Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2008 Oracle.  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #ifndef BTRFS_TREE_LOG_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define BTRFS_TREE_LOG_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include "ctree.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "transaction.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /* return value for btrfs_log_dentry_safe that means we don't need to log it at all */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define BTRFS_NO_LOG_SYNC 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct btrfs_log_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	int log_ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	int log_transid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	bool log_new_dentries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	bool logging_new_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	/* Only used for fast fsyncs. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	struct list_head ordered_extents;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 				      struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	ctx->log_ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	ctx->log_transid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	ctx->log_new_dentries = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	ctx->logging_new_name = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	ctx->inode = inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	INIT_LIST_HEAD(&ctx->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	INIT_LIST_HEAD(&ctx->ordered_extents);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static inline void btrfs_release_log_ctx_extents(struct btrfs_log_ctx *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	struct btrfs_ordered_extent *ordered;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	struct btrfs_ordered_extent *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	ASSERT(inode_is_locked(ctx->inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	list_for_each_entry_safe(ordered, tmp, &ctx->ordered_extents, log_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		list_del_init(&ordered->log_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		btrfs_put_ordered_extent(ordered);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static inline void btrfs_set_log_full_commit(struct btrfs_trans_handle *trans)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	WRITE_ONCE(trans->fs_info->last_trans_log_full_commit, trans->transid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static inline int btrfs_need_log_full_commit(struct btrfs_trans_handle *trans)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	return READ_ONCE(trans->fs_info->last_trans_log_full_commit) ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		trans->transid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) int btrfs_sync_log(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 		   struct btrfs_root *root, struct btrfs_log_ctx *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 			     struct btrfs_fs_info *fs_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) int btrfs_recover_log_trees(struct btrfs_root *tree_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 			  struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 			  struct btrfs_log_ctx *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 				 struct btrfs_root *root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 				 const char *name, int name_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 				 struct btrfs_inode *dir, u64 index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 			       struct btrfs_root *root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 			       const char *name, int name_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 			       struct btrfs_inode *inode, u64 dirid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) void btrfs_end_log_trans(struct btrfs_root *root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) void btrfs_pin_log_trans(struct btrfs_root *root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 			     struct btrfs_inode *dir, struct btrfs_inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 			     int for_rename);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 				   struct btrfs_inode *dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) void btrfs_log_new_name(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 			struct btrfs_inode *inode, struct btrfs_inode *old_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 			struct dentry *parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) #endif