNS(Zeronew, zeronew) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 143 | |
| 144 | struct gfs2_bufdata { |
| 145 | struct buffer_head *bd_bh; |
| 146 | struct gfs2_glock *bd_gl; |
Steven Whitehouse | c50b91c | 2012-04-16 16:40:56 +0100 | [diff] [blame] | 147 | u64 bd_blkno; |
Steven Whitehouse | 82e8608 | 2007-09-02 15:39:43 +0100 | [diff] [blame] | 148 | |
Bob Peterson | c0752aa | 2012-05-01 12:00:34 -0400 | [diff] [blame] | 149 | struct list_head bd_list; |
| 150 | const struct gfs2_log_operations *bd_ops; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 151 | |
Benjamin Marzinski | 16ca941 | 2013-04-05 20:31:46 -0500 | [diff] [blame] | 152 | struct gfs2_trans *bd_tr; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 153 | struct list_head bd_ail_st_list; |
| 154 | struct list_head bd_ail_gl_list; |
| 155 | }; |
| 156 | |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 157 | /* |
| 158 | * Internally, we prefix things with gdlm_ and GDLM_ (for gfs-dlm) since a |
| 159 | * prefix of lock_dlm_ gets awkward. |
| 160 | */ |
| 161 | |
| 162 | #define GDLM_STRNAME_BYTES 25 |
| 163 | #define GDLM_LVB_SIZE 32 |
| 164 | |
David Teigland | e0c2a9a | 2012-01-09 17:18:05 -0500 | [diff] [blame] | 165 | /* |
| 166 | * ls_recover_flags: |
| 167 | * |
| 168 | * DFL_BLOCK_LOCKS: dlm is in recovery and will grant locks that had been |
| 169 | * held by failed nodes whose journals need recovery. Those locks should |
| 170 | * only be used for journal recovery until the journal recovery is done. |
| 171 | * This is set by the dlm recover_prep callback and cleared by the |
| 172 | * gfs2_control thread when journal recovery is complete. To avoid |
| 173 | * races between recover_prep setting and gfs2_control clearing, recover_spin |
| 174 | * is held while changing this bit and reading/writing recover_block |
| 175 | * and recover_start. |
| 176 | * |
| 177 | * DFL_NO_DLM_OPS: dlm lockspace ops/callbacks are not being used. |
| 178 | * |
| 179 | * DFL_FIRST_MOUNT: this node is the first to mount this fs and is doing |
| 180 | * recovery of all journals before allowing other nodes to mount the fs. |
| 181 | * This is cleared when FIRST_MOUNT_DONE is set. |
| 182 | * |
| 183 | * DFL_FIRST_MOUNT_DONE: this node was the first mounter, and has finished |
| 184 | * recovery of all journals, and now allows other nodes to mount the fs. |
| 185 | * |
| 186 | * DFL_MOUNT_DONE: gdlm_mount has completed successfully and cleared |
| 187 | * BLOCK_LOCKS for the first time. The gfs2_control thread should now |
| 188 | * control clearing BLOCK_LOCKS for further recoveries. |
| 189 | * |
| 190 | * DFL_UNMOUNT: gdlm_unmount sets to keep sdp off gfs2_control_wq. |
| 191 | * |
| 192 | * DFL_DLM_RECOVERY: set while dlm is in recovery, between recover_prep() |
| 193 | * and recover_done(), i.e. set while recover_block == recover_start. |
| 194 | */ |
| 195 | |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 196 | enum { |
| 197 | DFL_BLOCK_LOCKS = 0, |
David Teigland | e0c2a9a | 2012-01-09 17:18:05 -0500 | [diff] [blame] | 198 | DFL_NO_DLM_OPS = 1, |
| 199 | DFL_FIRST_MOUNT = 2, |
| 200 | DFL_FIRST_MOUNT_DONE = 3, |
| 201 | DFL_MOUNT_DONE = 4, |
| 202 | DFL_UNMOUNT = 5, |
| 203 | DFL_DLM_RECOVERY = 6, |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 204 | }; |
| 205 | |
| 206 | struct lm_lockname { |
Bob Peterson | 15562c4 | 2015-03-16 11:52:05 -0500 | [diff] [blame] | 207 | struct gfs2_sbd *ln_sbd; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 208 | u64 ln_number; |
| 209 | unsigned int ln_type; |
| 210 | }; |
| 211 | |
| 212 | #define lm_name_equal(name1, name2) \ |
Bob Peterson | 15562c4 | 2015-03-16 11:52:05 -0500 | [diff] [blame] | 213 | (((name1)->ln_number == (name2)->ln_number) && \ |
| 214 | ((name1)->ln_type == (name2)->ln_type) && \ |
| 215 | ((name1)->ln_sbd == (name2)->ln_sbd)) |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 216 | |
| 217 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 218 | struct gfs2_glock_operations { |
Bob Peterson | 06dfc30 | 2012-10-24 14:41:05 -0400 | [diff] [blame] | 219 | void (*go_sync) (struct gfs2_glock *gl); |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 220 | int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh); |
Steven Whitehouse | 1a14d3a | 2006-11-20 10:37:45 -0500 | [diff] [blame] | 221 | void (*go_inval) (struct gfs2_glock *gl, int flags); |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 222 | int (*go_demote_ok) (const struct gfs2_glock *gl); |
Steven Whitehouse | 1a14d3a | 2006-11-20 10:37:45 -0500 | [diff] [blame] | 223 | int (*go_lock) (struct gfs2_holder *gh); |
| 224 | void (*go_unlock) (struct gfs2_holder *gh); |
Steven Whitehouse | ac3beb6 | 2014-01-16 10:31:13 +0000 | [diff] [blame] | 225 | void (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); |
Steven Whitehouse | 81ffbf6 | 2013-04-10 10:26:55 +0100 | [diff] [blame] | 226 | void (*go_callback)(struct gfs2_glock *gl, bool remote); |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 227 | const int go_type; |
Steven Whitehouse | 009d851 | 2009-12-08 12:12:13 +0000 | [diff] [blame] | 228 | const unsigned long go_flags; |
| 229 | #define GLOF_ASPACE 1 |
David Teigland | dba2d70 | 2012-11-14 13:46:53 -0500 | [diff] [blame] | 230 | #define GLOF_LVB 2 |
Bob Peterson | e7ccaf5 | 2015-06-12 13:15:54 -0500 | [diff] [blame] | 231 | #define GLOF_LRU 4 |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 232 | }; |
| 233 | |
| 234 | enum { |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 235 | GFS2_LKS_SRTT = 0, /* Non blocking smoothed round trip time */ |
| 236 | GFS2_LKS_SRTTVAR = 1, /* Non blocking smoothed variance */ |
| 237 | GFS2_LKS_SRTTB = 2, /* Blocking smoothed round trip time */ |
| 238 | GFS2_LKS_SRTTVARB = 3, /* Blocking smoothed variance */ |
| 239 | GFS2_LKS_SIRT = 4, /* Smoothed Inter-request time */ |
| 240 | GFS2_LKS_SIRTVAR = 5, /* Smoothed Inter-request variance */ |
| 241 | GFS2_LKS_DCOUNT = 6, /* Count of dlm requests */ |
| 242 | GFS2_LKS_QCOUNT = 7, /* Count of gfs2_holder queues */ |
| 243 | GFS2_NR_LKSTATS |
| 244 | }; |
| 245 | |
| 246 | struct gfs2_lkstats { |
Ben Hutchings | 4d20713 | 2015-08-27 12:51:45 -0500 | [diff] [blame] | 247 | u64 stats[GFS2_NR_LKSTATS]; |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 248 | }; |
| 249 | |
| 250 | enum { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 251 | /* States */ |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 252 | HIF_HOLDER = 6, /* Set for gh that "holds" the glock */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 253 | HIF_FIRST = 7, |
Steven Whitehouse | fee852e | 2007-01-17 15:33:23 +0000 | [diff] [blame] | 254 | HIF_WAIT = 10, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 255 | }; |
| 256 | |
| 257 | struct gfs2_holder { |
| 258 | struct list_head gh_list; |
| 259 | |
| 260 | struct gfs2_glock *gh_gl; |
Pavel Emelyanov | b1e058d | 2008-02-07 00:13:19 -0800 | [diff] [blame] | 261 | struct pid *gh_owner_pid; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 262 | unsigned int gh_state; |
Steven Whitehouse | fe1bded | 2006-04-18 10:09:15 -0400 | [diff] [blame] | 263 | unsigned gh_flags; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 264 | |
| 265 | int gh_error; |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 266 | unsigned long gh_iflags; /* HIF_... */ |
Steven Whitehouse | d0dc80d | 2006-03-29 14:36:49 -0500 | [diff] [blame] | 267 | unsigned long gh_ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 268 | }; |
| 269 | |
Jan Kara | a937cca | 2014-09-10 21:22:51 +0200 | [diff] [blame] | 270 | /* Number of quota types we support */ |
| 271 | #define GFS2_MAXQUOTAS 2 |
| 272 | |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 273 | /* Resource group multi-block reservation, in order of appearance: |
| 274 | |
| 275 | Step 1. Function prepares to write, allocates a mb, sets the size hint. |
| 276 | Step 2. User calls inplace_reserve to target an rgrp, sets the rgrp info |
| 277 | Step 3. Function get_local_rgrp locks the rgrp, determines which bits to use |
| 278 | Step 4. Bits are assigned from the rgrp based on either the reservation |
| 279 | or wherever it can. |
| 280 | */ |
| 281 | |
| 282 | struct gfs2_blkreserv { |
| 283 | /* components used during write (step 1): */ |
| 284 | atomic_t rs_sizehint; /* hint of the write size */ |
| 285 | |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 286 | struct gfs2_holder rs_rgd_gh; /* Filled in by get_local_rgrp */ |
| 287 | struct rb_node rs_node; /* link to other block reservations */ |
Steven Whitehouse | 9e733d3 | 2012-08-23 15:37:59 +0100 | [diff] [blame] | 288 | struct gfs2_rbm rs_rbm; /* Start of reservation */ |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 289 | u32 rs_free; /* how many blocks are still free */ |
Steven Whitehouse | 9e733d3 | 2012-08-23 15:37:59 +0100 | [diff] [blame] | 290 | u64 rs_inum; /* Inode number for reservation */ |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 291 | |
| 292 | /* ancillary quota stuff */ |
Jan Kara | a937cca | 2014-09-10 21:22:51 +0200 | [diff] [blame] | 293 | struct gfs2_quota_data *rs_qa_qd[2 * GFS2_MAXQUOTAS]; |
| 294 | struct gfs2_holder rs_qa_qd_ghs[2 * GFS2_MAXQUOTAS]; |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 295 | unsigned int rs_qa_qd_num; |
| 296 | }; |
| 297 | |
Steven Whitehouse | 7b9cff4 | 2013-10-02 11:13:25 +0100 | [diff] [blame] | 298 | /* |
| 299 | * Allocation parameters |
| 300 | * @target: The number of blocks we'd ideally like to allocate |
| 301 | * @aflags: The flags (e.g. Orlov flag) |
| 302 | * |
| 303 | * The intent is to gradually expand this structure over time in |
| 304 | * order to give more information, e.g. alignment, min extent size |
| 305 | * to the allocation code. |
| 306 | */ |
| 307 | struct gfs2_alloc_parms { |
Abhi Das | b8fbf47 | 2015-03-18 12:03:41 -0500 | [diff] [blame] | 308 | u64 target; |
Abhi Das | 25435e5 | 2015-03-18 12:04:37 -0500 | [diff] [blame] | 309 | u32 min_target; |
Steven Whitehouse | 7b9cff4 | 2013-10-02 11:13:25 +0100 | [diff] [blame] | 310 | u32 aflags; |
Abhi Das | 25435e5 | 2015-03-18 12:04:37 -0500 | [diff] [blame] | 311 | u64 allowed; |
Steven Whitehouse | 7b9cff4 | 2013-10-02 11:13:25 +0100 | [diff] [blame] | 312 | }; |
| 313 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 314 | enum { |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 315 | GLF_LOCK = 1, |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 316 | GLF_DEMOTE = 3, |
| 317 | GLF_PENDING_DEMOTE = 4, |
| 318 | GLF_DEMOTE_IN_PROGRESS = 5, |
| 319 | GLF_DIRTY = 6, |
| 320 | GLF_LFLUSH = 7, |
| 321 | GLF_INVALIDATE_IN_PROGRESS = 8, |
| 322 | GLF_REPLY_PENDING = 9, |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 323 | GLF_INITIAL = 10, |
| 324 | GLF_FROZEN = 11, |
Steven Whitehouse | 7b5e3d5 | 2010-09-03 09:39:20 +0100 | [diff] [blame] | 325 | GLF_QUEUED = 12, |
Steven Whitehouse | 627c10b | 2011-04-14 14:09:52 +0100 | [diff] [blame] | 326 | GLF_LRU = 13, |
| 327 | GLF_OBJECT = 14, /* Used only for tracing */ |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 328 | GLF_BLOCKING = 15, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 329 | }; |
| 330 | |
| 331 | struct gfs2_glock { |
Steven Whitehouse | bc015cb | 2011-01-19 09:30:01 +0000 | [diff] [blame] | 332 | struct hlist_bl_node gl_list; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 333 | unsigned long gl_flags; /* GLF_... */ |
| 334 | struct lm_lockname gl_name; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 335 | |
Steven Whitehouse | e66cf16 | 2013-10-15 15:18:08 +0100 | [diff] [blame] | 336 | struct lockref gl_lockref; |
| 337 | #define gl_spin gl_lockref.lock |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 338 | |
Steven Whitehouse | 47a2538 | 2010-11-30 15:49:31 +0000 | [diff] [blame] | 339 | /* State fields protected by gl_spin */ |
| 340 | unsigned int gl_state:2, /* Current state */ |
| 341 | gl_target:2, /* Target state */ |
| 342 | gl_demote_state:2, /* State requested by remote node */ |
| 343 | gl_req:2, /* State in last dlm request */ |
| 344 | gl_reply:8; /* Last reply from the dlm */ |
| 345 | |
Steven Whitehouse | 3b8249f | 2007-03-16 09:40:31 +0000 | [diff] [blame] | 346 | unsigned long gl_demote_time; /* time of first demote request */ |
Bob Peterson | 7cf8dcd | 2011-06-15 11:41:48 -0400 | [diff] [blame] | 347 | long gl_hold_time; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 348 | struct list_head gl_holders; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 349 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 350 | const struct gfs2_glock_operations *gl_ops; |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 351 | ktime_t gl_dstamp; |
| 352 | struct gfs2_lkstats gl_stats; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 353 | struct dlm_lksb gl_lksb; |
Benjamin Marzinski | c4f68a1 | 2007-08-23 13:19:05 -0500 | [diff] [blame] | 354 | unsigned long gl_tchange; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 355 | void *gl_object; |
| 356 | |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 357 | struct list_head gl_lru; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 358 | struct list_head gl_ail_list; |
| 359 | atomic_t gl_ail_count; |
Steven Whitehouse | f42ab08 | 2011-04-14 16:50:31 +0100 | [diff] [blame] | 360 | atomic_t gl_revokes; |
Benjamin Marzinski | c4f68a1 | 2007-08-23 13:19:05 -0500 | [diff] [blame] | 361 | struct delayed_work gl_work; |
Steven Whitehouse | 7005c3e | 2013-12-06 10:16:14 +0000 | [diff] [blame] | 362 | union { |
| 363 | /* For inode and iopen glocks only */ |
| 364 | struct work_struct gl_delete; |
| 365 | /* For rgrp glocks only */ |
| 366 | struct { |
| 367 | loff_t start; |
| 368 | loff_t end; |
| 369 | } gl_vm; |
| 370 | }; |
Bob Peterson | 88ffbf3 | 2015-03-16 11:02:46 -0500 | [diff] [blame] | 371 | struct rhash_head gl_node; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 372 | }; |
| 373 | |
Steven Whitehouse | da755fd | 2008-01-30 15:34:04 +0000 | [diff] [blame] | 374 | #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ |
| 375 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 376 | enum { |
Steven Whitehouse | bfded27 | 2006-11-01 16:05:38 -0500 | [diff] [blame] | 377 | GIF_INVALID = 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 378 | GIF_QD_LOCKED = 1, |
Steven Whitehouse | 40ac218 | 2011-08-02 13:17:27 +0100 | [diff] [blame] | 379 | GIF_ALLOC_FAILED = 2, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 380 | GIF_SW_PAGED = 3, |
Steven Whitehouse | 4513899 | 2013-01-28 09:30:07 +0000 | [diff] [blame] | 381 | GIF_ORDERED = 4, |
Abhi Das | 0597880 | 2014-03-31 10:33:17 -0500 | [diff] [blame] | 382 | GIF_FREE_VFS_INODE = 5, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 383 | }; |
| 384 | |
| 385 | struct gfs2_inode { |
Steven Whitehouse | 320dd10 | 2006-05-18 16:25:27 -0400 | [diff] [blame] | 386 | struct inode i_inode; |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 387 | u64 i_no_addr; |
| 388 | u64 i_no_formal_ino; |
Steven Whitehouse | bcf0b5b | 2008-11-03 13:39:46 +0000 | [diff] [blame] | 389 | u64 i_generation; |
Steven Whitehouse | 3767ac2 | 2008-11-03 14:28:42 +0000 | [diff] [blame] | 390 | u64 i_eattr; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 391 | unsigned long i_flags; /* GIF_... */ |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 392 | struct gfs2_glock *i_gl; /* Move into i_gh? */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 393 | struct gfs2_holder i_iopen_gh; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 394 | struct gfs2_holder i_gh; /* for prepare/commit_write only */ |
Bob Peterson | 8e2e004 | 2012-07-19 08:12:40 -0400 | [diff] [blame] | 395 | struct gfs2_blkreserv *i_res; /* rgrp multi-block reservation */ |
Steven Whitehouse | 54335b1 | 2011-09-01 13:31:59 +0100 | [diff] [blame] | 396 | struct gfs2_rgrpd *i_rgd; |
Steven Whitehouse | ce276b0 | 2008-02-06 09:25:45 +0000 | [diff] [blame] | 397 | u64 i_goal; /* goal block for allocations */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 398 | struct rw_semaphore i_rw_mutex; |
Steven Whitehouse | 4513899 | 2013-01-28 09:30:07 +0000 | [diff] [blame] | 399 | struct list_head i_ordered; |
Steven Whitehouse | 813e0c4 | 2008-11-18 13:38:48 +0000 | [diff] [blame] | 400 | struct list_head i_trunc_list; |
Steven Whitehouse | 17d539f | 2011-06-15 10:29:37 +0100 | [diff] [blame] | 401 | __be64 *i_hash_cache; |
Steven Whitehouse | ad6203f | 2008-11-03 13:59:19 +0000 | [diff] [blame] | 402 | u32 i_entries; |
Steven Whitehouse | 383f01f | 2008-11-04 10:05:22 +0000 | [diff] [blame] | 403 | u32 i_diskflags; |
Steven Whitehouse | ecc30c7 | 2008-01-28 10:37:35 +0000 | [diff] [blame] | 404 | u8 i_height; |
Steven Whitehouse | 9a00450 | 2008-02-01 09:23:44 +0000 | [diff] [blame] | 405 | u8 i_depth; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 406 | }; |
| 407 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 408 | /* |
| 409 | * Since i_inode is the first element of struct gfs2_inode, |
| 410 | * this is effectively a cast. |
| 411 | */ |
Steven Whitehouse | 320dd10 | 2006-05-18 16:25:27 -0400 | [diff] [blame] | 412 | static inline struct gfs2_inode *GFS2_I(struct inode *inode) |
| 413 | { |
| 414 | return container_of(inode, struct gfs2_inode, i_inode); |
| 415 | } |
| 416 | |
Steven Whitehouse | bf36a71 | 2007-10-17 08:35:19 +0100 | [diff] [blame] | 417 | static inline struct gfs2_sbd *GFS2_SB(const struct inode *inode) |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 418 | { |
| 419 | return inode->i_sb->s_fs_info; |
| 420 | } |
| 421 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 422 | struct gfs2_file { |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 423 | struct mutex f_fl_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 424 | struct gfs2_holder f_fl_gh; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 425 | }; |
| 426 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 427 | struct gfs2_revoke_replay { |
| 428 | struct list_head rr_list; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 429 | u64 rr_blkno; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 430 | unsigned int rr_where; |
| 431 | }; |
| 432 | |
| 433 | enum { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 434 | QDF_CHANGE = 1, |
| 435 | QDF_LOCKED = 2, |
Abhijith Das | 662e3a5 | 2011-03-08 10:40:42 -0500 | [diff] [blame] | 436 | QDF_REFRESH = 3, |
Abhi Das | 9cde289 | 2015-06-02 11:03:04 -0500 | [diff] [blame] | 437 | QDF_QMSG_QUIET = 4, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 438 | }; |
| 439 | |
| 440 | struct gfs2_quota_data { |
Steven Whitehouse | c754fbb | 2013-12-12 10:47:59 +0000 | [diff] [blame] | 441 | struct hlist_bl_node qd_hlist; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 442 | struct list_head qd_list; |
Eric W. Biederman | 05e0a60 | 2013-01-31 19:52:08 -0800 | [diff] [blame] | 443 | struct kqid qd_id; |
Steven Whitehouse | c754fbb | 2013-12-12 10:47:59 +0000 | [diff] [blame] | 444 | struct gfs2_sbd *qd_sbd; |
Steven Whitehouse | 2147dbf | 2013-11-04 10:15:08 +0000 | [diff] [blame] | 445 | struct lockref qd_lockref; |
| 446 | struct list_head qd_lru; |
Steven Whitehouse | c754fbb | 2013-12-12 10:47:59 +0000 | [diff] [blame] | 447 | unsigned qd_hash; |
Steven Whitehouse | 2147dbf | 2013-11-04 10:15:08 +0000 | [diff] [blame] | 448 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 449 | unsigned long qd_flags; /* QDF_... */ |
| 450 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 451 | s64 qd_change; |
| 452 | s64 qd_change_sync; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 453 | |
| 454 | unsigned int qd_slot; |
| 455 | unsigned int qd_slot_count; |
| 456 | |
| 457 | struct buffer_head *qd_bh; |
| 458 | struct gfs2_quota_change *qd_bh_qc; |
| 459 | unsigned int qd_bh_count; |
| 460 | |
| 461 | struct gfs2_glock *qd_gl; |
| 462 | struct gfs2_quota_lvb qd_qb; |
| 463 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 464 | u64 qd_sync_gen; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 465 | unsigned long qd_last_warn; |
Steven Whitehouse | c754fbb | 2013-12-12 10:47:59 +0000 | [diff] [blame] | 466 | struct rcu_head qd_rcu; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 467 | }; |
| 468 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 469 | struct gfs2_trans { |
Steven Whitehouse | d0dc80d | 2006-03-29 14:36:49 -0500 | [diff] [blame] | 470 | unsigned long tr_ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 471 | |
| 472 | unsigned int tr_blocks; |
| 473 | unsigned int tr_revokes; |
| 474 | unsigned int tr_reserved; |
Steven Whitehouse | 654a6d2 | 2014-02-21 11:52:00 +0000 | [diff] [blame] | 475 | unsigned int tr_touched:1; |
| 476 | unsigned int tr_attached:1; |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 477 | unsigned int tr_alloced:1; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 478 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 479 | unsigned int tr_num_buf_new; |
Robert Peterson | 2332c44 | 2007-06-18 14:50:20 -0500 | [diff] [blame] | 480 | unsigned int tr_num_databuf_new; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 481 | unsigned int tr_num_buf_rm; |
Robert Peterson | 2332c44 | 2007-06-18 14:50:20 -0500 | [diff] [blame] | 482 | unsigned int tr_num_databuf_rm; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 483 | unsigned int tr_num_revoke; |
| 484 | unsigned int tr_num_revoke_rm; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 485 | |
Benjamin Marzinski | 16ca941 | 2013-04-05 20:31:46 -0500 | [diff] [blame] | 486 | struct list_head tr_list; |
Steven Whitehouse | d69a3c6 | 2014-02-21 15:22:35 +0000 | [diff] [blame] | 487 | struct list_head tr_databuf; |
| 488 | struct list_head tr_buf; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 489 | |
Benjamin Marzinski | 16ca941 | 2013-04-05 20:31:46 -0500 | [diff] [blame] | 490 | unsigned int tr_first; |
| 491 | struct list_head tr_ail1_list; |
| 492 | struct list_head tr_ail2_list; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 493 | }; |
| 494 | |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 495 | struct gfs2_journal_extent { |
Steven Whitehouse | b50f227 | 2014-03-03 13:35:57 +0000 | [diff] [blame] | 496 | struct list_head list; |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 497 | |
| 498 | unsigned int lblock; /* First logical block */ |
| 499 | u64 dblock; /* First disk block */ |
| 500 | u64 blocks; |
| 501 | }; |
| 502 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 503 | struct gfs2_jdesc { |
| 504 | struct list_head jd_list; |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 505 | struct list_head extent_list; |
Steven Whitehouse | b50f227 | 2014-03-03 13:35:57 +0000 | [diff] [blame] | 506 | unsigned int nr_extents; |
Tejun Heo | 6ecd7c2 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 507 | struct work_struct jd_work; |
Steven Whitehouse | 7359a19 | 2006-02-13 12:27:43 +0000 | [diff] [blame] | 508 | struct inode *jd_inode; |
Steven Whitehouse | fe64d51 | 2009-05-19 10:01:18 +0100 | [diff] [blame] | 509 | unsigned long jd_flags; |
| 510 | #define JDF_RECOVERY 1 |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 511 | unsigned int jd_jid; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 512 | unsigned int jd_blocks; |
David Teigland | 376d377 | 2012-01-09 15:29:20 -0500 | [diff] [blame] | 513 | int jd_recover_error; |
Bob Peterson | a17d758 | 2014-03-06 17:19:15 -0500 | [diff] [blame] | 514 | /* Replay stuff */ |
| 515 | |
| 516 | unsigned int jd_found_blocks; |
| 517 | unsigned int jd_found_revokes; |
| 518 | unsigned int jd_replayed_blocks; |
| 519 | |
| 520 | struct list_head jd_revoke_list; |
| 521 | unsigned int jd_replay_tail; |
| 522 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 523 | }; |
| 524 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 525 | struct gfs2_statfs_change_host { |
| 526 | s64 sc_total; |
| 527 | s64 sc_free; |
| 528 | s64 sc_dinodes; |
| 529 | }; |
| 530 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 531 | #define GFS2_QUOTA_DEFAULT GFS2_QUOTA_OFF |
| 532 | #define GFS2_QUOTA_OFF 0 |
| 533 | #define GFS2_QUOTA_ACCOUNT 1 |
| 534 | #define GFS2_QUOTA_ON 2 |
| 535 | |
| 536 | #define GFS2_DATA_DEFAULT GFS2_DATA_ORDERED |
| 537 | #define GFS2_DATA_WRITEBACK 1 |
| 538 | #define GFS2_DATA_ORDERED 2 |
| 539 | |
Bob Peterson | d34843d | 2009-08-24 10:44:18 +0100 | [diff] [blame] | 540 | #define GFS2_ERRORS_DEFAULT GFS2_ERRORS_WITHDRAW |
| 541 | #define GFS2_ERRORS_WITHDRAW 0 |
| 542 | #define GFS2_ERRORS_CONTINUE 1 /* place holder for future feature */ |
| 543 | #define GFS2_ERRORS_RO 2 /* place holder for future feature */ |
| 544 | #define GFS2_ERRORS_PANIC 3 |
| 545 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 546 | struct gfs2_args { |
Steven Whitehouse | 37ec89e | 2008-09-18 13:49:32 +0100 | [diff] [blame] | 547 | char ar_lockproto[GFS2_LOCKNAME_LEN]; /* Name of the Lock Protocol */ |
| 548 | char ar_locktable[GFS2_LOCKNAME_LEN]; /* Name of the Lock Table */ |
| 549 | char ar_hostdata[GFS2_LOCKNAME_LEN]; /* Host specific data */ |
| 550 | unsigned int ar_spectator:1; /* Don't get a journal */ |
Steven Whitehouse | 37ec89e | 2008-09-18 13:49:32 +0100 | [diff] [blame] | 551 | unsigned int ar_localflocks:1; /* Let the VFS do flock|fcntl */ |
Steven Whitehouse | 37ec89e | 2008-09-18 13:49:32 +0100 | [diff] [blame] | 552 | unsigned int ar_debug:1; /* Oops on errors */ |
Steven Whitehouse | 37ec89e | 2008-09-18 13:49:32 +0100 | [diff] [blame] | 553 | unsigned int ar_posix_acl:1; /* Enable posix acls */ |
| 554 | unsigned int ar_quota:2; /* off/account/on */ |
| 555 | unsigned int ar_suiddir:1; /* suiddir support */ |
| 556 | unsigned int ar_data:2; /* ordered/writeback */ |
| 557 | unsigned int ar_meta:1; /* mount metafs */ |
Steven Whitehouse | f15ab56 | 2009-02-09 09:25:01 +0000 | [diff] [blame] | 558 | unsigned int ar_discard:1; /* discard requests */ |
Bob Peterson | d34843d | 2009-08-24 10:44:18 +0100 | [diff] [blame] | 559 | unsigned int ar_errors:2; /* errors=withdraw | panic */ |
Christoph Hellwig | f25934c | 2009-10-30 08:03:27 +0100 | [diff] [blame] | 560 | unsigned int ar_nobarrier:1; /* do not send barriers */ |
Benjamin Marzinski | 90306c4 | 2012-05-29 23:01:09 -0500 | [diff] [blame] | 561 | unsigned int ar_rgrplvb:1; /* use lvbs for rgrp info */ |
Steven Whitehouse | 48c2b61 | 2009-05-13 14:49:48 +0100 | [diff] [blame] | 562 | int ar_commit; /* Commit interval */ |
Benjamin Marzinski | 3d3c10f | 2009-10-20 02:39:44 -0500 | [diff] [blame] | 563 | int ar_statfs_quantum; /* The fast statfs interval */ |
| 564 | int ar_quota_quantum; /* The quota interval */ |
| 565 | int ar_statfs_percent; /* The % change to force sync */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 566 | }; |
| 567 | |
| 568 | struct gfs2_tune { |
| 569 | spinlock_t gt_spin; |
| 570 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 571 | unsigned int gt_logd_secs; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 572 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 573 | unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */ |
| 574 | unsigned int gt_quota_scale_num; /* Numerator */ |
| 575 | unsigned int gt_quota_scale_den; /* Denominator */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 576 | unsigned int gt_quota_quantum; /* Secs between syncs to quota file */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 577 | unsigned int gt_new_files_jdata; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 578 | unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 579 | unsigned int gt_complain_secs; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 580 | unsigned int gt_statfs_quantum; |
| 581 | unsigned int gt_statfs_slow; |
| 582 | }; |
| 583 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 584 | enum { |
| 585 | SDF_JOURNAL_CHECKED = 0, |
| 586 | SDF_JOURNAL_LIVE = 1, |
| 587 | SDF_SHUTDOWN = 2, |
Steven Whitehouse | 254db57 | 2008-09-26 10:23:22 +0100 | [diff] [blame] | 588 | SDF_NOBARRIERS = 3, |
Steven Whitehouse | fe64d51 | 2009-05-19 10:01:18 +0100 | [diff] [blame] | 589 | SDF_NORECOVERY = 4, |
Steven Whitehouse | 913a71d | 2010-05-06 11:03:29 +0100 | [diff] [blame] | 590 | SDF_DEMOTE = 5, |
Steven Whitehouse | ba6e936 | 2010-06-14 10:01:30 +0100 | [diff] [blame] | 591 | SDF_NOJOURNALID = 6, |
David Teigland | e8ca5cc | 2012-01-09 14:40:06 -0500 | [diff] [blame] | 592 | SDF_RORECOVERY = 7, /* read only recovery */ |
David Teigland | fb6791d | 2012-11-13 10:58:56 -0500 | [diff] [blame] | 593 | SDF_SKIP_DLM_UNLOCK = 8, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 594 | }; |
| 595 | |
Benjamin Marzinski | 2e60d76 | 2014-11-13 20:42:04 -0600 | [diff] [blame] | 596 | enum gfs2_freeze_state { |
| 597 | SFS_UNFROZEN = 0, |
| 598 | SFS_STARTING_FREEZE = 1, |
| 599 | SFS_FROZEN = 2, |
| 600 | }; |
| 601 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 602 | #define GFS2_FSNAME_LEN 256 |
| 603 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 604 | struct gfs2_inum_host { |
| 605 | u64 no_formal_ino; |
| 606 | u64 no_addr; |
| 607 | }; |
| 608 | |
| 609 | struct gfs2_sb_host { |
| 610 | u32 sb_magic; |
| 611 | u32 sb_type; |
| 612 | u32 sb_format; |
| 613 | |
| 614 | u32 sb_fs_format; |
| 615 | u32 sb_multihost_format; |
| 616 | u32 sb_bsize; |
| 617 | u32 sb_bsize_shift; |
| 618 | |
| 619 | struct gfs2_inum_host sb_master_dir; |
| 620 | struct gfs2_inum_host sb_root_dir; |
| 621 | |
| 622 | char sb_lockproto[GFS2_LOCKNAME_LEN]; |
| 623 | char sb_locktable[GFS2_LOCKNAME_LEN]; |
| 624 | }; |
| 625 | |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 626 | /* |
| 627 | * lm_mount() return values |
| 628 | * |
| 629 | * ls_jid - the journal ID this node should use |
| 630 | * ls_first - this node is the first to mount the file system |
| 631 | * ls_lockspace - lock module's context for this file system |
| 632 | * ls_ops - lock module's functions |
| 633 | */ |
| 634 | |
| 635 | struct lm_lockstruct { |
Steven Whitehouse | feb47ca9 | 2010-09-29 15:04:18 +0100 | [diff] [blame] | 636 | int ls_jid; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 637 | unsigned int ls_first; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 638 | const struct lm_lockops *ls_ops; |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 639 | dlm_lockspace_t *ls_dlm; |
| 640 | |
David Teigland | e0c2a9a | 2012-01-09 17:18:05 -0500 | [diff] [blame] | 641 | int ls_recover_jid_done; /* These two are deprecated, */ |
| 642 | int ls_recover_jid_status; /* used previously by gfs_controld */ |
| 643 | |
| 644 | struct dlm_lksb ls_mounted_lksb; /* mounted_lock */ |
| 645 | struct dlm_lksb ls_control_lksb; /* control_lock */ |
| 646 | char ls_control_lvb[GDLM_LVB_SIZE]; /* control_lock lvb */ |
| 647 | struct completion ls_sync_wait; /* {control,mounted}_{lock,unlock} */ |
David Teigland | 57c7310 | 2013-03-05 16:01:47 -0500 | [diff] [blame] | 648 | char *ls_lvb_bits; |
David Teigland | e0c2a9a | 2012-01-09 17:18:05 -0500 | [diff] [blame] | 649 | |
| 650 | spinlock_t ls_recover_spin; /* protects following fields */ |
| 651 | unsigned long ls_recover_flags; /* DFL_ */ |
| 652 | uint32_t ls_recover_mount; /* gen in first recover_done cb */ |
| 653 | uint32_t ls_recover_start; /* gen in last recover_done cb */ |
| 654 | uint32_t ls_recover_block; /* copy recover_start in last recover_prep */ |
| 655 | uint32_t ls_recover_size; /* size of recover_submit, recover_result */ |
| 656 | uint32_t *ls_recover_submit; /* gen in last recover_slot cb per jid */ |
| 657 | uint32_t *ls_recover_result; /* result of last jid recovery */ |
Steven Whitehouse | f057f6c | 2009-01-12 10:43:39 +0000 | [diff] [blame] | 658 | }; |
| 659 | |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 660 | struct gfs2_pcpu_lkstats { |
| 661 | /* One struct for each glock type */ |
| 662 | struct gfs2_lkstats lkstats[10]; |
| 663 | }; |
| 664 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 665 | struct gfs2_sbd { |
| 666 | struct super_block *sd_vfs; |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 667 | struct gfs2_pcpu_lkstats __percpu *sd_lkstats; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 668 | struct kobject sd_kobj; |
| 669 | unsigned long sd_flags; /* SDF_... */ |
Al Viro | f50dfaf | 2006-10-13 20:45:02 -0400 | [diff] [blame] | 670 | struct gfs2_sb_host sd_sb; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 671 | |
| 672 | /* Constants computed on mount */ |
| 673 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 674 | u32 sd_fsb2bb; |
| 675 | u32 sd_fsb2bb_shift; |
| 676 | u32 sd_diptrs; /* Number of pointers in a dinode */ |
| 677 | u32 sd_inptrs; /* Number of pointers in a indirect block */ |
| 678 | u32 sd_jbsize; /* Size of a journaled data block */ |
| 679 | u32 sd_hash_bsize; /* sizeof(exhash block) */ |
| 680 | u32 sd_hash_bsize_shift; |
| 681 | u32 sd_hash_ptrs; /* Number of pointers in a hash block */ |
| 682 | u32 sd_qc_per_block; |
Bob Peterson | a68a0a3 | 2012-10-19 08:32:51 -0400 | [diff] [blame] | 683 | u32 sd_blocks_per_bitmap; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 684 | u32 sd_max_dirres; /* Max blocks needed to add a directory entry */ |
| 685 | u32 sd_max_height; /* Max height of a file's metadata tree */ |
Steven Whitehouse | ecc30c7 | 2008-01-28 10:37:35 +0000 | [diff] [blame] | 686 | u64 sd_heightsize[GFS2_MAX_META_HEIGHT + 1]; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 687 | u32 sd_max_jheight; /* Max height of journaled file's meta tree */ |
Steven Whitehouse | ecc30c7 | 2008-01-28 10:37:35 +0000 | [diff] [blame] | 688 | u64 sd_jheightsize[GFS2_MAX_META_HEIGHT + 1]; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 689 | |
| 690 | struct gfs2_args sd_args; /* Mount arguments */ |
| 691 | struct gfs2_tune sd_tune; /* Filesystem tuning structure */ |
| 692 | |
| 693 | /* Lock Stuff */ |
| 694 | |
| 695 | struct lm_lockstruct sd_lockstruct; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 696 | struct gfs2_holder sd_live_gh; |
| 697 | struct gfs2_glock *sd_rename_gl; |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 698 | struct gfs2_glock *sd_freeze_gl; |
Benjamin Marzinski | 2e60d76 | 2014-11-13 20:42:04 -0600 | [diff] [blame] | 699 | struct work_struct sd_freeze_work; |
Steven Whitehouse | e402746 | 2010-01-25 11:20:19 +0000 | [diff] [blame] | 700 | wait_queue_head_t sd_glock_wait; |
| 701 | atomic_t sd_glock_disposal; |
Steven Whitehouse | 3942ae5 | 2011-07-11 08:53:30 +0100 | [diff] [blame] | 702 | struct completion sd_locking_init; |
Steven Whitehouse | fd95e81 | 2013-02-13 12:21:40 +0000 | [diff] [blame] | 703 | struct completion sd_wdack; |
David Teigland | e0c2a9a | 2012-01-09 17:18:05 -0500 | [diff] [blame] | 704 | struct delayed_work sd_control_work; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 705 | |
| 706 | /* Inode Stuff */ |
| 707 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 708 | struct dentry *sd_master_dir; |
| 709 | struct dentry *sd_root_dir; |
| 710 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 711 | struct inode *sd_jindex; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 712 | struct inode *sd_statfs_inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 713 | struct inode *sd_sc_inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 714 | struct inode *sd_qc_inode; |
| 715 | struct inode *sd_rindex; |
| 716 | struct inode *sd_quota_inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 717 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 718 | /* StatFS stuff */ |
| 719 | |
| 720 | spinlock_t sd_statfs_spin; |
Al Viro | bd209cc | 2006-10-13 23:43:19 -0400 | [diff] [blame] | 721 | struct gfs2_statfs_change_host sd_statfs_master; |
| 722 | struct gfs2_statfs_change_host sd_statfs_local; |
Benjamin Marzinski | 3d3c10f | 2009-10-20 02:39:44 -0500 | [diff] [blame] | 723 | int sd_statfs_force_sync; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 724 | |
| 725 | /* Resource group stuff */ |
| 726 | |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 727 | int sd_rindex_uptodate; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 728 | spinlock_t sd_rindex_spin; |
Bob Peterson | 7c9ca62 | 2011-08-31 09:53:19 +0100 | [diff] [blame] | 729 | struct rb_root sd_rindex_tree; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 730 | unsigned int sd_rgrps; |
Benjamin Marzinski | 3921120 | 2010-08-20 00:21:02 -0500 | [diff] [blame] | 731 | unsigned int sd_max_rg_data; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 732 | |
| 733 | /* Journal index stuff */ |
| 734 | |
| 735 | struct list_head sd_jindex_list; |
| 736 | spinlock_t sd_jindex_spin; |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 737 | struct mutex sd_jindex_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 738 | unsigned int sd_journals; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 739 | |
| 740 | struct gfs2_jdesc *sd_jdesc; |
| 741 | struct gfs2_holder sd_journal_gh; |
| 742 | struct gfs2_holder sd_jinode_gh; |
| 743 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 744 | struct gfs2_holder sd_sc_gh; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 745 | struct gfs2_holder sd_qc_gh; |
| 746 | |
Bob Peterson | 0e48e055 | 2014-06-02 09:40:25 -0400 | [diff] [blame] | 747 | struct completion sd_journal_ready; |
| 748 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 749 | /* Daemon stuff */ |
| 750 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 751 | struct task_struct *sd_logd_process; |
| 752 | struct task_struct *sd_quotad_process; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 753 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 754 | /* Quota stuff */ |
| 755 | |
| 756 | struct list_head sd_quota_list; |
| 757 | atomic_t sd_quota_count; |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 758 | struct mutex sd_quota_mutex; |
Steven Whitehouse | e46c772 | 2013-10-04 12:29:34 +0100 | [diff] [blame] | 759 | struct mutex sd_quota_sync_mutex; |
Steven Whitehouse | 37b2c83 | 2008-11-17 14:25:37 +0000 | [diff] [blame] | 760 | wait_queue_head_t sd_quota_wait; |
Steven Whitehouse | 813e0c4 | 2008-11-18 13:38:48 +0000 | [diff] [blame] | 761 | struct list_head sd_trunc_list; |
| 762 | spinlock_t sd_trunc_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 763 | |
| 764 | unsigned int sd_quota_slots; |
Steven Whitehouse | ee2411a | 2013-12-12 17:29:32 +0000 | [diff] [blame] | 765 | unsigned long *sd_quota_bitmap; |
Steven Whitehouse | 2d9e723 | 2013-12-13 11:46:28 +0000 | [diff] [blame] | 766 | spinlock_t sd_bitmap_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 767 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 768 | u64 sd_quota_sync_gen; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 769 | |
| 770 | /* Log stuff */ |
| 771 | |
Steven Whitehouse | 70d4ee9 | 2013-12-06 16:19:54 +0000 | [diff] [blame] | 772 | struct address_space sd_aspace; |
| 773 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 774 | spinlock_t sd_log_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 775 | |
Benjamin Marzinski | 16ca941 | 2013-04-05 20:31:46 -0500 | [diff] [blame] | 776 | struct gfs2_trans *sd_log_tr; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 777 | unsigned int sd_log_blks_reserved; |
Benjamin Marzinski | 2e95e3f | 2010-03-10 18:10:19 -0600 | [diff] [blame] | 778 | int sd_log_commited_revoke; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 779 | |
Benjamin Marzinski | 5e687ea | 2010-05-04 14:29:16 -0500 | [diff] [blame] | 780 | atomic_t sd_log_pinned; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 781 | unsigned int sd_log_num_revoke; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 782 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 783 | struct list_head sd_log_le_revoke; |
Steven Whitehouse | d7b616e | 2007-09-02 10:48:13 +0100 | [diff] [blame] | 784 | struct list_head sd_log_le_ordered; |
Steven Whitehouse | 4513899 | 2013-01-28 09:30:07 +0000 | [diff] [blame] | 785 | spinlock_t sd_ordered_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 786 | |
Benjamin Marzinski | 5e687ea | 2010-05-04 14:29:16 -0500 | [diff] [blame] | 787 | atomic_t sd_log_thresh1; |
| 788 | atomic_t sd_log_thresh2; |
Steven Whitehouse | fd041f0 | 2007-11-08 14:55:03 +0000 | [diff] [blame] | 789 | atomic_t sd_log_blks_free; |
Benjamin Marzinski | 5e687ea | 2010-05-04 14:29:16 -0500 | [diff] [blame] | 790 | wait_queue_head_t sd_log_waitq; |
| 791 | wait_queue_head_t sd_logd_waitq; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 792 | |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 793 | u64 sd_log_sequence; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 794 | unsigned int sd_log_head; |
| 795 | unsigned int sd_log_tail; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 796 | int sd_log_idle; |
| 797 | |
Steven Whitehouse | 484adff | 2006-03-29 09:12:12 -0500 | [diff] [blame] | 798 | struct rw_semaphore sd_log_flush_lock; |
Steven Whitehouse | 16615be | 2007-09-17 10:59:52 +0100 | [diff] [blame] | 799 | atomic_t sd_log_in_flight; |
Steven Whitehouse | e8c92ed | 2012-04-16 09:28:31 +0100 | [diff] [blame] | 800 | struct bio *sd_log_bio; |
Steven Whitehouse | 16615be | 2007-09-17 10:59:52 +0100 | [diff] [blame] | 801 | wait_queue_head_t sd_log_flush_wait; |
Steven Whitehouse | e8c92ed | 2012-04-16 09:28:31 +0100 | [diff] [blame] | 802 | int sd_log_error; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 803 | |
Benjamin Marzinski | 2e60d76 | 2014-11-13 20:42:04 -0600 | [diff] [blame] | 804 | atomic_t sd_reserving_log; |
| 805 | wait_queue_head_t sd_reserving_log_wait; |
| 806 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 807 | unsigned int sd_log_flush_head; |
Steven Whitehouse | cd91549 | 2006-09-04 12:49:07 -0400 | [diff] [blame] | 808 | u64 sd_log_flush_wrapped; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 809 | |
Dave Chinner | d6a079e | 2011-03-11 11:52:25 +0000 | [diff] [blame] | 810 | spinlock_t sd_ail_lock; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 811 | struct list_head sd_ail1_list; |
| 812 | struct list_head sd_ail2_list; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 813 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 814 | /* For quiescing the filesystem */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 815 | struct gfs2_holder sd_freeze_gh; |
Benjamin Marzinski | 2e60d76 | 2014-11-13 20:42:04 -0600 | [diff] [blame] | 816 | atomic_t sd_freeze_state; |
| 817 | struct mutex sd_freeze_mutex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 818 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 819 | char sd_fsname[GFS2_FSNAME_LEN]; |
| 820 | char sd_table_name[GFS2_FSNAME_LEN]; |
| 821 | char sd_proto_name[GFS2_FSNAME_LEN]; |
| 822 | |
| 823 | /* Debugging crud */ |
| 824 | |
| 825 | unsigned long sd_last_warning; |
Robert Peterson | 5f88209 | 2007-04-18 11:41:11 -0500 | [diff] [blame] | 826 | struct dentry *debugfs_dir; /* debugfs directory */ |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 827 | struct dentry *debugfs_dentry_glocks; |
| 828 | struct dentry *debugfs_dentry_glstats; |
| 829 | struct dentry *debugfs_dentry_sbstats; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 830 | }; |
| 831 | |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 832 | static inline void gfs2_glstats_inc(struct gfs2_glock *gl, int which) |
| 833 | { |
| 834 | gl->gl_stats.stats[which]++; |
| 835 | } |
| 836 | |
| 837 | static inline void gfs2_sbstats_inc(const struct gfs2_glock *gl, int which) |
| 838 | { |
Bob Peterson | 15562c4 | 2015-03-16 11:52:05 -0500 | [diff] [blame] | 839 | const struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; |
Steven Whitehouse | a245769 | 2012-01-20 10:38:36 +0000 | [diff] [blame] | 840 | preempt_disable(); |
| 841 | this_cpu_ptr(sdp->sd_lkstats)->lkstats[gl->gl_name.ln_type].stats[which]++; |
| 842 | preempt_enable(); |
| 843 | } |
| 844 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 845 | #endif /* __INCORE_DOT_H__ */ |
| 846 | |