disk-io.h (dfe8aec4520bff8e69c8704421ef7f47c65ca778) disk-io.h (29cbcf401793f4e2c871c846edc2191731df2c41)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2007 Oracle. All rights reserved.
4 */
5
6#ifndef BTRFS_DISK_IO_H
7#define BTRFS_DISK_IO_H
8

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98{
99 if (!root)
100 return NULL;
101 if (refcount_inc_not_zero(&root->refs))
102 return root;
103 return NULL;
104}
105
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2007 Oracle. All rights reserved.
4 */
5
6#ifndef BTRFS_DISK_IO_H
7#define BTRFS_DISK_IO_H
8

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98{
99 if (!root)
100 return NULL;
101 if (refcount_inc_not_zero(&root->refs))
102 return root;
103 return NULL;
104}
105
106static inline struct btrfs_root *btrfs_extent_root(struct btrfs_fs_info *fs_info,
107 u64 bytenr)
108{
109 return fs_info->_extent_root;
110}
111
106static inline struct btrfs_root *btrfs_block_group_root(struct btrfs_fs_info *fs_info)
107{
112static inline struct btrfs_root *btrfs_block_group_root(struct btrfs_fs_info *fs_info)
113{
108 return fs_info->extent_root;
114 return btrfs_extent_root(fs_info, 0);
109}
110
111void btrfs_put_root(struct btrfs_root *root);
112void btrfs_mark_buffer_dirty(struct extent_buffer *buf);
113int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
114 int atomic);
115int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid, int level,
116 struct btrfs_key *first_key);

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116
117void btrfs_put_root(struct btrfs_root *root);
118void btrfs_mark_buffer_dirty(struct extent_buffer *buf);
119int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
120 int atomic);
121int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid, int level,
122 struct btrfs_key *first_key);

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