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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748/* SPDX-License-Identifier: GPL-2.0+ *//* * NILFS B-tree node cache * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * * Written by Seiji Kihara. * Revised by Ryusuke Konishi. */
#ifndef _NILFS_BTNODE_H#define _NILFS_BTNODE_H
#include <linux/types.h>#include <linux/buffer_head.h>#include <linux/fs.h>#include <linux/backing-dev.h>
/** * struct nilfs_btnode_chkey_ctxt - change key context * @oldkey: old key of block's moving content * @newkey: new key for block's content * @bh: buffer head of old buffer * @newbh: buffer head of new buffer */struct nilfs_btnode_chkey_ctxt { __u64 oldkey; __u64 newkey; struct buffer_head *bh; struct buffer_head *newbh;};
void nilfs_init_btnc_inode(struct inode *btnc_inode);void nilfs_btnode_cache_clear(struct address_space *);struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr);int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, blk_opf_t, struct buffer_head **, sector_t *);void nilfs_btnode_delete(struct buffer_head *);int nilfs_btnode_prepare_change_key(struct address_space *, struct nilfs_btnode_chkey_ctxt *);void nilfs_btnode_commit_change_key(struct address_space *, struct nilfs_btnode_chkey_ctxt *);void nilfs_btnode_abort_change_key(struct address_space *, struct nilfs_btnode_chkey_ctxt *);
#endif /* _NILFS_BTNODE_H */