diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ext4_fs.h | 702 | ||||
| -rw-r--r-- | include/linux/ext4_fs_i.h | 56 | ||||
| -rw-r--r-- | include/linux/ext4_fs_sb.h | 14 | ||||
| -rw-r--r-- | include/linux/ext4_jbd.h | 160 |
4 files changed, 466 insertions, 466 deletions
diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h index 11cca1bdc0c7..f582cd762caf 100644 --- a/include/linux/ext4_fs.h +++ b/include/linux/ext4_fs.h @@ -1,5 +1,5 @@ /* - * linux/include/linux/ext3_fs.h + * linux/include/linux/ext4_fs.h * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) @@ -13,8 +13,8 @@ * Copyright (C) 1991, 1992 Linus Torvalds */ -#ifndef _LINUX_EXT3_FS_H -#define _LINUX_EXT3_FS_H +#ifndef _LINUX_EXT4_FS_H +#define _LINUX_EXT4_FS_H #include <linux/types.h> #include <linux/magic.h> @@ -24,102 +24,102 @@ */ /* - * Define EXT3FS_DEBUG to produce debug messages + * Define EXT4FS_DEBUG to produce debug messages */ -#undef EXT3FS_DEBUG +#undef EXT4FS_DEBUG /* - * Define EXT3_RESERVATION to reserve data blocks for expanding files + * Define EXT4_RESERVATION to reserve data blocks for expanding files */ -#define EXT3_DEFAULT_RESERVE_BLOCKS 8 +#define EXT4_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 +#define EXT4_MAX_RESERVE_BLOCKS 1027 +#define EXT4_RESERVE_WINDOW_NOT_ALLOCATED 0 /* * Always enable hashed directories */ -#define CONFIG_EXT3_INDEX +#define CONFIG_EXT4_INDEX /* * Debug code */ -#ifdef EXT3FS_DEBUG -#define ext3_debug(f, a...) \ +#ifdef EXT4FS_DEBUG +#define ext4_debug(f, a...) \ do { \ - printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:", \ + printk (KERN_DEBUG "EXT4-fs DEBUG (%s, %d): %s:", \ __FILE__, __LINE__, __FUNCTION__); \ printk (KERN_DEBUG f, ## a); \ } while (0) #else -#define ext3_debug(f, a...) do {} while (0) +#define ext4_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 */ +#define EXT4_BAD_INO 1 /* Bad blocks inode */ +#define EXT4_ROOT_INO 2 /* Root inode */ +#define EXT4_BOOT_LOADER_INO 5 /* Boot loader inode */ +#define EXT4_UNDEL_DIR_INO 6 /* Undelete directory inode */ +#define EXT4_RESIZE_INO 7 /* Reserved group descriptors inode */ +#define EXT4_JOURNAL_INO 8 /* Journal inode */ -/* First non-reserved inode for old ext3 filesystems */ -#define EXT3_GOOD_OLD_FIRST_INO 11 +/* First non-reserved inode for old ext4 filesystems */ +#define EXT4_GOOD_OLD_FIRST_INO 11 /* * Maximal count of links to a file */ -#define EXT3_LINK_MAX 32000 +#define EXT4_LINK_MAX 32000 /* * Macro-instructions used to manage several block sizes */ -#define EXT3_MIN_BLOCK_SIZE 1024 -#define EXT3_MAX_BLOCK_SIZE 4096 -#define EXT3_MIN_BLOCK_LOG_SIZE 10 +#define EXT4_MIN_BLOCK_SIZE 1024 +#define EXT4_MAX_BLOCK_SIZE 4096 +#define EXT4_MIN_BLOCK_LOG_SIZE 10 #ifdef __KERNEL__ -# define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize) +# define EXT4_BLOCK_SIZE(s) ((s)->s_blocksize) #else -# define EXT3_BLOCK_SIZE(s) (EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size) +# define EXT4_BLOCK_SIZE(s) (EXT4_MIN_BLOCK_SIZE << (s)->s_log_block_size) #endif -#define EXT3_ADDR_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (__u32)) +#define EXT4_ADDR_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / sizeof (__u32)) #ifdef __KERNEL__ -# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits) +# define EXT4_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits) #else -# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) +# define EXT4_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) +#define EXT4_ADDR_PER_BLOCK_BITS(s) (EXT4_SB(s)->s_addr_per_block_bits) +#define EXT4_INODE_SIZE(s) (EXT4_SB(s)->s_inode_size) +#define EXT4_FIRST_INO(s) (EXT4_SB(s)->s_first_ino) #else -#define EXT3_INODE_SIZE(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \ - EXT3_GOOD_OLD_INODE_SIZE : \ +#define EXT4_INODE_SIZE(s) (((s)->s_rev_level == EXT4_GOOD_OLD_REV) ? \ + EXT4_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 : \ +#define EXT4_FIRST_INO(s) (((s)->s_rev_level == EXT4_GOOD_OLD_REV) ? \ + EXT4_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 +#define EXT4_MIN_FRAG_SIZE 1024 +#define EXT4_MAX_FRAG_SIZE 4096 +#define EXT4_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) +# define EXT4_FRAG_SIZE(s) (EXT4_SB(s)->s_frag_size) +# define EXT4_FRAGS_PER_BLOCK(s) (EXT4_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)) +# define EXT4_FRAG_SIZE(s) (EXT4_MIN_FRAG_SIZE << (s)->s_log_frag_size) +# define EXT4_FRAGS_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / EXT4_FRAG_SIZE(s)) #endif /* * Structure of a blocks group descriptor */ -struct ext3_group_desc +struct ext4_group_desc { __le32 bg_block_bitmap; /* Blocks bitmap block */ __le32 bg_inode_bitmap; /* Inodes bitmap block */ @@ -135,62 +135,62 @@ struct ext3_group_desc * 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) +# define EXT4_BLOCKS_PER_GROUP(s) (EXT4_SB(s)->s_blocks_per_group) +# define EXT4_DESC_PER_BLOCK(s) (EXT4_SB(s)->s_desc_per_block) +# define EXT4_INODES_PER_GROUP(s) (EXT4_SB(s)->s_inodes_per_group) +# define EXT4_DESC_PER_BLOCK_BITS(s) (EXT4_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) +# define EXT4_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group) +# define EXT4_DESC_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / sizeof (struct ext4_group_desc)) +# define EXT4_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) +#define EXT4_NDIR_BLOCKS 12 +#define EXT4_IND_BLOCK EXT4_NDIR_BLOCKS +#define EXT4_DIND_BLOCK (EXT4_IND_BLOCK + 1) +#define EXT4_TIND_BLOCK (EXT4_DIND_BLOCK + 1) +#define EXT4_N_BLOCKS (EXT4_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 */ +#define EXT4_SECRM_FL 0x00000001 /* Secure deletion */ +#define EXT4_UNRM_FL 0x00000002 /* Undelete */ +#define EXT4_COMPR_FL 0x00000004 /* Compress file */ +#define EXT4_SYNC_FL 0x00000008 /* Synchronous updates */ +#define EXT4_IMMUTABLE_FL 0x00000010 /* Immutable file */ +#define EXT4_APPEND_FL 0x00000020 /* writes to file may only append */ +#define EXT4_NODUMP_FL 0x00000040 /* do not dump file */ +#define EXT4_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 */ +#define EXT4_DIRTY_FL 0x00000100 +#define EXT4_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ +#define EXT4_NOCOMPR_FL 0x00000400 /* Don't compress */ +#define EXT4_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 EXT4_INDEX_FL 0x00001000 /* hash-indexed directory */ +#define EXT4_IMAGIC_FL 0x00002000 /* AFS directory */ +#define EXT4_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */ +#define EXT4_NOTAIL_FL 0x00008000 /* file tail should not be merged */ +#define EXT4_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ +#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ +#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */ -#define EXT3_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ -#define EXT3_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ +#define EXT4_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ +#define EXT4_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ /* * Inode dynamic state flags */ -#define EXT3_STATE_JDATA 0x00000001 /* journaled data exists */ -#define EXT3_STATE_NEW 0x00000002 /* inode is newly created */ -#define EXT3_STATE_XATTR 0x00000004 /* has in-inode xattrs */ +#define EXT4_STATE_JDATA 0x00000001 /* journaled data exists */ +#define EXT4_STATE_NEW 0x00000002 /* inode is newly created */ +#define EXT4_STATE_XATTR 0x00000004 /* has in-inode xattrs */ /* Used to pass group descriptor data when online resize is done */ -struct ext3_new_group_input { +struct ext4_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 */ @@ -200,8 +200,8 @@ struct ext3_new_group_input { __u16 unused; }; -/* The struct ext3_new_group_input in kernel space, with free_blocks_count */ -struct ext3_new_group_data { +/* The struct ext4_new_group_input in kernel space, with free_blocks_count */ +struct ext4_new_group_data { __u32 group; __u32 block_bitmap; __u32 inode_bitmap; @@ -216,41 +216,41 @@ struct ext3_new_group_data { /* * 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 +#define EXT4_IOC_GETFLAGS FS_IOC_GETFLAGS +#define EXT4_IOC_SETFLAGS FS_IOC_SETFLAGS +#define EXT4_IOC_GETVERSION _IOR('f', 3, long) +#define EXT4_IOC_SETVERSION _IOW('f', 4, long) +#define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long) +#define EXT4_IOC_GROUP_ADD _IOW('f', 8,struct ext4_new_group_input) +#define EXT4_IOC_GETVERSION_OLD FS_IOC_GETVERSION +#define EXT4_IOC_SETVERSION_OLD FS_IOC_SETVERSION #ifdef CONFIG_JBD_DEBUG -#define EXT3_IOC_WAIT_FOR_READONLY _IOR('f', 99, long) +#define EXT4_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) +#define EXT4_IOC_GETRSVSZ _IOR('f', 5, long) +#define EXT4_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) +#define EXT4_IOC32_GETFLAGS FS_IOC32_GETFLAGS +#define EXT4_IOC32_SETFLAGS FS_IOC32_SETFLAGS +#define EXT4_IOC32_GETVERSION _IOR('f', 3, int) +#define EXT4_IOC32_SETVERSION _IOW('f', 4, int) +#define EXT4_IOC32_GETRSVSZ _IOR('f', 5, int) +#define EXT4_IOC32_SETRSVSZ _IOW('f', 6, int) +#define EXT4_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int) #ifdef CONFIG_JBD_DEBUG -#define EXT3_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int) +#define EXT4_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 +#define EXT4_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION +#define EXT4_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION /* * Mount options */ -struct ext3_mount_options { +struct ext4_mount_options { unsigned long s_mount_opt; uid_t s_resuid; gid_t s_resgid; @@ -264,7 +264,7 @@ struct ext3_mount_options { /* * Structure of an inode on the disk */ -struct ext3_inode { +struct ext4_inode { __le16 i_mode; /* File mode */ __le16 i_uid; /* Low 16 bits of Owner Uid */ __le32 i_size; /* Size in bytes */ @@ -287,7 +287,7 @@ struct ext3_inode { __u32 m_i_reserved1; } masix1; } osd1; /* OS dependent 1 */ - __le32 i_block[EXT3_N_BLOCKS];/* Pointers to blocks */ + __le32 i_block[EXT4_N_BLOCKS];/* Pointers to blocks */ __le32 i_generation; /* File version (for NFS) */ __le32 i_file_acl; /* File ACL */ __le32 i_dir_acl; /* Directory ACL */ @@ -353,76 +353,76 @@ struct ext3_inode { /* * 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 */ +#define EXT4_VALID_FS 0x0001 /* Unmounted cleanly */ +#define EXT4_ERROR_FS 0x0002 /* Errors detected */ +#define EXT4_ORPHAN_FS 0x0004 /* Orphans being recovered */ /* * Mount flags */ -#define EXT3_MOUNT_CHECK 0x00001 /* Do mount-time checks */ -#define EXT3_MOUNT_OLDALLOC 0x00002 /* Don't use the new Orlov allocator */ -#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_NOBH 0x40000 /* No bufferheads */ -#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 */ - -/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */ +#define EXT4_MOUNT_CHECK 0x00001 /* Do mount-time checks */ +#define EXT4_MOUNT_OLDALLOC 0x00002 /* Don't use the new Orlov allocator */ +#define EXT4_MOUNT_GRPID 0x00004 /* Create files with directory's group */ +#define EXT4_MOUNT_DEBUG 0x00008 /* Some debugging messages */ +#define EXT4_MOUNT_ERRORS_CONT 0x00010 /* Continue on errors */ +#define EXT4_MOUNT_ERRORS_RO 0x00020 /* Remount fs ro on errors */ +#define EXT4_MOUNT_ERRORS_PANIC 0x00040 /* Panic on errors */ +#define EXT4_MOUNT_MINIX_DF 0x00080 /* Mimics the Minix statfs */ +#define EXT4_MOUNT_NOLOAD 0x00100 /* Don't use existing journal*/ +#define EXT4_MOUNT_ABORT 0x00200 /* Fatal error detected */ +#define EXT4_MOUNT_DATA_FLAGS 0x00C00 /* Mode for data writes: */ +#define EXT4_MOUNT_JOURNAL_DATA 0x00400 /* Write data to journal */ +#define EXT4_MOUNT_ORDERED_DATA 0x00800 /* Flush data before commit */ +#define EXT4_MOUNT_WRITEBACK_DATA 0x00C00 /* No data ordering */ +#define EXT4_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal format */ +#define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */ +#define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */ +#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */ +#define EXT4_MOUNT_RESERVATION 0x10000 /* Preallocation */ +#define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */ +#define EXT4_MOUNT_NOBH 0x40000 /* No bufferheads */ +#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */ +#define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */ +#define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */ + +/* Compatibility, for having both ext2_fs.h and ext4_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) +#define clear_opt(o, opt) o &= ~EXT4_MOUNT_##opt +#define set_opt(o, opt) o |= EXT4_MOUNT_##opt +#define test_opt(sb, opt) (EXT4_SB(sb)->s_mount_opt & \ + EXT4_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 +#define EXT2_MOUNT_NOLOAD EXT4_MOUNT_NOLOAD +#define EXT2_MOUNT_ABORT EXT4_MOUNT_ABORT +#define EXT2_MOUNT_DATA_FLAGS EXT4_MOUNT_DATA_FLAGS #endif -#define ext3_set_bit ext2_set_bit -#define ext3_set_bit_atomic ext2_set_bit_atomic -#define ext3_clear_bit ext2_clear_bit -#define ext3_clear_bit_atomic ext2_clear_bit_atomic -#define ext3_test_bit ext2_test_bit -#define ext3_find_first_zero_bit ext2_find_first_zero_bit -#define ext3_find_next_zero_bit ext2_find_next_zero_bit +#define ext4_set_bit ext2_set_bit +#define ext4_set_bit_atomic ext2_set_bit_atomic +#define ext4_clear_bit ext2_clear_bit +#define ext4_clear_bit_atomic ext2_clear_bit_atomic +#define ext4_test_bit ext2_test_bit +#define ext4_find_first_zero_bit ext2_find_first_zero_bit +#define ext4_find_next_zero_bit ext2_find_next_zero_bit /* * 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 */ +#define EXT4_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */ +#define EXT4_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 +#define EXT4_ERRORS_CONTINUE 1 /* Continue execution */ +#define EXT4_ERRORS_RO 2 /* Remount fs read-only */ +#define EXT4_ERRORS_PANIC 3 /* Panic */ +#define EXT4_ERRORS_DEFAULT EXT4_ERRORS_CONTINUE /* * Structure of the super block */ -struct ext3_super_block { +struct ext4_super_block { /*00*/ __le32 s_inodes_count; /* Inodes count */ __le32 s_blocks_count; /* Blocks count */ __le32 s_r_blocks_count; /* Reserved blocks count */ @@ -449,7 +449,7 @@ struct ext3_super_block { /*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. + * These fields are for EXT4_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 @@ -473,13 +473,13 @@ struct ext3_super_block { /*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. + * happen if the EXT4_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. + * Journaling support valid if EXT4_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 */ @@ -495,186 +495,186 @@ struct ext3_super_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) +#include <linux/ext4_fs_i.h> +#include <linux/ext4_fs_sb.h> +static inline struct ext4_sb_info * EXT4_SB(struct super_block *sb) { return sb->s_fs_info; } -static inline struct ext3_inode_info *EXT3_I(struct inode *inode) +static inline struct ext4_inode_info *EXT4_I(struct inode *inode) { - return container_of(inode, struct ext3_inode_info, vfs_inode); + return container_of(inode, struct ext4_inode_info, vfs_inode); } -static inline int ext3_valid_inum(struct super_block *sb, unsigned long ino) +static inline int ext4_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)); + return ino == EXT4_ROOT_INO || + ino == EXT4_JOURNAL_INO || + ino == EXT4_RESIZE_INO || + (ino >= EXT4_FIRST_INO(sb) && + ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count)); } #else -/* Assume that user mode programs are passing in an ext3fs superblock, not +/* Assume that user mode programs are passing in an ext4fs 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) +#define EXT4_SB(sb) (sb) #endif -#define NEXT_ORPHAN(inode) EXT3_I(inode)->i_dtime +#define NEXT_ORPHAN(inode) EXT4_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 +#define EXT4_OS_LINUX 0 +#define EXT4_OS_HURD 1 +#define EXT4_OS_MASIX 2 +#define EXT4_OS_FREEBSD 3 +#define EXT4_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 EXT4_GOOD_OLD_REV 0 /* The good old (original) format */ +#define EXT4_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 EXT4_CURRENT_REV EXT4_GOOD_OLD_REV +#define EXT4_MAX_SUPP_REV EXT4_DYNAMIC_REV -#define EXT3_GOOD_OLD_INODE_SIZE 128 +#define EXT4_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) +#define EXT4_HAS_COMPAT_FEATURE(sb,mask) \ + ( EXT4_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) ) +#define EXT4_HAS_RO_COMPAT_FEATURE(sb,mask) \ + ( EXT4_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) ) +#define EXT4_HAS_INCOMPAT_FEATURE(sb,mask) \ + ( EXT4_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) ) +#define EXT4_SET_COMPAT_FEATURE(sb,mask) \ + EXT4_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask) +#define EXT4_SET_RO_COMPAT_FEATURE(sb,mask) \ + EXT4_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask) +#define EXT4_SET_INCOMPAT_FEATURE(sb,mask) \ + EXT4_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask) +#define EXT4_CLEAR_COMPAT_FEATURE(sb,mask) \ + EXT4_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask) +#define EXT4_CLEAR_RO_COMPAT_FEATURE(sb,mask) \ + EXT4_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask) +#define EXT4_CLEAR_INCOMPAT_FEATURE(sb,mask) \ + EXT4_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask) + +#define EXT4_FEATURE_COMPAT_DIR_PREALLOC 0x0001 +#define EXT4_FEATURE_COMPAT_IMAGIC_INODES 0x0002 +#define EXT4_FEATURE_COMPAT_HAS_JOURNAL 0x0004 +#define EXT4_FEATURE_COMPAT_EXT_ATTR 0x0008 +#define EXT4_FEATURE_COMPAT_RESIZE_INODE 0x0010 +#define EXT4_FEATURE_COMPAT_DIR_INDEX 0x0020 + +#define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 +#define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002 +#define EXT4_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 + +#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001 +#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002 +#define EXT4_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */ +#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */ +#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010 + +#define EXT4_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR +#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \ + EXT4_FEATURE_INCOMPAT_RECOVER| \ + EXT4_FEATURE_INCOMPAT_META_BG) +#define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ + EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ + EXT4_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 +#define EXT4_DEF_RESUID 0 +#define EXT4_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 +#define EXT4_DEFM_DEBUG 0x0001 +#define EXT4_DEFM_BSDGROUPS 0x0002 +#define EXT4_DEFM_XATTR_USER 0x0004 +#define EXT4_DEFM_ACL 0x0008 +#define EXT4_DEFM_UID16 0x0010 +#define EXT4_DEFM_JMODE 0x0060 +#define EXT4_DEFM_JMODE_DATA 0x0020 +#define EXT4_DEFM_JMODE_ORDERED 0x0040 +#define EXT4_DEFM_JMODE_WBACK 0x0060 /* * Structure of a directory entry */ -#define EXT3_NAME_LEN 255 +#define EXT4_NAME_LEN 255 -struct ext3_dir_entry { +struct ext4_dir_entry { __le32 inode; /* Inode number */ __le16 rec_len; /* Directory entry length */ __le16 name_len; /* Name length */ - char name[EXT3_NAME_LEN]; /* File name */ + char name[EXT4_NAME_LEN]; /* File name */ }; /* - * The new version of the directory entry. Since EXT3 structures are + * The new version of the directory entry. Since EXT4 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 { +struct ext4_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 */ + char name[EXT4_NAME_LEN]; /* File name */ }; /* - * Ext3 directory file types. Only the low 3 bits are used. The + * Ext4 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 EXT4_FT_UNKNOWN 0 +#define EXT4_FT_REG_FILE 1 +#define EXT4_FT_DIR 2 +#define EXT4_FT_CHRDEV 3 +#define EXT4_FT_BLKDEV 4 +#define EXT4_FT_FIFO 5 +#define EXT4_FT_SOCK 6 +#define EXT4_FT_SYMLINK 7 -#define EXT3_FT_MAX 8 +#define EXT4_FT_MAX 8 /* - * EXT3_DIR_PAD defines the directory entries boundaries + * EXT4_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 EXT4_DIR_PAD 4 +#define EXT4_DIR_ROUND (EXT4_DIR_PAD - 1) +#define EXT4_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT4_DIR_ROUND) & \ + ~EXT4_DIR_ROUND) /* * Hash Tree Directory indexing * (c) Daniel Phillips, 2001 */ -#ifdef CONFIG_EXT3_INDEX - #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) +#ifdef CONFIG_EXT4_INDEX + #define is_dx(dir) (EXT4_HAS_COMPAT_FEATURE(dir->i_sb, \ + EXT4_FEATURE_COMPAT_DIR_INDEX) && \ + (EXT4_I(dir)->i_flags & EXT4_INDEX_FL)) +#define EXT4_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT4_LINK_MAX) +#define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1) #else #define is_dx(dir) 0 -#define EXT3_DIR_LINK_MAX(dir) ((dir)->i_nlink >= EXT3_LINK_MAX) -#define EXT3_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2) +#define EXT4_DIR_LINK_MAX(dir) ((dir)->i_nlink >= EXT4_LINK_MAX) +#define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2) #endif /* Legal values for the dx_root hash_version field: */ @@ -694,10 +694,10 @@ struct dx_hash_info u32 *seed; }; -#define EXT3_HTREE_EOF 0x7fffffff +#define EXT4_HTREE_EOF 0x7fffffff /* - * Control parameters used by ext3_htree_next_block + * Control parameters used by ext4_htree_next_block */ #define HASH_NB_ALWAYS 1 @@ -705,16 +705,16 @@ struct dx_hash_info /* * Describe an inode's exact location on disk and in memory */ -struct ext3_iloc +struct ext4_iloc { struct buffer_head *bh; unsigned long offset; unsigned long block_group; }; -static inline struct ext3_inode *ext3_raw_inode(struct ext3_iloc *iloc) +static inline struct ext4_inode *ext4_raw_inode(struct ext4_iloc *iloc) { - return (struct ext3_inode *) (iloc->bh->b_data + iloc->offset); + return (struct ext4_inode *) (iloc->bh->b_data + iloc->offset); } /* @@ -733,11 +733,11 @@ struct dir_private_info { }; /* 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) +static inline ext4_fsblk_t +ext4_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); + return group_no * (ext4_fsblk_t)EXT4_BLOCKS_PER_GROUP(sb) + + le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block); } /* @@ -751,113 +751,113 @@ ext3_group_first_block_no(struct super_block *sb, unsigned long group_no) /* * 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. + * ext4 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, +extern int ext4_bg_has_super(struct super_block *sb, int group); +extern unsigned long ext4_bg_num_gdb(struct super_block *sb, int group); +extern ext4_fsblk_t ext4_new_block (handle_t *handle, struct inode *inode, + ext4_fsblk_t goal, int *errp); +extern ext4_fsblk_t ext4_new_blocks (handle_t *handle, struct inode *inode, + ext4_fsblk_t goal, unsigned long *count, int *errp); +extern void ext4_free_blocks (handle_t *handle, struct inode *inode, + ext4_fsblk_t block, unsigned long count); +extern void ext4_free_blocks_sb (handle_t *handle, struct super_block *sb, + ext4_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, +extern ext4_fsblk_t ext4_count_free_blocks (struct super_block *); +extern void ext4_check_blocks_bitmap (struct super_block *); +extern struct ext4_group_desc * ext4_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 ext4_should_retry_alloc(struct super_block *sb, int *retries); +extern void ext4_init_block_alloc_info(struct inode *); +extern void ext4_rsv_window_add(struct super_block *sb, struct ext4_reserve_window_node *rsv); /* dir.c */ -extern int ext3_check_dir_entry(const char *, struct inode *, - struct ext3_dir_entry_2 *, +extern int ext4_check_dir_entry(const char *, struct inode *, + struct ext4_dir_entry_2 *, struct buffer_head *, unsigned long); -extern int ext3_htree_store_dirent(struct file *dir_file, __u32 hash, +extern int ext4_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); + struct ext4_dir_entry_2 *dirent); +extern void ext4_htree_free_dir_info(struct dir_private_info *p); /* fsync.c */ -extern int ext3_sync_file (struct file *, struct dentry *, int); +extern int ext4_sync_file (struct file *, struct dentry *, int); /* hash.c */ -extern int ext3fs_dirhash(const char *name, int len, struct +extern int ext4fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo); /* ialloc.c */ -extern struct inode * ext3_new_inode (handle_t *, struct inode *, int); -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); +extern struct inode * ext4_new_inode (handle_t *, struct inode *, int); +extern void ext4_free_inode (handle_t *, struct inode *); +extern struct inode * ext4_orphan_get (struct super_block *, unsigned long); +extern unsigned long ext4_count_free_inodes (struct super_block *); +extern unsigned long ext4_count_dirs (struct super_block *); +extern void ext4_check_inodes_bitmap (struct super_block *); +extern unsigned long ext4_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, +int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode, + struct buffer_head *bh, ext4_fsblk_t blocknr); +struct buffer_head * ext4_getblk (handle_t *, struct inode *, long, int, int *); +struct buffer_head * ext4_bread (handle_t *, struct inode *, int, int, int *); +int ext4_get_blocks_handle(handle_t *handle, struct inode *inode, sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result, int create, int extend_disksize); -extern void ext3_read_inode (struct inode *); -extern int ext3_write_inode (struct inode *, int); -extern int ext3_setattr (struct dentry *, struct iattr *); -extern void ext3_delete_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 *); -extern int ext3_change_inode_journal_flag(struct inode *, int); -extern int ext3_get_inode_loc(struct inode *, struct ext3_iloc *); -extern void ext3_truncate (struct inode *); -extern void ext3_set_inode_flags(struct inode *); -extern void ext3_set_aops(struct inode *inode); +extern void ext4_read_inode (struct inode *); +extern int ext4_write_inode (struct inode *, int); +extern int ext4_setattr (struct dentry *, struct iattr *); +extern void ext4_delete_inode (struct inode *); +extern int ext4_sync_inode (handle_t *, struct inode *); +extern void ext4_discard_reservation (struct inode *); +extern void ext4_dirty_inode(struct inode *); +extern int ext4_change_inode_journal_flag(struct inode *, int); +extern int ext4_get_inode_loc(struct inode *, struct ext4_iloc *); +extern void ext4_truncate (struct inode *); +extern void ext4_set_inode_flags(struct inode *); +extern void ext4_set_aops(struct inode *inode); /* ioctl.c */ -extern int ext3_ioctl (struct inode *, struct file *, unsigned int, +extern int ext4_ioctl (struct inode *, struct file *, unsigned int, unsigned long); -extern long ext3_compat_ioctl (struct file *, unsigned int, unsigned long); +extern long ext4_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, +extern int ext4_orphan_add(handle_t *, struct inode *); +extern int ext4_orphan_del(handle_t *, struct inode *); +extern int ext4_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); +extern int ext4_group_add(struct super_block *sb, + struct ext4_new_group_data *input); +extern int ext4_group_extend(struct super_block *sb, + struct ext4_super_block *es, + ext4_fsblk_t n_blocks_count); /* super.c */ -extern void ext3_error (struct super_block *, const char *, const char *, ...) +extern void ext4_error (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); -extern void __ext3_std_error (struct super_block *, const char *, int); -extern void ext3_abort (struct super_block *, const char *, const char *, ...) +extern void __ext4_std_error (struct super_block *, const char *, int); +extern void ext4_abort (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); -extern void ext3_warning (struct super_block *, const char *, const char *, ...) +extern void ext4_warning (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4))); -extern void ext3_update_dynamic_rev (struct super_block *sb); +extern void ext4_update_dynamic_rev (struct super_block *sb); -#define ext3_std_error(sb, errno) \ +#define ext4_std_error(sb, errno) \ do { \ if ((errno)) \ - __ext3_std_error((sb), __FUNCTION__, (errno)); \ + __ext4_std_error((sb), __FUNCTION__, (errno)); \ } while (0) /* @@ -865,21 +865,21 @@ do { \ */ /* dir.c */ -extern const struct file_operations ext3_dir_operations; +extern const struct file_operations ext4_dir_operations; /* file.c */ -extern struct inode_operations ext3_file_inode_operations; -extern const struct file_operations ext3_file_operations; +extern struct inode_operations ext4_file_inode_operations; +extern const struct file_operations ext4_file_operations; /* namei.c */ -extern struct inode_operations ext3_dir_inode_operations; -extern struct inode_operations ext3_special_inode_operations; +extern struct inode_operations ext4_dir_inode_operations; +extern struct inode_operations ext4_special_inode_operations; /* symlink.c */ -extern struct inode_operations ext3_symlink_inode_operations; -extern struct inode_operations ext3_fast_symlink_inode_operations; +extern struct inode_operations ext4_symlink_inode_operations; +extern struct inode_operations ext4_fast_symlink_inode_operations; #endif /* __KERNEL__ */ -#endif /* _LINUX_EXT3_FS_H */ +#endif /* _LINUX_EXT4_FS_H */ diff --git a/include/linux/ext4_fs_i.h b/include/linux/ext4_fs_i.h index 4395e5206746..18a6ce98537f 100644 --- a/include/linux/ext4_fs_i.h +++ b/include/linux/ext4_fs_i.h @@ -1,5 +1,5 @@ /* - * linux/include/linux/ext3_fs_i.h + * linux/include/linux/ext4_fs_i.h * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) @@ -13,8 +13,8 @@ * Copyright (C) 1991, 1992 Linus Torvalds */ -#ifndef _LINUX_EXT3_FS_I -#define _LINUX_EXT3_FS_I +#ifndef _LINUX_EXT4_FS_I +#define _LINUX_EXT4_FS_I #include <linux/rwsem.h> #include <linux/rbtree.h> @@ -22,43 +22,43 @@ #include <linux/mutex.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 ext3_fsblk_t; +typedef unsigned long ext4_fsblk_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 ext4_reserve_window { + ext4_fsblk_t _rsv_start; /* First byte reserved */ + ext4_fsblk_t _rsv_end; /* Last byte reserved or 0 */ }; -struct ext3_reserve_window_node { +struct ext4_reserve_window_node { struct rb_node rsv_node; __u32 rsv_goal_size; __u32 rsv_alloc_hit; - struct ext3_reserve_window rsv_window; + struct ext4_reserve_window rsv_window; }; -struct ext3_block_alloc_info { +struct ext4_block_alloc_info { /* information about reservation window */ - struct ext3_reserve_window_node rsv_window_node; + struct ext4_reserve_window_node rsv_window_node; /* - * was i_next_alloc_block in ext3_inode_info + * was i_next_alloc_block in ext4_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 + * Was i_next_alloc_goal in ext4_inode_info * is the *physical* companion to i_next_alloc_block. * it the 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; + ext4_fsblk_t last_alloc_physical_block; }; #define rsv_start rsv_window._rsv_start @@ -67,15 +67,15 @@ struct ext3_block_alloc_info { /* * third extended file system inode data in memory */ -struct ext3_inode_info { +struct ext4_inode_info { __le32 i_data[15]; /* unconverted */ __u32 i_flags; -#ifdef EXT3_FRAGMENTS +#ifdef EXT4_FRAGMENTS __u32 i_faddr; __u8 i_frag_no; __u8 i_frag_size; #endif - ext3_fsblk_t i_file_acl; + ext4_fsblk_t i_file_acl; __u32 i_dir_acl; __u32 i_dtime; @@ -87,13 +87,13 @@ struct ext3_inode_info { * near to their parent directory's inode. */ __u32 i_block_group; - __u32 i_state; /* Dynamic state flags for ext3 */ + __u32 i_state; /* Dynamic state flags for ext4 */ /* block reservation info */ - struct ext3_block_alloc_info *i_block_alloc_info; + struct ext4_block_alloc_info *i_block_alloc_info; __u32 i_dir_start_lookup; -#ifdef CONFIG_EXT3_FS_XATTR +#ifdef CONFIG_EXT4DEV_FS_XATTR /* * Extended attributes can be read independently of the main file * data. Taking i_mutex even when reading would cause contention @@ -103,7 +103,7 @@ struct ext3_inode_info { */ struct rw_semaphore xattr_sem; #endif -#ifdef CONFIG_EXT3_FS_POSIX_ACL +#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL struct posix_acl *i_acl; struct posix_acl *i_default_acl; #endif @@ -113,7 +113,7 @@ struct ext3_inode_info { /* * 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 + * the VFS prior to calling ext4_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 @@ -123,7 +123,7 @@ struct ext3_inode_info { * * 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). + * are ext4_get_block (growth) and ext4_truncate (shrinkth). */ loff_t i_disksize; @@ -131,10 +131,10 @@ struct ext3_inode_info { __u16 i_extra_isize; /* - * truncate_mutex is for serialising ext3_truncate() against - * ext3_getblock(). In the 2.4 ext2 design, great chunks of inode's + * truncate_mutex is for serialising ext4_truncate() against + * ext4_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 + * ext4 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 @@ -144,4 +144,4 @@ struct ext3_inode_info { struct inode vfs_inode; }; -#endif /* _LINUX_EXT3_FS_I */ +#endif /* _LINUX_EXT4_FS_I */ diff --git a/include/linux/ext4_fs_sb.h b/include/linux/ext4_fs_sb.h index f61309c81cc4..ce4856d70100 100644 --- a/include/linux/ext4_fs_sb.h +++ b/include/linux/ext4_fs_sb.h @@ -1,5 +1,5 @@ /* - * linux/include/linux/ext3_fs_sb.h + * linux/include/linux/ext4_fs_sb.h * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) @@ -13,8 +13,8 @@ * Copyright (C) 1991, 1992 Linus Torvalds */ -#ifndef _LINUX_EXT3_FS_SB -#define _LINUX_EXT3_FS_SB +#ifndef _LINUX_EXT4_FS_SB +#define _LINUX_EXT4_FS_SB #ifdef __KERNEL__ #include <linux/timer.h> @@ -27,7 +27,7 @@ /* * third extended-fs super-block data in memory */ -struct ext3_sb_info { +struct ext4_sb_info { unsigned long s_frag_size; /* Size of a fragment in bytes */ unsigned long s_frags_per_block;/* Number of fragments per block */ unsigned long s_inodes_per_block;/* Number of inodes per block */ @@ -39,7 +39,7 @@ struct ext3_sb_info { unsigned long s_desc_per_block; /* Number of group descriptors per block */ unsigned long s_groups_count; /* Number of groups in the fs */ struct buffer_head * s_sbh; /* Buffer containing the super block */ - struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */ + struct ext4_super_block * s_es; /* Pointer to the super block in the buffer */ struct buffer_head ** s_group_desc; unsigned long s_mount_opt; uid_t s_resuid; @@ -62,7 +62,7 @@ struct ext3_sb_info { /* root of the per fs reservation window tree */ spinlock_t s_rsv_window_lock; struct rb_root s_rsv_window_root; - struct ext3_reserve_window_node s_rsv_window_head; + struct ext4_reserve_window_node s_rsv_window_head; /* Journaling */ struct inode * s_journal_inode; @@ -80,4 +80,4 @@ struct ext3_sb_info { #endif }; -#endif /* _LINUX_EXT3_FS_SB */ +#endif /* _LINUX_EXT4_FS_SB */ diff --git a/include/linux/ext4_jbd.h b/include/linux/ext4_jbd.h index ce0e6109aff0..3dbf6c779037 100644 --- a/include/linux/ext4_jbd.h +++ b/include/linux/ext4_jbd.h @@ -1,5 +1,5 @@ /* - * linux/include/linux/ext3_jbd.h + * linux/include/linux/ext4_jbd.h * * Written by Stephen C. Tweedie <sct@redhat.com>, 1999 * @@ -9,17 +9,17 @@ * 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. + * Ext4-specific journaling extensions. */ -#ifndef _LINUX_EXT3_JBD_H -#define _LINUX_EXT3_JBD_H +#ifndef _LINUX_EXT4_JBD_H +#define _LINUX_EXT4_JBD_H #include <linux/fs.h> #include <linux/jbd.h> -#include <linux/ext3_fs.h> +#include <linux/ext4_fs.h> -#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal) +#define EXT4_JOURNAL(inode) (EXT4_SB((inode)->i_sb)->s_journal) /* Define the number of blocks we need to account to a transaction to * modify one block of data. @@ -28,13 +28,13 @@ * indirection blocks, the group and superblock summaries, and the data * block to complete the transaction. */ -#define EXT3_SINGLEDATA_TRANS_BLOCKS 8U +#define EXT4_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 EXT4_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 @@ -42,15 +42,15 @@ * 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)) +#define EXT4_DATA_TRANS_BLOCKS(sb) (EXT4_SINGLEDATA_TRANS_BLOCKS + \ + EXT4_XATTR_TRANS_BLOCKS - 2 + \ + 2*EXT4_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 EXT4_DELETE_TRANS_BLOCKS(sb) (2 * EXT4_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 @@ -58,7 +58,7 @@ * start off at the maximum transaction size and grow the transaction * optimistically as we go. */ -#define EXT3_MAX_TRANS_DATA 64U +#define EXT4_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 @@ -67,202 +67,202 @@ * one block, plus two quota updates. Quota allocations are not * needed. */ -#define EXT3_RESERVE_TRANS_BLOCKS 12U +#define EXT4_RESERVE_TRANS_BLOCKS 12U -#define EXT3_INDEX_EXTRA_TRANS_BLOCKS 8 +#define EXT4_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) +#define EXT4_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) +#define EXT4_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\ + (EXT4_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0) +#define EXT4_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\ + (EXT4_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 +#define EXT4_QUOTA_TRANS_BLOCKS(sb) 0 +#define EXT4_QUOTA_INIT_BLOCKS(sb) 0 +#define EXT4_QUOTA_DEL_BLOCKS(sb) 0 #endif int -ext3_mark_iloc_dirty(handle_t *handle, +ext4_mark_iloc_dirty(handle_t *handle, struct inode *inode, - struct ext3_iloc *iloc); + struct ext4_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 ext4_reserve_inode_write(handle_t *handle, struct inode *inode, + struct ext4_iloc *iloc); -int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode); +int ext4_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 + * Wrapper functions with which ext4 calls into JBD. The intent here is + * to allow these to be turned into appropriate stubs so ext4 can control + * ext2 filesystems, so ext2+ext4 systems only nee one fs. This work hasn't * been done yet. */ -void ext3_journal_abort_handle(const char *caller, const char *err_fn, +void ext4_journal_abort_handle(const char *caller, const char *err_fn, struct buffer_head *bh, handle_t *handle, int err); static inline int -__ext3_journal_get_undo_access(const char *where, handle_t *handle, +__ext4_journal_get_undo_access(const char *where, handle_t *handle, struct buffer_head *bh) { int err = journal_get_undo_access(handle, bh); if (err) - ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err); + ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err); return err; } static inline int -__ext3_journal_get_write_access(const char *where, handle_t *handle, +__ext4_journal_get_write_access(const char *where, handle_t *handle, struct buffer_head *bh) { int err = journal_get_write_access(handle, bh); if (err) - ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err); + ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err); return err; } static inline void -ext3_journal_release_buffer(handle_t *handle, struct buffer_head *bh) +ext4_journal_release_buffer(handle_t *handle, struct buffer_head *bh) { journal_release_buffer(handle, bh); } static inline int -__ext3_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh) +__ext4_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh) { int err = journal_forget(handle, bh); if (err) - ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err); + ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err); return err; } static inline int -__ext3_journal_revoke(const char *where, handle_t *handle, +__ext4_journal_revoke(const char *where, handle_t *handle, unsigned long blocknr, struct buffer_head *bh) { int err = journal_revoke(handle, blocknr, bh); if (err) - ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err); + ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err); return err; } static inline int -__ext3_journal_get_create_access(const char *where, +__ext4_journal_get_create_access(const char *where, handle_t *handle, struct buffer_head *bh) { int err = journal_get_create_access(handle, bh); if (err) - ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err); + ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err); return err; } static inline int -__ext3_journal_dirty_metadata(const char *where, +__ext4_journal_dirty_metadata(const char *where, handle_t *handle, struct buffer_head *bh) { int err = journal_dirty_metadata(handle, bh); if (err) - ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err); + ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err); return err; } -#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)) +#define ext4_journal_get_undo_access(handle, bh) \ + __ext4_journal_get_undo_access(__FUNCTION__, (handle), (bh)) +#define ext4_journal_get_write_access(handle, bh) \ + __ext4_journal_get_write_access(__FUNCTION__, (handle), (bh)) +#define ext4_journal_revoke(handle, blocknr, bh) \ + __ext4_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh)) +#define ext4_journal_get_create_access(handle, bh) \ + __ext4_journal_get_create_access(__FUNCTION__, (handle), (bh)) +#define ext4_journal_dirty_metadata(handle, bh) \ + __ext4_journal_dirty_metadata(__FUNCTION__, (handle), (bh)) +#define ext4_journal_forget(handle, bh) \ + __ext4_journal_forget(__FUNCTION__, (handle), (bh)) -int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh); +int ext4_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); +handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks); +int __ext4_journal_stop(const char *where, handle_t *handle); -static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks) +static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks) { - return ext3_journal_start_sb(inode->i_sb, nblocks); + return ext4_journal_start_sb(inode->i_sb, nblocks); } -#define ext3_journal_stop(handle) \ - __ext3_journal_stop(__FUNCTION__, (handle)) +#define ext4_journal_stop(handle) \ + __ext4_journal_stop(__FUNCTION__, (handle)) -static inline handle_t *ext3_journal_current_handle(void) +static inline handle_t *ext4_journal_current_handle(void) { return journal_current_handle(); } -static inline int ext3_journal_extend(handle_t *handle, int nblocks) +static inline int ext4_journal_extend(handle_t *handle, int nblocks) { return journal_extend(handle, nblocks); } -static inline int ext3_journal_restart(handle_t *handle, int nblocks) +static inline int ext4_journal_restart(handle_t *handle, int nblocks) { return journal_restart(handle, nblocks); } -static inline int ext3_journal_blocks_per_page(struct inode *inode) +static inline int ext4_journal_blocks_per_page(struct inode *inode) { return journal_blocks_per_page(inode); } -static inline int ext3_journal_force_commit(journal_t *journal) +static inline int ext4_journal_force_commit(journal_t *journal) { return journal_force_commit(journal); } /* super.c */ -int ext3_force_commit(struct super_block *sb); +int ext4_force_commit(struct super_block *sb); -static inline int ext3_should_journal_data(struct inode *inode) +static inline int ext4_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) + if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) return 1; - if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) + if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL) return 1; return 0; } -static inline int ext3_should_order_data(struct inode *inode) +static inline int ext4_should_order_data(struct inode *inode) { if (!S_ISREG(inode->i_mode)) return 0; - if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) + if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL) return 0; - if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA) + if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) return 1; return 0; } -static inline int ext3_should_writeback_data(struct inode *inode) +static inline int ext4_should_writeback_data(struct inode *inode) { if (!S_ISREG(inode->i_mode)) return 0; - if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL) + if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL) return 0; - if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA) + if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA) return 1; return 0; } -#endif /* _LINUX_EXT3_JBD_H */ +#endif /* _LINUX_EXT4_JBD_H */ |