forked from Minki/linux
6d4cbf7903
The io_err field of struct btrfs_log_ctx is no longer used after the recent simplification of the fast fsync path, where we now wait for ordered extents to complete before logging the inode. We did this in commitb5e6c3e170("btrfs: always wait on ordered extents at fsync time") and commita2120a473a("btrfs: clean up the left over logged_list usage") removed its last use. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2008 Oracle. All rights reserved.
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*/
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#ifndef BTRFS_TREE_LOG_H
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#define BTRFS_TREE_LOG_H
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#include "ctree.h"
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#include "transaction.h"
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/* return value for btrfs_log_dentry_safe that means we don't need to log it at all */
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#define BTRFS_NO_LOG_SYNC 256
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struct btrfs_log_ctx {
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int log_ret;
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int log_transid;
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bool log_new_dentries;
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struct inode *inode;
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struct list_head list;
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};
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static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx,
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struct inode *inode)
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{
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ctx->log_ret = 0;
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ctx->log_transid = 0;
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ctx->log_new_dentries = false;
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ctx->inode = inode;
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INIT_LIST_HEAD(&ctx->list);
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}
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static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
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struct btrfs_trans_handle *trans)
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{
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WRITE_ONCE(fs_info->last_trans_log_full_commit, trans->transid);
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}
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static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
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struct btrfs_trans_handle *trans)
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{
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return READ_ONCE(fs_info->last_trans_log_full_commit) ==
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trans->transid;
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}
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int btrfs_sync_log(struct btrfs_trans_handle *trans,
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struct btrfs_root *root, struct btrfs_log_ctx *ctx);
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int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);
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int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
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struct btrfs_fs_info *fs_info);
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int btrfs_recover_log_trees(struct btrfs_root *tree_root);
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int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
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struct dentry *dentry,
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const loff_t start,
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const loff_t end,
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struct btrfs_log_ctx *ctx);
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int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
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struct btrfs_root *root,
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const char *name, int name_len,
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struct btrfs_inode *dir, u64 index);
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int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
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struct btrfs_root *root,
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const char *name, int name_len,
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struct btrfs_inode *inode, u64 dirid);
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void btrfs_end_log_trans(struct btrfs_root *root);
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void btrfs_pin_log_trans(struct btrfs_root *root);
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void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
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struct btrfs_inode *dir, struct btrfs_inode *inode,
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int for_rename);
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void btrfs_record_snapshot_destroy(struct btrfs_trans_handle *trans,
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struct btrfs_inode *dir);
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/* Return values for btrfs_log_new_name() */
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enum {
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BTRFS_DONT_NEED_TRANS_COMMIT,
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BTRFS_NEED_TRANS_COMMIT,
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BTRFS_DONT_NEED_LOG_SYNC,
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BTRFS_NEED_LOG_SYNC,
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};
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int btrfs_log_new_name(struct btrfs_trans_handle *trans,
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struct btrfs_inode *inode, struct btrfs_inode *old_dir,
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struct dentry *parent,
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bool sync_log, struct btrfs_log_ctx *ctx);
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#endif
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