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author | David Howells <dhowells@redhat.com> | 2012-10-13 10:46:48 +0100 |
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committer | David Howells <dhowells@redhat.com> | 2012-10-13 10:46:48 +0100 |
commit | 607ca46e97a1b6594b29647d98a32d545c24bdff (patch) | |
tree | 30f4c0784bfddb57332cdc0678bd06d1e77fa185 /include/uapi/linux/minix_fs.h | |
parent | 08cce05c5a91f5017f4edc9866cf026908c73f9f (diff) | |
download | op-kernel-dev-607ca46e97a1b6594b29647d98a32d545c24bdff.zip op-kernel-dev-607ca46e97a1b6594b29647d98a32d545c24bdff.tar.gz |
UAPI: (Scripted) Disintegrate include/linux
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'include/uapi/linux/minix_fs.h')
-rw-r--r-- | include/uapi/linux/minix_fs.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/include/uapi/linux/minix_fs.h b/include/uapi/linux/minix_fs.h new file mode 100644 index 0000000..13fe09e --- /dev/null +++ b/include/uapi/linux/minix_fs.h @@ -0,0 +1,106 @@ +#ifndef _LINUX_MINIX_FS_H +#define _LINUX_MINIX_FS_H + +#include <linux/types.h> +#include <linux/magic.h> + +/* + * The minix filesystem constants/structures + */ + +/* + * Thanks to Kees J Bot for sending me the definitions of the new + * minix filesystem (aka V2) with bigger inodes and 32-bit block + * pointers. + */ + +#define MINIX_ROOT_INO 1 + +/* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */ +#define MINIX_LINK_MAX 250 +#define MINIX2_LINK_MAX 65530 + +#define MINIX_I_MAP_SLOTS 8 +#define MINIX_Z_MAP_SLOTS 64 +#define MINIX_VALID_FS 0x0001 /* Clean fs. */ +#define MINIX_ERROR_FS 0x0002 /* fs has errors. */ + +#define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode))) + +/* + * This is the original minix inode layout on disk. + * Note the 8-bit gid and atime and ctime. + */ +struct minix_inode { + __u16 i_mode; + __u16 i_uid; + __u32 i_size; + __u32 i_time; + __u8 i_gid; + __u8 i_nlinks; + __u16 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 { + __u16 i_mode; + __u16 i_nlinks; + __u16 i_uid; + __u16 i_gid; + __u32 i_size; + __u32 i_atime; + __u32 i_mtime; + __u32 i_ctime; + __u32 i_zone[10]; +}; + +/* + * minix super-block data on disk + */ +struct minix_super_block { + __u16 s_ninodes; + __u16 s_nzones; + __u16 s_imap_blocks; + __u16 s_zmap_blocks; + __u16 s_firstdatazone; + __u16 s_log_zone_size; + __u32 s_max_size; + __u16 s_magic; + __u16 s_state; + __u32 s_zones; +}; + +/* + * V3 minix super-block data on disk + */ +struct minix3_super_block { + __u32 s_ninodes; + __u16 s_pad0; + __u16 s_imap_blocks; + __u16 s_zmap_blocks; + __u16 s_firstdatazone; + __u16 s_log_zone_size; + __u16 s_pad1; + __u32 s_max_size; + __u32 s_zones; + __u16 s_magic; + __u16 s_pad2; + __u16 s_blocksize; + __u8 s_disk_version; +}; + +struct minix_dir_entry { + __u16 inode; + char name[0]; +}; + +struct minix3_dir_entry { + __u32 inode; + char name[0]; +}; +#endif |