19888c340SDavid Sterba /* SPDX-License-Identifier: GPL-2.0 */
2e02119d5SChris Mason /*
3e02119d5SChris Mason * Copyright (C) 2008 Oracle. All rights reserved.
4e02119d5SChris Mason */
5e02119d5SChris Mason
69888c340SDavid Sterba #ifndef BTRFS_TREE_LOG_H
79888c340SDavid Sterba #define BTRFS_TREE_LOG_H
8e02119d5SChris Mason
99b569ea0SJosef Bacik #include "messages.h"
10995946ddSMiao Xie #include "ctree.h"
11995946ddSMiao Xie #include "transaction.h"
12995946ddSMiao Xie
13257c62e1SChris Mason /* return value for btrfs_log_dentry_safe that means we don't need to log it at all */
14257c62e1SChris Mason #define BTRFS_NO_LOG_SYNC 256
15257c62e1SChris Mason
165cce1780SFilipe Manana /*
175cce1780SFilipe Manana * We can't use the tree log for whatever reason, force a transaction commit.
185cce1780SFilipe Manana * We use a negative value because there are functions through the logging code
195cce1780SFilipe Manana * that need to return an error (< 0 value), false (0) or true (1). Any negative
205cce1780SFilipe Manana * value will do, as it will cause the log to be marked for a full sync.
215cce1780SFilipe Manana */
225cce1780SFilipe Manana #define BTRFS_LOG_FORCE_COMMIT (-(MAX_ERRNO + 1))
23f31f09f6SJosef Bacik
248b050d35SMiao Xie struct btrfs_log_ctx {
258b050d35SMiao Xie int log_ret;
26d1433debSMiao Xie int log_transid;
272f2ff0eeSFilipe Manana bool log_new_dentries;
2875b463d2SFilipe Manana bool logging_new_name;
2930b80f3cSFilipe Manana bool logging_new_delayed_dentries;
300f8ce498SFilipe Manana /* Indicate if the inode being logged was logged before. */
310f8ce498SFilipe Manana bool logged_before;
3228a23593SFilipe Manana struct inode *inode;
338b050d35SMiao Xie struct list_head list;
3448778179SFilipe Manana /* Only used for fast fsyncs. */
3548778179SFilipe Manana struct list_head ordered_extents;
36e09d94c9SFilipe Manana struct list_head conflict_inodes;
37e09d94c9SFilipe Manana int num_conflict_inodes;
38e09d94c9SFilipe Manana bool logging_conflict_inodes;
398b050d35SMiao Xie };
408b050d35SMiao Xie
btrfs_init_log_ctx(struct btrfs_log_ctx * ctx,struct inode * inode)4128a23593SFilipe Manana static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx,
4228a23593SFilipe Manana struct inode *inode)
438b050d35SMiao Xie {
448b050d35SMiao Xie ctx->log_ret = 0;
45d1433debSMiao Xie ctx->log_transid = 0;
462f2ff0eeSFilipe Manana ctx->log_new_dentries = false;
4775b463d2SFilipe Manana ctx->logging_new_name = false;
4830b80f3cSFilipe Manana ctx->logging_new_delayed_dentries = false;
490f8ce498SFilipe Manana ctx->logged_before = false;
5028a23593SFilipe Manana ctx->inode = inode;
518b050d35SMiao Xie INIT_LIST_HEAD(&ctx->list);
5248778179SFilipe Manana INIT_LIST_HEAD(&ctx->ordered_extents);
53e09d94c9SFilipe Manana INIT_LIST_HEAD(&ctx->conflict_inodes);
54e09d94c9SFilipe Manana ctx->num_conflict_inodes = 0;
55e09d94c9SFilipe Manana ctx->logging_conflict_inodes = false;
5648778179SFilipe Manana }
5748778179SFilipe Manana
btrfs_release_log_ctx_extents(struct btrfs_log_ctx * ctx)5848778179SFilipe Manana static inline void btrfs_release_log_ctx_extents(struct btrfs_log_ctx *ctx)
5948778179SFilipe Manana {
6048778179SFilipe Manana struct btrfs_ordered_extent *ordered;
6148778179SFilipe Manana struct btrfs_ordered_extent *tmp;
6248778179SFilipe Manana
6348778179SFilipe Manana ASSERT(inode_is_locked(ctx->inode));
6448778179SFilipe Manana
6548778179SFilipe Manana list_for_each_entry_safe(ordered, tmp, &ctx->ordered_extents, log_list) {
6648778179SFilipe Manana list_del_init(&ordered->log_list);
6748778179SFilipe Manana btrfs_put_ordered_extent(ordered);
6848778179SFilipe Manana }
698b050d35SMiao Xie }
708b050d35SMiao Xie
btrfs_set_log_full_commit(struct btrfs_trans_handle * trans)7190787766SDavid Sterba static inline void btrfs_set_log_full_commit(struct btrfs_trans_handle *trans)
72995946ddSMiao Xie {
7390787766SDavid Sterba WRITE_ONCE(trans->fs_info->last_trans_log_full_commit, trans->transid);
74995946ddSMiao Xie }
75995946ddSMiao Xie
btrfs_need_log_full_commit(struct btrfs_trans_handle * trans)764884b8e8SDavid Sterba static inline int btrfs_need_log_full_commit(struct btrfs_trans_handle *trans)
77995946ddSMiao Xie {
784884b8e8SDavid Sterba return READ_ONCE(trans->fs_info->last_trans_log_full_commit) ==
79995946ddSMiao Xie trans->transid;
80995946ddSMiao Xie }
81995946ddSMiao Xie
82e02119d5SChris Mason int btrfs_sync_log(struct btrfs_trans_handle *trans,
838b050d35SMiao Xie struct btrfs_root *root, struct btrfs_log_ctx *ctx);
84e02119d5SChris Mason int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);
854a500fd1SYan, Zheng int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
864a500fd1SYan, Zheng struct btrfs_fs_info *fs_info);
87e02119d5SChris Mason int btrfs_recover_log_trees(struct btrfs_root *tree_root);
88e02119d5SChris Mason int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
89e5b84f7aSNikolay Borisov struct dentry *dentry,
908b050d35SMiao Xie struct btrfs_log_ctx *ctx);
919a35fc95SJosef Bacik void btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
92e02119d5SChris Mason struct btrfs_root *root,
936db75318SSweet Tea Dorminy const struct fscrypt_str *name,
9449f34d1fSNikolay Borisov struct btrfs_inode *dir, u64 index);
959a35fc95SJosef Bacik void btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
96e02119d5SChris Mason struct btrfs_root *root,
976db75318SSweet Tea Dorminy const struct fscrypt_str *name,
98a491abb2SNikolay Borisov struct btrfs_inode *inode, u64 dirid);
99143bede5SJeff Mahoney void btrfs_end_log_trans(struct btrfs_root *root);
10045128b08Szhong jiang void btrfs_pin_log_trans(struct btrfs_root *root);
10112fcfd22SChris Mason void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
1024176bdbfSNikolay Borisov struct btrfs_inode *dir, struct btrfs_inode *inode,
103*59fcf388SFilipe Manana bool for_rename);
1041ec9a1aeSFilipe Manana void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
10543663557SNikolay Borisov struct btrfs_inode *dir);
10675b463d2SFilipe Manana void btrfs_log_new_name(struct btrfs_trans_handle *trans,
107d5f5bd54SFilipe Manana struct dentry *old_dentry, struct btrfs_inode *old_dir,
10888d2beecSFilipe Manana u64 old_dir_index, struct dentry *parent);
1099888c340SDavid Sterba
110e02119d5SChris Mason #endif
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