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96 lines
2.6 KiB
96 lines
2.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef BTRFS_INODE_ITEM_H |
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#define BTRFS_INODE_ITEM_H |
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#include <linux/types.h> |
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struct btrfs_trans_handle; |
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struct btrfs_root; |
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struct btrfs_path; |
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struct btrfs_key; |
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struct btrfs_inode_extref; |
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struct btrfs_inode; |
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struct extent_buffer; |
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/* |
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* Return this if we need to call truncate_block for the last bit of the |
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* truncate. |
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*/ |
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#define BTRFS_NEED_TRUNCATE_BLOCK 1 |
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struct btrfs_truncate_control { |
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/* |
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* IN: the inode we're operating on, this can be NULL if |
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* ->clear_extent_range is false. |
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*/ |
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struct btrfs_inode *inode; |
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/* IN: the size we're truncating to. */ |
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u64 new_size; |
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/* OUT: the number of extents truncated. */ |
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u64 extents_found; |
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/* OUT: the last size we truncated this inode to. */ |
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u64 last_size; |
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/* OUT: the number of bytes to sub from this inode. */ |
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u64 sub_bytes; |
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/* IN: the ino we are truncating. */ |
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u64 ino; |
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/* |
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* IN: minimum key type to remove. All key types with this type are |
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* removed only if their offset >= new_size. |
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*/ |
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u32 min_type; |
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/* |
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* IN: true if we don't want to do extent reference updates for any file |
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* extents we drop. |
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*/ |
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bool skip_ref_updates; |
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/* |
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* IN: true if we need to clear the file extent range for the inode as |
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* we drop the file extent items. |
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*/ |
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bool clear_extent_range; |
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}; |
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int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, |
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struct btrfs_root *root, |
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struct btrfs_truncate_control *control); |
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int btrfs_insert_inode_ref(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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u64 inode_objectid, u64 ref_objectid, u64 index); |
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int btrfs_del_inode_ref(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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u64 inode_objectid, u64 ref_objectid, u64 *index); |
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int btrfs_insert_empty_inode(struct btrfs_trans_handle *trans, |
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struct btrfs_root *root, |
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struct btrfs_path *path, u64 objectid); |
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int btrfs_lookup_inode(struct btrfs_trans_handle *trans, struct btrfs_root |
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*root, struct btrfs_path *path, |
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struct btrfs_key *location, int mod); |
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struct btrfs_inode_extref *btrfs_lookup_inode_extref( |
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struct btrfs_trans_handle *trans, |
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struct btrfs_root *root, |
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struct btrfs_path *path, |
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const char *name, int name_len, |
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u64 inode_objectid, u64 ref_objectid, int ins_len, |
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int cow); |
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struct btrfs_inode_ref *btrfs_find_name_in_backref(struct extent_buffer *leaf, |
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int slot, const char *name, |
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int name_len); |
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struct btrfs_inode_extref *btrfs_find_name_in_ext_backref( |
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struct extent_buffer *leaf, int slot, u64 ref_objectid, |
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const char *name, int name_len); |
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#endif
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