diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/ocfs2/journal.h')
| -rw-r--r-- | ANDROID_3.4.5/fs/ocfs2/journal.h | 620 |
1 files changed, 0 insertions, 620 deletions
diff --git a/ANDROID_3.4.5/fs/ocfs2/journal.h b/ANDROID_3.4.5/fs/ocfs2/journal.h deleted file mode 100644 index a3385b63..00000000 --- a/ANDROID_3.4.5/fs/ocfs2/journal.h +++ /dev/null @@ -1,620 +0,0 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * - * journal.h - * - * Defines journalling api and structures. - * - * Copyright (C) 2003, 2005 Oracle. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - */ - -#ifndef OCFS2_JOURNAL_H -#define OCFS2_JOURNAL_H - -#include <linux/fs.h> -#include <linux/jbd2.h> - -enum ocfs2_journal_state { - OCFS2_JOURNAL_FREE = 0, - OCFS2_JOURNAL_LOADED, - OCFS2_JOURNAL_IN_SHUTDOWN, -}; - -struct ocfs2_super; -struct ocfs2_dinode; - -/* - * The recovery_list is a simple linked list of node numbers to recover. - * It is protected by the recovery_lock. - */ - -struct ocfs2_recovery_map { - unsigned int rm_used; - unsigned int *rm_entries; -}; - - -struct ocfs2_journal { - enum ocfs2_journal_state j_state; /* Journals current state */ - - journal_t *j_journal; /* The kernels journal type */ - struct inode *j_inode; /* Kernel inode pointing to - * this journal */ - struct ocfs2_super *j_osb; /* pointer to the super - * block for the node - * we're currently - * running on -- not - * necessarily the super - * block from the node - * which we usually run - * from (recovery, - * etc) */ - struct buffer_head *j_bh; /* Journal disk inode block */ - atomic_t j_num_trans; /* Number of transactions - * currently in the system. */ - spinlock_t j_lock; - unsigned long j_trans_id; - struct rw_semaphore j_trans_barrier; - wait_queue_head_t j_checkpointed; - - /* both fields protected by j_lock*/ - struct list_head j_la_cleanups; - struct work_struct j_recovery_work; -}; - -extern spinlock_t trans_inc_lock; - -/* wrap j_trans_id so we never have it equal to zero. */ -static inline unsigned long ocfs2_inc_trans_id(struct ocfs2_journal *j) -{ - unsigned long old_id; - spin_lock(&trans_inc_lock); - old_id = j->j_trans_id++; - if (unlikely(!j->j_trans_id)) - j->j_trans_id = 1; - spin_unlock(&trans_inc_lock); - return old_id; -} - -static inline void ocfs2_set_ci_lock_trans(struct ocfs2_journal *journal, - struct ocfs2_caching_info *ci) -{ - spin_lock(&trans_inc_lock); - ci->ci_last_trans = journal->j_trans_id; - spin_unlock(&trans_inc_lock); -} - -/* Used to figure out whether it's safe to drop a metadata lock on an - * cached object. Returns true if all the object's changes have been - * checkpointed to disk. You should be holding the spinlock on the - * metadata lock while calling this to be sure that nobody can take - * the lock and put it on another transaction. */ -static inline int ocfs2_ci_fully_checkpointed(struct ocfs2_caching_info *ci) -{ - int ret; - struct ocfs2_journal *journal = - OCFS2_SB(ocfs2_metadata_cache_get_super(ci))->journal; - - spin_lock(&trans_inc_lock); - ret = time_after(journal->j_trans_id, ci->ci_last_trans); - spin_unlock(&trans_inc_lock); - return ret; -} - -/* convenience function to check if an object backed by struct - * ocfs2_caching_info is still new (has never hit disk) Will do you a - * favor and set created_trans = 0 when you've - * been checkpointed. returns '1' if the ci is still new. */ -static inline int ocfs2_ci_is_new(struct ocfs2_caching_info *ci) -{ - int ret; - struct ocfs2_journal *journal = - OCFS2_SB(ocfs2_metadata_cache_get_super(ci))->journal; - - spin_lock(&trans_inc_lock); - ret = !(time_after(journal->j_trans_id, ci->ci_created_trans)); - if (!ret) - ci->ci_created_trans = 0; - spin_unlock(&trans_inc_lock); - return ret; -} - -/* Wrapper for inodes so we can check system files */ -static inline int ocfs2_inode_is_new(struct inode *inode) -{ - /* System files are never "new" as they're written out by - * mkfs. This helps us early during mount, before we have the - * journal open and j_trans_id could be junk. */ - if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE) - return 0; - - return ocfs2_ci_is_new(INODE_CACHE(inode)); -} - -static inline void ocfs2_ci_set_new(struct ocfs2_super *osb, - struct ocfs2_caching_info *ci) -{ - spin_lock(&trans_inc_lock); - ci->ci_created_trans = osb->journal->j_trans_id; - spin_unlock(&trans_inc_lock); -} - -/* Exported only for the journal struct init code in super.c. Do not call. */ -void ocfs2_orphan_scan_init(struct ocfs2_super *osb); -void ocfs2_orphan_scan_start(struct ocfs2_super *osb); -void ocfs2_orphan_scan_stop(struct ocfs2_super *osb); -void ocfs2_orphan_scan_exit(struct ocfs2_super *osb); - -void ocfs2_complete_recovery(struct work_struct *work); -void ocfs2_wait_for_recovery(struct ocfs2_super *osb); - -int ocfs2_recovery_init(struct ocfs2_super *osb); -void ocfs2_recovery_exit(struct ocfs2_super *osb); - -int ocfs2_compute_replay_slots(struct ocfs2_super *osb); -/* - * Journal Control: - * Initialize, Load, Shutdown, Wipe a journal. - * - * ocfs2_journal_init - Initialize journal structures in the OSB. - * ocfs2_journal_load - Load the given journal off disk. Replay it if - * there's transactions still in there. - * ocfs2_journal_shutdown - Shutdown a journal, this will flush all - * uncommitted, uncheckpointed transactions. - * ocfs2_journal_wipe - Wipe transactions from a journal. Optionally - * zero out each block. - * ocfs2_recovery_thread - Perform recovery on a node. osb is our own osb. - * ocfs2_mark_dead_nodes - Start recovery on nodes we won't get a heartbeat - * event on. - * ocfs2_start_checkpoint - Kick the commit thread to do a checkpoint. - */ -void ocfs2_set_journal_params(struct ocfs2_super *osb); -int ocfs2_journal_init(struct ocfs2_journal *journal, - int *dirty); -void ocfs2_journal_shutdown(struct ocfs2_super *osb); -int ocfs2_journal_wipe(struct ocfs2_journal *journal, - int full); -int ocfs2_journal_load(struct ocfs2_journal *journal, int local, - int replayed); -int ocfs2_check_journals_nolocks(struct ocfs2_super *osb); -void ocfs2_recovery_thread(struct ocfs2_super *osb, - int node_num); -int ocfs2_mark_dead_nodes(struct ocfs2_super *osb); -void ocfs2_complete_mount_recovery(struct ocfs2_super *osb); -void ocfs2_complete_quota_recovery(struct ocfs2_super *osb); - -static inline void ocfs2_start_checkpoint(struct ocfs2_super *osb) -{ - atomic_set(&osb->needs_checkpoint, 1); - wake_up(&osb->checkpoint_event); -} - -static inline void ocfs2_checkpoint_inode(struct inode *inode) -{ - struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); - - if (ocfs2_mount_local(osb)) - return; - - if (!ocfs2_ci_fully_checkpointed(INODE_CACHE(inode))) { - /* WARNING: This only kicks off a single - * checkpoint. If someone races you and adds more - * metadata to the journal, you won't know, and will - * wind up waiting *a lot* longer than necessary. Right - * now we only use this in clear_inode so that's - * OK. */ - ocfs2_start_checkpoint(osb); - - wait_event(osb->journal->j_checkpointed, - ocfs2_ci_fully_checkpointed(INODE_CACHE(inode))); - } -} - -/* - * Transaction Handling: - * Manage the lifetime of a transaction handle. - * - * ocfs2_start_trans - Begin a transaction. Give it an upper estimate of - * the number of blocks that will be changed during - * this handle. - * ocfs2_commit_trans - Complete a handle. It might return -EIO if - * the journal was aborted. The majority of paths don't - * check the return value as an error there comes too - * late to do anything (and will be picked up in a - * later transaction). - * ocfs2_extend_trans - Extend a handle by nblocks credits. This may - * commit the handle to disk in the process, but will - * not release any locks taken during the transaction. - * ocfs2_journal_access* - Notify the handle that we want to journal this - * buffer. Will have to call ocfs2_journal_dirty once - * we've actually dirtied it. Type is one of . or . - * Always call the specific flavor of - * ocfs2_journal_access_*() unless you intend to - * manage the checksum by hand. - * ocfs2_journal_dirty - Mark a journalled buffer as having dirty data. - * ocfs2_jbd2_file_inode - Mark an inode so that its data goes out before - * the current handle commits. - */ - -/* You must always start_trans with a number of buffs > 0, but it's - * perfectly legal to go through an entire transaction without having - * dirtied any buffers. */ -handle_t *ocfs2_start_trans(struct ocfs2_super *osb, - int max_buffs); -int ocfs2_commit_trans(struct ocfs2_super *osb, - handle_t *handle); -int ocfs2_extend_trans(handle_t *handle, int nblocks); - -/* - * Create access is for when we get a newly created buffer and we're - * not gonna read it off disk, but rather fill it ourselves. Right - * now, we don't do anything special with this (it turns into a write - * request), but this is a good placeholder in case we do... - * - * Write access is for when we read a block off disk and are going to - * modify it. This way the journalling layer knows it may need to make - * a copy of that block (if it's part of another, uncommitted - * transaction) before we do so. - */ -#define OCFS2_JOURNAL_ACCESS_CREATE 0 -#define OCFS2_JOURNAL_ACCESS_WRITE 1 -#define OCFS2_JOURNAL_ACCESS_UNDO 2 - - -/* ocfs2_inode */ -int ocfs2_journal_access_di(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* ocfs2_extent_block */ -int ocfs2_journal_access_eb(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* ocfs2_refcount_block */ -int ocfs2_journal_access_rb(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* ocfs2_group_desc */ -int ocfs2_journal_access_gd(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* ocfs2_xattr_block */ -int ocfs2_journal_access_xb(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* quota blocks */ -int ocfs2_journal_access_dq(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* dirblock */ -int ocfs2_journal_access_db(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* ocfs2_dx_root_block */ -int ocfs2_journal_access_dr(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* ocfs2_dx_leaf */ -int ocfs2_journal_access_dl(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); -/* Anything that has no ecc */ -int ocfs2_journal_access(handle_t *handle, struct ocfs2_caching_info *ci, - struct buffer_head *bh, int type); - -/* - * A word about the journal_access/journal_dirty "dance". It is - * entirely legal to journal_access a buffer more than once (as long - * as the access type is the same -- I'm not sure what will happen if - * access type is different but this should never happen anyway) It is - * also legal to journal_dirty a buffer more than once. In fact, you - * can even journal_access a buffer after you've done a - * journal_access/journal_dirty pair. The only thing you cannot do - * however, is journal_dirty a buffer which you haven't yet passed to - * journal_access at least once. - * - * That said, 99% of the time this doesn't matter and this is what the - * path looks like: - * - * <read a bh> - * ocfs2_journal_access(handle, bh, OCFS2_JOURNAL_ACCESS_WRITE); - * <modify the bh> - * ocfs2_journal_dirty(handle, bh); - */ -void ocfs2_journal_dirty(handle_t *handle, struct buffer_head *bh); - -/* - * Credit Macros: - * Convenience macros to calculate number of credits needed. - * - * For convenience sake, I have a set of macros here which calculate - * the *maximum* number of sectors which will be changed for various - * metadata updates. - */ - -/* simple file updates like chmod, etc. */ -#define OCFS2_INODE_UPDATE_CREDITS 1 - -/* extended attribute block update */ -#define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1 - -/* Update of a single quota block */ -#define OCFS2_QUOTA_BLOCK_UPDATE_CREDITS 1 - -/* global quotafile inode update, data block */ -#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \ - OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) - -#define OCFS2_LOCAL_QINFO_WRITE_CREDITS OCFS2_QUOTA_BLOCK_UPDATE_CREDITS -/* - * The two writes below can accidentally see global info dirty due - * to set_info() quotactl so make them prepared for the writes. - */ -/* quota data block, global info */ -/* Write to local quota file */ -#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ - OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) - -/* global quota data block, local quota data block, global quota inode, - * global quota info */ -#define OCFS2_QSYNC_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ - 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) - -static inline int ocfs2_quota_trans_credits(struct super_block *sb) -{ - int credits = 0; - - if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) - credits += OCFS2_QWRITE_CREDITS; - if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) - credits += OCFS2_QWRITE_CREDITS; - return credits; -} - -/* group extend. inode update and last group update. */ -#define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) - -/* group add. inode update and the new group update. */ -#define OCFS2_GROUP_ADD_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) - -/* get one bit out of a suballocator: dinode + group descriptor + - * prev. group desc. if we relink. */ -#define OCFS2_SUBALLOC_ALLOC (3) - -static inline int ocfs2_inline_to_extents_credits(struct super_block *sb) -{ - return OCFS2_SUBALLOC_ALLOC + OCFS2_INODE_UPDATE_CREDITS + - ocfs2_quota_trans_credits(sb); -} - -/* dinode + group descriptor update. We don't relink on free yet. */ -#define OCFS2_SUBALLOC_FREE (2) - -#define OCFS2_TRUNCATE_LOG_UPDATE OCFS2_INODE_UPDATE_CREDITS -#define OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC (OCFS2_SUBALLOC_FREE \ - + OCFS2_TRUNCATE_LOG_UPDATE) - -static inline int ocfs2_remove_extent_credits(struct super_block *sb) -{ - return OCFS2_TRUNCATE_LOG_UPDATE + OCFS2_INODE_UPDATE_CREDITS + - ocfs2_quota_trans_credits(sb); -} - -/* data block for new dir/symlink, allocation of directory block, dx_root - * update for free list */ -#define OCFS2_DIR_LINK_ADDITIONAL_CREDITS (1 + OCFS2_SUBALLOC_ALLOC + 1) - -static inline int ocfs2_add_dir_index_credits(struct super_block *sb) -{ - /* 1 block for index, 2 allocs (data, metadata), 1 clusters - * worth of blocks for initial extent. */ - return 1 + 2 * OCFS2_SUBALLOC_ALLOC + - ocfs2_clusters_to_blocks(sb, 1); -} - -/* parent fe, parent block, new file entry, index leaf, inode alloc fe, inode - * alloc group descriptor + mkdir/symlink blocks + dir blocks + xattr - * blocks + quota update */ -static inline int ocfs2_mknod_credits(struct super_block *sb, int is_dir, - int xattr_credits) -{ - int dir_credits = OCFS2_DIR_LINK_ADDITIONAL_CREDITS; - - if (is_dir) - dir_credits += ocfs2_add_dir_index_credits(sb); - - return 4 + OCFS2_SUBALLOC_ALLOC + dir_credits + xattr_credits + - ocfs2_quota_trans_credits(sb); -} - -/* local alloc metadata change + main bitmap updates */ -#define OCFS2_WINDOW_MOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS \ - + OCFS2_SUBALLOC_ALLOC + OCFS2_SUBALLOC_FREE) - -/* used when we don't need an allocation change for a dir extend. One - * for the dinode, one for the new block. */ -#define OCFS2_SIMPLE_DIR_EXTEND_CREDITS (2) - -/* file update (nlink, etc) + directory mtime/ctime + dir entry block + quota - * update on dir + index leaf + dx root update for free list + - * previous dirblock update in the free list */ -static inline int ocfs2_link_credits(struct super_block *sb) -{ - return 2*OCFS2_INODE_UPDATE_CREDITS + 4 + - ocfs2_quota_trans_credits(sb); -} - -/* inode + dir inode (if we unlink a dir), + dir entry block + orphan - * dir inode link + dir inode index leaf + dir index root */ -static inline int ocfs2_unlink_credits(struct super_block *sb) -{ - /* The quota update from ocfs2_link_credits is unused here... */ - return 2 * OCFS2_INODE_UPDATE_CREDITS + 3 + ocfs2_link_credits(sb); -} - -/* dinode + orphan dir dinode + inode alloc dinode + orphan dir entry + - * inode alloc group descriptor + orphan dir index root + - * orphan dir index leaf */ -#define OCFS2_DELETE_INODE_CREDITS (3 * OCFS2_INODE_UPDATE_CREDITS + 4) - -/* dinode update, old dir dinode update, new dir dinode update, old - * dir dir entry, new dir dir entry, dir entry update for renaming - * directory + target unlink + 3 x dir index leaves */ -static inline int ocfs2_rename_credits(struct super_block *sb) -{ - return 3 * OCFS2_INODE_UPDATE_CREDITS + 6 + ocfs2_unlink_credits(sb); -} - -/* global bitmap dinode, group desc., relinked group, - * suballocator dinode, group desc., relinked group, - * dinode, xattr block */ -#define OCFS2_XATTR_BLOCK_CREATE_CREDITS (OCFS2_SUBALLOC_ALLOC * 2 + \ - + OCFS2_INODE_UPDATE_CREDITS \ - + OCFS2_XATTR_BLOCK_UPDATE_CREDITS) - -/* inode update, removal of dx root block from allocator */ -#define OCFS2_DX_ROOT_REMOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \ - OCFS2_SUBALLOC_FREE) - -static inline int ocfs2_calc_dxi_expand_credits(struct super_block *sb) -{ - int credits = 1 + OCFS2_SUBALLOC_ALLOC; - - credits += ocfs2_clusters_to_blocks(sb, 1); - credits += ocfs2_quota_trans_credits(sb); - - return credits; -} - -/* inode update, new refcount block and its allocation credits. */ -#define OCFS2_REFCOUNT_TREE_CREATE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1 \ - + OCFS2_SUBALLOC_ALLOC) - -/* inode and the refcount block update. */ -#define OCFS2_REFCOUNT_TREE_SET_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) - -/* - * inode and the refcount block update. - * It doesn't include the credits for sub alloc change. - * So if we need to free the bit, OCFS2_SUBALLOC_FREE needs to be added. - */ -#define OCFS2_REFCOUNT_TREE_REMOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) - -/* 2 metadata alloc, 2 new blocks and root refcount block */ -#define OCFS2_EXPAND_REFCOUNT_TREE_CREDITS (OCFS2_SUBALLOC_ALLOC * 2 + 3) - -/* - * Please note that the caller must make sure that root_el is the root - * of extent tree. So for an inode, it should be &fe->id2.i_list. Otherwise - * the result may be wrong. - */ -static inline int ocfs2_calc_extend_credits(struct super_block *sb, - struct ocfs2_extent_list *root_el, - u32 bits_wanted) -{ - int bitmap_blocks, sysfile_bitmap_blocks, extent_blocks; - - /* bitmap dinode, group desc. + relinked group. */ - bitmap_blocks = OCFS2_SUBALLOC_ALLOC; - - /* we might need to shift tree depth so lets assume an - * absolute worst case of complete fragmentation. Even with - * that, we only need one update for the dinode, and then - * however many metadata chunks needed * a remaining suballoc - * alloc. */ - sysfile_bitmap_blocks = 1 + - (OCFS2_SUBALLOC_ALLOC - 1) * ocfs2_extend_meta_needed(root_el); - - /* this does not include *new* metadata blocks, which are - * accounted for in sysfile_bitmap_blocks. root_el + - * prev. last_eb_blk + blocks along edge of tree. - * calc_symlink_credits passes because we just need 1 - * credit for the dinode there. */ - extent_blocks = 1 + 1 + le16_to_cpu(root_el->l_tree_depth); - - return bitmap_blocks + sysfile_bitmap_blocks + extent_blocks + - ocfs2_quota_trans_credits(sb); -} - -static inline int ocfs2_calc_symlink_credits(struct super_block *sb) -{ - int blocks = ocfs2_mknod_credits(sb, 0, 0); - - /* links can be longer than one block so we may update many - * within our single allocated extent. */ - blocks += ocfs2_clusters_to_blocks(sb, 1); - - return blocks + ocfs2_quota_trans_credits(sb); -} - -static inline int ocfs2_calc_group_alloc_credits(struct super_block *sb, - unsigned int cpg) -{ - int blocks; - int bitmap_blocks = OCFS2_SUBALLOC_ALLOC + 1; - /* parent inode update + new block group header + bitmap inode update - + bitmap blocks affected */ - blocks = 1 + 1 + 1 + bitmap_blocks; - return blocks; -} - -/* - * Allocating a discontiguous block group requires the credits from - * ocfs2_calc_group_alloc_credits() as well as enough credits to fill - * the group descriptor's extent list. The caller already has started - * the transaction with ocfs2_calc_group_alloc_credits(). They extend - * it with these credits. - */ -static inline int ocfs2_calc_bg_discontig_credits(struct super_block *sb) -{ - return ocfs2_extent_recs_per_gd(sb); -} - -static inline int ocfs2_calc_tree_trunc_credits(struct super_block *sb, - unsigned int clusters_to_del, - struct ocfs2_dinode *fe, - struct ocfs2_extent_list *last_el) -{ - /* for dinode + all headers in this pass + update to next leaf */ - u16 next_free = le16_to_cpu(last_el->l_next_free_rec); - u16 tree_depth = le16_to_cpu(fe->id2.i_list.l_tree_depth); - int credits = 1 + tree_depth + 1; - int i; - - i = next_free - 1; - BUG_ON(i < 0); - - /* We may be deleting metadata blocks, so metadata alloc dinode + - one desc. block for each possible delete. */ - if (tree_depth && next_free == 1 && - ocfs2_rec_clusters(last_el, &last_el->l_recs[i]) == clusters_to_del) - credits += 1 + tree_depth; - - /* update to the truncate log. */ - credits += OCFS2_TRUNCATE_LOG_UPDATE; - - credits += ocfs2_quota_trans_credits(sb); - - return credits; -} - -static inline int ocfs2_jbd2_file_inode(handle_t *handle, struct inode *inode) -{ - return jbd2_journal_file_inode(handle, &OCFS2_I(inode)->ip_jinode); -} - -static inline int ocfs2_begin_ordered_truncate(struct inode *inode, - loff_t new_size) -{ - return jbd2_journal_begin_ordered_truncate( - OCFS2_SB(inode->i_sb)->journal->j_journal, - &OCFS2_I(inode)->ip_jinode, - new_size); -} - -#endif /* OCFS2_JOURNAL_H */ |