[linux.git] / include / linux / ext2_fs_sb.h

/*
 *  linux/include/linux/ext2_fs_sb.h
 *
 * Copyright (C) 1992, 1993, 1994, 1995
 * Remy Card ([email protected])
 * 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_EXT2_FS_SB
#define _LINUX_EXT2_FS_SB

#include <linux/blockgroup_lock.h>
#include <linux/percpu_counter.h>

/*
 * second extended-fs super-block data in memory
 */
struct ext2_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 */
	struct buffer_head * s_sbh;	/* Buffer containing the super block */
	struct ext2_super_block * s_es;	/* Pointer to the super block in the buffer */
	struct buffer_head ** s_group_desc;
	unsigned long  s_mount_opt;
	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;
	unsigned long s_dir_count;
	u8 *s_debts;
	struct percpu_counter s_freeblocks_counter;
	struct percpu_counter s_freeinodes_counter;
	struct percpu_counter s_dirs_counter;
	struct blockgroup_lock s_blockgroup_lock;
};

#endif	/* _LINUX_EXT2_FS_SB */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/linux/ext2_fs_sb.h
	3	*
	4	* Copyright (C) 1992, 1993, 1994, 1995
	5	* Remy Card ([email protected])
	6	* Laboratoire MASI - Institut Blaise Pascal
	7	* Universite Pierre et Marie Curie (Paris VI)
	8	*
	9	* from
	10	*
	11	* linux/include/linux/minix_fs_sb.h
	12	*
	13	* Copyright (C) 1991, 1992 Linus Torvalds
	14	*/
	15
	16	#ifndef _LINUX_EXT2_FS_SB
	17	#define _LINUX_EXT2_FS_SB
	18
	19	#include <linux/blockgroup_lock.h>
	20	#include <linux/percpu_counter.h>
	21
	22	/*
	23	* second extended-fs super-block data in memory
	24	*/
	25	struct ext2_sb_info {
	26	unsigned long s_frag_size; /* Size of a fragment in bytes */
	27	unsigned long s_frags_per_block;/* Number of fragments per block */
	28	unsigned long s_inodes_per_block;/* Number of inodes per block */
	29	unsigned long s_frags_per_group;/* Number of fragments in a group */
	30	unsigned long s_blocks_per_group;/* Number of blocks in a group */
	31	unsigned long s_inodes_per_group;/* Number of inodes in a group */
	32	unsigned long s_itb_per_group; /* Number of inode table blocks per group */
	33	unsigned long s_gdb_count; /* Number of group descriptor blocks */
	34	unsigned long s_desc_per_block; /* Number of group descriptors per block */
	35	unsigned long s_groups_count; /* Number of groups in the fs */
	36	struct buffer_head * s_sbh; /* Buffer containing the super block */
	37	struct ext2_super_block * s_es; /* Pointer to the super block in the buffer */
	38	struct buffer_head ** s_group_desc;
	39	unsigned long s_mount_opt;
	40	uid_t s_resuid;
	41	gid_t s_resgid;
	42	unsigned short s_mount_state;
	43	unsigned short s_pad;
	44	int s_addr_per_block_bits;
	45	int s_desc_per_block_bits;
	46	int s_inode_size;
	47	int s_first_ino;
	48	spinlock_t s_next_gen_lock;
	49	u32 s_next_generation;
	50	unsigned long s_dir_count;
	51	u8 *s_debts;
	52	struct percpu_counter s_freeblocks_counter;
	53	struct percpu_counter s_freeinodes_counter;
	54	struct percpu_counter s_dirs_counter;
	55	struct blockgroup_lock s_blockgroup_lock;
	56	};
	57
	58	#endif /* _LINUX_EXT2_FS_SB */