cregit-Linux how code gets into the kernel

Release 4.10 fs/ocfs2/journal.h

Directory: fs/ocfs2
/* -*- 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
 * 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.



#include <linux/fs.h>
#include <linux/jbd2.h>

enum ocfs2_journal_state {

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; }


mark fashehmark fasheh55100.00%1100.00%

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); }


mark fashehmark fasheh3286.49%133.33%
joel beckerjoel becker513.51%266.67%

/* 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; }


mark fashehmark fasheh4984.48%133.33%
joel beckerjoel becker915.52%266.67%

/* 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; }


mark fashehmark fasheh5373.61%133.33%
joel beckerjoel becker1926.39%266.67%

/* 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)); }


joel beckerjoel becker36100.00%1100.00%

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); }


mark fashehmark fasheh3487.18%133.33%
joel beckerjoel becker512.82%266.67%

/* 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) { wake_up(&osb->checkpoint_event); }


mark fashehmark fasheh20100.00%1100.00%

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))); } }


mark fashehmark fasheh5175.00%125.00%
sunil mushransunil mushran811.76%125.00%
joel beckerjoel becker811.76%125.00%
lucas de marchilucas de marchi11.47%125.00%

/* * 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); int ocfs2_allocate_extend_trans(handle_t *handle, int thresh); /* * Define an arbitrary limit for the amount of data we will anticipate * writing to any given transaction. For unbounded transactions such as * fallocate(2) we can write more than this, but we always * start off at the maximum transaction size and grow the transaction * optimistically as we go. */ #define OCFS2_MAX_TRANS_DATA 64U /* * 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; }


jan karajan kara46100.00%1100.00%

/* 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); }


jan karajan kara22100.00%1100.00%

/* 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); }


jan karajan kara22100.00%1100.00%

/* 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); }


mark fashehmark fasheh27100.00%1100.00%

/* 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); }


mark fashehmark fasheh2654.17%150.00%
jan karajan kara2245.83%150.00%

/* 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); }


jan karajan kara2395.83%150.00%

/* 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); }


jan karajan kara2496.00%150.00%
mark fashehmark fasheh14.00%150.00%

/* 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 + orphan dir dinode + extent tree leaf block + orphan dir entry + * orphan dir index root + orphan dir index leaf */ #define OCFS2_INODE_ADD_TO_ORPHAN_CREDITS (2 * OCFS2_INODE_UPDATE_CREDITS + 4) #define OCFS2_INODE_DEL_FROM_ORPHAN_CREDITS OCFS2_INODE_ADD_TO_ORPHAN_CREDITS /* 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); }


jan karajan kara2395.83%150.00%
mark fashehmark fasheh14.17%150.00%

/* 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; }


mark fashehmark fasheh38100.00%1100.00%

/* 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) { 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); }


mark fashehmark fasheh5881.69%133.33%
tao matao ma811.27%133.33%
jan karajan kara57.04%133.33%

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); }


mark fashehmark fasheh3378.57%266.67%
jan karajan kara921.43%133.33%

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; }


mark fashehmark fasheh40100.00%1100.00%

/* * 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); }


joel beckerjoel becker18100.00%1100.00%

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; }


mark fashehmark fasheh11494.21%266.67%
jan karajan kara75.79%133.33%

static inline int ocfs2_jbd2_file_inode(handle_t *handle, struct inode *inode) { return jbd2_journal_inode_add_write(handle, &OCFS2_I(inode)->ip_jinode); }


joel beckerjoel becker2996.67%150.00%
jan karajan kara13.33%150.00%

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); }


joel beckerjoel becker2972.50%150.00%
jan karajan kara1127.50%150.00%

static inline void ocfs2_update_inode_fsync_trans(handle_t *handle, struct inode *inode, int datasync) { struct ocfs2_inode_info *oi = OCFS2_I(inode); oi->i_sync_tid = handle->h_transaction->t_tid; if (datasync) oi->i_datasync_tid = handle->h_transaction->t_tid; }


darrick j. wongdarrick j. wong53100.00%1100.00%

#endif /* OCFS2_JOURNAL_H */

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goldwyn rodriguesgoldwyn rodrigues40.22%12.27%
david howellsdavid howells30.17%12.27%
lucas de marchilucas de marchi10.06%12.27%
Directory: fs/ocfs2
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