| /* | |
| * linux/include/linux/ext3_fs_sb.h | |
| * | |
| * Copyright (C) 1992, 1993, 1994, 1995 | |
| * Remy Card (card@masi.ibp.fr) | |
| * Laboratoire MASI - Institut Blaise Pascal | |
| * Universite Pierre et Marie Curie (Paris VI) | |
| * | |
| * from | |
| * | |
| * linux/include/linux/minix_fs_sb.h | |
| * | |
| * Copyright (C) 1991, 1992 Linus Torvalds | |
| */ | |
| #ifndef _LINUX_EXT3_FS_SB | |
| #define _LINUX_EXT3_FS_SB | |
| #ifdef __KERNEL__ | |
| #include <linux/timer.h> | |
| #include <linux/wait.h> | |
| #include <linux/blockgroup_lock.h> | |
| #include <linux/percpu_counter.h> | |
| #endif | |
| #include <linux/rbtree.h> | |
| /* | |
| * third extended-fs super-block data in memory | |
| */ | |
| struct ext3_sb_info { | |
| unsigned long s_frag_size; /* Size of a fragment in bytes */ | |
| unsigned long s_frags_per_block;/* Number of fragments per block */ | |
| unsigned long s_inodes_per_block;/* Number of inodes per block */ | |
| unsigned long s_frags_per_group;/* Number of fragments in a group */ | |
| unsigned long s_blocks_per_group;/* Number of blocks in a group */ | |
| unsigned long s_inodes_per_group;/* Number of inodes in a group */ | |
| unsigned long s_itb_per_group; /* Number of inode table blocks per group */ | |
| unsigned long s_gdb_count; /* Number of group descriptor blocks */ | |
| unsigned long s_desc_per_block; /* Number of group descriptors per block */ | |
| unsigned long s_groups_count; /* Number of groups in the fs */ | |
| unsigned long s_overhead_last; /* Last calculated overhead */ | |
| unsigned long s_blocks_last; /* Last seen block count */ | |
| struct buffer_head * s_sbh; /* Buffer containing the super block */ | |
| struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */ | |
| struct buffer_head ** s_group_desc; | |
| unsigned long s_mount_opt; | |
| ext3_fsblk_t s_sb_block; | |
| uid_t s_resuid; | |
| gid_t s_resgid; | |
| unsigned short s_mount_state; | |
| unsigned short s_pad; | |
| int s_addr_per_block_bits; | |
| int s_desc_per_block_bits; | |
| int s_inode_size; | |
| int s_first_ino; | |
| spinlock_t s_next_gen_lock; | |
| u32 s_next_generation; | |
| u32 s_hash_seed[4]; | |
| int s_def_hash_version; | |
| struct percpu_counter s_freeblocks_counter; | |
| struct percpu_counter s_freeinodes_counter; | |
| struct percpu_counter s_dirs_counter; | |
| struct blockgroup_lock s_blockgroup_lock; | |
| /* root of the per fs reservation window tree */ | |
| spinlock_t s_rsv_window_lock; | |
| struct rb_root s_rsv_window_root; | |
| struct ext3_reserve_window_node s_rsv_window_head; | |
| /* Journaling */ | |
| struct inode * s_journal_inode; | |
| struct journal_s * s_journal; | |
| struct list_head s_orphan; | |
| unsigned long s_commit_interval; | |
| struct block_device *journal_bdev; | |
| #ifdef CONFIG_JBD_DEBUG | |
| struct timer_list turn_ro_timer; /* For turning read-only (crash simulation) */ | |
| wait_queue_head_t ro_wait_queue; /* For people waiting for the fs to go read-only */ | |
| #endif | |
| #ifdef CONFIG_QUOTA | |
| char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */ | |
| int s_jquota_fmt; /* Format of quota to use */ | |
| #endif | |
| }; | |
| #endif /* _LINUX_EXT3_FS_SB */ |