1 /* 2 * Copyright (C) 2008 Oracle. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public 6 * License v2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public 14 * License along with this program; if not, write to the 15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 16 * Boston, MA 021110-1307, USA. 17 */ 18 19 #ifndef __TREE_LOG_ 20 #define __TREE_LOG_ 21 22 /* return value for btrfs_log_dentry_safe that means we don't need to log it at all */ 23 #define BTRFS_NO_LOG_SYNC 256 24 25 struct btrfs_log_ctx { 26 int log_ret; 27 struct list_head list; 28 }; 29 30 static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx) 31 { 32 ctx->log_ret = 0; 33 INIT_LIST_HEAD(&ctx->list); 34 } 35 36 int btrfs_sync_log(struct btrfs_trans_handle *trans, 37 struct btrfs_root *root, struct btrfs_log_ctx *ctx); 38 int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root); 39 int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, 40 struct btrfs_fs_info *fs_info); 41 int btrfs_recover_log_trees(struct btrfs_root *tree_root); 42 int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans, 43 struct btrfs_root *root, struct dentry *dentry, 44 struct btrfs_log_ctx *ctx); 45 int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans, 46 struct btrfs_root *root, 47 const char *name, int name_len, 48 struct inode *dir, u64 index); 49 int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans, 50 struct btrfs_root *root, 51 const char *name, int name_len, 52 struct inode *inode, u64 dirid); 53 void btrfs_end_log_trans(struct btrfs_root *root); 54 int btrfs_pin_log_trans(struct btrfs_root *root); 55 void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans, 56 struct inode *dir, struct inode *inode, 57 int for_rename); 58 int btrfs_log_new_name(struct btrfs_trans_handle *trans, 59 struct inode *inode, struct inode *old_dir, 60 struct dentry *parent); 61 #endif 62