FM / linux

/usr/include/linux

Name	Size	Mode	Actions
byteorder/	-	0755	rm
can/	-	0755	rm
dvb/	-	0755	rm
hdlc/	-	0755	rm
isdn/	-	0755	rm
netfilter/	-	0755	rm
netfilter_arp/	-	0755	rm
netfilter_bridge/	-	0755	rm
netfilter_ipv4/	-	0755	rm
netfilter_ipv6/	-	0755	rm
nfsd/	-	0755	rm
raid/	-	0755	rm
spi/	-	0755	rm
sunrpc/	-	0755	rm
tc_act/	-	0755	rm
tc_ematch/	-	0755	rm
usb/	-	0755	rm
wimax/	-	0755	rm
a.out.h	7319	0644	edit dl rm
acct.h	3490	0644	edit dl rm
adb.h	1077	0644	edit dl rm
adfs_fs.h	856	0644	edit dl rm
affs_hardblocks.h	1481	0644	edit dl rm
agpgart.h	3925	0644	edit dl rm
aio_abi.h	3112	0644	edit dl rm
apm_bios.h	3544	0644	edit dl rm
arcfb.h	150	0644	edit dl rm
atalk.h	927	0644	edit dl rm
atm.h	7806	0644	edit dl rm
atmapi.h	889	0644	edit dl rm
atmarp.h	1233	0644	edit dl rm
atmbr2684.h	3208	0644	edit dl rm
atmclip.h	513	0644	edit dl rm
atmdev.h	7593	0644	edit dl rm
atmioc.h	1583	0644	edit dl rm
atmlec.h	2561	0644	edit dl rm
atmmpc.h	4163	0644	edit dl rm
atmppp.h	576	0644	edit dl rm
atmsap.h	4907	0644	edit dl rm
atmsvc.h	1790	0644	edit dl rm
atm_eni.h	585	0644	edit dl rm
atm_he.h	343	0644	edit dl rm
atm_idt77105.h	892	0644	edit dl rm
atm_nicstar.h	1215	0644	edit dl rm
atm_tcp.h	1537	0644	edit dl rm
atm_zatm.h	1606	0644	edit dl rm
audit.h	15880	0644	edit dl rm
auto_fs.h	2346	0644	edit dl rm
auto_fs4.h	4131	0644	edit dl rm
auxvec.h	1384	0644	edit dl rm
ax25.h	2752	0644	edit dl rm
b1lli.h	1654	0644	edit dl rm
baycom.h	820	0644	edit dl rm
bfs_fs.h	1830	0644	edit dl rm
binfmts.h	565	0644	edit dl rm
blkpg.h	1598	0644	edit dl rm
blktrace_api.h	4473	0644	edit dl rm
blk_types.h	7106	0644	edit dl rm
bpqether.h	952	0644	edit dl rm
bsg.h	2385	0644	edit dl rm
can.h	3326	0644	edit dl rm
capability.h	10589	0644	edit dl rm
capi.h	3057	0644	edit dl rm
cciss_ioctl.h	5824	0644	edit dl rm
cdk.h	12770	0644	edit dl rm
cdrom.h	28129	0644	edit dl rm
cgroupstats.h	2155	0644	edit dl rm
chio.h	5280	0644	edit dl rm
cm4000_cs.h	1718	0644	edit dl rm
cn_proc.h	2715	0644	edit dl rm
coda.h	17487	0644	edit dl rm
coda_psdev.h	679	0644	edit dl rm
coff.h	12413	0644	edit dl rm
comstats.h	3120	0644	edit dl rm
connector.h	2129	0644	edit dl rm
const.h	682	0644	edit dl rm
cramfs_fs.h	2930	0644	edit dl rm
cuda.h	769	0644	edit dl rm
cyclades.h	17045	0644	edit dl rm
cycx_cfm.h	2926	0644	edit dl rm
dcbnl.h	22120	0644	edit dl rm
dccp.h	5800	0644	edit dl rm
dlm.h	2529	0644	edit dl rm
dlmconstants.h	5013	0644	edit dl rm
dlm_device.h	2480	0644	edit dl rm
dlm_netlink.h	1064	0644	edit dl rm
dlm_plock.h	806	0644	edit dl rm
dm-ioctl.h	10668	0644	edit dl rm
dm-log-userspace.h	15173	0644	edit dl rm
dn.h	4527	0644	edit dl rm
dqblk_xfs.h	6952	0644	edit dl rm
edd.h	5544	0644	edit dl rm
efs_fs_sb.h	2164	0644	edit dl rm
elf-em.h	1834	0644	edit dl rm
elf-fdpic.h	2557	0644	edit dl rm
elf.h	11236	0644	edit dl rm
elfcore.h	2932	0644	edit dl rm
errno.h	79	0644	edit dl rm
errqueue.h	443	0644	edit dl rm
ethtool.h	34166	0644	edit dl rm
eventpoll.h	1353	0644	edit dl rm
ext2_fs.h	18802	0644	edit dl rm
fadvise.h	855	0644	edit dl rm
falloc.h	293	0644	edit dl rm
fb.h	16016	0644	edit dl rm
fcntl.h	1607	0644	edit dl rm
fd.h	11563	0644	edit dl rm
fdreg.h	5355	0644	edit dl rm
fib_rules.h	1459	0644	edit dl rm
fiemap.h	2548	0644	edit dl rm
filter.h	3534	0644	edit dl rm
firewire-cdev.h	25053	0644	edit dl rm
firewire-constants.h	1975	0644	edit dl rm
flat.h	2085	0644	edit dl rm
fs.h	18910	0644	edit dl rm
fuse.h	11441	0644	edit dl rm
futex.h	4909	0644	edit dl rm
gameport.h	816	0644	edit dl rm
generic_serial.h	895	0644	edit dl rm
genetlink.h	1683	0644	edit dl rm
gen_stats.h	1304	0644	edit dl rm
gfs2_ondisk.h	11814	0644	edit dl rm
gigaset_dev.h	981	0644	edit dl rm
hayesesp.h	230	0644	edit dl rm
hdlc.h	574	0644	edit dl rm
hdlcdrv.h	2845	0644	edit dl rm
hdreg.h	22640	0644	edit dl rm
hid.h	1824	0644	edit dl rm
hiddev.h	6265	0644	edit dl rm
hidraw.h	1217	0644	edit dl rm
hpet.h	686	0644	edit dl rm
hysdn_if.h	1319	0644	edit dl rm
i2c-dev.h	2403	0644	edit dl rm
i2c.h	6631	0644	edit dl rm
i2o-dev.h	11488	0644	edit dl rm
i8k.h	1438	0644	edit dl rm
icmp.h	2892	0644	edit dl rm
icmpv6.h	3831	0644	edit dl rm
if.h	8673	0644	edit dl rm
if_addr.h	1456	0644	edit dl rm
if_addrlabel.h	658	0644	edit dl rm
if_arcnet.h	3718	0644	edit dl rm
if_arp.h	6109	0644	edit dl rm
if_bonding.h	4076	0644	edit dl rm
if_bridge.h	3810	0644	edit dl rm
if_cablemodem.h	910	0644	edit dl rm
if_ec.h	901	0644	edit dl rm
if_eql.h	1284	0644	edit dl rm
if_ether.h	6539	0644	edit dl rm
if_fc.h	1674	0644	edit dl rm
if_fddi.h	3700	0644	edit dl rm
if_frad.h	2940	0644	edit dl rm
if_hippi.h	4175	0644	edit dl rm
if_infiniband.h	1145	0644	edit dl rm
if_link.h	12078	0644	edit dl rm
if_ltalk.h	125	0644	edit dl rm
if_packet.h	3530	0644	edit dl rm
if_phonet.h	337	0644	edit dl rm
if_plip.h	596	0644	edit dl rm
if_ppp.h	6938	0644	edit dl rm
if_pppol2tp.h	1983	0644	edit dl rm
if_pppox.h	3772	0644	edit dl rm
if_slip.h	809	0644	edit dl rm
if_strip.h	700	0644	edit dl rm
if_tr.h	3199	0644	edit dl rm
if_tun.h	3014	0644	edit dl rm
if_tunnel.h	1459	0644	edit dl rm
if_vlan.h	1708	0644	edit dl rm
igmp.h	2928	0644	edit dl rm
in.h	9203	0644	edit dl rm
in6.h	7495	0644	edit dl rm
inet_diag.h	2453	0644	edit dl rm
inotify.h	2838	0644	edit dl rm
input.h	27594	0644	edit dl rm
in_route.h	873	0644	edit dl rm
ioctl.h	100	0644	edit dl rm
ip.h	3555	0644	edit dl rm
ip6_tunnel.h	1073	0644	edit dl rm
ipc.h	2038	0644	edit dl rm
ipmi.h	16543	0644	edit dl rm
ipmi_msgdefs.h	4477	0644	edit dl rm
ipsec.h	884	0644	edit dl rm
ipv6.h	2892	0644	edit dl rm
ipv6_route.h	1614	0644	edit dl rm
ipx.h	1824	0644	edit dl rm
ip_vs.h	12583	0644	edit dl rm
irda.h	7651	0644	edit dl rm
irqnr.h	93	0644	edit dl rm
isdn.h	5687	0644	edit dl rm
isdnif.h	2306	0644	edit dl rm
isdn_divertif.h	1038	0644	edit dl rm
isdn_ppp.h	1859	0644	edit dl rm
iso_fs.h	6439	0644	edit dl rm
ivtv.h	2726	0644	edit dl rm
ivtvfb.h	1143	0644	edit dl rm
ixjuser.h	25116	0644	edit dl rm
jffs2.h	6949	0644	edit dl rm
joystick.h	3587	0644	edit dl rm
kd.h	6169	0644	edit dl rm
kdev_t.h	298	0644	edit dl rm
kernel.h	2457	0644	edit dl rm
kernelcapi.h	959	0644	edit dl rm
keyboard.h	12695	0644	edit dl rm
keyctl.h	2984	0644	edit dl rm
kvm.h	20681	0644	edit dl rm
kvm_para.h	564	0644	edit dl rm
libc-compat.h	3540	0644	edit dl rm
limits.h	874	0644	edit dl rm
llc.h	2835	0644	edit dl rm
loop.h	2189	0644	edit dl rm
lp.h	3794	0644	edit dl rm
magic.h	2292	0644	edit dl rm
major.h	4655	0644	edit dl rm
map_to_7segment.h	7187	0644	edit dl rm
matroxfb.h	1429	0644	edit dl rm
mempolicy.h	2052	0644	edit dl rm
meye.h	2544	0644	edit dl rm
mii.h	7950	0644	edit dl rm
minix_fs.h	2059	0644	edit dl rm
mman.h	230	0644	edit dl rm
mmtimer.h	2054	0644	edit dl rm
mqueue.h	2055	0644	edit dl rm
mroute.h	3813	0644	edit dl rm
mroute6.h	3991	0644	edit dl rm
msdos_fs.h	5839	0644	edit dl rm
msg.h	2539	0644	edit dl rm
mtio.h	8080	0644	edit dl rm
nbd.h	1958	0644	edit dl rm
ncp.h	5055	0644	edit dl rm
ncp_fs.h	3354	0644	edit dl rm
ncp_mount.h	2112	0644	edit dl rm
ncp_no.h	651	0644	edit dl rm
neighbour.h	4060	0644	edit dl rm
net.h	2021	0644	edit dl rm
netdevice.h	1771	0644	edit dl rm
netfilter.h	1546	0644	edit dl rm
netfilter_arp.h	380	0644	edit dl rm
netfilter_bridge.h	735	0644	edit dl rm
netfilter_decnet.h	1872	0644	edit dl rm
netfilter_ipv4.h	2032	0644	edit dl rm
netfilter_ipv6.h	2050	0644	edit dl rm
netlink.h	4969	0644	edit dl rm
netrom.h	719	0644	edit dl rm
net_dropmon.h	1091	0644	edit dl rm
net_tstamp.h	3468	0644	edit dl rm
nfs.h	4351	0644	edit dl rm
nfs2.h	1405	0644	edit dl rm
nfs3.h	2207	0644	edit dl rm
nfs4.h	5763	0644	edit dl rm
nfs4_mount.h	1869	0644	edit dl rm
nfsacl.h	577	0644	edit dl rm
nfs_fs.h	1552	0644	edit dl rm
nfs_idmap.h	2238	0644	edit dl rm
nfs_mount.h	3200	0644	edit dl rm
nl80211.h	192354	0644	edit dl rm
nubus.h	8366	0644	edit dl rm
nvram.h	470	0644	edit dl rm
n_r3964.h	2349	0644	edit dl rm
oom.h	456	0644	edit dl rm
param.h	78	0644	edit dl rm
parport.h	3644	0644	edit dl rm
patchkey.h	831	0644	edit dl rm
pci.h	1485	0644	edit dl rm
pci_regs.h	37975	0644	edit dl rm
perf_event.h	21849	0644	edit dl rm
personality.h	1998	0644	edit dl rm
pfkeyv2.h	10147	0644	edit dl rm
pg.h	2282	0644	edit dl rm
phantom.h	1590	0644	edit dl rm
phonet.h	4349	0644	edit dl rm
pktcdvd.h	2623	0644	edit dl rm
pkt_cls.h	9293	0644	edit dl rm
pkt_sched.h	10887	0644	edit dl rm
pmu.h	5187	0644	edit dl rm
poll.h	96	0644	edit dl rm
posix_types.h	1270	0644	edit dl rm
ppdev.h	3147	0644	edit dl rm
ppp-comp.h	6516	0644	edit dl rm
ppp_defs.h	6461	0644	edit dl rm
pps.h	3939	0644	edit dl rm
prctl.h	4972	0644	edit dl rm
ptp_clock.h	3496	0644	edit dl rm
ptrace.h	2290	0644	edit dl rm
qnx4_fs.h	2265	0644	edit dl rm
qnxtypes.h	561	0644	edit dl rm
quota.h	5723	0644	edit dl rm
radeonfb.h	297	0644	edit dl rm
random.h	1085	0644	edit dl rm
raw.h	302	0644	edit dl rm
reboot.h	1280	0644	edit dl rm
reiserfs_fs.h	907	0644	edit dl rm
reiserfs_xattr.h	465	0644	edit dl rm
resource.h	2087	0644	edit dl rm
rfkill.h	3384	0644	edit dl rm
romfs_fs.h	1127	0644	edit dl rm
rose.h	2100	0644	edit dl rm
route.h	2269	0644	edit dl rm
rtc.h	3696	0644	edit dl rm
rtnetlink.h	15335	0644	edit dl rm
scc.h	4543	0644	edit dl rm
sched.h	2096	0644	edit dl rm
screen_info.h	2202	0644	edit dl rm
sdla.h	2837	0644	edit dl rm
selinux_netlink.h	1132	0644	edit dl rm
sem.h	3666	0644	edit dl rm
serial.h	6780	0644	edit dl rm
serial_core.h	4024	0644	edit dl rm
serial_reg.h	13245	0644	edit dl rm
serio.h	1688	0644	edit dl rm
shm.h	2187	0644	edit dl rm
signal.h	129	0644	edit dl rm
signalfd.h	1096	0644	edit dl rm
smb.h	1209	0644	edit dl rm
smbno.h	14520	0644	edit dl rm
smb_fs.h	535	0644	edit dl rm
smb_mount.h	468	0644	edit dl rm
snmp.h	11157	0644	edit dl rm
socket.h	738	0644	edit dl rm
sockios.h	5967	0644	edit dl rm
som.h	5480	0644	edit dl rm
sonet.h	2207	0644	edit dl rm
sonypi.h	5136	0644	edit dl rm
sound.h	1099	0644	edit dl rm
soundcard.h	46019	0644	edit dl rm
stat.h	1005	0644	edit dl rm
stddef.h	633	0644	edit dl rm
string.h	175	0644	edit dl rm
suspend_ioctls.h	1368	0644	edit dl rm
swab.h	6292	0644	edit dl rm
synclink.h	8695	0644	edit dl rm
sysctl.h	26495	0644	edit dl rm
taskstats.h	6947	0644	edit dl rm
tcp.h	5205	0644	edit dl rm
telephony.h	9051	0644	edit dl rm
termios.h	544	0644	edit dl rm
time.h	1736	0644	edit dl rm
times.h	215	0644	edit dl rm
timex.h	6221	0644	edit dl rm
tiocl.h	1666	0644	edit dl rm
tipc.h	5910	0644	edit dl rm
tipc_config.h	15370	0644	edit dl rm
toshiba.h	1284	0644	edit dl rm
tty.h	128	0644	edit dl rm
types.h	991	0644	edit dl rm
udf_fs_i.h	634	0644	edit dl rm
udp.h	1166	0644	edit dl rm
uinput.h	5125	0644	edit dl rm
uio.h	648	0644	edit dl rm
ultrasound.h	4499	0644	edit dl rm
un.h	203	0644	edit dl rm
unistd.h	157	0644	edit dl rm
usbdevice_fs.h	5340	0644	edit dl rm
utime.h	152	0644	edit dl rm
utsname.h	606	0644	edit dl rm
uuid.h	1769	0644	edit dl rm
version.h	281	0644	edit dl rm
veth.h	474	0644	edit dl rm
vhost.h	4566	0644	edit dl rm
videodev.h	10513	0644	edit dl rm
videodev2.h	66071	0644	edit dl rm
videotext.h	4242	0644	edit dl rm
virtio_9p.h	351	0644	edit dl rm
virtio_balloon.h	1255	0644	edit dl rm
virtio_blk.h	2981	0644	edit dl rm
virtio_config.h	1284	0644	edit dl rm
virtio_console.h	1406	0644	edit dl rm
virtio_ids.h	545	0644	edit dl rm
virtio_net.h	7026	0644	edit dl rm
virtio_pci.h	2263	0644	edit dl rm
virtio_ring.h	4489	0644	edit dl rm
virtio_rng.h	265	0644	edit dl rm
vt.h	3070	0644	edit dl rm
wait.h	580	0644	edit dl rm
wanrouter.h	17836	0644	edit dl rm
watchdog.h	2400	0644	edit dl rm
wimax.h	8370	0644	edit dl rm
wireless.h	42653	0644	edit dl rm
x25.h	3418	0644	edit dl rm
xattr.h	646	0644	edit dl rm
xfrm.h	10558	0644	edit dl rm

Edit: /usr/include/linux/ext2_fs.h (18802B)

/*
 *  linux/include/linux/ext2_fs.h
 *
 * Copyright (C) 1992, 1993, 1994, 1995
 * Remy Card (card@masi.ibp.fr)
 * Laboratoire MASI - Institut Blaise Pascal
 * Universite Pierre et Marie Curie (Paris VI)
 *
 *  from
 *
 *  linux/include/linux/minix_fs.h
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 */

#ifndef _LINUX_EXT2_FS_H
#define _LINUX_EXT2_FS_H

#include <linux/types.h>
#include <linux/magic.h>

/*
 * The second extended filesystem constants/structures
 */

/*
 * Define EXT2FS_DEBUG to produce debug messages
 */
#undef EXT2FS_DEBUG

/*
 * Define EXT2_RESERVATION to reserve data blocks for expanding files
 */
#define EXT2_DEFAULT_RESERVE_BLOCKS     8
/*max window size: 1024(direct blocks) + 3([t,d]indirect blocks) */
#define EXT2_MAX_RESERVE_BLOCKS         1027
#define EXT2_RESERVE_WINDOW_NOT_ALLOCATED 0
/*
 * The second extended file system version
 */
#define EXT2FS_DATE		"95/08/09"
#define EXT2FS_VERSION		"0.5b"

/*
 * Debug code
 */
#ifdef EXT2FS_DEBUG
#	define ext2_debug(f, a...)	{ \
					printk ("EXT2-fs DEBUG (%s, %d): %s:", \
						__FILE__, __LINE__, __func__); \
				  	printk (f, ## a); \
					}
#else
#	define ext2_debug(f, a...)	/**/
#endif

/*
 * Special inode numbers
 */
#define	EXT2_BAD_INO		 1	/* Bad blocks inode */
#define EXT2_ROOT_INO		 2	/* Root inode */
#define EXT2_BOOT_LOADER_INO	 5	/* Boot loader inode */
#define EXT2_UNDEL_DIR_INO	 6	/* Undelete directory inode */

/* First non-reserved inode for old ext2 filesystems */
#define EXT2_GOOD_OLD_FIRST_INO	11

/* 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)

/*
 * Maximal count of links to a file
 */
#define EXT2_LINK_MAX		32000

/*
 * Macro-instructions used to manage several block sizes
 */
#define EXT2_MIN_BLOCK_SIZE		1024
#define	EXT2_MAX_BLOCK_SIZE		4096
#define EXT2_MIN_BLOCK_LOG_SIZE		  10
# define EXT2_BLOCK_SIZE(s)		(EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size)
#define	EXT2_ADDR_PER_BLOCK(s)		(EXT2_BLOCK_SIZE(s) / sizeof (__u32))
# define EXT2_BLOCK_SIZE_BITS(s)	((s)->s_log_block_size + 10)
#define EXT2_INODE_SIZE(s)	(((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \
				 EXT2_GOOD_OLD_INODE_SIZE : \
				 (s)->s_inode_size)
#define EXT2_FIRST_INO(s)	(((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \
				 EXT2_GOOD_OLD_FIRST_INO : \
				 (s)->s_first_ino)

/*
 * Macro-instructions used to manage fragments
 */
#define EXT2_MIN_FRAG_SIZE		1024
#define	EXT2_MAX_FRAG_SIZE		4096
#define EXT2_MIN_FRAG_LOG_SIZE		  10
# define EXT2_FRAG_SIZE(s)		(EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size)
# define EXT2_FRAGS_PER_BLOCK(s)	(EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s))

/*
 * Structure of a blocks group descriptor
 */
struct ext2_group_desc
{
	__le32	bg_block_bitmap;		/* Blocks bitmap block */
	__le32	bg_inode_bitmap;		/* Inodes bitmap block */
	__le32	bg_inode_table;		/* Inodes table block */
	__le16	bg_free_blocks_count;	/* Free blocks count */
	__le16	bg_free_inodes_count;	/* Free inodes count */
	__le16	bg_used_dirs_count;	/* Directories count */
	__le16	bg_pad;
	__le32	bg_reserved[3];
};

/*
 * Macro-instructions used to manage group descriptors
 */
# 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))
# define EXT2_INODES_PER_GROUP(s)	((s)->s_inodes_per_group)

/*
 * Constants relative to the data blocks
 */
#define	EXT2_NDIR_BLOCKS		12
#define	EXT2_IND_BLOCK			EXT2_NDIR_BLOCKS
#define	EXT2_DIND_BLOCK			(EXT2_IND_BLOCK + 1)
#define	EXT2_TIND_BLOCK			(EXT2_DIND_BLOCK + 1)
#define	EXT2_N_BLOCKS			(EXT2_TIND_BLOCK + 1)

/*
 * Inode flags (GETFLAGS/SETFLAGS)
 */
#define	EXT2_SECRM_FL			FS_SECRM_FL	/* Secure deletion */
#define	EXT2_UNRM_FL			FS_UNRM_FL	/* Undelete */
#define	EXT2_COMPR_FL			FS_COMPR_FL	/* Compress file */
#define EXT2_SYNC_FL			FS_SYNC_FL	/* Synchronous updates */
#define EXT2_IMMUTABLE_FL		FS_IMMUTABLE_FL	/* Immutable file */
#define EXT2_APPEND_FL			FS_APPEND_FL	/* writes to file may only append */
#define EXT2_NODUMP_FL			FS_NODUMP_FL	/* do not dump file */
#define EXT2_NOATIME_FL			FS_NOATIME_FL	/* do not update atime */
/* Reserved for compression usage... */
#define EXT2_DIRTY_FL			FS_DIRTY_FL
#define EXT2_COMPRBLK_FL		FS_COMPRBLK_FL	/* One or more compressed clusters */
#define EXT2_NOCOMP_FL			FS_NOCOMP_FL	/* Don't compress */
#define EXT2_ECOMPR_FL			FS_ECOMPR_FL	/* Compression error */
/* End compression flags --- maybe not all used */	
#define EXT2_BTREE_FL			FS_BTREE_FL	/* btree format dir */
#define EXT2_INDEX_FL			FS_INDEX_FL	/* hash-indexed directory */
#define EXT2_IMAGIC_FL			FS_IMAGIC_FL	/* AFS directory */
#define EXT2_JOURNAL_DATA_FL		FS_JOURNAL_DATA_FL /* Reserved for ext3 */
#define EXT2_NOTAIL_FL			FS_NOTAIL_FL	/* file tail should not be merged */
#define EXT2_DIRSYNC_FL			FS_DIRSYNC_FL	/* dirsync behaviour (directories only) */
#define EXT2_TOPDIR_FL			FS_TOPDIR_FL	/* Top of directory hierarchies*/
#define EXT2_RESERVED_FL		FS_RESERVED_FL	/* reserved for ext2 lib */

#define EXT2_FL_USER_VISIBLE		FS_FL_USER_VISIBLE	/* User visible flags */
#define EXT2_FL_USER_MODIFIABLE		FS_FL_USER_MODIFIABLE	/* User modifiable flags */

/* Flags that should be inherited by new inodes from their parent. */
#define EXT2_FL_INHERITED (EXT2_SECRM_FL | EXT2_UNRM_FL | EXT2_COMPR_FL |\
			   EXT2_SYNC_FL | EXT2_NODUMP_FL |\
			   EXT2_NOATIME_FL | EXT2_COMPRBLK_FL |\
			   EXT2_NOCOMP_FL | EXT2_JOURNAL_DATA_FL |\
			   EXT2_NOTAIL_FL | EXT2_DIRSYNC_FL)

/* Flags that are appropriate for regular files (all but dir-specific ones). */
#define EXT2_REG_FLMASK (~(EXT2_DIRSYNC_FL | EXT2_TOPDIR_FL))

/* Flags that are appropriate for non-directories/regular files. */
#define EXT2_OTHER_FLMASK (EXT2_NODUMP_FL | EXT2_NOATIME_FL)

/* Mask out flags that are inappropriate for the given type of inode. */
static __inline__ __u32 ext2_mask_flags(umode_t mode, __u32 flags)
{
	if (S_ISDIR(mode))
		return flags;
	else if (S_ISREG(mode))
		return flags & EXT2_REG_FLMASK;
	else
		return flags & EXT2_OTHER_FLMASK;
}

/*
 * ioctl commands
 */
#define	EXT2_IOC_GETFLAGS		FS_IOC_GETFLAGS
#define	EXT2_IOC_SETFLAGS		FS_IOC_SETFLAGS
#define	EXT2_IOC_GETVERSION		FS_IOC_GETVERSION
#define	EXT2_IOC_SETVERSION		FS_IOC_SETVERSION
#define	EXT2_IOC_GETRSVSZ		_IOR('f', 5, long)
#define	EXT2_IOC_SETRSVSZ		_IOW('f', 6, long)

/*
 * ioctl commands in 32 bit emulation
 */
#define EXT2_IOC32_GETFLAGS		FS_IOC32_GETFLAGS
#define EXT2_IOC32_SETFLAGS		FS_IOC32_SETFLAGS
#define EXT2_IOC32_GETVERSION		FS_IOC32_GETVERSION
#define EXT2_IOC32_SETVERSION		FS_IOC32_SETVERSION

/*
 * Structure of an inode on the disk
 */
struct ext2_inode {
	__le16	i_mode;		/* File mode */
	__le16	i_uid;		/* Low 16 bits of Owner Uid */
	__le32	i_size;		/* Size in bytes */
	__le32	i_atime;	/* Access time */
	__le32	i_ctime;	/* Creation time */
	__le32	i_mtime;	/* Modification time */
	__le32	i_dtime;	/* Deletion Time */
	__le16	i_gid;		/* Low 16 bits of Group Id */
	__le16	i_links_count;	/* Links count */
	__le32	i_blocks;	/* Blocks count */
	__le32	i_flags;	/* File flags */
	union {
		struct {
			__le32  l_i_reserved1;
		} linux1;
		struct {
			__le32  h_i_translator;
		} hurd1;
		struct {
			__le32  m_i_reserved1;
		} masix1;
	} osd1;				/* OS dependent 1 */
	__le32	i_block[EXT2_N_BLOCKS];/* Pointers to blocks */
	__le32	i_generation;	/* File version (for NFS) */
	__le32	i_file_acl;	/* File ACL */
	__le32	i_dir_acl;	/* Directory ACL */
	__le32	i_faddr;	/* Fragment address */
	union {
		struct {
			__u8	l_i_frag;	/* Fragment number */
			__u8	l_i_fsize;	/* Fragment size */
			__u16	i_pad1;
			__le16	l_i_uid_high;	/* these 2 fields    */
			__le16	l_i_gid_high;	/* were reserved2[0] */
			__u32	l_i_reserved2;
		} linux2;
		struct {
			__u8	h_i_frag;	/* Fragment number */
			__u8	h_i_fsize;	/* Fragment size */
			__le16	h_i_mode_high;
			__le16	h_i_uid_high;
			__le16	h_i_gid_high;
			__le32	h_i_author;
		} hurd2;
		struct {
			__u8	m_i_frag;	/* Fragment number */
			__u8	m_i_fsize;	/* Fragment size */
			__u16	m_pad1;
			__u32	m_i_reserved2[2];
		} masix2;
	} osd2;				/* OS dependent 2 */
};

#define i_size_high	i_dir_acl

#if defined(__KERNEL__) || defined(__linux__)
#define i_reserved1	osd1.linux1.l_i_reserved1
#define i_frag		osd2.linux2.l_i_frag
#define i_fsize		osd2.linux2.l_i_fsize
#define i_uid_low	i_uid
#define i_gid_low	i_gid
#define i_uid_high	osd2.linux2.l_i_uid_high
#define i_gid_high	osd2.linux2.l_i_gid_high
#define i_reserved2	osd2.linux2.l_i_reserved2
#endif

#ifdef	__hurd__
#define i_translator	osd1.hurd1.h_i_translator
#define i_frag		osd2.hurd2.h_i_frag
#define i_fsize		osd2.hurd2.h_i_fsize
#define i_uid_high	osd2.hurd2.h_i_uid_high
#define i_gid_high	osd2.hurd2.h_i_gid_high
#define i_author	osd2.hurd2.h_i_author
#endif

#ifdef	__masix__
#define i_reserved1	osd1.masix1.m_i_reserved1
#define i_frag		osd2.masix2.m_i_frag
#define i_fsize		osd2.masix2.m_i_fsize
#define i_reserved2	osd2.masix2.m_i_reserved2
#endif

/*
 * File system states
 */
#define	EXT2_VALID_FS			0x0001	/* Unmounted cleanly */
#define	EXT2_ERROR_FS			0x0002	/* Errors detected */
#define	EFSCORRUPTED			EUCLEAN /* Filesystem is corrupted */

/*
 * Mount flags
 */
#define EXT2_MOUNT_CHECK		0x000001  /* Do mount-time checks */
#define EXT2_MOUNT_OLDALLOC		0x000002  /* Don't use the new Orlov allocator */
#define EXT2_MOUNT_GRPID		0x000004  /* Create files with directory's group */
#define EXT2_MOUNT_DEBUG		0x000008  /* Some debugging messages */
#define EXT2_MOUNT_ERRORS_CONT		0x000010  /* Continue on errors */
#define EXT2_MOUNT_ERRORS_RO		0x000020  /* Remount fs ro on errors */
#define EXT2_MOUNT_ERRORS_PANIC		0x000040  /* Panic on errors */
#define EXT2_MOUNT_MINIX_DF		0x000080  /* Mimics the Minix statfs */
#define EXT2_MOUNT_NOBH			0x000100  /* No buffer_heads */
#define EXT2_MOUNT_NO_UID32		0x000200  /* Disable 32-bit UIDs */
#define EXT2_MOUNT_XATTR_USER		0x004000  /* Extended user attributes */
#define EXT2_MOUNT_POSIX_ACL		0x008000  /* POSIX Access Control Lists */
#define EXT2_MOUNT_XIP			0x010000  /* Execute in place */
#define EXT2_MOUNT_USRQUOTA		0x020000  /* user quota */
#define EXT2_MOUNT_GRPQUOTA		0x040000  /* group quota */
#define EXT2_MOUNT_RESERVATION		0x080000  /* Preallocation */

#define clear_opt(o, opt)		o &= ~EXT2_MOUNT_##opt
#define set_opt(o, opt)			o |= EXT2_MOUNT_##opt
#define test_opt(sb, opt)		(EXT2_SB(sb)->s_mount_opt & \
					 EXT2_MOUNT_##opt)
/*
 * Maximal mount counts between two filesystem checks
 */
#define EXT2_DFL_MAX_MNT_COUNT		20	/* Allow 20 mounts */
#define EXT2_DFL_CHECKINTERVAL		0	/* Don't use interval check */

/*
 * Behaviour when detecting errors
 */
#define EXT2_ERRORS_CONTINUE		1	/* Continue execution */
#define EXT2_ERRORS_RO			2	/* Remount fs read-only */
#define EXT2_ERRORS_PANIC		3	/* Panic */
#define EXT2_ERRORS_DEFAULT		EXT2_ERRORS_CONTINUE

/*
 * Structure of the super block
 */
struct ext2_super_block {
	__le32	s_inodes_count;		/* Inodes count */
	__le32	s_blocks_count;		/* Blocks count */
	__le32	s_r_blocks_count;	/* Reserved blocks count */
	__le32	s_free_blocks_count;	/* Free blocks count */
	__le32	s_free_inodes_count;	/* Free inodes count */
	__le32	s_first_data_block;	/* First Data Block */
	__le32	s_log_block_size;	/* Block size */
	__le32	s_log_frag_size;	/* Fragment size */
	__le32	s_blocks_per_group;	/* # Blocks per group */
	__le32	s_frags_per_group;	/* # Fragments per group */
	__le32	s_inodes_per_group;	/* # Inodes per group */
	__le32	s_mtime;		/* Mount time */
	__le32	s_wtime;		/* Write time */
	__le16	s_mnt_count;		/* Mount count */
	__le16	s_max_mnt_count;	/* Maximal mount count */
	__le16	s_magic;		/* Magic signature */
	__le16	s_state;		/* File system state */
	__le16	s_errors;		/* Behaviour when detecting errors */
	__le16	s_minor_rev_level; 	/* minor revision level */
	__le32	s_lastcheck;		/* time of last check */
	__le32	s_checkinterval;	/* max. time between checks */
	__le32	s_creator_os;		/* OS */
	__le32	s_rev_level;		/* Revision level */
	__le16	s_def_resuid;		/* Default uid for reserved blocks */
	__le16	s_def_resgid;		/* Default gid for reserved blocks */
	/*
	 * These fields are for EXT2_DYNAMIC_REV superblocks only.
	 *
	 * Note: the difference between the compatible feature set and
	 * the incompatible feature set is that if there is a bit set
	 * in the incompatible feature set that the kernel doesn't
	 * know about, it should refuse to mount the filesystem.
	 * 
	 * e2fsck's requirements are more strict; if it doesn't know
	 * about a feature in either the compatible or incompatible
	 * feature set, it must abort and not try to meddle with
	 * things it doesn't understand...
	 */
	__le32	s_first_ino; 		/* First non-reserved inode */
	__le16   s_inode_size; 		/* size of inode structure */
	__le16	s_block_group_nr; 	/* block group # of this superblock */
	__le32	s_feature_compat; 	/* compatible feature set */
	__le32	s_feature_incompat; 	/* incompatible feature set */
	__le32	s_feature_ro_compat; 	/* readonly-compatible feature set */
	__u8	s_uuid[16];		/* 128-bit uuid for volume */
	char	s_volume_name[16]; 	/* volume name */
	char	s_last_mounted[64]; 	/* directory where last mounted */
	__le32	s_algorithm_usage_bitmap; /* For compression */
	/*
	 * Performance hints.  Directory preallocation should only
	 * happen if the EXT2_COMPAT_PREALLOC flag is on.
	 */
	__u8	s_prealloc_blocks;	/* Nr of blocks to try to preallocate*/
	__u8	s_prealloc_dir_blocks;	/* Nr to preallocate for dirs */
	__u16	s_padding1;
	/*
	 * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set.
	 */
	__u8	s_journal_uuid[16];	/* uuid of journal superblock */
	__u32	s_journal_inum;		/* inode number of journal file */
	__u32	s_journal_dev;		/* device number of journal file */
	__u32	s_last_orphan;		/* start of list of inodes to delete */
	__u32	s_hash_seed[4];		/* HTREE hash seed */
	__u8	s_def_hash_version;	/* Default hash version to use */
	__u8	s_reserved_char_pad;
	__u16	s_reserved_word_pad;
	__le32	s_default_mount_opts;
 	__le32	s_first_meta_bg; 	/* First metablock block group */
	__u32	s_reserved[190];	/* Padding to the end of the block */
};

/*
 * Codes for operating systems
 */
#define EXT2_OS_LINUX		0
#define EXT2_OS_HURD		1
#define EXT2_OS_MASIX		2
#define EXT2_OS_FREEBSD		3
#define EXT2_OS_LITES		4

/*
 * Revision levels
 */
#define EXT2_GOOD_OLD_REV	0	/* The good old (original) format */
#define EXT2_DYNAMIC_REV	1 	/* V2 format w/ dynamic inode sizes */

#define EXT2_CURRENT_REV	EXT2_GOOD_OLD_REV
#define EXT2_MAX_SUPP_REV	EXT2_DYNAMIC_REV

#define EXT2_GOOD_OLD_INODE_SIZE 128

/*
 * Feature set definitions
 */

#define EXT2_HAS_COMPAT_FEATURE(sb,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_es->s_feature_ro_compat & cpu_to_le32(mask) )
#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask)			\
	( EXT2_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
#define EXT2_SET_COMPAT_FEATURE(sb,mask)			\
	EXT2_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
#define EXT2_SET_RO_COMPAT_FEATURE(sb,mask)			\
	EXT2_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
#define EXT2_SET_INCOMPAT_FEATURE(sb,mask)			\
	EXT2_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
#define EXT2_CLEAR_COMPAT_FEATURE(sb,mask)			\
	EXT2_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
#define EXT2_CLEAR_RO_COMPAT_FEATURE(sb,mask)			\
	EXT2_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
#define EXT2_CLEAR_INCOMPAT_FEATURE(sb,mask)			\
	EXT2_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)

#define EXT2_FEATURE_COMPAT_DIR_PREALLOC	0x0001
#define EXT2_FEATURE_COMPAT_IMAGIC_INODES	0x0002
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL		0x0004
#define EXT2_FEATURE_COMPAT_EXT_ATTR		0x0008
#define EXT2_FEATURE_COMPAT_RESIZE_INO		0x0010
#define EXT2_FEATURE_COMPAT_DIR_INDEX		0x0020
#define EXT2_FEATURE_COMPAT_ANY			0xffffffff

#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER	0x0001
#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE	0x0002
#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR	0x0004
#define EXT2_FEATURE_RO_COMPAT_ANY		0xffffffff

#define EXT2_FEATURE_INCOMPAT_COMPRESSION	0x0001
#define EXT2_FEATURE_INCOMPAT_FILETYPE		0x0002
#define EXT3_FEATURE_INCOMPAT_RECOVER		0x0004
#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV	0x0008
#define EXT2_FEATURE_INCOMPAT_META_BG		0x0010
#define EXT2_FEATURE_INCOMPAT_ANY		0xffffffff

#define EXT2_FEATURE_COMPAT_SUPP	EXT2_FEATURE_COMPAT_EXT_ATTR
#define EXT2_FEATURE_INCOMPAT_SUPP	(EXT2_FEATURE_INCOMPAT_FILETYPE| \
					 EXT2_FEATURE_INCOMPAT_META_BG)
#define EXT2_FEATURE_RO_COMPAT_SUPP	(EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
					 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
					 EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
#define EXT2_FEATURE_RO_COMPAT_UNSUPPORTED	~EXT2_FEATURE_RO_COMPAT_SUPP
#define EXT2_FEATURE_INCOMPAT_UNSUPPORTED	~EXT2_FEATURE_INCOMPAT_SUPP

/*
 * Default values for user and/or group using reserved blocks
 */
#define	EXT2_DEF_RESUID		0
#define	EXT2_DEF_RESGID		0

/*
 * Default mount options
 */
#define EXT2_DEFM_DEBUG		0x0001
#define EXT2_DEFM_BSDGROUPS	0x0002
#define EXT2_DEFM_XATTR_USER	0x0004
#define EXT2_DEFM_ACL		0x0008
#define EXT2_DEFM_UID16		0x0010
    /* Not used by ext2, but reserved for use by ext3 */
#define EXT3_DEFM_JMODE		0x0060 
#define EXT3_DEFM_JMODE_DATA	0x0020
#define EXT3_DEFM_JMODE_ORDERED	0x0040
#define EXT3_DEFM_JMODE_WBACK	0x0060

/*
 * Structure of a directory entry
 */
#define EXT2_NAME_LEN 255

struct ext2_dir_entry {
	__le32	inode;			/* Inode number */
	__le16	rec_len;		/* Directory entry length */
	__le16	name_len;		/* Name length */
	char	name[EXT2_NAME_LEN];	/* File name */
};

/*
 * The new version of the directory entry.  Since EXT2 structures are
 * stored in intel byte order, and the name_len field could never be
 * bigger than 255 chars, it's safe to reclaim the extra byte for the
 * file_type field.
 */
struct ext2_dir_entry_2 {
	__le32	inode;			/* Inode number */
	__le16	rec_len;		/* Directory entry length */
	__u8	name_len;		/* Name length */
	__u8	file_type;
	char	name[EXT2_NAME_LEN];	/* File name */
};

/*
 * Ext2 directory file types.  Only the low 3 bits are used.  The
 * other bits are reserved for now.
 */
enum {
	EXT2_FT_UNKNOWN,
	EXT2_FT_REG_FILE,
	EXT2_FT_DIR,
	EXT2_FT_CHRDEV,
	EXT2_FT_BLKDEV,
	EXT2_FT_FIFO,
	EXT2_FT_SOCK,
	EXT2_FT_SYMLINK,
	EXT2_FT_MAX
};

/*
 * EXT2_DIR_PAD defines the directory entries boundaries
 *
 * NOTE: It must be a multiple of 4
 */
#define EXT2_DIR_PAD		 	4
#define EXT2_DIR_ROUND 			(EXT2_DIR_PAD - 1)
#define EXT2_DIR_REC_LEN(name_len)	(((name_len) + 8 + EXT2_DIR_ROUND) & \
					 ~EXT2_DIR_ROUND)
#define EXT2_MAX_REC_LEN		((1<<16)-1)

#endif	/* _LINUX_EXT2_FS_H */

cmd: