diff options
author | David Howells <dhowells@redhat.com> | 2012-10-13 10:46:48 +0100 |
---|---|---|
committer | David Howells <dhowells@redhat.com> | 2012-10-13 10:46:48 +0100 |
commit | 607ca46e97a1b6594b29647d98a32d545c24bdff (patch) | |
tree | 30f4c0784bfddb57332cdc0678bd06d1e77fa185 /include/uapi/linux/efs_fs_sb.h | |
parent | 08cce05c5a91f5017f4edc9866cf026908c73f9f (diff) |
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/efs_fs_sb.h')
-rw-r--r-- | include/uapi/linux/efs_fs_sb.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/uapi/linux/efs_fs_sb.h b/include/uapi/linux/efs_fs_sb.h new file mode 100644 index 000000000000..a01be90c58cc --- /dev/null +++ b/include/uapi/linux/efs_fs_sb.h @@ -0,0 +1,62 @@ +/* + * efs_fs_sb.h + * + * Copyright (c) 1999 Al Smith + * + * Portions derived from IRIX header files (c) 1988 Silicon Graphics + */ + +#ifndef __EFS_FS_SB_H__ +#define __EFS_FS_SB_H__ + +#include <linux/types.h> +#include <linux/magic.h> + +/* EFS superblock magic numbers */ +#define EFS_MAGIC 0x072959 +#define EFS_NEWMAGIC 0x07295a + +#define IS_EFS_MAGIC(x) ((x == EFS_MAGIC) || (x == EFS_NEWMAGIC)) + +#define EFS_SUPER 1 +#define EFS_ROOTINODE 2 + +/* efs superblock on disk */ +struct efs_super { + __be32 fs_size; /* size of filesystem, in sectors */ + __be32 fs_firstcg; /* bb offset to first cg */ + __be32 fs_cgfsize; /* size of cylinder group in bb's */ + __be16 fs_cgisize; /* bb's of inodes per cylinder group */ + __be16 fs_sectors; /* sectors per track */ + __be16 fs_heads; /* heads per cylinder */ + __be16 fs_ncg; /* # of cylinder groups in filesystem */ + __be16 fs_dirty; /* fs needs to be fsck'd */ + __be32 fs_time; /* last super-block update */ + __be32 fs_magic; /* magic number */ + char fs_fname[6]; /* file system name */ + char fs_fpack[6]; /* file system pack name */ + __be32 fs_bmsize; /* size of bitmap in bytes */ + __be32 fs_tfree; /* total free data blocks */ + __be32 fs_tinode; /* total free inodes */ + __be32 fs_bmblock; /* bitmap location. */ + __be32 fs_replsb; /* Location of replicated superblock. */ + __be32 fs_lastialloc; /* last allocated inode */ + char fs_spare[20]; /* space for expansion - MUST BE ZERO */ + __be32 fs_checksum; /* checksum of volume portion of fs */ +}; + +/* efs superblock information in memory */ +struct efs_sb_info { + __u32 fs_magic; /* superblock magic number */ + __u32 fs_start; /* first block of filesystem */ + __u32 first_block; /* first data block in filesystem */ + __u32 total_blocks; /* total number of blocks in filesystem */ + __u32 group_size; /* # of blocks a group consists of */ + __u32 data_free; /* # of free data blocks */ + __u32 inode_free; /* # of free inodes */ + __u16 inode_blocks; /* # of blocks used for inodes in every grp */ + __u16 total_groups; /* # of groups */ +}; + +#endif /* __EFS_FS_SB_H__ */ + |