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authorDavid Howells <dhowells@redhat.com>2012-10-13 10:46:48 +0100
committerDavid Howells <dhowells@redhat.com>2012-10-13 10:46:48 +0100
commit607ca46e97a1b6594b29647d98a32d545c24bdff (patch)
tree30f4c0784bfddb57332cdc0678bd06d1e77fa185 /include/uapi/linux/minix_fs.h
parent08cce05c5a91f5017f4edc9866cf026908c73f9f (diff)
downloadop-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.h106
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
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