ext3: move headers to fs/ext3/

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 980 deletions

diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
deleted file mode 100644
index f5a84eef..0000000
--- a/include/linux/ext3_fs.h
+++ /dev/null
@@ -1,980 +0,0 @@
-/*
- *  linux/include/linux/ext3_fs.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.h
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- */
-
-#ifndef _LINUX_EXT3_FS_H
-#define _LINUX_EXT3_FS_H
-
-#include <linux/types.h>
-#include <linux/magic.h>
-#include <linux/bug.h>
-
-/*
- * The second extended filesystem constants/structures
- */
-
-/*
- * Define EXT3FS_DEBUG to produce debug messages
- */
-#undef EXT3FS_DEBUG
-
-/*
- * Define EXT3_RESERVATION to reserve data blocks for expanding files
- */
-#define EXT3_DEFAULT_RESERVE_BLOCKS     8
-/*max window size: 1024(direct blocks) + 3([t,d]indirect blocks) */
-#define EXT3_MAX_RESERVE_BLOCKS         1027
-#define EXT3_RESERVE_WINDOW_NOT_ALLOCATED 0
-
-/*
- * Debug code
- */
-#ifdef EXT3FS_DEBUG
-#define ext3_debug(f, a...)						\
-	do {								\
-		printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:",	\
-			__FILE__, __LINE__, __func__);		\
-		printk (KERN_DEBUG f, ## a);				\
-	} while (0)
-#else
-#define ext3_debug(f, a...)	do {} while (0)
-#endif
-
-/*
- * Special inodes numbers
- */
-#define	EXT3_BAD_INO		 1	/* Bad blocks inode */
-#define EXT3_ROOT_INO		 2	/* Root inode */
-#define EXT3_BOOT_LOADER_INO	 5	/* Boot loader inode */
-#define EXT3_UNDEL_DIR_INO	 6	/* Undelete directory inode */
-#define EXT3_RESIZE_INO		 7	/* Reserved group descriptors inode */
-#define EXT3_JOURNAL_INO	 8	/* Journal inode */
-
-/* First non-reserved inode for old ext3 filesystems */
-#define EXT3_GOOD_OLD_FIRST_INO	11
-
-/*
- * Maximal count of links to a file
- */
-#define EXT3_LINK_MAX		32000
-
-/*
- * Macro-instructions used to manage several block sizes
- */
-#define EXT3_MIN_BLOCK_SIZE		1024
-#define	EXT3_MAX_BLOCK_SIZE		65536
-#define EXT3_MIN_BLOCK_LOG_SIZE		10
-#ifdef __KERNEL__
-# define EXT3_BLOCK_SIZE(s)		((s)->s_blocksize)
-#else
-# define EXT3_BLOCK_SIZE(s)		(EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size)
-#endif
-#define	EXT3_ADDR_PER_BLOCK(s)		(EXT3_BLOCK_SIZE(s) / sizeof (__u32))
-#ifdef __KERNEL__
-# define EXT3_BLOCK_SIZE_BITS(s)	((s)->s_blocksize_bits)
-#else
-# define EXT3_BLOCK_SIZE_BITS(s)	((s)->s_log_block_size + 10)
-#endif
-#ifdef __KERNEL__
-#define	EXT3_ADDR_PER_BLOCK_BITS(s)	(EXT3_SB(s)->s_addr_per_block_bits)
-#define EXT3_INODE_SIZE(s)		(EXT3_SB(s)->s_inode_size)
-#define EXT3_FIRST_INO(s)		(EXT3_SB(s)->s_first_ino)
-#else
-#define EXT3_INODE_SIZE(s)	(((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
-				 EXT3_GOOD_OLD_INODE_SIZE : \
-				 (s)->s_inode_size)
-#define EXT3_FIRST_INO(s)	(((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
-				 EXT3_GOOD_OLD_FIRST_INO : \
-				 (s)->s_first_ino)
-#endif
-
-/*
- * Macro-instructions used to manage fragments
- */
-#define EXT3_MIN_FRAG_SIZE		1024
-#define	EXT3_MAX_FRAG_SIZE		4096
-#define EXT3_MIN_FRAG_LOG_SIZE		  10
-#ifdef __KERNEL__
-# define EXT3_FRAG_SIZE(s)		(EXT3_SB(s)->s_frag_size)
-# define EXT3_FRAGS_PER_BLOCK(s)	(EXT3_SB(s)->s_frags_per_block)
-#else
-# define EXT3_FRAG_SIZE(s)		(EXT3_MIN_FRAG_SIZE << (s)->s_log_frag_size)
-# define EXT3_FRAGS_PER_BLOCK(s)	(EXT3_BLOCK_SIZE(s) / EXT3_FRAG_SIZE(s))
-#endif
-
-/*
- * Structure of a blocks group descriptor
- */
-struct ext3_group_desc
-{
-	__le32	bg_block_bitmap;		/* Blocks bitmap block */
-	__le32	bg_inode_bitmap;		/* Inodes bitmap block */
-	__le32	bg_inode_table;		/* Inodes table block */
-	__le16	bg_free_blocks_count;	/* Free blocks count */
-	__le16	bg_free_inodes_count;	/* Free inodes count */
-	__le16	bg_used_dirs_count;	/* Directories count */
-	__u16	bg_pad;
-	__le32	bg_reserved[3];
-};
-
-/*
- * Macro-instructions used to manage group descriptors
- */
-#ifdef __KERNEL__
-# define EXT3_BLOCKS_PER_GROUP(s)	(EXT3_SB(s)->s_blocks_per_group)
-# define EXT3_DESC_PER_BLOCK(s)		(EXT3_SB(s)->s_desc_per_block)
-# define EXT3_INODES_PER_GROUP(s)	(EXT3_SB(s)->s_inodes_per_group)
-# define EXT3_DESC_PER_BLOCK_BITS(s)	(EXT3_SB(s)->s_desc_per_block_bits)
-#else
-# define EXT3_BLOCKS_PER_GROUP(s)	((s)->s_blocks_per_group)
-# define EXT3_DESC_PER_BLOCK(s)		(EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_group_desc))
-# define EXT3_INODES_PER_GROUP(s)	((s)->s_inodes_per_group)
-#endif
-
-/*
- * Constants relative to the data blocks
- */
-#define	EXT3_NDIR_BLOCKS		12
-#define	EXT3_IND_BLOCK			EXT3_NDIR_BLOCKS
-#define	EXT3_DIND_BLOCK			(EXT3_IND_BLOCK + 1)
-#define	EXT3_TIND_BLOCK			(EXT3_DIND_BLOCK + 1)
-#define	EXT3_N_BLOCKS			(EXT3_TIND_BLOCK + 1)
-
-/*
- * Inode flags
- */
-#define	EXT3_SECRM_FL			0x00000001 /* Secure deletion */
-#define	EXT3_UNRM_FL			0x00000002 /* Undelete */
-#define	EXT3_COMPR_FL			0x00000004 /* Compress file */
-#define EXT3_SYNC_FL			0x00000008 /* Synchronous updates */
-#define EXT3_IMMUTABLE_FL		0x00000010 /* Immutable file */
-#define EXT3_APPEND_FL			0x00000020 /* writes to file may only append */
-#define EXT3_NODUMP_FL			0x00000040 /* do not dump file */
-#define EXT3_NOATIME_FL			0x00000080 /* do not update atime */
-/* Reserved for compression usage... */
-#define EXT3_DIRTY_FL			0x00000100
-#define EXT3_COMPRBLK_FL		0x00000200 /* One or more compressed clusters */
-#define EXT3_NOCOMPR_FL			0x00000400 /* Don't compress */
-#define EXT3_ECOMPR_FL			0x00000800 /* Compression error */
-/* End compression flags --- maybe not all used */
-#define EXT3_INDEX_FL			0x00001000 /* hash-indexed directory */
-#define EXT3_IMAGIC_FL			0x00002000 /* AFS directory */
-#define EXT3_JOURNAL_DATA_FL		0x00004000 /* file data should be journaled */
-#define EXT3_NOTAIL_FL			0x00008000 /* file tail should not be merged */
-#define EXT3_DIRSYNC_FL			0x00010000 /* dirsync behaviour (directories only) */
-#define EXT3_TOPDIR_FL			0x00020000 /* Top of directory hierarchies*/
-#define EXT3_RESERVED_FL		0x80000000 /* reserved for ext3 lib */
-
-#define EXT3_FL_USER_VISIBLE		0x0003DFFF /* User visible flags */
-#define EXT3_FL_USER_MODIFIABLE		0x000380FF /* User modifiable flags */
-
-/* Flags that should be inherited by new inodes from their parent. */
-#define EXT3_FL_INHERITED (EXT3_SECRM_FL | EXT3_UNRM_FL | EXT3_COMPR_FL |\
-			   EXT3_SYNC_FL | EXT3_NODUMP_FL |\
-			   EXT3_NOATIME_FL | EXT3_COMPRBLK_FL |\
-			   EXT3_NOCOMPR_FL | EXT3_JOURNAL_DATA_FL |\
-			   EXT3_NOTAIL_FL | EXT3_DIRSYNC_FL)
-
-/* Flags that are appropriate for regular files (all but dir-specific ones). */
-#define EXT3_REG_FLMASK (~(EXT3_DIRSYNC_FL | EXT3_TOPDIR_FL))
-
-/* Flags that are appropriate for non-directories/regular files. */
-#define EXT3_OTHER_FLMASK (EXT3_NODUMP_FL | EXT3_NOATIME_FL)
-
-/* Mask out flags that are inappropriate for the given type of inode. */
-static inline __u32 ext3_mask_flags(umode_t mode, __u32 flags)
-{
-	if (S_ISDIR(mode))
-		return flags;
-	else if (S_ISREG(mode))
-		return flags & EXT3_REG_FLMASK;
-	else
-		return flags & EXT3_OTHER_FLMASK;
-}
-
-/* Used to pass group descriptor data when online resize is done */
-struct ext3_new_group_input {
-	__u32 group;            /* Group number for this data */
-	__u32 block_bitmap;     /* Absolute block number of block bitmap */
-	__u32 inode_bitmap;     /* Absolute block number of inode bitmap */
-	__u32 inode_table;      /* Absolute block number of inode table start */
-	__u32 blocks_count;     /* Total number of blocks in this group */
-	__u16 reserved_blocks;  /* Number of reserved blocks in this group */
-	__u16 unused;
-};
-
-/* The struct ext3_new_group_input in kernel space, with free_blocks_count */
-struct ext3_new_group_data {
-	__u32 group;
-	__u32 block_bitmap;
-	__u32 inode_bitmap;
-	__u32 inode_table;
-	__u32 blocks_count;
-	__u16 reserved_blocks;
-	__u16 unused;
-	__u32 free_blocks_count;
-};
-
-
-/*
- * ioctl commands
- */
-#define	EXT3_IOC_GETFLAGS		FS_IOC_GETFLAGS
-#define	EXT3_IOC_SETFLAGS		FS_IOC_SETFLAGS
-#define	EXT3_IOC_GETVERSION		_IOR('f', 3, long)
-#define	EXT3_IOC_SETVERSION		_IOW('f', 4, long)
-#define EXT3_IOC_GROUP_EXTEND		_IOW('f', 7, unsigned long)
-#define EXT3_IOC_GROUP_ADD		_IOW('f', 8,struct ext3_new_group_input)
-#define	EXT3_IOC_GETVERSION_OLD		FS_IOC_GETVERSION
-#define	EXT3_IOC_SETVERSION_OLD		FS_IOC_SETVERSION
-#ifdef CONFIG_JBD_DEBUG
-#define EXT3_IOC_WAIT_FOR_READONLY	_IOR('f', 99, long)
-#endif
-#define EXT3_IOC_GETRSVSZ		_IOR('f', 5, long)
-#define EXT3_IOC_SETRSVSZ		_IOW('f', 6, long)
-
-/*
- * ioctl commands in 32 bit emulation
- */
-#define EXT3_IOC32_GETFLAGS		FS_IOC32_GETFLAGS
-#define EXT3_IOC32_SETFLAGS		FS_IOC32_SETFLAGS
-#define EXT3_IOC32_GETVERSION		_IOR('f', 3, int)
-#define EXT3_IOC32_SETVERSION		_IOW('f', 4, int)
-#define EXT3_IOC32_GETRSVSZ		_IOR('f', 5, int)
-#define EXT3_IOC32_SETRSVSZ		_IOW('f', 6, int)
-#define EXT3_IOC32_GROUP_EXTEND		_IOW('f', 7, unsigned int)
-#ifdef CONFIG_JBD_DEBUG
-#define EXT3_IOC32_WAIT_FOR_READONLY	_IOR('f', 99, int)
-#endif
-#define EXT3_IOC32_GETVERSION_OLD	FS_IOC32_GETVERSION
-#define EXT3_IOC32_SETVERSION_OLD	FS_IOC32_SETVERSION
-
-
-/*
- *  Mount options
- */
-struct ext3_mount_options {
-	unsigned long s_mount_opt;
-	uid_t s_resuid;
-	gid_t s_resgid;
-	unsigned long s_commit_interval;
-#ifdef CONFIG_QUOTA
-	int s_jquota_fmt;
-	char *s_qf_names[MAXQUOTAS];
-#endif
-};
-
-/*
- * Structure of an inode on the disk
- */
-struct ext3_inode {
-	__le16	i_mode;		/* File mode */
-	__le16	i_uid;		/* Low 16 bits of Owner Uid */
-	__le32	i_size;		/* Size in bytes */
-	__le32	i_atime;	/* Access time */
-	__le32	i_ctime;	/* Creation time */
-	__le32	i_mtime;	/* Modification time */
-	__le32	i_dtime;	/* Deletion Time */
-	__le16	i_gid;		/* Low 16 bits of Group Id */
-	__le16	i_links_count;	/* Links count */
-	__le32	i_blocks;	/* Blocks count */
-	__le32	i_flags;	/* File flags */
-	union {
-		struct {
-			__u32  l_i_reserved1;
-		} linux1;
-		struct {
-			__u32  h_i_translator;
-		} hurd1;
-		struct {
-			__u32  m_i_reserved1;
-		} masix1;
-	} osd1;				/* OS dependent 1 */
-	__le32	i_block[EXT3_N_BLOCKS];/* Pointers to blocks */
-	__le32	i_generation;	/* File version (for NFS) */
-	__le32	i_file_acl;	/* File ACL */
-	__le32	i_dir_acl;	/* Directory ACL */
-	__le32	i_faddr;	/* Fragment address */
-	union {
-		struct {
-			__u8	l_i_frag;	/* Fragment number */
-			__u8	l_i_fsize;	/* Fragment size */
-			__u16	i_pad1;
-			__le16	l_i_uid_high;	/* these 2 fields    */
-			__le16	l_i_gid_high;	/* were reserved2[0] */
-			__u32	l_i_reserved2;
-		} linux2;
-		struct {
-			__u8	h_i_frag;	/* Fragment number */
-			__u8	h_i_fsize;	/* Fragment size */
-			__u16	h_i_mode_high;
-			__u16	h_i_uid_high;
-			__u16	h_i_gid_high;
-			__u32	h_i_author;
-		} hurd2;
-		struct {
-			__u8	m_i_frag;	/* Fragment number */
-			__u8	m_i_fsize;	/* Fragment size */
-			__u16	m_pad1;
-			__u32	m_i_reserved2[2];
-		} masix2;
-	} osd2;				/* OS dependent 2 */
-	__le16	i_extra_isize;
-	__le16	i_pad1;
-};
-
-#define i_size_high	i_dir_acl
-
-#if defined(__KERNEL__) || defined(__linux__)
-#define i_reserved1	osd1.linux1.l_i_reserved1
-#define i_frag		osd2.linux2.l_i_frag
-#define i_fsize		osd2.linux2.l_i_fsize
-#define i_uid_low	i_uid
-#define i_gid_low	i_gid
-#define i_uid_high	osd2.linux2.l_i_uid_high
-#define i_gid_high	osd2.linux2.l_i_gid_high
-#define i_reserved2	osd2.linux2.l_i_reserved2
-
-#elif defined(__GNU__)
-
-#define i_translator	osd1.hurd1.h_i_translator
-#define i_frag		osd2.hurd2.h_i_frag;
-#define i_fsize		osd2.hurd2.h_i_fsize;
-#define i_uid_high	osd2.hurd2.h_i_uid_high
-#define i_gid_high	osd2.hurd2.h_i_gid_high
-#define i_author	osd2.hurd2.h_i_author
-
-#elif defined(__masix__)
-
-#define i_reserved1	osd1.masix1.m_i_reserved1
-#define i_frag		osd2.masix2.m_i_frag
-#define i_fsize		osd2.masix2.m_i_fsize
-#define i_reserved2	osd2.masix2.m_i_reserved2
-
-#endif /* defined(__KERNEL__) || defined(__linux__) */
-
-/*
- * File system states
- */
-#define	EXT3_VALID_FS			0x0001	/* Unmounted cleanly */
-#define	EXT3_ERROR_FS			0x0002	/* Errors detected */
-#define	EXT3_ORPHAN_FS			0x0004	/* Orphans being recovered */
-
-/*
- * Misc. filesystem flags
- */
-#define EXT2_FLAGS_SIGNED_HASH		0x0001  /* Signed dirhash in use */
-#define EXT2_FLAGS_UNSIGNED_HASH	0x0002  /* Unsigned dirhash in use */
-#define EXT2_FLAGS_TEST_FILESYS		0x0004	/* to test development code */
-
-/*
- * Mount flags
- */
-#define EXT3_MOUNT_CHECK		0x00001	/* Do mount-time checks */
-/* EXT3_MOUNT_OLDALLOC was there */
-#define EXT3_MOUNT_GRPID		0x00004	/* Create files with directory's group */
-#define EXT3_MOUNT_DEBUG		0x00008	/* Some debugging messages */
-#define EXT3_MOUNT_ERRORS_CONT		0x00010	/* Continue on errors */
-#define EXT3_MOUNT_ERRORS_RO		0x00020	/* Remount fs ro on errors */
-#define EXT3_MOUNT_ERRORS_PANIC		0x00040	/* Panic on errors */
-#define EXT3_MOUNT_MINIX_DF		0x00080	/* Mimics the Minix statfs */
-#define EXT3_MOUNT_NOLOAD		0x00100	/* Don't use existing journal*/
-#define EXT3_MOUNT_ABORT		0x00200	/* Fatal error detected */
-#define EXT3_MOUNT_DATA_FLAGS		0x00C00	/* Mode for data writes: */
-#define EXT3_MOUNT_JOURNAL_DATA		0x00400	/* Write data to journal */
-#define EXT3_MOUNT_ORDERED_DATA		0x00800	/* Flush data before commit */
-#define EXT3_MOUNT_WRITEBACK_DATA	0x00C00	/* No data ordering */
-#define EXT3_MOUNT_UPDATE_JOURNAL	0x01000	/* Update the journal format */
-#define EXT3_MOUNT_NO_UID32		0x02000  /* Disable 32-bit UIDs */
-#define EXT3_MOUNT_XATTR_USER		0x04000	/* Extended user attributes */
-#define EXT3_MOUNT_POSIX_ACL		0x08000	/* POSIX Access Control Lists */
-#define EXT3_MOUNT_RESERVATION		0x10000	/* Preallocation */
-#define EXT3_MOUNT_BARRIER		0x20000 /* Use block barriers */
-#define EXT3_MOUNT_QUOTA		0x80000 /* Some quota option set */
-#define EXT3_MOUNT_USRQUOTA		0x100000 /* "old" user quota */
-#define EXT3_MOUNT_GRPQUOTA		0x200000 /* "old" group quota */
-#define EXT3_MOUNT_DATA_ERR_ABORT	0x400000 /* Abort on file data write
-						  * error in ordered mode */
-
-/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
-#ifndef _LINUX_EXT2_FS_H
-#define clear_opt(o, opt)		o &= ~EXT3_MOUNT_##opt
-#define set_opt(o, opt)			o |= EXT3_MOUNT_##opt
-#define test_opt(sb, opt)		(EXT3_SB(sb)->s_mount_opt & \
-					 EXT3_MOUNT_##opt)
-#else
-#define EXT2_MOUNT_NOLOAD		EXT3_MOUNT_NOLOAD
-#define EXT2_MOUNT_ABORT		EXT3_MOUNT_ABORT
-#define EXT2_MOUNT_DATA_FLAGS		EXT3_MOUNT_DATA_FLAGS
-#endif
-
-#define ext3_set_bit			__set_bit_le
-#define ext3_set_bit_atomic		ext2_set_bit_atomic
-#define ext3_clear_bit			__clear_bit_le
-#define ext3_clear_bit_atomic		ext2_clear_bit_atomic
-#define ext3_test_bit			test_bit_le
-#define ext3_find_next_zero_bit		find_next_zero_bit_le
-
-/*
- * Maximal mount counts between two filesystem checks
- */
-#define EXT3_DFL_MAX_MNT_COUNT		20	/* Allow 20 mounts */
-#define EXT3_DFL_CHECKINTERVAL		0	/* Don't use interval check */
-
-/*
- * Behaviour when detecting errors
- */
-#define EXT3_ERRORS_CONTINUE		1	/* Continue execution */
-#define EXT3_ERRORS_RO			2	/* Remount fs read-only */
-#define EXT3_ERRORS_PANIC		3	/* Panic */
-#define EXT3_ERRORS_DEFAULT		EXT3_ERRORS_CONTINUE
-
-/*
- * Structure of the super block
- */
-struct ext3_super_block {
-/*00*/	__le32	s_inodes_count;		/* Inodes count */
-	__le32	s_blocks_count;		/* Blocks count */
-	__le32	s_r_blocks_count;	/* Reserved blocks count */
-	__le32	s_free_blocks_count;	/* Free blocks count */
-/*10*/	__le32	s_free_inodes_count;	/* Free inodes count */
-	__le32	s_first_data_block;	/* First Data Block */
-	__le32	s_log_block_size;	/* Block size */
-	__le32	s_log_frag_size;	/* Fragment size */
-/*20*/	__le32	s_blocks_per_group;	/* # Blocks per group */
-	__le32	s_frags_per_group;	/* # Fragments per group */
-	__le32	s_inodes_per_group;	/* # Inodes per group */
-	__le32	s_mtime;		/* Mount time */
-/*30*/	__le32	s_wtime;		/* Write time */
-	__le16	s_mnt_count;		/* Mount count */
-	__le16	s_max_mnt_count;	/* Maximal mount count */
-	__le16	s_magic;		/* Magic signature */
-	__le16	s_state;		/* File system state */
-	__le16	s_errors;		/* Behaviour when detecting errors */
-	__le16	s_minor_rev_level;	/* minor revision level */
-/*40*/	__le32	s_lastcheck;		/* time of last check */
-	__le32	s_checkinterval;	/* max. time between checks */
-	__le32	s_creator_os;		/* OS */
-	__le32	s_rev_level;		/* Revision level */
-/*50*/	__le16	s_def_resuid;		/* Default uid for reserved blocks */
-	__le16	s_def_resgid;		/* Default gid for reserved blocks */
-	/*
-	 * These fields are for EXT3_DYNAMIC_REV superblocks only.
-	 *
-	 * Note: the difference between the compatible feature set and
-	 * the incompatible feature set is that if there is a bit set
-	 * in the incompatible feature set that the kernel doesn't
-	 * know about, it should refuse to mount the filesystem.
-	 *
-	 * e2fsck's requirements are more strict; if it doesn't know
-	 * about a feature in either the compatible or incompatible
-	 * feature set, it must abort and not try to meddle with
-	 * things it doesn't understand...
-	 */
-	__le32	s_first_ino;		/* First non-reserved inode */
-	__le16   s_inode_size;		/* size of inode structure */
-	__le16	s_block_group_nr;	/* block group # of this superblock */
-	__le32	s_feature_compat;	/* compatible feature set */
-/*60*/	__le32	s_feature_incompat;	/* incompatible feature set */
-	__le32	s_feature_ro_compat;	/* readonly-compatible feature set */
-/*68*/	__u8	s_uuid[16];		/* 128-bit uuid for volume */
-/*78*/	char	s_volume_name[16];	/* volume name */
-/*88*/	char	s_last_mounted[64];	/* directory where last mounted */
-/*C8*/	__le32	s_algorithm_usage_bitmap; /* For compression */
-	/*
-	 * Performance hints.  Directory preallocation should only
-	 * happen if the EXT3_FEATURE_COMPAT_DIR_PREALLOC flag is on.
-	 */
-	__u8	s_prealloc_blocks;	/* Nr of blocks to try to preallocate*/
-	__u8	s_prealloc_dir_blocks;	/* Nr to preallocate for dirs */
-	__le16	s_reserved_gdt_blocks;	/* Per group desc for online growth */
-	/*
-	 * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set.
-	 */
-/*D0*/	__u8	s_journal_uuid[16];	/* uuid of journal superblock */
-/*E0*/	__le32	s_journal_inum;		/* inode number of journal file */
-	__le32	s_journal_dev;		/* device number of journal file */
-	__le32	s_last_orphan;		/* start of list of inodes to delete */
-	__le32	s_hash_seed[4];		/* HTREE hash seed */
-	__u8	s_def_hash_version;	/* Default hash version to use */
-	__u8	s_reserved_char_pad;
-	__u16	s_reserved_word_pad;
-	__le32	s_default_mount_opts;
-	__le32	s_first_meta_bg;	/* First metablock block group */
-	__le32	s_mkfs_time;		/* When the filesystem was created */
-	__le32	s_jnl_blocks[17];	/* Backup of the journal inode */
-	/* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
-/*150*/	__le32	s_blocks_count_hi;	/* Blocks count */
-	__le32	s_r_blocks_count_hi;	/* Reserved blocks count */
-	__le32	s_free_blocks_count_hi;	/* Free blocks count */
-	__le16	s_min_extra_isize;	/* All inodes have at least # bytes */
-	__le16	s_want_extra_isize; 	/* New inodes should reserve # bytes */
-	__le32	s_flags;		/* Miscellaneous flags */
-	__le16  s_raid_stride;		/* RAID stride */
-	__le16  s_mmp_interval;         /* # seconds to wait in MMP checking */
-	__le64  s_mmp_block;            /* Block for multi-mount protection */
-	__le32  s_raid_stripe_width;    /* blocks on all data disks (N*stride)*/
-	__u8	s_log_groups_per_flex;  /* FLEX_BG group size */
-	__u8	s_reserved_char_pad2;
-	__le16  s_reserved_pad;
-	__u32   s_reserved[162];        /* Padding to the end of the block */
-};
-
-#ifdef __KERNEL__
-#include <linux/ext3_fs_i.h>
-#include <linux/ext3_fs_sb.h>
-static inline struct ext3_sb_info * EXT3_SB(struct super_block *sb)
-{
-	return sb->s_fs_info;
-}
-static inline struct ext3_inode_info *EXT3_I(struct inode *inode)
-{
-	return container_of(inode, struct ext3_inode_info, vfs_inode);
-}
-
-static inline int ext3_valid_inum(struct super_block *sb, unsigned long ino)
-{
-	return ino == EXT3_ROOT_INO ||
-		ino == EXT3_JOURNAL_INO ||
-		ino == EXT3_RESIZE_INO ||
-		(ino >= EXT3_FIRST_INO(sb) &&
-		 ino <= le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count));
-}
-
-/*
- * Inode dynamic state flags
- */
-enum {
-	EXT3_STATE_JDATA,		/* journaled data exists */
-	EXT3_STATE_NEW,			/* inode is newly created */
-	EXT3_STATE_XATTR,		/* has in-inode xattrs */
-	EXT3_STATE_FLUSH_ON_CLOSE,	/* flush dirty pages on close */
-};
-
-static inline int ext3_test_inode_state(struct inode *inode, int bit)
-{
-	return test_bit(bit, &EXT3_I(inode)->i_state_flags);
-}
-
-static inline void ext3_set_inode_state(struct inode *inode, int bit)
-{
-	set_bit(bit, &EXT3_I(inode)->i_state_flags);
-}
-
-static inline void ext3_clear_inode_state(struct inode *inode, int bit)
-{
-	clear_bit(bit, &EXT3_I(inode)->i_state_flags);
-}
-#else
-/* Assume that user mode programs are passing in an ext3fs superblock, not
- * a kernel struct super_block.  This will allow us to call the feature-test
- * macros from user land. */
-#define EXT3_SB(sb)	(sb)
-#endif
-
-#define NEXT_ORPHAN(inode) EXT3_I(inode)->i_dtime
-
-/*
- * Codes for operating systems
- */
-#define EXT3_OS_LINUX		0
-#define EXT3_OS_HURD		1
-#define EXT3_OS_MASIX		2
-#define EXT3_OS_FREEBSD		3
-#define EXT3_OS_LITES		4
-
-/*
- * Revision levels
- */
-#define EXT3_GOOD_OLD_REV	0	/* The good old (original) format */
-#define EXT3_DYNAMIC_REV	1	/* V2 format w/ dynamic inode sizes */
-
-#define EXT3_CURRENT_REV	EXT3_GOOD_OLD_REV
-#define EXT3_MAX_SUPP_REV	EXT3_DYNAMIC_REV
-
-#define EXT3_GOOD_OLD_INODE_SIZE 128
-
-/*
- * Feature set definitions
- */
-
-#define EXT3_HAS_COMPAT_FEATURE(sb,mask)			\
-	( EXT3_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
-#define EXT3_HAS_RO_COMPAT_FEATURE(sb,mask)			\
-	( EXT3_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
-#define EXT3_HAS_INCOMPAT_FEATURE(sb,mask)			\
-	( EXT3_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
-#define EXT3_SET_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
-#define EXT3_SET_RO_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
-#define EXT3_SET_INCOMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
-#define EXT3_CLEAR_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
-#define EXT3_CLEAR_RO_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
-#define EXT3_CLEAR_INCOMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
-
-#define EXT3_FEATURE_COMPAT_DIR_PREALLOC	0x0001
-#define EXT3_FEATURE_COMPAT_IMAGIC_INODES	0x0002
-#define EXT3_FEATURE_COMPAT_HAS_JOURNAL		0x0004
-#define EXT3_FEATURE_COMPAT_EXT_ATTR		0x0008
-#define EXT3_FEATURE_COMPAT_RESIZE_INODE	0x0010
-#define EXT3_FEATURE_COMPAT_DIR_INDEX		0x0020
-
-#define EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER	0x0001
-#define EXT3_FEATURE_RO_COMPAT_LARGE_FILE	0x0002
-#define EXT3_FEATURE_RO_COMPAT_BTREE_DIR	0x0004
-
-#define EXT3_FEATURE_INCOMPAT_COMPRESSION	0x0001
-#define EXT3_FEATURE_INCOMPAT_FILETYPE		0x0002
-#define EXT3_FEATURE_INCOMPAT_RECOVER		0x0004 /* Needs recovery */
-#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV	0x0008 /* Journal device */
-#define EXT3_FEATURE_INCOMPAT_META_BG		0x0010
-
-#define EXT3_FEATURE_COMPAT_SUPP	EXT2_FEATURE_COMPAT_EXT_ATTR
-#define EXT3_FEATURE_INCOMPAT_SUPP	(EXT3_FEATURE_INCOMPAT_FILETYPE| \
-					 EXT3_FEATURE_INCOMPAT_RECOVER| \
-					 EXT3_FEATURE_INCOMPAT_META_BG)
-#define EXT3_FEATURE_RO_COMPAT_SUPP	(EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER| \
-					 EXT3_FEATURE_RO_COMPAT_LARGE_FILE| \
-					 EXT3_FEATURE_RO_COMPAT_BTREE_DIR)
-
-/*
- * Default values for user and/or group using reserved blocks
- */
-#define	EXT3_DEF_RESUID		0
-#define	EXT3_DEF_RESGID		0
-
-/*
- * Default mount options
- */
-#define EXT3_DEFM_DEBUG		0x0001
-#define EXT3_DEFM_BSDGROUPS	0x0002
-#define EXT3_DEFM_XATTR_USER	0x0004
-#define EXT3_DEFM_ACL		0x0008
-#define EXT3_DEFM_UID16		0x0010
-#define EXT3_DEFM_JMODE		0x0060
-#define EXT3_DEFM_JMODE_DATA	0x0020
-#define EXT3_DEFM_JMODE_ORDERED	0x0040
-#define EXT3_DEFM_JMODE_WBACK	0x0060
-
-/*
- * Structure of a directory entry
- */
-#define EXT3_NAME_LEN 255
-
-struct ext3_dir_entry {
-	__le32	inode;			/* Inode number */
-	__le16	rec_len;		/* Directory entry length */
-	__le16	name_len;		/* Name length */
-	char	name[EXT3_NAME_LEN];	/* File name */
-};
-
-/*
- * The new version of the directory entry.  Since EXT3 structures are
- * stored in intel byte order, and the name_len field could never be
- * bigger than 255 chars, it's safe to reclaim the extra byte for the
- * file_type field.
- */
-struct ext3_dir_entry_2 {
-	__le32	inode;			/* Inode number */
-	__le16	rec_len;		/* Directory entry length */
-	__u8	name_len;		/* Name length */
-	__u8	file_type;
-	char	name[EXT3_NAME_LEN];	/* File name */
-};
-
-/*
- * Ext3 directory file types.  Only the low 3 bits are used.  The
- * other bits are reserved for now.
- */
-#define EXT3_FT_UNKNOWN		0
-#define EXT3_FT_REG_FILE	1
-#define EXT3_FT_DIR		2
-#define EXT3_FT_CHRDEV		3
-#define EXT3_FT_BLKDEV		4
-#define EXT3_FT_FIFO		5
-#define EXT3_FT_SOCK		6
-#define EXT3_FT_SYMLINK		7
-
-#define EXT3_FT_MAX		8
-
-/*
- * EXT3_DIR_PAD defines the directory entries boundaries
- *
- * NOTE: It must be a multiple of 4
- */
-#define EXT3_DIR_PAD			4
-#define EXT3_DIR_ROUND			(EXT3_DIR_PAD - 1)
-#define EXT3_DIR_REC_LEN(name_len)	(((name_len) + 8 + EXT3_DIR_ROUND) & \
-					 ~EXT3_DIR_ROUND)
-#define EXT3_MAX_REC_LEN		((1<<16)-1)
-
-/*
- * Tests against MAX_REC_LEN etc were put in place for 64k block
- * sizes; if that is not possible on this arch, we can skip
- * those tests and speed things up.
- */
-static inline unsigned ext3_rec_len_from_disk(__le16 dlen)
-{
-	unsigned len = le16_to_cpu(dlen);
-
-#if (PAGE_CACHE_SIZE >= 65536)
-	if (len == EXT3_MAX_REC_LEN)
-		return 1 << 16;
-#endif
-	return len;
-}
-
-static inline __le16 ext3_rec_len_to_disk(unsigned len)
-{
-#if (PAGE_CACHE_SIZE >= 65536)
-	if (len == (1 << 16))
-		return cpu_to_le16(EXT3_MAX_REC_LEN);
-	else if (len > (1 << 16))
-		BUG();
-#endif
-	return cpu_to_le16(len);
-}
-
-/*
- * Hash Tree Directory indexing
- * (c) Daniel Phillips, 2001
- */
-
-#define is_dx(dir) (EXT3_HAS_COMPAT_FEATURE(dir->i_sb, \
-				      EXT3_FEATURE_COMPAT_DIR_INDEX) && \
-		      (EXT3_I(dir)->i_flags & EXT3_INDEX_FL))
-#define EXT3_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT3_LINK_MAX)
-#define EXT3_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
-
-/* Legal values for the dx_root hash_version field: */
-
-#define DX_HASH_LEGACY		0
-#define DX_HASH_HALF_MD4	1
-#define DX_HASH_TEA		2
-#define DX_HASH_LEGACY_UNSIGNED	3
-#define DX_HASH_HALF_MD4_UNSIGNED	4
-#define DX_HASH_TEA_UNSIGNED		5
-
-#ifdef __KERNEL__
-
-/* hash info structure used by the directory hash */
-struct dx_hash_info
-{
-	u32		hash;
-	u32		minor_hash;
-	int		hash_version;
-	u32		*seed;
-};
-
-#define EXT3_HTREE_EOF	0x7fffffff
-
-/*
- * Control parameters used by ext3_htree_next_block
- */
-#define HASH_NB_ALWAYS		1
-
-
-/*
- * Describe an inode's exact location on disk and in memory
- */
-struct ext3_iloc
-{
-	struct buffer_head *bh;
-	unsigned long offset;
-	unsigned long block_group;
-};
-
-static inline struct ext3_inode *ext3_raw_inode(struct ext3_iloc *iloc)
-{
-	return (struct ext3_inode *) (iloc->bh->b_data + iloc->offset);
-}
-
-/*
- * This structure is stuffed into the struct file's private_data field
- * for directories.  It is where we put information so that we can do
- * readdir operations in hash tree order.
- */
-struct dir_private_info {
-	struct rb_root	root;
-	struct rb_node	*curr_node;
-	struct fname	*extra_fname;
-	loff_t		last_pos;
-	__u32		curr_hash;
-	__u32		curr_minor_hash;
-	__u32		next_hash;
-};
-
-/* calculate the first block number of the group */
-static inline ext3_fsblk_t
-ext3_group_first_block_no(struct super_block *sb, unsigned long group_no)
-{
-	return group_no * (ext3_fsblk_t)EXT3_BLOCKS_PER_GROUP(sb) +
-		le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block);
-}
-
-/*
- * Special error return code only used by dx_probe() and its callers.
- */
-#define ERR_BAD_DX_DIR	-75000
-
-/*
- * Function prototypes
- */
-
-/*
- * Ok, these declarations are also in <linux/kernel.h> but none of the
- * ext3 source programs needs to include it so they are duplicated here.
- */
-# define NORET_TYPE    /**/
-# define ATTRIB_NORET  __attribute__((noreturn))
-# define NORET_AND     noreturn,
-
-/* balloc.c */
-extern int ext3_bg_has_super(struct super_block *sb, int group);
-extern unsigned long ext3_bg_num_gdb(struct super_block *sb, int group);
-extern ext3_fsblk_t ext3_new_block (handle_t *handle, struct inode *inode,
-			ext3_fsblk_t goal, int *errp);
-extern ext3_fsblk_t ext3_new_blocks (handle_t *handle, struct inode *inode,
-			ext3_fsblk_t goal, unsigned long *count, int *errp);
-extern void ext3_free_blocks (handle_t *handle, struct inode *inode,
-			ext3_fsblk_t block, unsigned long count);
-extern void ext3_free_blocks_sb (handle_t *handle, struct super_block *sb,
-				 ext3_fsblk_t block, unsigned long count,
-				unsigned long *pdquot_freed_blocks);
-extern ext3_fsblk_t ext3_count_free_blocks (struct super_block *);
-extern void ext3_check_blocks_bitmap (struct super_block *);
-extern struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
-						    unsigned int block_group,
-						    struct buffer_head ** bh);
-extern int ext3_should_retry_alloc(struct super_block *sb, int *retries);
-extern void ext3_init_block_alloc_info(struct inode *);
-extern void ext3_rsv_window_add(struct super_block *sb, struct ext3_reserve_window_node *rsv);
-extern int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range);
-
-/* dir.c */
-extern int ext3_check_dir_entry(const char *, struct inode *,
-				struct ext3_dir_entry_2 *,
-				struct buffer_head *, unsigned long);
-extern int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
-				    __u32 minor_hash,
-				    struct ext3_dir_entry_2 *dirent);
-extern void ext3_htree_free_dir_info(struct dir_private_info *p);
-
-/* fsync.c */
-extern int ext3_sync_file(struct file *, loff_t, loff_t, int);
-
-/* hash.c */
-extern int ext3fs_dirhash(const char *name, int len, struct
-			  dx_hash_info *hinfo);
-
-/* ialloc.c */
-extern struct inode * ext3_new_inode (handle_t *, struct inode *,
-				      const struct qstr *, umode_t);
-extern void ext3_free_inode (handle_t *, struct inode *);
-extern struct inode * ext3_orphan_get (struct super_block *, unsigned long);
-extern unsigned long ext3_count_free_inodes (struct super_block *);
-extern unsigned long ext3_count_dirs (struct super_block *);
-extern void ext3_check_inodes_bitmap (struct super_block *);
-extern unsigned long ext3_count_free (struct buffer_head *, unsigned);
-
-
-/* inode.c */
-int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
-		struct buffer_head *bh, ext3_fsblk_t blocknr);
-struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
-struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
-int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
-	sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
-	int create);
-
-extern struct inode *ext3_iget(struct super_block *, unsigned long);
-extern int  ext3_write_inode (struct inode *, struct writeback_control *);
-extern int  ext3_setattr (struct dentry *, struct iattr *);
-extern void ext3_evict_inode (struct inode *);
-extern int  ext3_sync_inode (handle_t *, struct inode *);
-extern void ext3_discard_reservation (struct inode *);
-extern void ext3_dirty_inode(struct inode *, int);
-extern int ext3_change_inode_journal_flag(struct inode *, int);
-extern int ext3_get_inode_loc(struct inode *, struct ext3_iloc *);
-extern int ext3_can_truncate(struct inode *inode);
-extern void ext3_truncate(struct inode *inode);
-extern void ext3_set_inode_flags(struct inode *);
-extern void ext3_get_inode_flags(struct ext3_inode_info *);
-extern void ext3_set_aops(struct inode *inode);
-extern int ext3_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
-		       u64 start, u64 len);
-
-/* ioctl.c */
-extern long ext3_ioctl(struct file *, unsigned int, unsigned long);
-extern long ext3_compat_ioctl(struct file *, unsigned int, unsigned long);
-
-/* namei.c */
-extern int ext3_orphan_add(handle_t *, struct inode *);
-extern int ext3_orphan_del(handle_t *, struct inode *);
-extern int ext3_htree_fill_tree(struct file *dir_file, __u32 start_hash,
-				__u32 start_minor_hash, __u32 *next_hash);
-
-/* resize.c */
-extern int ext3_group_add(struct super_block *sb,
-				struct ext3_new_group_data *input);
-extern int ext3_group_extend(struct super_block *sb,
-				struct ext3_super_block *es,
-				ext3_fsblk_t n_blocks_count);
-
-/* super.c */
-extern __printf(3, 4)
-void ext3_error(struct super_block *, const char *, const char *, ...);
-extern void __ext3_std_error (struct super_block *, const char *, int);
-extern __printf(3, 4)
-void ext3_abort(struct super_block *, const char *, const char *, ...);
-extern __printf(3, 4)
-void ext3_warning(struct super_block *, const char *, const char *, ...);
-extern __printf(3, 4)
-void ext3_msg(struct super_block *, const char *, const char *, ...);
-extern void ext3_update_dynamic_rev (struct super_block *sb);
-
-#define ext3_std_error(sb, errno)				\
-do {								\
-	if ((errno))						\
-		__ext3_std_error((sb), __func__, (errno));	\
-} while (0)
-
-/*
- * Inodes and files operations
- */
-
-/* dir.c */
-extern const struct file_operations ext3_dir_operations;
-
-/* file.c */
-extern const struct inode_operations ext3_file_inode_operations;
-extern const struct file_operations ext3_file_operations;
-
-/* namei.c */
-extern const struct inode_operations ext3_dir_inode_operations;
-extern const struct inode_operations ext3_special_inode_operations;
-
-/* symlink.c */
-extern const struct inode_operations ext3_symlink_inode_operations;
-extern const struct inode_operations ext3_fast_symlink_inode_operations;
-
-
-#endif	/* __KERNEL__ */
-
-#endif	/* _LINUX_EXT3_FS_H */