diff options
Diffstat (limited to 'fs/ext2/ext2.h')
| -rw-r--r-- | fs/ext2/ext2.h | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h index a08052d2c00..7730388c493 100644 --- a/fs/ext2/ext2.h +++ b/fs/ext2/ext2.h @@ -33,22 +33,9 @@ struct ext2_inode_info { */ __u32 i_block_group; - /* - * i_next_alloc_block is the logical (file-relative) number of the - * most-recently-allocated block in this file. Yes, it is misnamed. - * We use this for detecting linearly ascending allocation requests. - */ - __u32 i_next_alloc_block; + /* block reservation info */ + struct ext2_block_alloc_info *i_block_alloc_info; - /* - * i_next_alloc_goal is the *physical* companion to i_next_alloc_block. - * it the the physical block number of the block which was most-recently - * allocated to this file. This give us the goal (target) for the next - * allocation when we detect linearly ascending requests. - */ - __u32 i_next_alloc_goal; - __u32 i_prealloc_block; - __u32 i_prealloc_count; __u32 i_dir_start_lookup; #ifdef CONFIG_EXT2_FS_XATTR /* @@ -65,7 +52,16 @@ struct ext2_inode_info { struct posix_acl *i_default_acl; #endif rwlock_t i_meta_lock; + + /* + * truncate_mutex is for serialising ext2_truncate() against + * ext2_getblock(). It also protects the internals of the inode's + * reservation data structures: ext2_reserve_window and + * ext2_reserve_window_node. + */ + struct mutex truncate_mutex; struct inode vfs_inode; + struct list_head i_orphan; /* unlinked but open inodes */ }; /* @@ -91,8 +87,9 @@ static inline struct ext2_inode_info *EXT2_I(struct inode *inode) /* balloc.c */ extern int ext2_bg_has_super(struct super_block *sb, int group); extern unsigned long ext2_bg_num_gdb(struct super_block *sb, int group); -extern int ext2_new_block (struct inode *, unsigned long, - __u32 *, __u32 *, int *); +extern ext2_fsblk_t ext2_new_block(struct inode *, unsigned long, int *); +extern ext2_fsblk_t ext2_new_blocks(struct inode *, unsigned long, + unsigned long *, int *); extern void ext2_free_blocks (struct inode *, unsigned long, unsigned long); extern unsigned long ext2_count_free_blocks (struct super_block *); @@ -101,6 +98,10 @@ extern void ext2_check_blocks_bitmap (struct super_block *); extern struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb, unsigned int block_group, struct buffer_head ** bh); +extern void ext2_discard_reservation (struct inode *); +extern int ext2_should_retry_alloc(struct super_block *sb, int *retries); +extern void ext2_init_block_alloc_info(struct inode *); +extern void ext2_rsv_window_add(struct super_block *sb, struct ext2_reserve_window_node *rsv); /* dir.c */ extern int ext2_add_link (struct dentry *, struct inode *); @@ -128,7 +129,6 @@ extern int ext2_write_inode (struct inode *, int); extern void ext2_put_inode (struct inode *); extern void ext2_delete_inode (struct inode *); extern int ext2_sync_inode (struct inode *); -extern void ext2_discard_prealloc (struct inode *); extern int ext2_get_block(struct inode *, sector_t, struct buffer_head *, int); extern void ext2_truncate (struct inode *); extern int ext2_setattr (struct dentry *, struct iattr *); |