SM0 She11

Full Path (server): /usr/include/linux

📄 a.out.h [E] [D]
📄 acct.h [E] [D]
📄 adb.h [E] [D]
📄 adfs_fs.h [E] [D]
📄 affs_hardblocks.h [E] [D]
📄 agpgart.h [E] [D]
📄 aio_abi.h [E] [D]
📄 apm_bios.h [E] [D]
📄 arcfb.h [E] [D]
📄 atalk.h [E] [D]
📄 atm.h [E] [D]
📄 atm_eni.h [E] [D]
📄 atm_he.h [E] [D]
📄 atm_idt77105.h [E] [D]
📄 atm_nicstar.h [E] [D]
📄 atm_tcp.h [E] [D]
📄 atm_zatm.h [E] [D]
📄 atmapi.h [E] [D]
📄 atmarp.h [E] [D]
📄 atmbr2684.h [E] [D]
📄 atmclip.h [E] [D]
📄 atmdev.h [E] [D]
📄 atmioc.h [E] [D]
📄 atmlec.h [E] [D]
📄 atmmpc.h [E] [D]
📄 atmppp.h [E] [D]
📄 atmsap.h [E] [D]
📄 atmsvc.h [E] [D]
📄 audit.h [E] [D]
📄 auto_fs.h [E] [D]
📄 auto_fs4.h [E] [D]
📄 auxvec.h [E] [D]
📄 ax25.h [E] [D]
📄 b1lli.h [E] [D]
📄 baycom.h [E] [D]
📄 bfs_fs.h [E] [D]
📄 binfmts.h [E] [D]
📄 blkpg.h [E] [D]
📄 blktrace_api.h [E] [D]
📄 bpf.h [E] [D]
📄 bpf_common.h [E] [D]
📄 bpf_perf_event.h [E] [D]
📄 bpqether.h [E] [D]
📄 bsg.h [E] [D]
📄 bt-bmc.h [E] [D]
📄 btrfs.h [E] [D]
📁 byteorder Open [D]
📁 caif Open [D]
📁 can Open [D]
📄 can.h [E] [D]
📄 capability.h [E] [D]
📄 capi.h [E] [D]
📄 cciss_defs.h [E] [D]
📄 cciss_ioctl.h [E] [D]
📄 cdrom.h [E] [D]
📄 cgroupstats.h [E] [D]
📄 chio.h [E] [D]
📄 cm4000_cs.h [E] [D]
📄 cn_proc.h [E] [D]
📄 coda.h [E] [D]
📄 coda_psdev.h [E] [D]
📄 coff.h [E] [D]
📄 connector.h [E] [D]
📄 const.h [E] [D]
📄 cramfs_fs.h [E] [D]
📄 cuda.h [E] [D]
📄 cyclades.h [E] [D]
📄 cycx_cfm.h [E] [D]
📄 dcbnl.h [E] [D]
📄 dccp.h [E] [D]
📄 devlink.h [E] [D]
📄 dlm.h [E] [D]
📄 dlm_device.h [E] [D]
📄 dlm_netlink.h [E] [D]
📄 dlm_plock.h [E] [D]
📄 dlmconstants.h [E] [D]
📄 dm-ioctl.h [E] [D]
📄 dm-log-userspace.h [E] [D]
📄 dn.h [E] [D]
📄 dqblk_xfs.h [E] [D]
📁 dvb Open [D]
📄 edd.h [E] [D]
📄 efs_fs_sb.h [E] [D]
📄 elf-em.h [E] [D]
📄 elf-fdpic.h [E] [D]
📄 elf.h [E] [D]
📄 elfcore.h [E] [D]
📄 errno.h [E] [D]
📄 errqueue.h [E] [D]
📄 ethtool.h [E] [D]
📄 eventpoll.h [E] [D]
📄 fadvise.h [E] [D]
📄 falloc.h [E] [D]
📄 fanotify.h [E] [D]
📄 fb.h [E] [D]
📄 fcntl.h [E] [D]
📄 fd.h [E] [D]
📄 fdreg.h [E] [D]
📄 fib_rules.h [E] [D]
📄 fiemap.h [E] [D]
📄 filter.h [E] [D]
📄 firewire-cdev.h [E] [D]
📄 firewire-constants.h [E] [D]
📄 flat.h [E] [D]
📄 fou.h [E] [D]
📄 fs.h [E] [D]
📄 fsl_hypervisor.h [E] [D]
📄 fuse.h [E] [D]
📄 futex.h [E] [D]
📄 gameport.h [E] [D]
📄 gen_stats.h [E] [D]
📄 genetlink.h [E] [D]
📄 gfs2_ondisk.h [E] [D]
📄 gigaset_dev.h [E] [D]
📁 hdlc Open [D]
📄 hdlc.h [E] [D]
📄 hdlcdrv.h [E] [D]
📄 hdreg.h [E] [D]
📄 hid.h [E] [D]
📄 hiddev.h [E] [D]
📄 hidraw.h [E] [D]
📄 hpet.h [E] [D]
📁 hsi Open [D]
📄 hw_breakpoint.h [E] [D]
📄 hyperv.h [E] [D]
📄 hysdn_if.h [E] [D]
📄 i2c-dev.h [E] [D]
📄 i2c.h [E] [D]
📄 i2o-dev.h [E] [D]
📄 i8k.h [E] [D]
📄 icmp.h [E] [D]
📄 icmpv6.h [E] [D]
📄 if.h [E] [D]
📄 if_addr.h [E] [D]
📄 if_addrlabel.h [E] [D]
📄 if_alg.h [E] [D]
📄 if_arcnet.h [E] [D]
📄 if_arp.h [E] [D]
📄 if_bonding.h [E] [D]
📄 if_bridge.h [E] [D]
📄 if_cablemodem.h [E] [D]
📄 if_eql.h [E] [D]
📄 if_ether.h [E] [D]
📄 if_fc.h [E] [D]
📄 if_fddi.h [E] [D]
📄 if_frad.h [E] [D]
📄 if_hippi.h [E] [D]
📄 if_infiniband.h [E] [D]
📄 if_link.h [E] [D]
📄 if_ltalk.h [E] [D]
📄 if_macsec.h [E] [D]
📄 if_packet.h [E] [D]
📄 if_phonet.h [E] [D]
📄 if_plip.h [E] [D]
📄 if_ppp.h [E] [D]
📄 if_pppol2tp.h [E] [D]
📄 if_pppox.h [E] [D]
📄 if_slip.h [E] [D]
📄 if_team.h [E] [D]
📄 if_tun.h [E] [D]
📄 if_tunnel.h [E] [D]
📄 if_vlan.h [E] [D]
📄 if_x25.h [E] [D]
📄 ife.h [E] [D]
📄 igmp.h [E] [D]
📁 iio Open [D]
📄 in.h [E] [D]
📄 in6.h [E] [D]
📄 in_route.h [E] [D]
📄 inet_diag.h [E] [D]
📄 inotify.h [E] [D]
📄 input.h [E] [D]
📄 ioctl.h [E] [D]
📄 ip.h [E] [D]
📄 ip6_tunnel.h [E] [D]
📄 ip_vs.h [E] [D]
📄 ipc.h [E] [D]
📄 ipmi.h [E] [D]
📄 ipmi_msgdefs.h [E] [D]
📄 ipsec.h [E] [D]
📄 ipv6.h [E] [D]
📄 ipv6_route.h [E] [D]
📄 ipx.h [E] [D]
📄 irda.h [E] [D]
📄 irqnr.h [E] [D]
📁 isdn Open [D]
📄 isdn.h [E] [D]
📄 isdn_divertif.h [E] [D]
📄 isdn_ppp.h [E] [D]
📄 isdnif.h [E] [D]
📄 iso_fs.h [E] [D]
📄 ivtv.h [E] [D]
📄 ivtvfb.h [E] [D]
📄 ixjuser.h [E] [D]
📄 jffs2.h [E] [D]
📄 joystick.h [E] [D]
📄 kd.h [E] [D]
📄 kdev_t.h [E] [D]
📄 kernel-page-flags.h [E] [D]
📄 kernel.h [E] [D]
📄 kernelcapi.h [E] [D]
📄 kexec.h [E] [D]
📄 keyboard.h [E] [D]
📄 keyctl.h [E] [D]
📄 kvm.h [E] [D]
📄 kvm_para.h [E] [D]
📄 l2tp.h [E] [D]
📄 libc-compat.h [E] [D]
📄 limits.h [E] [D]
📄 llc.h [E] [D]
📄 loop.h [E] [D]
📄 lp.h [E] [D]
📄 lwtunnel.h [E] [D]
📄 magic.h [E] [D]
📄 major.h [E] [D]
📄 map_to_7segment.h [E] [D]
📄 matroxfb.h [E] [D]
📄 mdio.h [E] [D]
📄 media.h [E] [D]
📄 mei.h [E] [D]
📄 membarrier.h [E] [D]
📄 memfd.h [E] [D]
📄 mempolicy.h [E] [D]
📄 meye.h [E] [D]
📄 mii.h [E] [D]
📄 minix_fs.h [E] [D]
📄 mman.h [E] [D]
📁 mmc Open [D]
📄 mmtimer.h [E] [D]
📄 mpls.h [E] [D]
📄 mqueue.h [E] [D]
📄 mroute.h [E] [D]
📄 mroute6.h [E] [D]
📄 msdos_fs.h [E] [D]
📄 msg.h [E] [D]
📄 mtio.h [E] [D]
📄 n_r3964.h [E] [D]
📄 nbd.h [E] [D]
📄 ncp.h [E] [D]
📄 ncp_fs.h [E] [D]
📄 ncp_mount.h [E] [D]
📄 ncp_no.h [E] [D]
📄 ndctl.h [E] [D]
📄 neighbour.h [E] [D]
📄 net.h [E] [D]
📄 net_dropmon.h [E] [D]
📄 net_namespace.h [E] [D]
📄 net_tstamp.h [E] [D]
📄 netconf.h [E] [D]
📄 netdevice.h [E] [D]
📁 netfilter Open [D]
📄 netfilter.h [E] [D]
📁 netfilter_arp Open [D]
📄 netfilter_arp.h [E] [D]
📁 netfilter_bridge Open [D]
📄 netfilter_bridge.h [E] [D]
📄 netfilter_decnet.h [E] [D]
📁 netfilter_ipv4 Open [D]
📄 netfilter_ipv4.h [E] [D]
📁 netfilter_ipv6 Open [D]
📄 netfilter_ipv6.h [E] [D]
📄 netlink.h [E] [D]
📄 netlink_diag.h [E] [D]
📄 netrom.h [E] [D]
📄 nfc.h [E] [D]
📄 nfs.h [E] [D]
📄 nfs2.h [E] [D]
📄 nfs3.h [E] [D]
📄 nfs4.h [E] [D]
📄 nfs4_mount.h [E] [D]
📄 nfs_fs.h [E] [D]
📄 nfs_idmap.h [E] [D]
📄 nfs_mount.h [E] [D]
📄 nfsacl.h [E] [D]
📁 nfsd Open [D]
📄 nl80211.h [E] [D]
📄 nubus.h [E] [D]
📄 nvme_ioctl.h [E] [D]
📄 nvram.h [E] [D]
📄 omap3isp.h [E] [D]
📄 omapfb.h [E] [D]
📄 oom.h [E] [D]
📄 openvswitch.h [E] [D]
📄 packet_diag.h [E] [D]
📄 param.h [E] [D]
📄 parport.h [E] [D]
📄 patchkey.h [E] [D]
📄 pci.h [E] [D]
📄 pci_regs.h [E] [D]
📄 perf_event.h [E] [D]
📄 personality.h [E] [D]
📄 pfkeyv2.h [E] [D]
📄 pg.h [E] [D]
📄 phantom.h [E] [D]
📄 phonet.h [E] [D]
📄 pkt_cls.h [E] [D]
📄 pkt_sched.h [E] [D]
📄 pktcdvd.h [E] [D]
📄 pmu.h [E] [D]
📄 poll.h [E] [D]
📄 posix_types.h [E] [D]
📄 ppdev.h [E] [D]
📄 ppp-comp.h [E] [D]
📄 ppp-ioctl.h [E] [D]
📄 ppp_defs.h [E] [D]
📄 pps.h [E] [D]
📄 prctl.h [E] [D]
📄 psample.h [E] [D]
📄 ptp_clock.h [E] [D]
📄 ptrace.h [E] [D]
📄 qnx4_fs.h [E] [D]
📄 qnxtypes.h [E] [D]
📄 quota.h [E] [D]
📄 radeonfb.h [E] [D]
📁 raid Open [D]
📄 random.h [E] [D]
📄 raw.h [E] [D]
📄 rds.h [E] [D]
📄 reboot.h [E] [D]
📄 reiserfs_fs.h [E] [D]
📄 reiserfs_xattr.h [E] [D]
📄 resource.h [E] [D]
📄 rfkill.h [E] [D]
📄 romfs_fs.h [E] [D]
📄 rose.h [E] [D]
📄 route.h [E] [D]
📄 rtc.h [E] [D]
📄 rtnetlink.h [E] [D]
📄 scc.h [E] [D]
📄 sched.h [E] [D]
📄 screen_info.h [E] [D]
📄 sctp.h [E] [D]
📄 sdla.h [E] [D]
📄 seccomp.h [E] [D]
📄 securebits.h [E] [D]
📄 selinux_netlink.h [E] [D]
📄 sem.h [E] [D]
📄 serial.h [E] [D]
📄 serial_core.h [E] [D]
📄 serial_reg.h [E] [D]
📄 serio.h [E] [D]
📄 shm.h [E] [D]
📄 signal.h [E] [D]
📄 signalfd.h [E] [D]
📄 snmp.h [E] [D]
📄 sock_diag.h [E] [D]
📄 socket.h [E] [D]
📄 sockios.h [E] [D]
📄 som.h [E] [D]
📄 sonet.h [E] [D]
📄 sonypi.h [E] [D]
📄 sound.h [E] [D]
📄 soundcard.h [E] [D]
📁 spi Open [D]
📄 stat.h [E] [D]
📄 stddef.h [E] [D]
📄 string.h [E] [D]
📁 sunrpc Open [D]
📄 suspend_ioctls.h [E] [D]
📄 swab.h [E] [D]
📄 synclink.h [E] [D]
📄 sysctl.h [E] [D]
📄 sysinfo.h [E] [D]
📄 target_core_user.h [E] [D]
📄 taskstats.h [E] [D]
📁 tc_act Open [D]
📁 tc_ematch Open [D]
📄 tcp.h [E] [D]
📄 tcp_metrics.h [E] [D]
📄 telephony.h [E] [D]
📄 termios.h [E] [D]
📄 time.h [E] [D]
📄 times.h [E] [D]
📄 timex.h [E] [D]
📄 tiocl.h [E] [D]
📄 tipc.h [E] [D]
📄 tipc_config.h [E] [D]
📄 toshiba.h [E] [D]
📄 tty.h [E] [D]
📄 tty_flags.h [E] [D]
📄 types.h [E] [D]
📄 udf_fs_i.h [E] [D]
📄 udp.h [E] [D]
📄 uhid.h [E] [D]
📄 uinput.h [E] [D]
📄 uio.h [E] [D]
📄 ultrasound.h [E] [D]
📄 un.h [E] [D]
📄 unistd.h [E] [D]
📄 unix_diag.h [E] [D]
📁 usb Open [D]
📄 usbdevice_fs.h [E] [D]
📄 userfaultfd.h [E] [D]
📄 utime.h [E] [D]
📄 utsname.h [E] [D]
📄 uuid.h [E] [D]
📄 uvcvideo.h [E] [D]
📄 v4l2-common.h [E] [D]
📄 v4l2-controls.h [E] [D]
📄 v4l2-dv-timings.h [E] [D]
📄 v4l2-mediabus.h [E] [D]
📄 v4l2-subdev.h [E] [D]
📄 version.h [E] [D]
📄 veth.h [E] [D]
📄 vfio.h [E] [D]
📄 vhost.h [E] [D]
📄 videodev2.h [E] [D]
📄 virtio_9p.h [E] [D]
📄 virtio_balloon.h [E] [D]
📄 virtio_blk.h [E] [D]
📄 virtio_config.h [E] [D]
📄 virtio_console.h [E] [D]
📄 virtio_gpu.h [E] [D]
📄 virtio_ids.h [E] [D]
📄 virtio_input.h [E] [D]
📄 virtio_net.h [E] [D]
📄 virtio_pci.h [E] [D]
📄 virtio_ring.h [E] [D]
📄 virtio_rng.h [E] [D]
📄 virtio_scsi.h [E] [D]
📄 virtio_types.h [E] [D]
📄 virtio_vsock.h [E] [D]
📄 vm_sockets.h [E] [D]
📄 vsockmon.h [E] [D]
📄 vt.h [E] [D]
📄 vtpm_proxy.h [E] [D]
📄 wait.h [E] [D]
📄 wanrouter.h [E] [D]
📄 watchdog.h [E] [D]
📁 wimax Open [D]
📄 wimax.h [E] [D]
📄 wireless.h [E] [D]
📄 wmi.h [E] [D]
📄 x25.h [E] [D]
📄 xattr.h [E] [D]
📄 xfrm.h [E] [D]

Editing: gfs2_ondisk.h

/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU General Public License v.2.
 */

#ifndef __GFS2_ONDISK_DOT_H__
#define __GFS2_ONDISK_DOT_H__

#include <linux/types.h>

#define GFS2_MAGIC		0x01161970
#define GFS2_BASIC_BLOCK	512
#define GFS2_BASIC_BLOCK_SHIFT	9

/* Lock numbers of the LM_TYPE_NONDISK type */

#define GFS2_MOUNT_LOCK		0
#define GFS2_LIVE_LOCK		1
#define GFS2_TRANS_LOCK		2
#define GFS2_RENAME_LOCK	3
#define GFS2_CONTROL_LOCK	4
#define GFS2_MOUNTED_LOCK	5

/* Format numbers for various metadata types */

#define GFS2_FORMAT_NONE	0
#define GFS2_FORMAT_SB		100
#define GFS2_FORMAT_RG		200
#define GFS2_FORMAT_RB		300
#define GFS2_FORMAT_DI		400
#define GFS2_FORMAT_IN		500
#define GFS2_FORMAT_LF		600
#define GFS2_FORMAT_JD		700
#define GFS2_FORMAT_LH		800
#define GFS2_FORMAT_LD		900
#define GFS2_FORMAT_LB		1000
#define GFS2_FORMAT_EA		1600
#define GFS2_FORMAT_ED		1700
#define GFS2_FORMAT_QC		1400
/* These are format numbers for entities contained in files */
#define GFS2_FORMAT_RI		1100
#define GFS2_FORMAT_DE		1200
#define GFS2_FORMAT_QU		1500
/* These are part of the superblock */
#define GFS2_FORMAT_FS		1801
#define GFS2_FORMAT_MULTI	1900

/*
 * An on-disk inode number
 */

struct gfs2_inum {
	__be64 no_formal_ino;
	__be64 no_addr;
};

/*
 * Generic metadata head structure
 * Every inplace buffer logged in the journal must start with this.
 */

#define GFS2_METATYPE_NONE	0
#define GFS2_METATYPE_SB	1
#define GFS2_METATYPE_RG	2
#define GFS2_METATYPE_RB	3
#define GFS2_METATYPE_DI	4
#define GFS2_METATYPE_IN	5
#define GFS2_METATYPE_LF	6
#define GFS2_METATYPE_JD	7
#define GFS2_METATYPE_LH	8
#define GFS2_METATYPE_LD	9
#define GFS2_METATYPE_LB	12
#define GFS2_METATYPE_EA	10
#define GFS2_METATYPE_ED	11
#define GFS2_METATYPE_QC	14

struct gfs2_meta_header {
	__be32 mh_magic;
	__be32 mh_type;
	__be64 __pad0;		/* Was generation number in gfs1 */
	__be32 mh_format;
	/* This union is to keep userspace happy */
	union {
		__be32 mh_jid;		/* Was incarnation number in gfs1 */
		__be32 __pad1;
	};
};

/*
 * super-block structure
 *
 * It's probably good if SIZEOF_SB <= GFS2_BASIC_BLOCK (512 bytes)
 *
 * Order is important, need to be able to read old superblocks to do on-disk
 * version upgrades.
 */

/* Address of superblock in GFS2 basic blocks */
#define GFS2_SB_ADDR		128

/* The lock number for the superblock (must be zero) */
#define GFS2_SB_LOCK		0

/* Requirement:  GFS2_LOCKNAME_LEN % 8 == 0
   Includes: the fencing zero at the end */
#define GFS2_LOCKNAME_LEN	64

struct gfs2_sb {
	struct gfs2_meta_header sb_header;

__be32 sb_fs_format;
	__be32 sb_multihost_format;
	__u32  __pad0;	/* Was superblock flags in gfs1 */

__be32 sb_bsize;
	__be32 sb_bsize_shift;
	__u32 __pad1;	/* Was journal segment size in gfs1 */

struct gfs2_inum sb_master_dir; /* Was jindex dinode in gfs1 */
	struct gfs2_inum __pad2; /* Was rindex dinode in gfs1 */
	struct gfs2_inum sb_root_dir;

char sb_lockproto[GFS2_LOCKNAME_LEN];
	char sb_locktable[GFS2_LOCKNAME_LEN];

struct gfs2_inum __pad3; /* Was quota inode in gfs1 */
	struct gfs2_inum __pad4; /* Was licence inode in gfs1 */
#define GFS2_HAS_UUID 1
	__u8 sb_uuid[16]; /* The UUID, maybe 0 for backwards compat */
};

/*
 * resource index structure
 */

struct gfs2_rindex {
	__be64 ri_addr;	/* grp block disk address */
	__be32 ri_length;	/* length of rgrp header in fs blocks */
	__u32 __pad;

__be64 ri_data0;	/* first data location */
	__be32 ri_data;	/* num of data blocks in rgrp */

__be32 ri_bitbytes;	/* number of bytes in data bitmaps */

__u8 ri_reserved[64];
};

/*
 * resource group header structure
 */

/* Number of blocks per byte in rgrp */
#define GFS2_NBBY		4
#define GFS2_BIT_SIZE		2
#define GFS2_BIT_MASK		0x00000003

#define GFS2_BLKST_FREE		0
#define GFS2_BLKST_USED		1
#define GFS2_BLKST_UNLINKED	2
#define GFS2_BLKST_DINODE	3

#define GFS2_RGF_JOURNAL	0x00000001
#define GFS2_RGF_METAONLY	0x00000002
#define GFS2_RGF_DATAONLY	0x00000004
#define GFS2_RGF_NOALLOC	0x00000008
#define GFS2_RGF_TRIMMED	0x00000010

struct gfs2_rgrp_lvb {
	__be32 rl_magic;
	__be32 rl_flags;
	__be32 rl_free;
	__be32 rl_dinodes;
	__be64 rl_igeneration;
	__be32 rl_unlinked;
	__be32 __pad;
};

struct gfs2_rgrp {
	struct gfs2_meta_header rg_header;

__be32 rg_flags;
	__be32 rg_free;
	__be32 rg_dinodes;
	__be32 __pad;
	__be64 rg_igeneration;

__u8 rg_reserved[80]; /* Several fields from gfs1 now reserved */
};

/*
 * quota structure
 */

struct gfs2_quota {
	__be64 qu_limit;
	__be64 qu_warn;
	__be64 qu_value;
	__u8 qu_reserved[64];
};

/*
 * dinode structure
 */

#define GFS2_MAX_META_HEIGHT	10
#define GFS2_DIR_MAX_DEPTH	17

#define DT2IF(dt) (((dt) << 12) & S_IFMT)
#define IF2DT(sif) (((sif) & S_IFMT) >> 12)

enum {
	gfs2fl_Jdata		= 0,
	gfs2fl_ExHash		= 1,
	gfs2fl_Unused		= 2,
	gfs2fl_EaIndirect	= 3,
	gfs2fl_Directio		= 4,
	gfs2fl_Immutable	= 5,
	gfs2fl_AppendOnly	= 6,
	gfs2fl_NoAtime		= 7,
	gfs2fl_Sync		= 8,
	gfs2fl_System		= 9,
	gfs2fl_TopLevel		= 10,
	gfs2fl_TruncInProg	= 29,
	gfs2fl_InheritDirectio	= 30,
	gfs2fl_InheritJdata	= 31,
};

/* Dinode flags */
#define GFS2_DIF_JDATA			0x00000001
#define GFS2_DIF_EXHASH			0x00000002
#define GFS2_DIF_UNUSED			0x00000004  /* only in gfs1 */
#define GFS2_DIF_EA_INDIRECT		0x00000008
#define GFS2_DIF_DIRECTIO		0x00000010
#define GFS2_DIF_IMMUTABLE		0x00000020
#define GFS2_DIF_APPENDONLY		0x00000040
#define GFS2_DIF_NOATIME		0x00000080
#define GFS2_DIF_SYNC			0x00000100
#define GFS2_DIF_SYSTEM			0x00000200 /* New in gfs2 */
#define GFS2_DIF_TOPDIR			0x00000400 /* New in gfs2 */
#define GFS2_DIF_TRUNC_IN_PROG		0x20000000 /* New in gfs2 */
#define GFS2_DIF_INHERIT_DIRECTIO	0x40000000 /* only in gfs1 */
#define GFS2_DIF_INHERIT_JDATA		0x80000000

struct gfs2_dinode {
	struct gfs2_meta_header di_header;

struct gfs2_inum di_num;

__be32 di_mode;	/* mode of file */
	__be32 di_uid;	/* owner's user id */
	__be32 di_gid;	/* owner's group id */
	__be32 di_nlink;	/* number of links to this file */
	__be64 di_size;	/* number of bytes in file */
	__be64 di_blocks;	/* number of blocks in file */
	__be64 di_atime;	/* time last accessed */
	__be64 di_mtime;	/* time last modified */
	__be64 di_ctime;	/* time last changed */
	__be32 di_major;	/* device major number */
	__be32 di_minor;	/* device minor number */

/* This section varies from gfs1. Padding added to align with
         * remainder of dinode
	 */
	__be64 di_goal_meta;	/* rgrp to alloc from next */
	__be64 di_goal_data;	/* data block goal */
	__be64 di_generation;	/* generation number for NFS */

__be32 di_flags;	/* GFS2_DIF_... */
	__be32 di_payload_format;  /* GFS2_FORMAT_... */
	__u16 __pad1;	/* Was ditype in gfs1 */
	__be16 di_height;	/* height of metadata */
	__u32 __pad2;	/* Unused incarnation number from gfs1 */

/* These only apply to directories  */
	__u16 __pad3;	/* Padding */
	__be16 di_depth;	/* Number of bits in the table */
	__be32 di_entries;	/* The number of entries in the directory */

struct gfs2_inum __pad4; /* Unused even in current gfs1 */

__be64 di_eattr;	/* extended attribute block number */
	__be32 di_atime_nsec;   /* nsec portion of atime */
	__be32 di_mtime_nsec;   /* nsec portion of mtime */
	__be32 di_ctime_nsec;   /* nsec portion of ctime */

__u8 di_reserved[44];
};

/*
 * directory structure - many of these per directory file
 */

#define GFS2_FNAMESIZE		255
#define GFS2_DIRENT_SIZE(name_len) ((sizeof(struct gfs2_dirent) + (name_len) + 7) & ~7)
#define GFS2_MIN_DIRENT_SIZE (GFS2_DIRENT_SIZE(1))

struct gfs2_dirent {
	struct gfs2_inum de_inum;
	__be32 de_hash;
	__be16 de_rec_len;
	__be16 de_name_len;
	__be16 de_type;
	__be16 de_rahead;
	union {
		__u8 __pad[12];
		struct {
			__u32 de_cookie; /* ondisk value not used */
			__u8 pad3[8];
		};
	};
};

/*
 * Header of leaf directory nodes
 */

struct gfs2_leaf {
	struct gfs2_meta_header lf_header;

__be16 lf_depth;		/* Depth of leaf */
	__be16 lf_entries;		/* Number of dirents in leaf */
	__be32 lf_dirent_format;	/* Format of the dirents */
	__be64 lf_next;			/* Next leaf, if overflow */

union {
		__u8 lf_reserved[64];
		struct {
			__be64 lf_inode;	/* Dir inode number */
			__be32 lf_dist;		/* Dist from inode on chain */
			__be32 lf_nsec;		/* Last ins/del nsecs */
			__be64 lf_sec;		/* Last ins/del in secs */
			__u8 lf_reserved2[40];
		};
	};
};

/*
 * Extended attribute header format
 *
 * This works in a similar way to dirents. There is a fixed size header
 * followed by a variable length section made up of the name and the
 * associated data. In the case of a "stuffed" entry, the value is
 * __inline__ directly after the name, the ea_num_ptrs entry will be
 * zero in that case. For non-"stuffed" entries, there will be
 * a set of pointers (aligned to 8 byte boundary) to the block(s)
 * containing the value.
 *
 * The blocks containing the values and the blocks containing the
 * extended attribute headers themselves all start with the common
 * metadata header. Each inode, if it has extended attributes, will
 * have either a single block containing the extended attribute headers
 * or a single indirect block pointing to blocks containing the
 * extended attribure headers.
 *
 * The maximim size of the data part of an extended attribute is 64k
 * so the number of blocks required depends upon block size. Since the
 * block size also determines the number of pointers in an indirect
 * block, its a fairly complicated calculation to work out the maximum
 * number of blocks that an inode may have relating to extended attributes.
 *
 */

#define GFS2_EA_MAX_NAME_LEN	255
#define GFS2_EA_MAX_DATA_LEN	65536

#define GFS2_EATYPE_UNUSED	0
#define GFS2_EATYPE_USR		1
#define GFS2_EATYPE_SYS		2
#define GFS2_EATYPE_SECURITY	3

#define GFS2_EATYPE_LAST	3
#define GFS2_EATYPE_VALID(x)	((x) <= GFS2_EATYPE_LAST)

#define GFS2_EAFLAG_LAST	0x01	/* last ea in block */

struct gfs2_ea_header {
	__be32 ea_rec_len;
	__be32 ea_data_len;
	__u8 ea_name_len;	/* no NULL pointer after the string */
	__u8 ea_type;		/* GFS2_EATYPE_... */
	__u8 ea_flags;		/* GFS2_EAFLAG_... */
	__u8 ea_num_ptrs;
	__u32 __pad;
};

/*
 * Log header structure
 */

#define GFS2_LOG_HEAD_UNMOUNT	0x00000001	/* log is clean */

struct gfs2_log_header {
	struct gfs2_meta_header lh_header;

__be64 lh_sequence;	/* Sequence number of this transaction */
	__be32 lh_flags;	/* GFS2_LOG_HEAD_... */
	__be32 lh_tail;		/* Block number of log tail */
	__be32 lh_blkno;
	__be32 lh_hash;
};

/*
 * Log type descriptor
 */

#define GFS2_LOG_DESC_METADATA	300
/* ld_data1 is the number of metadata blocks in the descriptor.
   ld_data2 is unused. */

#define GFS2_LOG_DESC_REVOKE	301
/* ld_data1 is the number of revoke blocks in the descriptor.
   ld_data2 is unused. */

#define GFS2_LOG_DESC_JDATA	302
/* ld_data1 is the number of data blocks in the descriptor.
   ld_data2 is unused. */

struct gfs2_log_descriptor {
	struct gfs2_meta_header ld_header;

__be32 ld_type;		/* GFS2_LOG_DESC_... */
	__be32 ld_length;	/* Number of buffers in this chunk */
	__be32 ld_data1;	/* descriptor-specific field */
	__be32 ld_data2;	/* descriptor-specific field */

__u8 ld_reserved[32];
};

/*
 * Inum Range
 * Describe a range of formal inode numbers allocated to
 * one machine to assign to inodes.
 */

#define GFS2_INUM_QUANTUM	1048576

struct gfs2_inum_range {
	__be64 ir_start;
	__be64 ir_length;
};

/*
 * Statfs change
 * Describes an change to the pool of free and allocated
 * blocks.
 */

struct gfs2_statfs_change {
	__be64 sc_total;
	__be64 sc_free;
	__be64 sc_dinodes;
};

/*
 * Quota change
 * Describes an allocation change for a particular
 * user or group.
 */

#define GFS2_QCF_USER		0x00000001

struct gfs2_quota_change {
	__be64 qc_change;
	__be32 qc_flags;	/* GFS2_QCF_... */
	__be32 qc_id;
};

struct gfs2_quota_lvb {
        __be32 qb_magic;
        __u32 __pad;
        __be64 qb_limit;      /* Hard limit of # blocks to alloc */
        __be64 qb_warn;       /* Warn user when alloc is above this # */
        __be64 qb_value;       /* Current # blocks allocated */
};

#endif /* __GFS2_ONDISK_DOT_H__ */