diff options
Diffstat (limited to 'fs/nilfs2/alloc.h')
| -rw-r--r-- | fs/nilfs2/alloc.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/nilfs2/alloc.h b/fs/nilfs2/alloc.h index 0303c3968cee..046d876ea3e0 100644 --- a/fs/nilfs2/alloc.h +++ b/fs/nilfs2/alloc.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * alloc.h - persistent object (dat entry/disk inode) allocator/deallocator + * Persistent object (dat entry/disk inode) allocator/deallocator * * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation. * @@ -21,6 +21,8 @@ * * The number of entries per group is defined by the number of bits * that a bitmap block can maintain. + * + * Return: Number of entries per group. */ static inline unsigned long nilfs_palloc_entries_per_group(const struct inode *inode) @@ -31,13 +33,13 @@ nilfs_palloc_entries_per_group(const struct inode *inode) int nilfs_palloc_init_blockgroup(struct inode *, unsigned int); int nilfs_palloc_get_entry_block(struct inode *, __u64, int, struct buffer_head **); -void *nilfs_palloc_block_get_entry(const struct inode *, __u64, - const struct buffer_head *, void *); +size_t nilfs_palloc_entry_offset(const struct inode *inode, __u64 nr, + const struct buffer_head *bh); int nilfs_palloc_count_max_entries(struct inode *, u64, u64 *); /** - * nilfs_palloc_req - persistent allocator request and reply + * struct nilfs_palloc_req - persistent allocator request and reply * @pr_entry_nr: entry number (vblocknr or inode number) * @pr_desc_bh: buffer head of the buffer containing block group descriptors * @pr_bitmap_bh: buffer head of the buffer containing a block group bitmap @@ -50,8 +52,8 @@ struct nilfs_palloc_req { struct buffer_head *pr_entry_bh; }; -int nilfs_palloc_prepare_alloc_entry(struct inode *, - struct nilfs_palloc_req *); +int nilfs_palloc_prepare_alloc_entry(struct inode *inode, + struct nilfs_palloc_req *req, bool wrap); void nilfs_palloc_commit_alloc_entry(struct inode *, struct nilfs_palloc_req *); void nilfs_palloc_abort_alloc_entry(struct inode *, struct nilfs_palloc_req *); |