mirror of
https://github.com/bobranten/Ext4Fsd.git
synced 2025-10-30 13:28:31 -05:00
removed unused files
This commit is contained in:
Bo Brantén
@@ -1,636 +0,0 @@
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/*
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* linux/include/linux/ext2_fs.h
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*
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* Copyright (C) 1992, 1993, 1994, 1995
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* Remy Card (card@masi.ibp.fr)
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* Laboratoire MASI - Institut Blaise Pascal
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* Universite Pierre et Marie Curie (Paris VI)
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*
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* from
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*
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* linux/include/linux/minix_fs.h
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*
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* Copyright (C) 1991, 1992 Linus Torvalds
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*/
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#ifndef _LINUX_EXT2_FS_H
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#define _LINUX_EXT2_FS_H
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#include <linux/types.h>
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/*
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* The second extended filesystem constants/structures
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*/
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/*
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* Define EXT2FS_DEBUG to produce debug messages
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*/
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#undef EXT2FS_DEBUG
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/*
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* Define EXT2_PREALLOCATE to preallocate data blocks for expanding files
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*/
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#define EXT2_PREALLOCATE
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#define EXT2_DEFAULT_PREALLOC_BLOCKS 8
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/*
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* The second extended file system version
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*/
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#define EXT2FS_DATE "95/08/09"
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#define EXT2FS_VERSION "0.5b"
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/*
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* Debug code
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*/
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#ifdef EXT2FS_DEBUG
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# define ext2_debug(f, a...) { \
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printk ("EXT2-fs DEBUG (%s, %d): %s:", \
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__FILE__, __LINE__, __FUNCTION__); \
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printk (f, ## a); \
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}
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#else
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//# define ext2_debug(f, a...) /**/
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#endif
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/*
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* Special inode numbers
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*/
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#define EXT2_BAD_INO 1 /* Bad blocks inode */
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#define EXT2_ROOT_INO 2 /* Root inode */
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#define EXT2_ACL_IDX_INO 3 /* ACL inode */
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#define EXT2_ACL_DATA_INO 4 /* ACL inode */
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#define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */
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#define EXT2_UNDEL_DIR_INO 6 /* Undelete directory inode */
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/* First non-reserved inode for old ext2 filesystems */
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#define EXT2_GOOD_OLD_FIRST_INO 11
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/*
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* The second extended file system magic number
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*/
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#define EXT2_SUPER_MAGIC 0xEF53
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/*
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* Maximal count of links to a file
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*/
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#define EXT2_LINK_MAX 32000
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/*
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* Macro-instructions used to manage several block sizes
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*/
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#define EXT2_MIN_BLOCK_SIZE 1024
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#define EXT2_MAX_BLOCK_SIZE 4096
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#define EXT2_MIN_BLOCK_LOG_SIZE 10
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#ifdef __KERNEL__
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# define EXT2_BLOCK_SIZE(s) ((s)->s_blocksize)
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#else
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# define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size)
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#endif
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#define EXT2_ACLE_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_acl_entry))
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#define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (__u32))
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#ifdef __KERNEL__
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# define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
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#else
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# define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
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#endif
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#ifdef __KERNEL__
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#define EXT2_ADDR_PER_BLOCK_BITS(s) ((s)->u.ext2_sb.s_addr_per_block_bits)
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#define EXT2_INODE_SIZE(s) ((s)->u.ext2_sb.s_inode_size)
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#define EXT2_FIRST_INO(s) ((s)->u.ext2_sb.s_first_ino)
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#else
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#define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \
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EXT2_GOOD_OLD_INODE_SIZE : \
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(s)->s_inode_size)
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#define EXT2_FIRST_INO(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \
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EXT2_GOOD_OLD_FIRST_INO : \
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(s)->s_first_ino)
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#endif
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/*
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* Macro-instructions used to manage fragments
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*/
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#define EXT2_MIN_FRAG_SIZE 1024
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#define EXT2_MAX_FRAG_SIZE 4096
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#define EXT2_MIN_FRAG_LOG_SIZE 10
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#ifdef __KERNEL__
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# define EXT2_FRAG_SIZE(s) ((s)->u.ext2_sb.s_frag_size)
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# define EXT2_FRAGS_PER_BLOCK(s) ((s)->u.ext2_sb.s_frags_per_block)
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#else
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# define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size)
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# define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s))
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#endif
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/*
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* ACL structures
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*/
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struct ext2_acl_header /* Header of Access Control Lists */
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{
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__u32 aclh_size;
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__u32 aclh_file_count;
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__u32 aclh_acle_count;
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__u32 aclh_first_acle;
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};
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struct ext2_acl_entry /* Access Control List Entry */
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{
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__u32 acle_size;
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__u16 acle_perms; /* Access permissions */
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__u16 acle_type; /* Type of entry */
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__u16 acle_tag; /* User or group identity */
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__u16 acle_pad1;
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__u32 acle_next; /* Pointer on next entry for the */
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/* same inode or on next free entry */
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};
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/*
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* Structure of a blocks group descriptor
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*/
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struct ext2_group_desc
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{
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__u32 bg_block_bitmap; /* Blocks bitmap block */
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__u32 bg_inode_bitmap; /* Inodes bitmap block */
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__u32 bg_inode_table; /* Inodes table block */
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__u16 bg_free_blocks_count; /* Free blocks count */
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__u16 bg_free_inodes_count; /* Free inodes count */
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__u16 bg_used_dirs_count; /* Directories count */
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__u16 bg_pad;
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__u32 bg_reserved[3];
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};
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/*
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* Macro-instructions used to manage group descriptors
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*/
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#ifdef __KERNEL__
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# define EXT2_BLOCKS_PER_GROUP(s) ((s)->u.ext2_sb.s_blocks_per_group)
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# define EXT2_DESC_PER_BLOCK(s) ((s)->u.ext2_sb.s_desc_per_block)
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# define EXT2_INODES_PER_GROUP(s) ((s)->u.ext2_sb.s_inodes_per_group)
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# define EXT2_DESC_PER_BLOCK_BITS(s) ((s)->u.ext2_sb.s_desc_per_block_bits)
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#else
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# define EXT2_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
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# define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc))
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# define EXT2_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
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#endif
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/*
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* Constants relative to the data blocks
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*/
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#define EXT2_NDIR_BLOCKS 12
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#define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS
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#define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1)
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#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1)
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#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1)
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/*
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* Inode flags
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*/
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#define EXT2_SECRM_FL 0x00000001 /* Secure deletion */
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#define EXT2_UNRM_FL 0x00000002 /* Undelete */
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#define EXT2_COMPR_FL 0x00000004 /* Compress file */
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#define EXT2_SYNC_FL 0x00000008 /* Synchronous updates */
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#define EXT2_IMMUTABLE_FL 0x00000010 /* Immutable file */
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#define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */
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#define EXT2_NODUMP_FL 0x00000040 /* do not dump file */
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#define EXT2_NOATIME_FL 0x00000080 /* do not update atime */
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/* Reserved for compression usage... */
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#define EXT2_DIRTY_FL 0x00000100
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#define EXT2_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
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#define EXT2_NOCOMP_FL 0x00000400 /* Don't compress */
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#define EXT2_ECOMPR_FL 0x00000800 /* Compression error */
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/* End compression flags --- maybe not all used */
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#define EXT2_BTREE_FL 0x00001000 /* btree format dir */
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#define EXT2_IMAGIC_FL 0x00002000 /* AFS directory */
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#define EXT2_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
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#define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */
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#define EXT2_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
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#define EXT2_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
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#define EXT2_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
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#define EXT2_EXTENTS_FL 0x00080000 /* Inode uses extents */
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#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
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#define EXT2_FL_USER_VISIBLE 0x00001FFF /* User visible flags */
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#define EXT2_FL_USER_MODIFIABLE 0x000000FF /* User modifiable flags */
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/*
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* ioctl commands
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*/
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#define EXT2_IOC_GETFLAGS _IOR('f', 1, long)
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#define EXT2_IOC_SETFLAGS _IOW('f', 2, long)
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#define EXT2_IOC_GETVERSION _IOR('v', 1, long)
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#define EXT2_IOC_SETVERSION _IOW('v', 2, long)
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/*
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* Structure of an inode on the disk
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*/
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struct ext2_inode {
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__u16 i_mode; /* File mode */
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__u16 i_uid; /* Low 16 bits of Owner Uid */
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__u32 i_size; /* Size in bytes */
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__u32 i_atime; /* Access time */
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__u32 i_ctime; /* Creation time */
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__u32 i_mtime; /* Modification time */
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__u32 i_dtime; /* Deletion Time */
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__u16 i_gid; /* Low 16 bits of Group Id */
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__u16 i_links_count; /* Links count */
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__u32 i_blocks; /* Blocks count */
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__u32 i_flags; /* File flags */
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union {
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struct {
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__u32 l_i_reserved1;
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} linux1;
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struct {
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__u32 h_i_translator;
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} hurd1;
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struct {
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__u32 m_i_reserved1;
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} masix1;
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} osd1; /* OS dependent 1 */
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__u32 i_block[EXT2_N_BLOCKS];/* Pointers to blocks */
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__u32 i_generation; /* File version (for NFS) */
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__u32 i_file_acl; /* File ACL */
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__u32 i_dir_acl; /* Directory ACL */
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__u32 i_faddr; /* Fragment address */
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union {
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struct {
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__u8 l_i_frag; /* Fragment number */
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__u8 l_i_fsize; /* Fragment size */
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__u16 i_pad1;
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__u16 l_i_uid_high; /* these 2 fields */
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__u16 l_i_gid_high; /* were reserved2[0] */
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__u32 l_i_reserved2;
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} linux2;
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struct {
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__u8 h_i_frag; /* Fragment number */
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__u8 h_i_fsize; /* Fragment size */
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__u16 h_i_mode_high;
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__u16 h_i_uid_high;
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__u16 h_i_gid_high;
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__u32 h_i_author;
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} hurd2;
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struct {
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__u8 m_i_frag; /* Fragment number */
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__u8 m_i_fsize; /* Fragment size */
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__u16 m_pad1;
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__u32 m_i_reserved2[2];
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} masix2;
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} osd2; /* OS dependent 2 */
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__le16 i_extra_isize;
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__le16 i_pad1;
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};
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#if defined(__KERNEL__) || defined(__linux__)
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#define i_reserved1 osd1.linux1.l_i_reserved1
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#define i_frag osd2.linux2.l_i_frag
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#define i_fsize osd2.linux2.l_i_fsize
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#define i_uid_low i_uid
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#define i_gid_low i_gid
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#define i_uid_high osd2.linux2.l_i_uid_high
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#define i_gid_high osd2.linux2.l_i_gid_high
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#define i_reserved2 osd2.linux2.l_i_reserved2
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#endif
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#ifdef __hurd__
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#define i_translator osd1.hurd1.h_i_translator
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#define i_frag osd2.hurd2.h_i_frag;
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#define i_fsize osd2.hurd2.h_i_fsize;
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#define i_uid_high osd2.hurd2.h_i_uid_high
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#define i_gid_high osd2.hurd2.h_i_gid_high
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#define i_author osd2.hurd2.h_i_author
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#endif
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#ifdef __masix__
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#define i_reserved1 osd1.masix1.m_i_reserved1
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#define i_frag osd2.masix2.m_i_frag
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#define i_fsize osd2.masix2.m_i_fsize
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#define i_reserved2 osd2.masix2.m_i_reserved2
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#endif
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/*
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* File system states
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*/
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#define EXT2_VALID_FS 0x0001 /* Unmounted cleanly */
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#define EXT2_ERROR_FS 0x0002 /* Errors detected */
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/*
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* Mount flags
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*/
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#define EXT2_MOUNT_CHECK 0x0001 /* Do mount-time checks */
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#define EXT2_MOUNT_GRPID 0x0004 /* Create files with directory's group */
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#define EXT2_MOUNT_DEBUG 0x0008 /* Some debugging messages */
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#define EXT2_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */
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#define EXT2_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */
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#define EXT2_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */
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#define EXT2_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */
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#define EXT2_MOUNT_NO_UID32 0x0200 /* Disable 32-bit UIDs */
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#define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt
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#define set_opt(o, opt) o |= EXT2_MOUNT_##opt
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#define test_opt(sb, opt) ((sb)->u.ext2_sb.s_mount_opt & \
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EXT2_MOUNT_##opt)
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|
||||||
/*
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|
||||||
* Maximal mount counts between two filesystem checks
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|
||||||
*/
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|
||||||
#define EXT2_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
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|
||||||
#define EXT2_DFL_CHECKINTERVAL 0 /* Don't use interval check */
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|
||||||
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|
||||||
/*
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|
||||||
* Behaviour when detecting errors
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|
||||||
*/
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|
||||||
#define EXT2_ERRORS_CONTINUE 1 /* Continue execution */
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|
||||||
#define EXT2_ERRORS_RO 2 /* Remount fs read-only */
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|
||||||
#define EXT2_ERRORS_PANIC 3 /* Panic */
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|
||||||
#define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Structure of the super block
|
|
||||||
*/
|
|
||||||
struct ext2_super_block {
|
|
||||||
__u32 s_inodes_count; /* Inodes count */
|
|
||||||
__u32 s_blocks_count; /* Blocks count */
|
|
||||||
__u32 s_r_blocks_count; /* Reserved blocks count */
|
|
||||||
__u32 s_free_blocks_count; /* Free blocks count */
|
|
||||||
__u32 s_free_inodes_count; /* Free inodes count */
|
|
||||||
__u32 s_first_data_block; /* First Data Block */
|
|
||||||
__u32 s_log_block_size; /* Block size */
|
|
||||||
__s32 s_log_frag_size; /* Fragment size */
|
|
||||||
__u32 s_blocks_per_group; /* # Blocks per group */
|
|
||||||
__u32 s_frags_per_group; /* # Fragments per group */
|
|
||||||
__u32 s_inodes_per_group; /* # Inodes per group */
|
|
||||||
__u32 s_mtime; /* Mount time */
|
|
||||||
__u32 s_wtime; /* Write time */
|
|
||||||
__u16 s_mnt_count; /* Mount count */
|
|
||||||
__s16 s_max_mnt_count; /* Maximal mount count */
|
|
||||||
__u16 s_magic; /* Magic signature */
|
|
||||||
__u16 s_state; /* File system state */
|
|
||||||
__u16 s_errors; /* Behaviour when detecting errors */
|
|
||||||
__u16 s_minor_rev_level; /* minor revision level */
|
|
||||||
__u32 s_lastcheck; /* time of last check */
|
|
||||||
__u32 s_checkinterval; /* max. time between checks */
|
|
||||||
__u32 s_creator_os; /* OS */
|
|
||||||
__u32 s_rev_level; /* Revision level */
|
|
||||||
__u16 s_def_resuid; /* Default uid for reserved blocks */
|
|
||||||
__u16 s_def_resgid; /* Default gid for reserved blocks */
|
|
||||||
/*
|
|
||||||
* These fields are for EXT2_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...
|
|
||||||
*/
|
|
||||||
__u32 s_first_ino; /* First non-reserved inode */
|
|
||||||
__u16 s_inode_size; /* size of inode structure */
|
|
||||||
__u16 s_block_group_nr; /* block group # of this superblock */
|
|
||||||
__u32 s_feature_compat; /* compatible feature set */
|
|
||||||
__u32 s_feature_incompat; /* incompatible feature set */
|
|
||||||
__u32 s_feature_ro_compat; /* readonly-compatible feature set */
|
|
||||||
__u8 s_uuid[16]; /* 128-bit uuid for volume */
|
|
||||||
char s_volume_name[16]; /* volume name */
|
|
||||||
char s_last_mounted[64]; /* directory where last mounted */
|
|
||||||
__u32 s_algorithm_usage_bitmap; /* For compression */
|
|
||||||
/*
|
|
||||||
* Performance hints. Directory preallocation should only
|
|
||||||
* happen if the EXT2_COMPAT_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 */
|
|
||||||
__u16 s_padding1;
|
|
||||||
__u32 s_reserved[204]; /* Padding to the end of the block */
|
|
||||||
};
|
|
||||||
|
|
||||||
#ifdef __KERNEL__
|
|
||||||
#define EXT2_SB(sb) (&((sb)->u.ext2_sb))
|
|
||||||
#else
|
|
||||||
/* Assume that user mode programs are passing in an ext2fs superblock, not
|
|
||||||
* a kernel struct super_block. This will allow us to call the feature-test
|
|
||||||
* macros from user land. */
|
|
||||||
#define EXT2_SB(sb) (sb)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Codes for operating systems
|
|
||||||
*/
|
|
||||||
#define EXT2_OS_LINUX 0
|
|
||||||
#define EXT2_OS_HURD 1
|
|
||||||
#define EXT2_OS_MASIX 2
|
|
||||||
#define EXT2_OS_FREEBSD 3
|
|
||||||
#define EXT2_OS_LITES 4
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Revision levels
|
|
||||||
*/
|
|
||||||
#define EXT2_GOOD_OLD_REV 0 /* The good old (original) format */
|
|
||||||
#define EXT2_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
|
|
||||||
|
|
||||||
#define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV
|
|
||||||
#define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV
|
|
||||||
|
|
||||||
#define EXT2_GOOD_OLD_INODE_SIZE 128
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Feature set definitions
|
|
||||||
*/
|
|
||||||
|
|
||||||
#define EXT2_HAS_COMPAT_FEATURE(sb,mask) \
|
|
||||||
( EXT2_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
|
|
||||||
#define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) \
|
|
||||||
( EXT2_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
|
|
||||||
#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) \
|
|
||||||
( EXT2_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
|
|
||||||
#define EXT2_SET_COMPAT_FEATURE(sb,mask) \
|
|
||||||
EXT2_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
|
|
||||||
#define EXT2_SET_RO_COMPAT_FEATURE(sb,mask) \
|
|
||||||
EXT2_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
|
|
||||||
#define EXT2_SET_INCOMPAT_FEATURE(sb,mask) \
|
|
||||||
EXT2_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
|
|
||||||
#define EXT2_CLEAR_COMPAT_FEATURE(sb,mask) \
|
|
||||||
EXT2_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
|
|
||||||
#define EXT2_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
|
|
||||||
EXT2_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
|
|
||||||
#define EXT2_CLEAR_INCOMPAT_FEATURE(sb,mask) \
|
|
||||||
EXT2_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
|
|
||||||
|
|
||||||
#define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001
|
|
||||||
#define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002
|
|
||||||
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
|
|
||||||
#define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008
|
|
||||||
#define EXT2_FEATURE_COMPAT_RESIZE_INO 0x0010
|
|
||||||
#define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020
|
|
||||||
#define EXT2_FEATURE_COMPAT_ANY 0xffffffff
|
|
||||||
|
|
||||||
#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
|
|
||||||
#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
|
|
||||||
#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
|
|
||||||
#define EXT2_FEATURE_RO_COMPAT_ANY 0xffffffff
|
|
||||||
|
|
||||||
#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
|
|
||||||
#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
|
|
||||||
|
|
||||||
#define EXT2_FEATURE_COMPAT_SUPP 0
|
|
||||||
#define EXT2_FEATURE_INCOMPAT_SUPP EXT2_FEATURE_INCOMPAT_FILETYPE
|
|
||||||
#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
|
|
||||||
EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
|
|
||||||
EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
|
|
||||||
#define EXT2_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT2_FEATURE_RO_COMPAT_SUPP
|
|
||||||
#define EXT2_FEATURE_INCOMPAT_UNSUPPORTED ~EXT2_FEATURE_INCOMPAT_SUPP
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Default values for user and/or group using reserved blocks
|
|
||||||
*/
|
|
||||||
#define EXT2_DEF_RESUID 0
|
|
||||||
#define EXT2_DEF_RESGID 0
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Structure of a directory entry
|
|
||||||
*/
|
|
||||||
#define EXT2_NAME_LEN 255
|
|
||||||
|
|
||||||
struct ext2_dir_entry {
|
|
||||||
__u32 inode; /* Inode number */
|
|
||||||
__u16 rec_len; /* Directory entry length */
|
|
||||||
__u16 name_len; /* Name length */
|
|
||||||
char name[EXT2_NAME_LEN]; /* File name */
|
|
||||||
};
|
|
||||||
|
|
||||||
/*
|
|
||||||
* The new version of the directory entry. Since EXT2 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 ext2_dir_entry_2 {
|
|
||||||
__u32 inode; /* Inode number */
|
|
||||||
__u16 rec_len; /* Directory entry length */
|
|
||||||
__u8 name_len; /* Name length */
|
|
||||||
__u8 file_type;
|
|
||||||
char name[EXT2_NAME_LEN]; /* File name */
|
|
||||||
};
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Ext2 directory file types. Only the low 3 bits are used. The
|
|
||||||
* other bits are reserved for now.
|
|
||||||
*/
|
|
||||||
enum {
|
|
||||||
EXT2_FT_UNKNOWN,
|
|
||||||
EXT2_FT_REG_FILE,
|
|
||||||
EXT2_FT_DIR,
|
|
||||||
EXT2_FT_CHRDEV,
|
|
||||||
EXT2_FT_BLKDEV,
|
|
||||||
EXT2_FT_FIFO,
|
|
||||||
EXT2_FT_SOCK,
|
|
||||||
EXT2_FT_SYMLINK,
|
|
||||||
EXT2_FT_MAX
|
|
||||||
};
|
|
||||||
|
|
||||||
/*
|
|
||||||
* EXT2_DIR_PAD defines the directory entries boundaries
|
|
||||||
*
|
|
||||||
* NOTE: It must be a multiple of 4
|
|
||||||
*/
|
|
||||||
#define EXT2_DIR_PAD 4
|
|
||||||
#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1)
|
|
||||||
#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & \
|
|
||||||
~EXT2_DIR_ROUND)
|
|
||||||
|
|
||||||
#ifdef __KERNEL__
|
|
||||||
/*
|
|
||||||
* Function prototypes
|
|
||||||
*/
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Ok, these declarations are also in <linux/kernel.h> but none of the
|
|
||||||
* ext2 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 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 void ext2_free_blocks (struct inode *, unsigned long,
|
|
||||||
unsigned long);
|
|
||||||
extern unsigned long ext2_count_free_blocks (struct super_block *);
|
|
||||||
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);
|
|
||||||
|
|
||||||
/* dir.c */
|
|
||||||
extern int ext2_add_link (struct dentry *, struct inode *);
|
|
||||||
extern ino_t ext2_inode_by_name(struct inode *, struct dentry *);
|
|
||||||
extern int ext2_make_empty(struct inode *, struct inode *);
|
|
||||||
extern struct ext2_dir_entry_2 * ext2_find_entry (struct inode *,struct dentry *, struct page **);
|
|
||||||
extern int ext2_delete_entry (struct ext2_dir_entry_2 *, struct page *);
|
|
||||||
extern int ext2_empty_dir (struct inode *);
|
|
||||||
extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **);
|
|
||||||
extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *);
|
|
||||||
|
|
||||||
/* fsync.c */
|
|
||||||
extern int ext2_sync_file (struct file *, struct dentry *, int);
|
|
||||||
extern int ext2_fsync_inode (struct inode *, int);
|
|
||||||
|
|
||||||
/* ialloc.c */
|
|
||||||
extern struct inode * ext2_new_inode (const struct inode *, int);
|
|
||||||
extern void ext2_free_inode (struct inode *);
|
|
||||||
extern unsigned long ext2_count_free_inodes (struct super_block *);
|
|
||||||
extern void ext2_check_inodes_bitmap (struct super_block *);
|
|
||||||
extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
|
|
||||||
|
|
||||||
/* inode.c */
|
|
||||||
extern void ext2_read_inode (struct inode *);
|
|
||||||
extern void 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 void ext2_truncate (struct inode *);
|
|
||||||
|
|
||||||
/* ioctl.c */
|
|
||||||
extern int ext2_ioctl (struct inode *, struct file *, unsigned int,
|
|
||||||
unsigned long);
|
|
||||||
|
|
||||||
/* super.c */
|
|
||||||
extern void ext2_error (struct super_block *, const char *, const char *, ...)
|
|
||||||
__attribute__ ((format (printf, 3, 4)));
|
|
||||||
extern NORET_TYPE void ext2_panic (struct super_block *, const char *,
|
|
||||||
const char *, ...)
|
|
||||||
__attribute__ ((NORET_AND format (printf, 3, 4)));
|
|
||||||
extern void ext2_warning (struct super_block *, const char *, const char *, ...)
|
|
||||||
__attribute__ ((format (printf, 3, 4)));
|
|
||||||
extern void ext2_update_dynamic_rev (struct super_block *sb);
|
|
||||||
extern void ext2_put_super (struct super_block *);
|
|
||||||
extern void ext2_write_super (struct super_block *);
|
|
||||||
extern int ext2_remount (struct super_block *, int *, char *);
|
|
||||||
extern struct super_block * ext2_read_super (struct super_block *,void *,int);
|
|
||||||
extern int ext2_statfs (struct super_block *, struct statfs *);
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Inodes and files operations
|
|
||||||
*/
|
|
||||||
|
|
||||||
/* dir.c */
|
|
||||||
extern struct file_operations ext2_dir_operations;
|
|
||||||
|
|
||||||
/* file.c */
|
|
||||||
extern struct inode_operations ext2_file_inode_operations;
|
|
||||||
extern struct file_operations ext2_file_operations;
|
|
||||||
|
|
||||||
/* inode.c */
|
|
||||||
extern struct address_space_operations ext2_aops;
|
|
||||||
|
|
||||||
/* namei.c */
|
|
||||||
extern struct inode_operations ext2_dir_inode_operations;
|
|
||||||
|
|
||||||
/* symlink.c */
|
|
||||||
extern struct inode_operations ext2_fast_symlink_inode_operations;
|
|
||||||
|
|
||||||
#endif /* __KERNEL__ */
|
|
||||||
|
|
||||||
#endif /* _LINUX_EXT2_FS_H */
|
|
||||||
File diff suppressed because it is too large
Load Diff
@@ -1,156 +0,0 @@
|
|||||||
/*
|
|
||||||
* linux/include/linux/ext3_fs_i.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_i.h
|
|
||||||
*
|
|
||||||
* Copyright (C) 1991, 1992 Linus Torvalds
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef _LINUX_EXT3_FS_I
|
|
||||||
#define _LINUX_EXT3_FS_I
|
|
||||||
|
|
||||||
#include <linux/rbtree.h>
|
|
||||||
|
|
||||||
/* data type for block offset of block group */
|
|
||||||
typedef int ext3_grpblk_t;
|
|
||||||
typedef int ext4_grpblk_t;
|
|
||||||
|
|
||||||
/* data type for filesystem-wide blocks number */
|
|
||||||
typedef unsigned long long ext3_fsblk_t;
|
|
||||||
typedef unsigned long long ext4_fsblk_t;
|
|
||||||
|
|
||||||
/* data type for file logical block number */
|
|
||||||
typedef __u32 ext3_lblk_t;
|
|
||||||
typedef __u32 ext4_lblk_t;
|
|
||||||
|
|
||||||
/* data type for block group number */
|
|
||||||
typedef unsigned int ext3_group_t;
|
|
||||||
typedef unsigned int ext4_group_t;
|
|
||||||
|
|
||||||
#define E3FSBLK "%lu"
|
|
||||||
|
|
||||||
struct ext3_reserve_window {
|
|
||||||
ext3_fsblk_t _rsv_start; /* First byte reserved */
|
|
||||||
ext3_fsblk_t _rsv_end; /* Last byte reserved or 0 */
|
|
||||||
};
|
|
||||||
|
|
||||||
struct ext3_reserve_window_node {
|
|
||||||
struct rb_node rsv_node;
|
|
||||||
__u32 rsv_goal_size;
|
|
||||||
__u32 rsv_alloc_hit;
|
|
||||||
struct ext3_reserve_window rsv_window;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct ext3_block_alloc_info {
|
|
||||||
/* information about reservation window */
|
|
||||||
struct ext3_reserve_window_node rsv_window_node;
|
|
||||||
/*
|
|
||||||
* was i_next_alloc_block in ext3_inode_info
|
|
||||||
* is the logical (file-relative) number of the
|
|
||||||
* most-recently-allocated block in this file.
|
|
||||||
* We use this for detecting linearly ascending allocation requests.
|
|
||||||
*/
|
|
||||||
__u32 last_alloc_logical_block;
|
|
||||||
/*
|
|
||||||
* Was i_next_alloc_goal in ext3_inode_info
|
|
||||||
* is the *physical* companion to i_next_alloc_block.
|
|
||||||
* it the physical block number of the block which was most-recentl
|
|
||||||
* allocated to this file. This give us the goal (target) for the next
|
|
||||||
* allocation when we detect linearly ascending requests.
|
|
||||||
*/
|
|
||||||
ext3_fsblk_t last_alloc_physical_block;
|
|
||||||
};
|
|
||||||
|
|
||||||
#define rsv_start rsv_window._rsv_start
|
|
||||||
#define rsv_end rsv_window._rsv_end
|
|
||||||
|
|
||||||
/*
|
|
||||||
* third extended file system inode data in memory
|
|
||||||
*/
|
|
||||||
struct ext3_inode_info {
|
|
||||||
__le32 i_data[15]; /* unconverted */
|
|
||||||
__u32 i_flags;
|
|
||||||
#ifdef EXT3_FRAGMENTS
|
|
||||||
__u32 i_faddr;
|
|
||||||
__u8 i_frag_no;
|
|
||||||
__u8 i_frag_size;
|
|
||||||
#endif
|
|
||||||
ext3_fsblk_t i_file_acl;
|
|
||||||
__u32 i_dir_acl;
|
|
||||||
__u32 i_dtime;
|
|
||||||
|
|
||||||
/*
|
|
||||||
* i_block_group is the number of the block group which contains
|
|
||||||
* this file's inode. Constant across the lifetime of the inode,
|
|
||||||
* it is ued for making block allocation decisions - we try to
|
|
||||||
* place a file's data blocks near its inode block, and new inodes
|
|
||||||
* near to their parent directory's inode.
|
|
||||||
*/
|
|
||||||
__u32 i_block_group;
|
|
||||||
__u32 i_state; /* Dynamic state flags for ext3 */
|
|
||||||
|
|
||||||
/* block reservation info */
|
|
||||||
struct ext3_block_alloc_info *i_block_alloc_info;
|
|
||||||
|
|
||||||
__u32 i_dir_start_lookup;
|
|
||||||
#ifdef CONFIG_EXT3_FS_XATTR
|
|
||||||
/*
|
|
||||||
* Extended attributes can be read independently of the main file
|
|
||||||
* data. Taking i_mutex even when reading would cause contention
|
|
||||||
* between readers of EAs and writers of regular file data, so
|
|
||||||
* instead we synchronize on xattr_sem when reading or changing
|
|
||||||
* EAs.
|
|
||||||
*/
|
|
||||||
struct rw_semaphore xattr_sem;
|
|
||||||
#endif
|
|
||||||
#ifdef CONFIG_EXT3_FS_POSIX_ACL
|
|
||||||
struct posix_acl *i_acl;
|
|
||||||
struct posix_acl *i_default_acl;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
struct list_head i_orphan; /* unlinked but open inodes */
|
|
||||||
|
|
||||||
/*
|
|
||||||
* i_disksize keeps track of what the inode size is ON DISK, not
|
|
||||||
* in memory. During truncate, i_size is set to the new size by
|
|
||||||
* the VFS prior to calling ext3_truncate(), but the filesystem won't
|
|
||||||
* set i_disksize to 0 until the truncate is actually under way.
|
|
||||||
*
|
|
||||||
* The intent is that i_disksize always represents the blocks which
|
|
||||||
* are used by this file. This allows recovery to restart truncate
|
|
||||||
* on orphans if we crash during truncate. We actually write i_disksize
|
|
||||||
* into the on-disk inode when writing inodes out, instead of i_size.
|
|
||||||
*
|
|
||||||
* The only time when i_disksize and i_size may be different is when
|
|
||||||
* a truncate is in progress. The only things which change i_disksize
|
|
||||||
* are ext3_get_block (growth) and ext3_truncate (shrinkth).
|
|
||||||
*/
|
|
||||||
loff_t i_disksize;
|
|
||||||
|
|
||||||
/* on-disk additional length */
|
|
||||||
__u16 i_extra_isize;
|
|
||||||
|
|
||||||
#if 0
|
|
||||||
/*
|
|
||||||
* truncate_mutex is for serialising ext3_truncate() against
|
|
||||||
* ext3_getblock(). In the 2.4 ext2 design, great chunks of inode's
|
|
||||||
* data tree are chopped off during truncate. We can't do that in
|
|
||||||
* ext3 because whenever we perform intermediate commits during
|
|
||||||
* truncate, the inode and all the metadata blocks *must* be in a
|
|
||||||
* consistent state which allows truncation of the orphans to restart
|
|
||||||
* during recovery. Hence we must fix the get_block-vs-truncate race
|
|
||||||
* by other means, so we have truncate_mutex.
|
|
||||||
*/
|
|
||||||
struct mutex truncate_mutex;
|
|
||||||
#endif
|
|
||||||
struct inode vfs_inode;
|
|
||||||
};
|
|
||||||
|
|
||||||
#endif /* _LINUX_EXT3_FS_I */
|
|
||||||
@@ -1,71 +0,0 @@
|
|||||||
/*
|
|
||||||
* 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
|
|
||||||
|
|
||||||
#include <linux/types.h>
|
|
||||||
#include <linux/rbtree.h>
|
|
||||||
|
|
||||||
/*
|
|
||||||
* third extended-fs super-block data in memory
|
|
||||||
*/
|
|
||||||
|
|
||||||
struct ext3_gd {
|
|
||||||
ext3_fsblk_t block;
|
|
||||||
struct ext4_group_desc *gd;
|
|
||||||
struct buffer_head *bh;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct ext3_sb_info {
|
|
||||||
|
|
||||||
ERESOURCE s_gd_lock;
|
|
||||||
struct ext3_gd *s_gd;
|
|
||||||
|
|
||||||
unsigned long s_desc_size; /* size of group desc */
|
|
||||||
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_inodes_per_group;/* Number of inodes in a group */
|
|
||||||
unsigned long s_inodes_per_block;/* Number of inodes per block */
|
|
||||||
unsigned long s_blocks_per_group;/* Number of blocks in a group */
|
|
||||||
unsigned long s_groups_count; /* Number of groups in the fs */
|
|
||||||
unsigned long s_itb_per_group; /* Number of inode table blocks per group */
|
|
||||||
|
|
||||||
int s_addr_per_block_bits;
|
|
||||||
int s_desc_per_block_bits;
|
|
||||||
|
|
||||||
|
|
||||||
#if 0
|
|
||||||
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_frags_per_group;/* Number of fragments 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_desc_per_block; /* Number of group descriptors per block */
|
|
||||||
unsigned long s_overhead_last; /* Last calculated overhead */
|
|
||||||
unsigned long s_blocks_last; /* Last seen block count */
|
|
||||||
#endif
|
|
||||||
|
|
||||||
struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */
|
|
||||||
|
|
||||||
__le32 s_first_ino;
|
|
||||||
|
|
||||||
u32 s_hash_seed[4];
|
|
||||||
int s_def_hash_version;
|
|
||||||
};
|
|
||||||
|
|
||||||
int ext3_release_dir (struct inode * inode, struct file * filp);
|
|
||||||
|
|
||||||
#endif /* _LINUX_EXT3_FS_SB */
|
|
||||||
@@ -1,225 +0,0 @@
|
|||||||
/*
|
|
||||||
* linux/include/linux/ext3_jbd.h
|
|
||||||
*
|
|
||||||
* Written by Stephen C. Tweedie <sct@redhat.com>, 1999
|
|
||||||
*
|
|
||||||
* Copyright 1998--1999 Red Hat corp --- All Rights Reserved
|
|
||||||
*
|
|
||||||
* This file is part of the Linux kernel and is made available under
|
|
||||||
* the terms of the GNU General Public License, version 2, or at your
|
|
||||||
* option, any later version, incorporated herein by reference.
|
|
||||||
*
|
|
||||||
* Ext3-specific journaling extensions.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef _LINUX_EXT3_JBD_H
|
|
||||||
#define _LINUX_EXT3_JBD_H
|
|
||||||
|
|
||||||
#include <linux/fs.h>
|
|
||||||
#include <linux/jbd.h>
|
|
||||||
|
|
||||||
#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal)
|
|
||||||
|
|
||||||
/* Define the number of blocks we need to account to a transaction to
|
|
||||||
* modify one block of data.
|
|
||||||
*
|
|
||||||
* We may have to touch one inode, one bitmap buffer, up to three
|
|
||||||
* indirection blocks, the group and superblock summaries, and the data
|
|
||||||
* block to complete the transaction. */
|
|
||||||
|
|
||||||
#define EXT3_SINGLEDATA_TRANS_BLOCKS 8U
|
|
||||||
|
|
||||||
/* Extended attribute operations touch at most two data buffers,
|
|
||||||
* two bitmap buffers, and two group summaries, in addition to the inode
|
|
||||||
* and the superblock, which are already accounted for. */
|
|
||||||
|
|
||||||
#define EXT3_XATTR_TRANS_BLOCKS 6U
|
|
||||||
|
|
||||||
/* Define the minimum size for a transaction which modifies data. This
|
|
||||||
* needs to take into account the fact that we may end up modifying two
|
|
||||||
* quota files too (one for the group, one for the user quota). The
|
|
||||||
* superblock only gets updated once, of course, so don't bother
|
|
||||||
* counting that again for the quota updates. */
|
|
||||||
|
|
||||||
#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \
|
|
||||||
EXT3_XATTR_TRANS_BLOCKS - 2 + \
|
|
||||||
2*EXT3_QUOTA_TRANS_BLOCKS(sb))
|
|
||||||
|
|
||||||
/* Delete operations potentially hit one directory's namespace plus an
|
|
||||||
* entire inode, plus arbitrary amounts of bitmap/indirection data. Be
|
|
||||||
* generous. We can grow the delete transaction later if necessary. */
|
|
||||||
|
|
||||||
#define EXT3_DELETE_TRANS_BLOCKS(sb) (2 * EXT3_DATA_TRANS_BLOCKS(sb) + 64)
|
|
||||||
|
|
||||||
/* Define an arbitrary limit for the amount of data we will anticipate
|
|
||||||
* writing to any given transaction. For unbounded transactions such as
|
|
||||||
* write(2) and truncate(2) we can write more than this, but we always
|
|
||||||
* start off at the maximum transaction size and grow the transaction
|
|
||||||
* optimistically as we go. */
|
|
||||||
|
|
||||||
#define EXT3_MAX_TRANS_DATA 64U
|
|
||||||
|
|
||||||
/* We break up a large truncate or write transaction once the handle's
|
|
||||||
* buffer credits gets this low, we need either to extend the
|
|
||||||
* transaction or to start a new one. Reserve enough space here for
|
|
||||||
* inode, bitmap, superblock, group and indirection updates for at least
|
|
||||||
* one block, plus two quota updates. Quota allocations are not
|
|
||||||
* needed. */
|
|
||||||
|
|
||||||
#define EXT3_RESERVE_TRANS_BLOCKS 12U
|
|
||||||
|
|
||||||
#define EXT3_INDEX_EXTRA_TRANS_BLOCKS 8
|
|
||||||
|
|
||||||
#ifdef CONFIG_QUOTA
|
|
||||||
/* Amount of blocks needed for quota update - we know that the structure was
|
|
||||||
* allocated so we need to update only inode+data */
|
|
||||||
#define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
|
|
||||||
/* Amount of blocks needed for quota insert/delete - we do some block writes
|
|
||||||
* but inode, sb and group updates are done only once */
|
|
||||||
#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
|
|
||||||
(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0)
|
|
||||||
#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\
|
|
||||||
(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0)
|
|
||||||
#else
|
|
||||||
#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0
|
|
||||||
#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
|
|
||||||
#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
|
|
||||||
#endif
|
|
||||||
|
|
||||||
int
|
|
||||||
ext3_mark_iloc_dirty(handle_t *handle,
|
|
||||||
struct inode *inode,
|
|
||||||
struct ext3_iloc *iloc);
|
|
||||||
|
|
||||||
/*
|
|
||||||
* On success, We end up with an outstanding reference count against
|
|
||||||
* iloc->bh. This _must_ be cleaned up later.
|
|
||||||
*/
|
|
||||||
|
|
||||||
int ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
|
|
||||||
struct ext3_iloc *iloc);
|
|
||||||
|
|
||||||
int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode);
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Wrapper functions with which ext3 calls into JBD. The intent here is
|
|
||||||
* to allow these to be turned into appropriate stubs so ext3 can control
|
|
||||||
* ext2 filesystems, so ext2+ext3 systems only nee one fs. This work hasn't
|
|
||||||
* been done yet.
|
|
||||||
*/
|
|
||||||
|
|
||||||
static inline void ext3_journal_release_buffer(handle_t *handle,
|
|
||||||
struct buffer_head *bh)
|
|
||||||
{
|
|
||||||
journal_release_buffer(handle, bh);
|
|
||||||
}
|
|
||||||
|
|
||||||
void ext3_journal_abort_handle(const char *caller, const char *err_fn,
|
|
||||||
struct buffer_head *bh, handle_t *handle, int err);
|
|
||||||
|
|
||||||
int __ext3_journal_get_undo_access(const char *where, handle_t *handle,
|
|
||||||
struct buffer_head *bh);
|
|
||||||
|
|
||||||
int __ext3_journal_get_write_access(const char *where, handle_t *handle,
|
|
||||||
struct buffer_head *bh);
|
|
||||||
|
|
||||||
int __ext3_journal_forget(const char *where, handle_t *handle,
|
|
||||||
struct buffer_head *bh);
|
|
||||||
|
|
||||||
int __ext3_journal_revoke(const char *where, handle_t *handle,
|
|
||||||
unsigned long blocknr, struct buffer_head *bh);
|
|
||||||
|
|
||||||
int __ext3_journal_get_create_access(const char *where,
|
|
||||||
handle_t *handle, struct buffer_head *bh);
|
|
||||||
|
|
||||||
int __ext3_journal_dirty_metadata(const char *where,
|
|
||||||
handle_t *handle, struct buffer_head *bh);
|
|
||||||
|
|
||||||
#define ext3_journal_get_undo_access(handle, bh) \
|
|
||||||
__ext3_journal_get_undo_access(__FUNCTION__, (handle), (bh))
|
|
||||||
#define ext3_journal_get_write_access(handle, bh) \
|
|
||||||
__ext3_journal_get_write_access(__FUNCTION__, (handle), (bh))
|
|
||||||
#define ext3_journal_revoke(handle, blocknr, bh) \
|
|
||||||
__ext3_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh))
|
|
||||||
#define ext3_journal_get_create_access(handle, bh) \
|
|
||||||
__ext3_journal_get_create_access(__FUNCTION__, (handle), (bh))
|
|
||||||
#define ext3_journal_dirty_metadata(handle, bh) \
|
|
||||||
__ext3_journal_dirty_metadata(__FUNCTION__, (handle), (bh))
|
|
||||||
#define ext3_journal_forget(handle, bh) \
|
|
||||||
__ext3_journal_forget(__FUNCTION__, (handle), (bh))
|
|
||||||
|
|
||||||
int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh);
|
|
||||||
|
|
||||||
handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks);
|
|
||||||
int __ext3_journal_stop(const char *where, handle_t *handle);
|
|
||||||
|
|
||||||
static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks)
|
|
||||||
{
|
|
||||||
return ext3_journal_start_sb(inode->i_sb, nblocks);
|
|
||||||
}
|
|
||||||
|
|
||||||
#define ext3_journal_stop(handle) \
|
|
||||||
__ext3_journal_stop(__FUNCTION__, (handle))
|
|
||||||
|
|
||||||
static inline handle_t *ext3_journal_current_handle(void)
|
|
||||||
{
|
|
||||||
return journal_current_handle();
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int ext3_journal_extend(handle_t *handle, int nblocks)
|
|
||||||
{
|
|
||||||
return journal_extend(handle, nblocks);
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int ext3_journal_restart(handle_t *handle, int nblocks)
|
|
||||||
{
|
|
||||||
return journal_restart(handle, nblocks);
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int ext3_journal_blocks_per_page(struct inode *inode)
|
|
||||||
{
|
|
||||||
return journal_blocks_per_page(inode);
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int ext3_journal_force_commit(journal_t *journal)
|
|
||||||
{
|
|
||||||
return journal_force_commit(journal);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* super.c */
|
|
||||||
int ext3_force_commit(struct super_block *sb);
|
|
||||||
|
|
||||||
static inline int ext3_should_journal_data(struct inode *inode)
|
|
||||||
{
|
|
||||||
if (!S_ISREG(inode->i_mode))
|
|
||||||
return 1;
|
|
||||||
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
|
|
||||||
return 1;
|
|
||||||
if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
|
|
||||||
return 1;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int ext3_should_order_data(struct inode *inode)
|
|
||||||
{
|
|
||||||
if (!S_ISREG(inode->i_mode))
|
|
||||||
return 0;
|
|
||||||
if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
|
|
||||||
return 0;
|
|
||||||
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
|
|
||||||
return 1;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int ext3_should_writeback_data(struct inode *inode)
|
|
||||||
{
|
|
||||||
if (!S_ISREG(inode->i_mode))
|
|
||||||
return 0;
|
|
||||||
if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
|
|
||||||
return 0;
|
|
||||||
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
|
|
||||||
return 1;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif /* _LINUX_EXT3_JBD_H */
|
|
||||||
Reference in New Issue
Block a user