Thomas Gleixner | 328970d | 2019-05-24 12:04:05 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2 | /* -*- mode: c; c-basic-offset: 8; -*- |
| 3 | * vim: noexpandtab sw=8 ts=8 sts=0: |
| 4 | * |
| 5 | * journal.h |
| 6 | * |
| 7 | * Defines journalling api and structures. |
| 8 | * |
| 9 | * Copyright (C) 2003, 2005 Oracle. All rights reserved. |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 10 | */ |
| 11 | |
| 12 | #ifndef OCFS2_JOURNAL_H |
| 13 | #define OCFS2_JOURNAL_H |
| 14 | |
| 15 | #include <linux/fs.h> |
Mark Fasheh | 53ef99c | 2008-11-18 16:53:43 -0800 | [diff] [blame] | 16 | #include <linux/jbd2.h> |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 17 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 18 | enum ocfs2_journal_state { |
| 19 | OCFS2_JOURNAL_FREE = 0, |
| 20 | OCFS2_JOURNAL_LOADED, |
| 21 | OCFS2_JOURNAL_IN_SHUTDOWN, |
| 22 | }; |
| 23 | |
| 24 | struct ocfs2_super; |
| 25 | struct ocfs2_dinode; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 26 | |
Sunil Mushran | 96a6c64 | 2008-12-16 15:49:16 -0800 | [diff] [blame] | 27 | /* |
| 28 | * The recovery_list is a simple linked list of node numbers to recover. |
| 29 | * It is protected by the recovery_lock. |
| 30 | */ |
| 31 | |
| 32 | struct ocfs2_recovery_map { |
| 33 | unsigned int rm_used; |
| 34 | unsigned int *rm_entries; |
| 35 | }; |
| 36 | |
| 37 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 38 | struct ocfs2_journal { |
| 39 | enum ocfs2_journal_state j_state; /* Journals current state */ |
| 40 | |
| 41 | journal_t *j_journal; /* The kernels journal type */ |
| 42 | struct inode *j_inode; /* Kernel inode pointing to |
| 43 | * this journal */ |
| 44 | struct ocfs2_super *j_osb; /* pointer to the super |
| 45 | * block for the node |
| 46 | * we're currently |
| 47 | * running on -- not |
| 48 | * necessarily the super |
| 49 | * block from the node |
| 50 | * which we usually run |
| 51 | * from (recovery, |
| 52 | * etc) */ |
| 53 | struct buffer_head *j_bh; /* Journal disk inode block */ |
| 54 | atomic_t j_num_trans; /* Number of transactions |
| 55 | * currently in the system. */ |
Goldwyn Rodrigues | 83fd9c7 | 2010-06-10 17:21:36 -0500 | [diff] [blame] | 56 | spinlock_t j_lock; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 57 | unsigned long j_trans_id; |
| 58 | struct rw_semaphore j_trans_barrier; |
| 59 | wait_queue_head_t j_checkpointed; |
| 60 | |
Goldwyn Rodrigues | 83fd9c7 | 2010-06-10 17:21:36 -0500 | [diff] [blame] | 61 | /* both fields protected by j_lock*/ |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 62 | struct list_head j_la_cleanups; |
| 63 | struct work_struct j_recovery_work; |
| 64 | }; |
| 65 | |
| 66 | extern spinlock_t trans_inc_lock; |
| 67 | |
| 68 | /* wrap j_trans_id so we never have it equal to zero. */ |
| 69 | static inline unsigned long ocfs2_inc_trans_id(struct ocfs2_journal *j) |
| 70 | { |
| 71 | unsigned long old_id; |
| 72 | spin_lock(&trans_inc_lock); |
| 73 | old_id = j->j_trans_id++; |
| 74 | if (unlikely(!j->j_trans_id)) |
| 75 | j->j_trans_id = 1; |
| 76 | spin_unlock(&trans_inc_lock); |
| 77 | return old_id; |
| 78 | } |
| 79 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 80 | static inline void ocfs2_set_ci_lock_trans(struct ocfs2_journal *journal, |
| 81 | struct ocfs2_caching_info *ci) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 82 | { |
| 83 | spin_lock(&trans_inc_lock); |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 84 | ci->ci_last_trans = journal->j_trans_id; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 85 | spin_unlock(&trans_inc_lock); |
| 86 | } |
| 87 | |
| 88 | /* Used to figure out whether it's safe to drop a metadata lock on an |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 89 | * cached object. Returns true if all the object's changes have been |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 90 | * checkpointed to disk. You should be holding the spinlock on the |
| 91 | * metadata lock while calling this to be sure that nobody can take |
| 92 | * the lock and put it on another transaction. */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 93 | static inline int ocfs2_ci_fully_checkpointed(struct ocfs2_caching_info *ci) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 94 | { |
| 95 | int ret; |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 96 | struct ocfs2_journal *journal = |
| 97 | OCFS2_SB(ocfs2_metadata_cache_get_super(ci))->journal; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 98 | |
| 99 | spin_lock(&trans_inc_lock); |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 100 | ret = time_after(journal->j_trans_id, ci->ci_last_trans); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 101 | spin_unlock(&trans_inc_lock); |
| 102 | return ret; |
| 103 | } |
| 104 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 105 | /* convenience function to check if an object backed by struct |
| 106 | * ocfs2_caching_info is still new (has never hit disk) Will do you a |
| 107 | * favor and set created_trans = 0 when you've |
| 108 | * been checkpointed. returns '1' if the ci is still new. */ |
| 109 | static inline int ocfs2_ci_is_new(struct ocfs2_caching_info *ci) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 110 | { |
| 111 | int ret; |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 112 | struct ocfs2_journal *journal = |
| 113 | OCFS2_SB(ocfs2_metadata_cache_get_super(ci))->journal; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 114 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 115 | spin_lock(&trans_inc_lock); |
| 116 | ret = !(time_after(journal->j_trans_id, ci->ci_created_trans)); |
| 117 | if (!ret) |
| 118 | ci->ci_created_trans = 0; |
| 119 | spin_unlock(&trans_inc_lock); |
| 120 | return ret; |
| 121 | } |
| 122 | |
| 123 | /* Wrapper for inodes so we can check system files */ |
| 124 | static inline int ocfs2_inode_is_new(struct inode *inode) |
| 125 | { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 126 | /* System files are never "new" as they're written out by |
| 127 | * mkfs. This helps us early during mount, before we have the |
| 128 | * journal open and j_trans_id could be junk. */ |
| 129 | if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE) |
| 130 | return 0; |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 131 | |
| 132 | return ocfs2_ci_is_new(INODE_CACHE(inode)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 133 | } |
| 134 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 135 | static inline void ocfs2_ci_set_new(struct ocfs2_super *osb, |
| 136 | struct ocfs2_caching_info *ci) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 137 | { |
| 138 | spin_lock(&trans_inc_lock); |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 139 | ci->ci_created_trans = osb->journal->j_trans_id; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 140 | spin_unlock(&trans_inc_lock); |
| 141 | } |
| 142 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 143 | /* Exported only for the journal struct init code in super.c. Do not call. */ |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 144 | void ocfs2_orphan_scan_init(struct ocfs2_super *osb); |
Jeff Mahoney | 8b712cd | 2009-07-07 17:22:12 -0400 | [diff] [blame] | 145 | void ocfs2_orphan_scan_start(struct ocfs2_super *osb); |
Srinivas Eeda | 8327393 | 2009-06-03 17:02:55 -0700 | [diff] [blame] | 146 | void ocfs2_orphan_scan_stop(struct ocfs2_super *osb); |
| 147 | void ocfs2_orphan_scan_exit(struct ocfs2_super *osb); |
| 148 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 149 | void ocfs2_complete_recovery(struct work_struct *work); |
Joel Becker | 553abd0 | 2008-02-01 12:03:57 -0800 | [diff] [blame] | 150 | void ocfs2_wait_for_recovery(struct ocfs2_super *osb); |
| 151 | |
| 152 | int ocfs2_recovery_init(struct ocfs2_super *osb); |
| 153 | void ocfs2_recovery_exit(struct ocfs2_super *osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 154 | |
Srinivas Eeda | 9140db0 | 2009-03-06 14:21:46 -0800 | [diff] [blame] | 155 | int ocfs2_compute_replay_slots(struct ocfs2_super *osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 156 | /* |
| 157 | * Journal Control: |
| 158 | * Initialize, Load, Shutdown, Wipe a journal. |
| 159 | * |
| 160 | * ocfs2_journal_init - Initialize journal structures in the OSB. |
| 161 | * ocfs2_journal_load - Load the given journal off disk. Replay it if |
| 162 | * there's transactions still in there. |
| 163 | * ocfs2_journal_shutdown - Shutdown a journal, this will flush all |
| 164 | * uncommitted, uncheckpointed transactions. |
| 165 | * ocfs2_journal_wipe - Wipe transactions from a journal. Optionally |
| 166 | * zero out each block. |
| 167 | * ocfs2_recovery_thread - Perform recovery on a node. osb is our own osb. |
| 168 | * ocfs2_mark_dead_nodes - Start recovery on nodes we won't get a heartbeat |
| 169 | * event on. |
| 170 | * ocfs2_start_checkpoint - Kick the commit thread to do a checkpoint. |
| 171 | */ |
| 172 | void ocfs2_set_journal_params(struct ocfs2_super *osb); |
| 173 | int ocfs2_journal_init(struct ocfs2_journal *journal, |
| 174 | int *dirty); |
| 175 | void ocfs2_journal_shutdown(struct ocfs2_super *osb); |
| 176 | int ocfs2_journal_wipe(struct ocfs2_journal *journal, |
| 177 | int full); |
Sunil Mushran | 539d826 | 2008-07-14 17:31:10 -0700 | [diff] [blame] | 178 | int ocfs2_journal_load(struct ocfs2_journal *journal, int local, |
| 179 | int replayed); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 180 | int ocfs2_check_journals_nolocks(struct ocfs2_super *osb); |
| 181 | void ocfs2_recovery_thread(struct ocfs2_super *osb, |
| 182 | int node_num); |
| 183 | int ocfs2_mark_dead_nodes(struct ocfs2_super *osb); |
| 184 | void ocfs2_complete_mount_recovery(struct ocfs2_super *osb); |
Jan Kara | 2205363 | 2008-10-20 23:50:38 +0200 | [diff] [blame] | 185 | void ocfs2_complete_quota_recovery(struct ocfs2_super *osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 186 | |
| 187 | static inline void ocfs2_start_checkpoint(struct ocfs2_super *osb) |
| 188 | { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 189 | wake_up(&osb->checkpoint_event); |
| 190 | } |
| 191 | |
| 192 | static inline void ocfs2_checkpoint_inode(struct inode *inode) |
| 193 | { |
| 194 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
| 195 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 196 | if (ocfs2_mount_local(osb)) |
| 197 | return; |
| 198 | |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 199 | if (!ocfs2_ci_fully_checkpointed(INODE_CACHE(inode))) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 200 | /* WARNING: This only kicks off a single |
| 201 | * checkpoint. If someone races you and adds more |
| 202 | * metadata to the journal, you won't know, and will |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 203 | * wind up waiting *a lot* longer than necessary. Right |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 204 | * now we only use this in clear_inode so that's |
| 205 | * OK. */ |
| 206 | ocfs2_start_checkpoint(osb); |
| 207 | |
| 208 | wait_event(osb->journal->j_checkpointed, |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 209 | ocfs2_ci_fully_checkpointed(INODE_CACHE(inode))); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 210 | } |
| 211 | } |
| 212 | |
| 213 | /* |
| 214 | * Transaction Handling: |
| 215 | * Manage the lifetime of a transaction handle. |
| 216 | * |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 217 | * ocfs2_start_trans - Begin a transaction. Give it an upper estimate of |
| 218 | * the number of blocks that will be changed during |
| 219 | * this handle. |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 220 | * ocfs2_commit_trans - Complete a handle. It might return -EIO if |
| 221 | * the journal was aborted. The majority of paths don't |
| 222 | * check the return value as an error there comes too |
| 223 | * late to do anything (and will be picked up in a |
| 224 | * later transaction). |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 225 | * ocfs2_extend_trans - Extend a handle by nblocks credits. This may |
| 226 | * commit the handle to disk in the process, but will |
| 227 | * not release any locks taken during the transaction. |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 228 | * ocfs2_journal_access* - Notify the handle that we want to journal this |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 229 | * buffer. Will have to call ocfs2_journal_dirty once |
| 230 | * we've actually dirtied it. Type is one of . or . |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 231 | * Always call the specific flavor of |
| 232 | * ocfs2_journal_access_*() unless you intend to |
| 233 | * manage the checksum by hand. |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 234 | * ocfs2_journal_dirty - Mark a journalled buffer as having dirty data. |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 235 | * ocfs2_jbd2_file_inode - Mark an inode so that its data goes out before |
| 236 | * the current handle commits. |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 237 | */ |
| 238 | |
| 239 | /* You must always start_trans with a number of buffs > 0, but it's |
| 240 | * perfectly legal to go through an entire transaction without having |
| 241 | * dirtied any buffers. */ |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 242 | handle_t *ocfs2_start_trans(struct ocfs2_super *osb, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 243 | int max_buffs); |
Mark Fasheh | 1fabe14 | 2006-10-09 18:11:45 -0700 | [diff] [blame] | 244 | int ocfs2_commit_trans(struct ocfs2_super *osb, |
| 245 | handle_t *handle); |
Mark Fasheh | 1fc5814 | 2006-10-05 14:15:36 -0700 | [diff] [blame] | 246 | int ocfs2_extend_trans(handle_t *handle, int nblocks); |
Younger Liu | 2b1e55c | 2013-09-11 14:19:44 -0700 | [diff] [blame] | 247 | int ocfs2_allocate_extend_trans(handle_t *handle, |
| 248 | int thresh); |
| 249 | |
| 250 | /* |
| 251 | * Define an arbitrary limit for the amount of data we will anticipate |
| 252 | * writing to any given transaction. For unbounded transactions such as |
| 253 | * fallocate(2) we can write more than this, but we always |
| 254 | * start off at the maximum transaction size and grow the transaction |
| 255 | * optimistically as we go. |
| 256 | */ |
| 257 | #define OCFS2_MAX_TRANS_DATA 64U |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 258 | |
| 259 | /* |
| 260 | * Create access is for when we get a newly created buffer and we're |
| 261 | * not gonna read it off disk, but rather fill it ourselves. Right |
| 262 | * now, we don't do anything special with this (it turns into a write |
| 263 | * request), but this is a good placeholder in case we do... |
| 264 | * |
| 265 | * Write access is for when we read a block off disk and are going to |
| 266 | * modify it. This way the journalling layer knows it may need to make |
| 267 | * a copy of that block (if it's part of another, uncommitted |
| 268 | * transaction) before we do so. |
| 269 | */ |
| 270 | #define OCFS2_JOURNAL_ACCESS_CREATE 0 |
| 271 | #define OCFS2_JOURNAL_ACCESS_WRITE 1 |
| 272 | #define OCFS2_JOURNAL_ACCESS_UNDO 2 |
| 273 | |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 274 | |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 275 | /* ocfs2_inode */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 276 | int ocfs2_journal_access_di(handle_t *handle, struct ocfs2_caching_info *ci, |
Joel Becker | 13723d0 | 2008-10-17 19:25:01 -0700 | [diff] [blame] | 277 | struct buffer_head *bh, int type); |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 278 | /* ocfs2_extent_block */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 279 | int ocfs2_journal_access_eb(handle_t *handle, struct ocfs2_caching_info *ci, |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 280 | struct buffer_head *bh, int type); |
Tao Ma | 93c9708 | 2009-08-18 11:19:20 +0800 | [diff] [blame] | 281 | /* ocfs2_refcount_block */ |
| 282 | int ocfs2_journal_access_rb(handle_t *handle, struct ocfs2_caching_info *ci, |
| 283 | struct buffer_head *bh, int type); |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 284 | /* ocfs2_group_desc */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 285 | int ocfs2_journal_access_gd(handle_t *handle, struct ocfs2_caching_info *ci, |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 286 | struct buffer_head *bh, int type); |
| 287 | /* ocfs2_xattr_block */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 288 | int ocfs2_journal_access_xb(handle_t *handle, struct ocfs2_caching_info *ci, |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 289 | struct buffer_head *bh, int type); |
| 290 | /* quota blocks */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 291 | int ocfs2_journal_access_dq(handle_t *handle, struct ocfs2_caching_info *ci, |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 292 | struct buffer_head *bh, int type); |
| 293 | /* dirblock */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 294 | int ocfs2_journal_access_db(handle_t *handle, struct ocfs2_caching_info *ci, |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 295 | struct buffer_head *bh, int type); |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 296 | /* ocfs2_dx_root_block */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 297 | int ocfs2_journal_access_dr(handle_t *handle, struct ocfs2_caching_info *ci, |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 298 | struct buffer_head *bh, int type); |
| 299 | /* ocfs2_dx_leaf */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 300 | int ocfs2_journal_access_dl(handle_t *handle, struct ocfs2_caching_info *ci, |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 301 | struct buffer_head *bh, int type); |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 302 | /* Anything that has no ecc */ |
Joel Becker | 0cf2f76 | 2009-02-12 16:41:25 -0800 | [diff] [blame] | 303 | int ocfs2_journal_access(handle_t *handle, struct ocfs2_caching_info *ci, |
Joel Becker | 50655ae | 2008-09-11 15:53:07 -0700 | [diff] [blame] | 304 | struct buffer_head *bh, int type); |
| 305 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 306 | /* |
| 307 | * A word about the journal_access/journal_dirty "dance". It is |
| 308 | * entirely legal to journal_access a buffer more than once (as long |
| 309 | * as the access type is the same -- I'm not sure what will happen if |
| 310 | * access type is different but this should never happen anyway) It is |
| 311 | * also legal to journal_dirty a buffer more than once. In fact, you |
| 312 | * can even journal_access a buffer after you've done a |
| 313 | * journal_access/journal_dirty pair. The only thing you cannot do |
| 314 | * however, is journal_dirty a buffer which you haven't yet passed to |
| 315 | * journal_access at least once. |
| 316 | * |
| 317 | * That said, 99% of the time this doesn't matter and this is what the |
| 318 | * path looks like: |
| 319 | * |
| 320 | * <read a bh> |
| 321 | * ocfs2_journal_access(handle, bh, OCFS2_JOURNAL_ACCESS_WRITE); |
| 322 | * <modify the bh> |
| 323 | * ocfs2_journal_dirty(handle, bh); |
| 324 | */ |
Joel Becker | ec20cec | 2010-03-19 14:13:52 -0700 | [diff] [blame] | 325 | void ocfs2_journal_dirty(handle_t *handle, struct buffer_head *bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 326 | |
| 327 | /* |
| 328 | * Credit Macros: |
| 329 | * Convenience macros to calculate number of credits needed. |
| 330 | * |
| 331 | * For convenience sake, I have a set of macros here which calculate |
| 332 | * the *maximum* number of sectors which will be changed for various |
| 333 | * metadata updates. |
| 334 | */ |
| 335 | |
| 336 | /* simple file updates like chmod, etc. */ |
| 337 | #define OCFS2_INODE_UPDATE_CREDITS 1 |
| 338 | |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 339 | /* extended attribute block update */ |
| 340 | #define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1 |
| 341 | |
Jan Kara | 0584974 | 2009-07-22 13:17:21 +0200 | [diff] [blame] | 342 | /* Update of a single quota block */ |
| 343 | #define OCFS2_QUOTA_BLOCK_UPDATE_CREDITS 1 |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 344 | |
Jan Kara | 0584974 | 2009-07-22 13:17:21 +0200 | [diff] [blame] | 345 | /* global quotafile inode update, data block */ |
| 346 | #define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \ |
| 347 | OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) |
| 348 | |
| 349 | #define OCFS2_LOCAL_QINFO_WRITE_CREDITS OCFS2_QUOTA_BLOCK_UPDATE_CREDITS |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 350 | /* |
| 351 | * The two writes below can accidentally see global info dirty due |
| 352 | * to set_info() quotactl so make them prepared for the writes. |
| 353 | */ |
| 354 | /* quota data block, global info */ |
| 355 | /* Write to local quota file */ |
Jan Kara | 0584974 | 2009-07-22 13:17:21 +0200 | [diff] [blame] | 356 | #define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ |
| 357 | OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 358 | |
| 359 | /* global quota data block, local quota data block, global quota inode, |
| 360 | * global quota info */ |
Jan Kara | 0584974 | 2009-07-22 13:17:21 +0200 | [diff] [blame] | 361 | #define OCFS2_QSYNC_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ |
| 362 | 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 363 | |
| 364 | static inline int ocfs2_quota_trans_credits(struct super_block *sb) |
| 365 | { |
| 366 | int credits = 0; |
| 367 | |
| 368 | if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) |
| 369 | credits += OCFS2_QWRITE_CREDITS; |
| 370 | if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) |
| 371 | credits += OCFS2_QWRITE_CREDITS; |
| 372 | return credits; |
| 373 | } |
| 374 | |
Tao Ma | d659072 | 2007-12-18 15:47:03 +0800 | [diff] [blame] | 375 | /* group extend. inode update and last group update. */ |
| 376 | #define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) |
| 377 | |
Tao Ma | 7909f2b | 2007-12-18 15:47:25 +0800 | [diff] [blame] | 378 | /* group add. inode update and the new group update. */ |
| 379 | #define OCFS2_GROUP_ADD_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) |
| 380 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 381 | /* get one bit out of a suballocator: dinode + group descriptor + |
| 382 | * prev. group desc. if we relink. */ |
| 383 | #define OCFS2_SUBALLOC_ALLOC (3) |
| 384 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 385 | static inline int ocfs2_inline_to_extents_credits(struct super_block *sb) |
| 386 | { |
| 387 | return OCFS2_SUBALLOC_ALLOC + OCFS2_INODE_UPDATE_CREDITS + |
| 388 | ocfs2_quota_trans_credits(sb); |
| 389 | } |
Mark Fasheh | 1afc32b | 2007-09-07 14:46:51 -0700 | [diff] [blame] | 390 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 391 | /* dinode + group descriptor update. We don't relink on free yet. */ |
| 392 | #define OCFS2_SUBALLOC_FREE (2) |
| 393 | |
| 394 | #define OCFS2_TRUNCATE_LOG_UPDATE OCFS2_INODE_UPDATE_CREDITS |
| 395 | #define OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC (OCFS2_SUBALLOC_FREE \ |
| 396 | + OCFS2_TRUNCATE_LOG_UPDATE) |
| 397 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 398 | static inline int ocfs2_remove_extent_credits(struct super_block *sb) |
| 399 | { |
| 400 | return OCFS2_TRUNCATE_LOG_UPDATE + OCFS2_INODE_UPDATE_CREDITS + |
| 401 | ocfs2_quota_trans_credits(sb); |
| 402 | } |
Mark Fasheh | 063c456 | 2007-07-03 13:34:11 -0700 | [diff] [blame] | 403 | |
Jan Kara | 705773a | 2011-02-03 14:16:19 +0100 | [diff] [blame] | 404 | /* data block for new dir/symlink, allocation of directory block, dx_root |
| 405 | * update for free list */ |
| 406 | #define OCFS2_DIR_LINK_ADDITIONAL_CREDITS (1 + OCFS2_SUBALLOC_ALLOC + 1) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 407 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 408 | static inline int ocfs2_add_dir_index_credits(struct super_block *sb) |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 409 | { |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 410 | /* 1 block for index, 2 allocs (data, metadata), 1 clusters |
| 411 | * worth of blocks for initial extent. */ |
| 412 | return 1 + 2 * OCFS2_SUBALLOC_ALLOC + |
| 413 | ocfs2_clusters_to_blocks(sb, 1); |
| 414 | } |
| 415 | |
| 416 | /* parent fe, parent block, new file entry, index leaf, inode alloc fe, inode |
| 417 | * alloc group descriptor + mkdir/symlink blocks + dir blocks + xattr |
| 418 | * blocks + quota update */ |
| 419 | static inline int ocfs2_mknod_credits(struct super_block *sb, int is_dir, |
| 420 | int xattr_credits) |
| 421 | { |
| 422 | int dir_credits = OCFS2_DIR_LINK_ADDITIONAL_CREDITS; |
| 423 | |
| 424 | if (is_dir) |
| 425 | dir_credits += ocfs2_add_dir_index_credits(sb); |
| 426 | |
| 427 | return 4 + OCFS2_SUBALLOC_ALLOC + dir_credits + xattr_credits + |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 428 | ocfs2_quota_trans_credits(sb); |
| 429 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 430 | |
| 431 | /* local alloc metadata change + main bitmap updates */ |
| 432 | #define OCFS2_WINDOW_MOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS \ |
| 433 | + OCFS2_SUBALLOC_ALLOC + OCFS2_SUBALLOC_FREE) |
| 434 | |
| 435 | /* used when we don't need an allocation change for a dir extend. One |
| 436 | * for the dinode, one for the new block. */ |
| 437 | #define OCFS2_SIMPLE_DIR_EXTEND_CREDITS (2) |
| 438 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 439 | /* file update (nlink, etc) + directory mtime/ctime + dir entry block + quota |
Xiaowei.Hu | 0393afe | 2011-10-19 09:34:19 +0800 | [diff] [blame] | 440 | * update on dir + index leaf + dx root update for free list + |
| 441 | * previous dirblock update in the free list */ |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 442 | static inline int ocfs2_link_credits(struct super_block *sb) |
| 443 | { |
Xiaowei.Hu | 0393afe | 2011-10-19 09:34:19 +0800 | [diff] [blame] | 444 | return 2*OCFS2_INODE_UPDATE_CREDITS + 4 + |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 445 | ocfs2_quota_trans_credits(sb); |
| 446 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 447 | |
| 448 | /* inode + dir inode (if we unlink a dir), + dir entry block + orphan |
Mark Fasheh | e7c17e4 | 2009-01-29 18:17:46 -0800 | [diff] [blame] | 449 | * dir inode link + dir inode index leaf + dir index root */ |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 450 | static inline int ocfs2_unlink_credits(struct super_block *sb) |
| 451 | { |
| 452 | /* The quota update from ocfs2_link_credits is unused here... */ |
Mark Fasheh | e7c17e4 | 2009-01-29 18:17:46 -0800 | [diff] [blame] | 453 | return 2 * OCFS2_INODE_UPDATE_CREDITS + 3 + ocfs2_link_credits(sb); |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 454 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 455 | |
| 456 | /* dinode + orphan dir dinode + inode alloc dinode + orphan dir entry + |
Joel Becker | dfa13f3 | 2009-04-29 17:55:08 -0700 | [diff] [blame] | 457 | * inode alloc group descriptor + orphan dir index root + |
| 458 | * orphan dir index leaf */ |
| 459 | #define OCFS2_DELETE_INODE_CREDITS (3 * OCFS2_INODE_UPDATE_CREDITS + 4) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 460 | |
Joseph Qi | 06ee5c7 | 2015-02-16 15:59:54 -0800 | [diff] [blame] | 461 | /* dinode + orphan dir dinode + extent tree leaf block + orphan dir entry + |
| 462 | * orphan dir index root + orphan dir index leaf */ |
| 463 | #define OCFS2_INODE_ADD_TO_ORPHAN_CREDITS (2 * OCFS2_INODE_UPDATE_CREDITS + 4) |
| 464 | #define OCFS2_INODE_DEL_FROM_ORPHAN_CREDITS OCFS2_INODE_ADD_TO_ORPHAN_CREDITS |
| 465 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 466 | /* dinode update, old dir dinode update, new dir dinode update, old |
| 467 | * dir dir entry, new dir dir entry, dir entry update for renaming |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 468 | * directory + target unlink + 3 x dir index leaves */ |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 469 | static inline int ocfs2_rename_credits(struct super_block *sb) |
| 470 | { |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 471 | return 3 * OCFS2_INODE_UPDATE_CREDITS + 6 + ocfs2_unlink_credits(sb); |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 472 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 473 | |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 474 | /* global bitmap dinode, group desc., relinked group, |
| 475 | * suballocator dinode, group desc., relinked group, |
| 476 | * dinode, xattr block */ |
| 477 | #define OCFS2_XATTR_BLOCK_CREATE_CREDITS (OCFS2_SUBALLOC_ALLOC * 2 + \ |
| 478 | + OCFS2_INODE_UPDATE_CREDITS \ |
| 479 | + OCFS2_XATTR_BLOCK_UPDATE_CREDITS) |
| 480 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 481 | /* inode update, removal of dx root block from allocator */ |
| 482 | #define OCFS2_DX_ROOT_REMOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \ |
| 483 | OCFS2_SUBALLOC_FREE) |
| 484 | |
Mark Fasheh | 4ed8a6b | 2008-11-24 17:02:08 -0800 | [diff] [blame] | 485 | static inline int ocfs2_calc_dxi_expand_credits(struct super_block *sb) |
| 486 | { |
| 487 | int credits = 1 + OCFS2_SUBALLOC_ALLOC; |
| 488 | |
| 489 | credits += ocfs2_clusters_to_blocks(sb, 1); |
| 490 | credits += ocfs2_quota_trans_credits(sb); |
| 491 | |
| 492 | return credits; |
| 493 | } |
| 494 | |
Tao Ma | 8bf396d | 2009-08-24 11:12:02 +0800 | [diff] [blame] | 495 | /* inode update, new refcount block and its allocation credits. */ |
| 496 | #define OCFS2_REFCOUNT_TREE_CREATE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1 \ |
| 497 | + OCFS2_SUBALLOC_ALLOC) |
| 498 | |
| 499 | /* inode and the refcount block update. */ |
| 500 | #define OCFS2_REFCOUNT_TREE_SET_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) |
| 501 | |
| 502 | /* |
| 503 | * inode and the refcount block update. |
| 504 | * It doesn't include the credits for sub alloc change. |
| 505 | * So if we need to free the bit, OCFS2_SUBALLOC_FREE needs to be added. |
| 506 | */ |
| 507 | #define OCFS2_REFCOUNT_TREE_REMOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) |
| 508 | |
Tao Ma | bcbbb24 | 2009-08-18 11:29:12 +0800 | [diff] [blame] | 509 | /* 2 metadata alloc, 2 new blocks and root refcount block */ |
| 510 | #define OCFS2_EXPAND_REFCOUNT_TREE_CREDITS (OCFS2_SUBALLOC_ALLOC * 2 + 3) |
| 511 | |
Tao Ma | 811f933 | 2008-08-18 17:38:43 +0800 | [diff] [blame] | 512 | /* |
| 513 | * Please note that the caller must make sure that root_el is the root |
| 514 | * of extent tree. So for an inode, it should be &fe->id2.i_list. Otherwise |
| 515 | * the result may be wrong. |
| 516 | */ |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 517 | static inline int ocfs2_calc_extend_credits(struct super_block *sb, |
Goldwyn Rodrigues | 06f9da6 | 2013-11-12 15:06:52 -0800 | [diff] [blame] | 518 | struct ocfs2_extent_list *root_el) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 519 | { |
Tao Ma | 811f933 | 2008-08-18 17:38:43 +0800 | [diff] [blame] | 520 | int bitmap_blocks, sysfile_bitmap_blocks, extent_blocks; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 521 | |
| 522 | /* bitmap dinode, group desc. + relinked group. */ |
| 523 | bitmap_blocks = OCFS2_SUBALLOC_ALLOC; |
| 524 | |
| 525 | /* we might need to shift tree depth so lets assume an |
| 526 | * absolute worst case of complete fragmentation. Even with |
| 527 | * that, we only need one update for the dinode, and then |
| 528 | * however many metadata chunks needed * a remaining suballoc |
| 529 | * alloc. */ |
| 530 | sysfile_bitmap_blocks = 1 + |
Tao Ma | 811f933 | 2008-08-18 17:38:43 +0800 | [diff] [blame] | 531 | (OCFS2_SUBALLOC_ALLOC - 1) * ocfs2_extend_meta_needed(root_el); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 532 | |
| 533 | /* this does not include *new* metadata blocks, which are |
Tao Ma | 811f933 | 2008-08-18 17:38:43 +0800 | [diff] [blame] | 534 | * accounted for in sysfile_bitmap_blocks. root_el + |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 535 | * prev. last_eb_blk + blocks along edge of tree. |
| 536 | * calc_symlink_credits passes because we just need 1 |
| 537 | * credit for the dinode there. */ |
Tao Ma | 811f933 | 2008-08-18 17:38:43 +0800 | [diff] [blame] | 538 | extent_blocks = 1 + 1 + le16_to_cpu(root_el->l_tree_depth); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 539 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 540 | return bitmap_blocks + sysfile_bitmap_blocks + extent_blocks + |
Jie Liu | 6115ea2 | 2013-08-13 16:00:57 -0700 | [diff] [blame] | 541 | ocfs2_quota_trans_credits(sb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 542 | } |
| 543 | |
| 544 | static inline int ocfs2_calc_symlink_credits(struct super_block *sb) |
| 545 | { |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 546 | int blocks = ocfs2_mknod_credits(sb, 0, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 547 | |
| 548 | /* links can be longer than one block so we may update many |
| 549 | * within our single allocated extent. */ |
| 550 | blocks += ocfs2_clusters_to_blocks(sb, 1); |
| 551 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 552 | return blocks + ocfs2_quota_trans_credits(sb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 553 | } |
| 554 | |
| 555 | static inline int ocfs2_calc_group_alloc_credits(struct super_block *sb, |
| 556 | unsigned int cpg) |
| 557 | { |
| 558 | int blocks; |
| 559 | int bitmap_blocks = OCFS2_SUBALLOC_ALLOC + 1; |
| 560 | /* parent inode update + new block group header + bitmap inode update |
| 561 | + bitmap blocks affected */ |
| 562 | blocks = 1 + 1 + 1 + bitmap_blocks; |
| 563 | return blocks; |
| 564 | } |
| 565 | |
Joel Becker | 8b06bc5 | 2010-03-26 10:09:29 +0800 | [diff] [blame] | 566 | /* |
| 567 | * Allocating a discontiguous block group requires the credits from |
| 568 | * ocfs2_calc_group_alloc_credits() as well as enough credits to fill |
| 569 | * the group descriptor's extent list. The caller already has started |
| 570 | * the transaction with ocfs2_calc_group_alloc_credits(). They extend |
| 571 | * it with these credits. |
| 572 | */ |
| 573 | static inline int ocfs2_calc_bg_discontig_credits(struct super_block *sb) |
| 574 | { |
| 575 | return ocfs2_extent_recs_per_gd(sb); |
| 576 | } |
| 577 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 578 | static inline int ocfs2_calc_tree_trunc_credits(struct super_block *sb, |
| 579 | unsigned int clusters_to_del, |
| 580 | struct ocfs2_dinode *fe, |
| 581 | struct ocfs2_extent_list *last_el) |
| 582 | { |
| 583 | /* for dinode + all headers in this pass + update to next leaf */ |
| 584 | u16 next_free = le16_to_cpu(last_el->l_next_free_rec); |
| 585 | u16 tree_depth = le16_to_cpu(fe->id2.i_list.l_tree_depth); |
| 586 | int credits = 1 + tree_depth + 1; |
| 587 | int i; |
| 588 | |
| 589 | i = next_free - 1; |
| 590 | BUG_ON(i < 0); |
| 591 | |
| 592 | /* We may be deleting metadata blocks, so metadata alloc dinode + |
| 593 | one desc. block for each possible delete. */ |
| 594 | if (tree_depth && next_free == 1 && |
Mark Fasheh | e48edee | 2007-03-07 16:46:57 -0800 | [diff] [blame] | 595 | ocfs2_rec_clusters(last_el, &last_el->l_recs[i]) == clusters_to_del) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 596 | credits += 1 + tree_depth; |
| 597 | |
| 598 | /* update to the truncate log. */ |
| 599 | credits += OCFS2_TRUNCATE_LOG_UPDATE; |
| 600 | |
Jan Kara | a90714c | 2008-10-09 19:38:40 +0200 | [diff] [blame] | 601 | credits += ocfs2_quota_trans_credits(sb); |
| 602 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 603 | return credits; |
| 604 | } |
| 605 | |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 606 | static inline int ocfs2_jbd2_file_inode(handle_t *handle, struct inode *inode) |
| 607 | { |
Jan Kara | 41617e1 | 2016-04-24 00:56:07 -0400 | [diff] [blame] | 608 | return jbd2_journal_inode_add_write(handle, &OCFS2_I(inode)->ip_jinode); |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | static inline int ocfs2_begin_ordered_truncate(struct inode *inode, |
| 612 | loff_t new_size) |
| 613 | { |
Jan Kara | 7f5aa21 | 2009-02-10 11:15:34 -0500 | [diff] [blame] | 614 | return jbd2_journal_begin_ordered_truncate( |
| 615 | OCFS2_SB(inode->i_sb)->journal->j_journal, |
| 616 | &OCFS2_I(inode)->ip_jinode, |
| 617 | new_size); |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 618 | } |
| 619 | |
Darrick J. Wong | 2931cdc | 2014-04-03 14:46:48 -0700 | [diff] [blame] | 620 | static inline void ocfs2_update_inode_fsync_trans(handle_t *handle, |
| 621 | struct inode *inode, |
| 622 | int datasync) |
| 623 | { |
| 624 | struct ocfs2_inode_info *oi = OCFS2_I(inode); |
| 625 | |
| 626 | oi->i_sync_tid = handle->h_transaction->t_tid; |
| 627 | if (datasync) |
| 628 | oi->i_datasync_tid = handle->h_transaction->t_tid; |
| 629 | } |
| 630 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 631 | #endif /* OCFS2_JOURNAL_H */ |