From aa95959cb81b72d37ce1f20606f97e064bbd2bfe Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Wed, 3 Jan 2007 00:43:19 +0000 Subject: factor out minix structures/constants into minix.h fsck_minix: optimizations --- util-linux/mkfs_minix.c | 75 ++----------------------------------------------- 1 file changed, 2 insertions(+), 73 deletions(-) (limited to 'util-linux/mkfs_minix.c') diff --git a/util-linux/mkfs_minix.c b/util-linux/mkfs_minix.c index 89874b6b8..e66ef7e17 100644 --- a/util-linux/mkfs_minix.c +++ b/util-linux/mkfs_minix.c @@ -65,6 +65,8 @@ #include "busybox.h" #include +#include "minix.h" + #define DEBUG 0 /* If debugging, store the very same times/uids/gids for image consistency */ @@ -78,81 +80,8 @@ # define GETGID getgid() #endif -/* - * This is the original minix inode layout on disk. - * Note the 8-bit gid and atime and ctime. - */ -struct minix1_inode { - uint16_t i_mode; - uint16_t i_uid; - uint32_t i_size; - uint32_t i_time; - uint8_t i_gid; - uint8_t i_nlinks; - uint16_t i_zone[9]; -}; - -/* - * The new minix inode has all the time entries, as well as - * long block numbers and a third indirect block (7+1+1+1 - * instead of 7+1+1). Also, some previously 8-bit values are - * now 16-bit. The inode is now 64 bytes instead of 32. - */ -struct minix2_inode { - uint16_t i_mode; - uint16_t i_nlinks; - uint16_t i_uid; - uint16_t i_gid; - uint32_t i_size; - uint32_t i_atime; - uint32_t i_mtime; - uint32_t i_ctime; - uint32_t i_zone[10]; -}; - -/* - * minix super-block data on disk - */ -struct minix_super_block { - uint16_t s_ninodes; - uint16_t s_nzones; - uint16_t s_imap_blocks; - uint16_t s_zmap_blocks; - uint16_t s_firstdatazone; - uint16_t s_log_zone_size; - uint32_t s_max_size; - uint16_t s_magic; - uint16_t s_state; - uint32_t s_zones; -}; - -struct minix_dir_entry { - uint16_t inode; - char name[0]; -}; - -/* Believe it or not, but mount.h has this one */ -#undef BLOCK_SIZE enum { - BLOCK_SIZE = 1024, - BITS_PER_BLOCK = BLOCK_SIZE << 3, - - MINIX_ROOT_INO = 1, - MINIX_BAD_INO = 2, MAX_GOOD_BLOCKS = 512, - - MINIX1_SUPER_MAGIC = 0x137F, /* original minix fs */ - MINIX1_SUPER_MAGIC2 = 0x138F, /* minix fs, 30 char names */ - MINIX2_SUPER_MAGIC = 0x2468, /* minix V2 fs */ - MINIX2_SUPER_MAGIC2 = 0x2478, /* minix V2 fs, 30 char names */ - MINIX_VALID_FS = 0x0001, /* clean fs */ - MINIX_ERROR_FS = 0x0002, /* fs has errors */ - - INODE_SIZE1 = sizeof(struct minix1_inode), - INODE_SIZE2 = sizeof(struct minix2_inode), - MINIX1_INODES_PER_BLOCK = BLOCK_SIZE / sizeof(struct minix1_inode), - MINIX2_INODES_PER_BLOCK = BLOCK_SIZE / sizeof(struct minix2_inode), - TEST_BUFFER_BLOCKS = 16, }; -- cgit v1.2.3