diff options
Diffstat (limited to 'sys/gnu/fs/ext2fs/ext2_fs.h')
| -rw-r--r-- | sys/gnu/fs/ext2fs/ext2_fs.h | 88 |
1 files changed, 40 insertions, 48 deletions
diff --git a/sys/gnu/fs/ext2fs/ext2_fs.h b/sys/gnu/fs/ext2fs/ext2_fs.h index c1d6ffd..8a4081e 100644 --- a/sys/gnu/fs/ext2fs/ext2_fs.h +++ b/sys/gnu/fs/ext2fs/ext2_fs.h @@ -52,6 +52,8 @@ #define umode_t mode_t #define loff_t off_t +#define cpu_to_le32(x) htole32(x) + /* * The second extended filesystem constants/structures */ @@ -87,12 +89,10 @@ #endif /* - * Special inodes numbers + * Special inode numbers */ #define EXT2_BAD_INO 1 /* Bad blocks inode */ #define EXT2_ROOT_INO 2 /* Root inode */ -#define EXT2_ACL_IDX_INO 3 /* ACL inode */ -#define EXT2_ACL_DATA_INO 4 /* ACL inode */ #define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */ #define EXT2_UNDEL_DIR_INO 6 /* Undelete directory inode */ @@ -104,17 +104,29 @@ */ #define EXT2_SUPER_MAGIC 0xEF53 +#ifdef __KERNEL__ +#include <linux/ext2_fs_sb.h> +static inline struct ext2_sb_info *EXT2_SB(struct super_block *sb) +{ + return sb->s_fs_info; +} +#elif defined(_KERNEL) /* - * Maximal count of links to a file + * FreeBSD passes the pointer to the in-core struct with relevant + * fields to EXT2_SB macro when accessing superblock fields. */ -#define EXT2_LINK_MAX 32000 +#define EXT2_SB(sb) (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 /* - * Note: under FreeBSD, the "user" versions of the following macros are - * used (and must be used) in most cases, because ((s)->u.ext2_sb.s_es is - * not accessible. This depends on __KERNEL__ not being defined for - * kernel builds under FreeBSD. + * Maximal count of links to a file */ +#define EXT2_LINK_MAX 32000 /* * Macro-instructions used to manage several block sizes @@ -122,23 +134,22 @@ #define EXT2_MIN_BLOCK_SIZE 1024 #define EXT2_MAX_BLOCK_SIZE 4096 #define EXT2_MIN_BLOCK_LOG_SIZE 10 -#if defined(__KERNEL__) || (defined(__FreeBSD__) && defined(_KERNEL)) +#if defined(__KERNEL__) || defined(_KERNEL) # define EXT2_BLOCK_SIZE(s) ((s)->s_blocksize) #else # define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size) #endif -#define EXT2_ACLE_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_acl_entry)) #define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (__u32)) -#ifdef __KERNEL__ +#if defined(__KERNEL__) || defined(_KERNEL) # define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits) #else # define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) #endif -#ifdef notyet -#ifdef __KERNEL__ -#define EXT2_ADDR_PER_BLOCK_BITS(s) ((s)->u.ext2_sb.s_addr_per_block_bits) -#define EXT2_INODE_SIZE(s) ((s)->u.ext2_sb.s_inode_size) -#define EXT2_FIRST_INO(s) ((s)->u.ext2_sb.s_first_ino) +#if defined(__KERNEL__) || defined(_KERNEL) +#define EXT2_ADDR_PER_BLOCK_BITS(s) (EXT2_SB(s)->s_addr_per_block_bits) +#define EXT2_INODE_SIZE(s) (EXT2_SB(s)->s_inode_size) +#define EXT2_FIRST_INO(s) (EXT2_SB(s)->s_first_ino) +#define EXT2_INODES_PER_BLOCK(s) ((s)->s_inodes_per_block) #else #define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \ EXT2_GOOD_OLD_INODE_SIZE : \ @@ -147,12 +158,6 @@ EXT2_GOOD_OLD_FIRST_INO : \ (s)->s_first_ino) #endif -#else /* !notyet */ -#define EXT2_INODES_PER_BLOCK(s) ((s)->s_inodes_per_block) -/* Should be sizeof(struct ext2_inode): */ -#define EXT2_INODE_SIZE(s) ((s)->s_inode_size) -#define EXT2_FIRST_INO(s) ((s)->s_first_inode) -#endif /* notyet */ /* * Macro-instructions used to manage fragments @@ -160,15 +165,11 @@ #define EXT2_MIN_FRAG_SIZE 1024 #define EXT2_MAX_FRAG_SIZE 4096 #define EXT2_MIN_FRAG_LOG_SIZE 10 -#ifdef __KERNEL__ -# define EXT2_FRAG_SIZE(s) ((s)->u.ext2_sb.s_frag_size) -# define EXT2_FRAGS_PER_BLOCK(s) ((s)->u.ext2_sb.s_frags_per_block) +#if defined(__KERNEL__) || defined(_KERNEL) +# define EXT2_FRAG_SIZE(s) (EXT2_SB(s)->s_frag_size) +# define EXT2_FRAGS_PER_BLOCK(s) (EXT2_SB(s)->s_frags_per_block) #else -# if defined(_KERNEL) && defined(__FreeBSD__) -# define EXT2_FRAG_SIZE(s) ((s)->s_frag_size) -# else # define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size) -# endif # define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s)) #endif @@ -212,11 +213,11 @@ struct ext2_group_desc /* * Macro-instructions used to manage group descriptors */ -#ifdef __KERNEL__ -# define EXT2_BLOCKS_PER_GROUP(s) ((s)->u.ext2_sb.s_blocks_per_group) -# define EXT2_DESC_PER_BLOCK(s) ((s)->u.ext2_sb.s_desc_per_block) -# define EXT2_INODES_PER_GROUP(s) ((s)->u.ext2_sb.s_inodes_per_group) -# define EXT2_DESC_PER_BLOCK_BITS(s) ((s)->u.ext2_sb.s_desc_per_block_bits) +#if defined(__KERNEL__) || defined(_KERNEL) +# define EXT2_BLOCKS_PER_GROUP(s) (EXT2_SB(s)->s_blocks_per_group) +# define EXT2_DESC_PER_BLOCK(s) (EXT2_SB(s)->s_desc_per_block) +# define EXT2_INODES_PER_GROUP(s) (EXT2_SB(s)->s_inodes_per_group) +# define EXT2_DESC_PER_BLOCK_BITS(s) (EXT2_SB(s)->s_desc_per_block_bits) #else # define EXT2_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group) # define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc)) @@ -366,7 +367,7 @@ struct ext2_inode { #define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt #define set_opt(o, opt) o |= EXT2_MOUNT_##opt -#define test_opt(sb, opt) ((sb)->u.ext2_sb.s_mount_opt & \ +#define test_opt(sb, opt) (EXT2_SB(sb)->s_mount_opt & \ EXT2_MOUNT_##opt) /* * Maximal mount counts between two filesystem checks @@ -444,15 +445,6 @@ struct ext2_super_block { __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 */ @@ -478,11 +470,11 @@ struct ext2_super_block { */ #define EXT2_HAS_COMPAT_FEATURE(sb,mask) \ - ( EXT2_SB(sb)->s_feature_compat & (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_feature_ro_compat & (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_feature_incompat & (mask) ) + ( EXT2_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) ) #define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001 |
