| 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
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| 2 | /* |
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| 3 | * NILFS inode file |
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| 4 | * |
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| 5 | * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. |
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| 6 | * |
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| 7 | * Written by Amagai Yoshiji. |
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| 8 | * Revised by Ryusuke Konishi. |
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| 9 | * |
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| 10 | */ |
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| 11 | |
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| 12 | #ifndef _NILFS_IFILE_H |
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| 13 | #define _NILFS_IFILE_H |
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| 14 | |
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| 15 | #include <linux/fs.h> |
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| 16 | #include <linux/buffer_head.h> |
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| 17 | #include "mdt.h" |
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| 18 | #include "alloc.h" |
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| 19 | |
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| 20 | |
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| 21 | static inline struct nilfs_inode * |
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| 22 | nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh) |
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| 23 | { |
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| 24 | void *kaddr = kmap(page: ibh->b_page); |
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| 25 | |
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| 26 | return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr); |
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| 27 | } |
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| 28 | |
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| 29 | static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino, |
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| 30 | struct buffer_head *ibh) |
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| 31 | { |
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| 32 | kunmap(page: ibh->b_page); |
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| 33 | } |
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| 34 | |
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| 35 | int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **); |
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| 36 | int nilfs_ifile_delete_inode(struct inode *, ino_t); |
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| 37 | int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **); |
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| 38 | |
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| 39 | int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *); |
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| 40 | |
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| 41 | int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root, |
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| 42 | size_t inode_size, struct nilfs_inode *raw_inode, |
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| 43 | struct inode **inodep); |
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| 44 | |
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| 45 | #endif /* _NILFS_IFILE_H */ |
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| 46 | |
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