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/usr/src/kernels/4.18.0-553.56.1.el8_10.x86_64/include/uapi/linux/

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📁 android		[ DEL ]
📁 byteorder		[ DEL ]
📁 caif		[ DEL ]
📁 can		[ DEL ]
📁 cifs		[ DEL ]
📁 dvb		[ DEL ]
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📁 netfilter		[ DEL ]
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📁 netfilter_ipv4		[ DEL ]
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📁 nfsd		[ DEL ]
📁 raid		[ DEL ]
📁 sched		[ DEL ]
📁 spi		[ DEL ]
📁 sunrpc		[ DEL ]
📁 tc_act		[ DEL ]
📁 tc_ematch		[ DEL ]
📁 usb		[ DEL ]
📁 wimax		[ DEL ]
📄 Kbuild	352 B	[ EDIT ] \| [ DEL ]
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📄 auto_fs.h	6,450 B	[ EDIT ] \| [ DEL ]
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📄 cciss_ioctl.h	2,790 B	[ EDIT ] \| [ DEL ]
📄 cdrom.h	28,902 B	[ EDIT ] \| [ DEL ]
📄 cec-funcs.h	53,293 B	[ EDIT ] \| [ DEL ]
📄 cec.h	37,611 B	[ EDIT ] \| [ DEL ]
📄 cfm_bridge.h	1,466 B	[ EDIT ] \| [ DEL ]
📄 cgroupstats.h	2,219 B	[ EDIT ] \| [ DEL ]
📄 chio.h	5,351 B	[ EDIT ] \| [ DEL ]
📄 close_range.h	392 B	[ EDIT ] \| [ DEL ]
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📄 coda.h	17,682 B	[ EDIT ] \| [ DEL ]
📄 coda_psdev.h	798 B	[ EDIT ] \| [ DEL ]
📄 coff.h	12,476 B	[ EDIT ] \| [ DEL ]
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📄 coresight-stm.h	674 B	[ EDIT ] \| [ DEL ]
📄 cramfs_fs.h	3,570 B	[ EDIT ] \| [ DEL ]
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📄 cuda.h	920 B	[ EDIT ] \| [ DEL ]
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📄 dlm_device.h	2,599 B	[ EDIT ] \| [ DEL ]
📄 dlm_netlink.h	1,159 B	[ EDIT ] \| [ DEL ]
📄 dlm_plock.h	909 B	[ EDIT ] \| [ DEL ]
📄 dlmconstants.h	5,080 B	[ EDIT ] \| [ DEL ]
📄 dm-ioctl.h	11,400 B	[ EDIT ] \| [ DEL ]
📄 dm-log-userspace.h	15,191 B	[ EDIT ] \| [ DEL ]
📄 dma-buf.h	5,247 B	[ EDIT ] \| [ DEL ]
📄 dn.h	4,642 B	[ EDIT ] \| [ DEL ]
📄 dqblk_xfs.h	9,245 B	[ EDIT ] \| [ DEL ]
📄 edd.h	5,619 B	[ EDIT ] \| [ DEL ]
📄 efs_fs_sb.h	2,227 B	[ EDIT ] \| [ DEL ]
📄 elf-em.h	2,187 B	[ EDIT ] \| [ DEL ]
📄 elf-fdpic.h	1,139 B	[ EDIT ] \| [ DEL ]
📄 elf.h	13,486 B	[ EDIT ] \| [ DEL ]
📄 elfcore.h	3,062 B	[ EDIT ] \| [ DEL ]
📄 errno.h	23 B	[ EDIT ] \| [ DEL ]
📄 errqueue.h	1,492 B	[ EDIT ] \| [ DEL ]
📄 erspan.h	1,074 B	[ EDIT ] \| [ DEL ]
📄 ethtool.h	83,872 B	[ EDIT ] \| [ DEL ]
📄 ethtool_netlink.h	22,841 B	[ EDIT ] \| [ DEL ]
📄 eventpoll.h	2,869 B	[ EDIT ] \| [ DEL ]
📄 fadvise.h	842 B	[ EDIT ] \| [ DEL ]
📄 falloc.h	3,599 B	[ EDIT ] \| [ DEL ]
📄 fanotify.h	5,356 B	[ EDIT ] \| [ DEL ]
📄 fb.h	16,518 B	[ EDIT ] \| [ DEL ]
📄 fcntl.h	4,189 B	[ EDIT ] \| [ DEL ]
📄 fd.h	11,721 B	[ EDIT ] \| [ DEL ]
📄 fdreg.h	5,420 B	[ EDIT ] \| [ DEL ]
📄 fib_rules.h	2,036 B	[ EDIT ] \| [ DEL ]
📄 fiemap.h	2,775 B	[ EDIT ] \| [ DEL ]
📄 filter.h	2,265 B	[ EDIT ] \| [ DEL ]
📄 firewire-cdev.h	43,886 B	[ EDIT ] \| [ DEL ]
📄 firewire-constants.h	3,231 B	[ EDIT ] \| [ DEL ]
📄 flat.h	2,163 B	[ EDIT ] \| [ DEL ]
📄 fou.h	709 B	[ EDIT ] \| [ DEL ]
📄 fpga-dfl.h	8,743 B	[ EDIT ] \| [ DEL ]
📄 fs.h	13,511 B	[ EDIT ] \| [ DEL ]
📄 fsl_hypervisor.h	7,316 B	[ EDIT ] \| [ DEL ]
📄 fsmap.h	4,385 B	[ EDIT ] \| [ DEL ]
📄 fuse.h	23,529 B	[ EDIT ] \| [ DEL ]
📄 futex.h	5,049 B	[ EDIT ] \| [ DEL ]
📄 gameport.h	912 B	[ EDIT ] \| [ DEL ]
📄 gen_stats.h	1,526 B	[ EDIT ] \| [ DEL ]
📄 genetlink.h	2,190 B	[ EDIT ] \| [ DEL ]
📄 gfs2_ondisk.h	14,739 B	[ EDIT ] \| [ DEL ]
📄 gigaset_dev.h	1,442 B	[ EDIT ] \| [ DEL ]
📄 gpio.h	6,766 B	[ EDIT ] \| [ DEL ]
📄 gsmmux.h	1,041 B	[ EDIT ] \| [ DEL ]
📄 gtp.h	696 B	[ EDIT ] \| [ DEL ]
📄 hash_info.h	936 B	[ EDIT ] \| [ DEL ]
📄 hdlc.h	652 B	[ EDIT ] \| [ DEL ]
📄 hdlcdrv.h	2,923 B	[ EDIT ] \| [ DEL ]
📄 hdreg.h	22,945 B	[ EDIT ] \| [ DEL ]
📄 hid.h	1,916 B	[ EDIT ] \| [ DEL ]
📄 hiddev.h	6,360 B	[ EDIT ] \| [ DEL ]
📄 hidraw.h	2,008 B	[ EDIT ] \| [ DEL ]
📄 hpet.h	785 B	[ EDIT ] \| [ DEL ]
📄 hsr_netlink.h	1,081 B	[ EDIT ] \| [ DEL ]
📄 hw_breakpoint.h	757 B	[ EDIT ] \| [ DEL ]
📄 hyperv.h	11,167 B	[ EDIT ] \| [ DEL ]
📄 hysdn_if.h	1,382 B	[ EDIT ] \| [ DEL ]
📄 i2c-dev.h	2,668 B	[ EDIT ] \| [ DEL ]
📄 i2c.h	7,147 B	[ EDIT ] \| [ DEL ]
📄 i2o-dev.h	11,646 B	[ EDIT ] \| [ DEL ]
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📄 icmp.h	2,990 B	[ EDIT ] \| [ DEL ]
📄 icmpv6.h	4,053 B	[ EDIT ] \| [ DEL ]
📄 idxd.h	8,461 B	[ EDIT ] \| [ DEL ]
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📄 if_alg.h	946 B	[ EDIT ] \| [ DEL ]
📄 if_arcnet.h	3,717 B	[ EDIT ] \| [ DEL ]
📄 if_arp.h	6,592 B	[ EDIT ] \| [ DEL ]
📄 if_bonding.h	5,291 B	[ EDIT ] \| [ DEL ]
📄 if_bridge.h	19,529 B	[ EDIT ] \| [ DEL ]
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📄 if_ether.h	8,263 B	[ EDIT ] \| [ DEL ]
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📄 if_hippi.h	4,235 B	[ EDIT ] \| [ DEL ]
📄 if_infiniband.h	1,245 B	[ EDIT ] \| [ DEL ]
📄 if_link.h	31,698 B	[ EDIT ] \| [ DEL ]
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📄 inet_diag.h	4,687 B	[ EDIT ] \| [ DEL ]
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📄 input-event-codes.h	28,616 B	[ EDIT ] \| [ DEL ]
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📄 ip.h	4,826 B	[ EDIT ] \| [ DEL ]
📄 ip6_tunnel.h	1,953 B	[ EDIT ] \| [ DEL ]
📄 ip_vs.h	13,631 B	[ EDIT ] \| [ DEL ]
📄 ipc.h	2,123 B	[ EDIT ] \| [ DEL ]
📄 ipmi.h	15,505 B	[ EDIT ] \| [ DEL ]
📄 ipmi_bmc.h	479 B	[ EDIT ] \| [ DEL ]
📄 ipmi_msgdefs.h	3,430 B	[ EDIT ] \| [ DEL ]
📄 ipmi_ssif_bmc.h	456 B	[ EDIT ] \| [ DEL ]
📄 ipsec.h	947 B	[ EDIT ] \| [ DEL ]
📄 ipv6.h	3,982 B	[ EDIT ] \| [ DEL ]
📄 ipv6_route.h	1,923 B	[ EDIT ] \| [ DEL ]
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📄 isdn.h	5,789 B	[ EDIT ] \| [ DEL ]
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📄 isdn_ppp.h	1,938 B	[ EDIT ] \| [ DEL ]
📄 isdnif.h	2,385 B	[ EDIT ] \| [ DEL ]
📄 iso_fs.h	6,485 B	[ EDIT ] \| [ DEL ]
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📄 ivtv.h	3,063 B	[ EDIT ] \| [ DEL ]
📄 ivtvfb.h	1,241 B	[ EDIT ] \| [ DEL ]
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📄 joystick.h	3,449 B	[ EDIT ] \| [ DEL ]
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📄 kernel-page-flags.h	915 B	[ EDIT ] \| [ DEL ]
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📄 kernelcapi.h	1,034 B	[ EDIT ] \| [ DEL ]
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📄 keyctl.h	3,514 B	[ EDIT ] \| [ DEL ]
📄 kfd_ioctl.h	28,814 B	[ EDIT ] \| [ DEL ]
📄 kfd_sysfs.h	4,350 B	[ EDIT ] \| [ DEL ]
📄 kvm.h	61,602 B	[ EDIT ] \| [ DEL ]
📄 kvm_para.h	1,016 B	[ EDIT ] \| [ DEL ]
📄 l2tp.h	5,606 B	[ EDIT ] \| [ DEL ]
📄 libc-compat.h	8,304 B	[ EDIT ] \| [ DEL ]
📄 lightnvm.h	5,168 B	[ EDIT ] \| [ DEL ]
📄 limits.h	947 B	[ EDIT ] \| [ DEL ]
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📄 mdio.h	17,283 B	[ EDIT ] \| [ DEL ]
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📄 mic_common.h	6,499 B	[ EDIT ] \| [ DEL ]
📄 mic_ioctl.h	2,310 B	[ EDIT ] \| [ DEL ]
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📄 minix_fs.h	2,122 B	[ EDIT ] \| [ DEL ]
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📄 mpls_iptunnel.h	776 B	[ EDIT ] \| [ DEL ]
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📄 mroute.h	5,442 B	[ EDIT ] \| [ DEL ]
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📄 nbd-netlink.h	2,423 B	[ EDIT ] \| [ DEL ]
📄 nbd.h	3,039 B	[ EDIT ] \| [ DEL ]
📄 ncsi.h	3,880 B	[ EDIT ] \| [ DEL ]
📄 ndctl.h	6,693 B	[ EDIT ] \| [ DEL ]
📄 neighbour.h	5,138 B	[ EDIT ] \| [ DEL ]
📄 net.h	2,100 B	[ EDIT ] \| [ DEL ]
📄 net_dropmon.h	2,922 B	[ EDIT ] \| [ DEL ]
📄 net_namespace.h	730 B	[ EDIT ] \| [ DEL ]
📄 net_tstamp.h	5,806 B	[ EDIT ] \| [ DEL ]
📄 netconf.h	629 B	[ EDIT ] \| [ DEL ]
📄 netdevice.h	2,268 B	[ EDIT ] \| [ DEL ]
📄 netfilter.h	1,888 B	[ EDIT ] \| [ DEL ]
📄 netfilter_arp.h	471 B	[ EDIT ] \| [ DEL ]
📄 netfilter_bridge.h	1,209 B	[ EDIT ] \| [ DEL ]
📄 netfilter_decnet.h	2,050 B	[ EDIT ] \| [ DEL ]
📄 netfilter_ipv4.h	2,229 B	[ EDIT ] \| [ DEL ]
📄 netfilter_ipv6.h	2,249 B	[ EDIT ] \| [ DEL ]
📄 netlink.h	11,562 B	[ EDIT ] \| [ DEL ]
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📄 netrom.h	807 B	[ EDIT ] \| [ DEL ]
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📄 nfs2.h	1,468 B	[ EDIT ] \| [ DEL ]
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📄 nfs4_mount.h	1,953 B	[ EDIT ] \| [ DEL ]
📄 nfs_fs.h	1,656 B	[ EDIT ] \| [ DEL ]
📄 nfs_idmap.h	2,258 B	[ EDIT ] \| [ DEL ]
📄 nfs_mount.h	2,142 B	[ EDIT ] \| [ DEL ]
📄 nfsacl.h	733 B	[ EDIT ] \| [ DEL ]
📄 nilfs2_api.h	7,565 B	[ EDIT ] \| [ DEL ]
📄 nilfs2_ondisk.h	18,001 B	[ EDIT ] \| [ DEL ]
📄 nitro_enclaves.h	13,167 B	[ EDIT ] \| [ DEL ]
📄 nl80211.h	335,264 B	[ EDIT ] \| [ DEL ]
📄 nsfs.h	639 B	[ EDIT ] \| [ DEL ]
📄 nubus.h	8,206 B	[ EDIT ] \| [ DEL ]
📄 nvme_ioctl.h	2,127 B	[ EDIT ] \| [ DEL ]
📄 nvram.h	547 B	[ EDIT ] \| [ DEL ]
📄 omap3isp.h	21,271 B	[ EDIT ] \| [ DEL ]
📄 omapfb.h	5,940 B	[ EDIT ] \| [ DEL ]
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📄 phantom.h	1,654 B	[ EDIT ] \| [ DEL ]
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📄 pkt_cls.h	18,511 B	[ EDIT ] \| [ DEL ]
📄 pkt_sched.h	30,296 B	[ EDIT ] \| [ DEL ]
📄 pktcdvd.h	2,702 B	[ EDIT ] \| [ DEL ]
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📄 qrtr.h	878 B	[ EDIT ] \| [ DEL ]
📄 quota.h	6,306 B	[ EDIT ] \| [ DEL ]
📄 radeonfb.h	360 B	[ EDIT ] \| [ DEL ]
📄 random.h	1,385 B	[ EDIT ] \| [ DEL ]
📄 raw.h	365 B	[ EDIT ] \| [ DEL ]
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📄 reboot.h	1,358 B	[ EDIT ] \| [ DEL ]
📄 reiserfs_fs.h	775 B	[ EDIT ] \| [ DEL ]
📄 reiserfs_xattr.h	533 B	[ EDIT ] \| [ DEL ]
📄 resource.h	2,362 B	[ EDIT ] \| [ DEL ]
📄 rfkill.h	6,623 B	[ EDIT ] \| [ DEL ]
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📄 rio_mport_cdev.h	9,330 B	[ EDIT ] \| [ DEL ]
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📄 suspend_ioctls.h	1,431 B	[ EDIT ] \| [ DEL ]
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📄 switchtec_ioctl.h	5,272 B	[ EDIT ] \| [ DEL ]
📄 sync_file.h	2,898 B	[ EDIT ] \| [ DEL ]
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📄 sysctl.h	25,912 B	[ EDIT ] \| [ DEL ]
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📄 tcp_metrics.h	1,549 B	[ EDIT ] \| [ DEL ]
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📄 thermal.h	3,324 B	[ EDIT ] \| [ DEL ]
📄 time.h	1,763 B	[ EDIT ] \| [ DEL ]
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📄 tipc_config.h	14,682 B	[ EDIT ] \| [ DEL ]
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📄 udf_fs_i.h	697 B	[ EDIT ] \| [ DEL ]
📄 udp.h	1,676 B	[ EDIT ] \| [ DEL ]
📄 uhid.h	4,655 B	[ EDIT ] \| [ DEL ]
📄 uinput.h	9,276 B	[ EDIT ] \| [ DEL ]
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📄 uleds.h	813 B	[ EDIT ] \| [ DEL ]
📄 ultrasound.h	4,562 B	[ EDIT ] \| [ DEL ]
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📄 unistd.h	220 B	[ EDIT ] \| [ DEL ]
📄 unix_diag.h	1,253 B	[ EDIT ] \| [ DEL ]
📄 usbdevice_fs.h	8,374 B	[ EDIT ] \| [ DEL ]
📄 usbip.h	655 B	[ EDIT ] \| [ DEL ]
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📄 userio.h	1,516 B	[ EDIT ] \| [ DEL ]
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📄 uuid.h	1,371 B	[ EDIT ] \| [ DEL ]
📄 uvcvideo.h	2,634 B	[ EDIT ] \| [ DEL ]
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📄 v4l2-dv-timings.h	31,562 B	[ EDIT ] \| [ DEL ]
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📄 xdp_diag.h	1,468 B	[ EDIT ] \| [ DEL ]
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📄 xilinx-v4l2-controls.h	2,976 B	[ EDIT ] \| [ DEL ]
📄 zorro.h	3,266 B	[ EDIT ] \| [ DEL ]
📄 zorro_ids.h	29,963 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: gfs2_ondisk.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * 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_FREEZE_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_inode_lvb {
	__be32 ri_magic;
	__be32 __pad;
	__be64 ri_generation_deleted;
};

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;
	union {
		__be32 __pad;
		__be32 rg_skip; /* Distance to the next rgrp in fs blocks */
	};
	__be64 rg_igeneration;
	/* The following 3 fields are duplicated from gfs2_rindex to reduce
	   reliance on the rindex */
	__be64 rg_data0;     /* First data location */
	__be32 rg_data;      /* Number of data blocks in rgrp */
	__be32 rg_bitbytes;  /* Number of bytes in data bitmaps */
	__be32 rg_crc;       /* crc32 of the structure with this field 0 */

__u8 rg_reserved[60]; /* 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 usecs */
			__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 attribute headers.
 *
 * The maximum 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 */
#define GFS2_LOG_HEAD_FLUSH_NORMAL	0x00000002 /* normal log flush */
#define GFS2_LOG_HEAD_FLUSH_SYNC	0x00000004 /* Sync log flush */
#define GFS2_LOG_HEAD_FLUSH_SHUTDOWN	0x00000008 /* Shutdown log flush */
#define GFS2_LOG_HEAD_FLUSH_FREEZE	0x00000010 /* Freeze flush */
#define GFS2_LOG_HEAD_RECOVERY		0x00000020 /* Journal recovery */
#define GFS2_LOG_HEAD_USERSPACE		0x80000000 /* Written by gfs2-utils */

/* Log flush callers */
#define GFS2_LFC_SHUTDOWN		0x00000100
#define GFS2_LFC_JDATA_WPAGES		0x00000200
#define GFS2_LFC_SET_FLAGS		0x00000400
#define GFS2_LFC_AIL_EMPTY_GL		0x00000800
#define GFS2_LFC_AIL_FLUSH		0x00001000
#define GFS2_LFC_RGRP_GO_SYNC		0x00002000
#define GFS2_LFC_INODE_GO_SYNC		0x00004000
#define GFS2_LFC_INODE_GO_INVAL		0x00008000
#define GFS2_LFC_FREEZE_GO_SYNC		0x00010000
#define GFS2_LFC_KILL_SB		0x00020000
#define GFS2_LFC_DO_SYNC		0x00040000
#define GFS2_LFC_INPLACE_RESERVE	0x00080000
#define GFS2_LFC_WRITE_INODE		0x00100000
#define GFS2_LFC_MAKE_FS_RO		0x00200000
#define GFS2_LFC_SYNC_FS		0x00400000
#define GFS2_LFC_EVICT_INODE		0x00800000
#define GFS2_LFC_TRANS_END		0x01000000
#define GFS2_LFC_LOGD_JFLUSH_REQD	0x02000000
#define GFS2_LFC_LOGD_AIL_FLUSH_REQD	0x04000000

#define LH_V1_SIZE (offsetofend(struct gfs2_log_header, lh_hash))

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;		/* crc up to here with this field 0 */

/* Version 2 additional fields start here */
	__be32 lh_crc;		/* crc32c from lh_nsec to end of block */
	__be32 lh_nsec;		/* Nanoseconds of timestamp */
	__be64 lh_sec;		/* Seconds of timestamp */
	__be64 lh_addr;		/* Block addr of this log header (absolute) */
	__be64 lh_jinode;	/* Journal inode number */
	__be64 lh_statfs_addr;	/* Local statfs inode number */
	__be64 lh_quota_addr;	/* Local quota change inode number */

/* Statfs local changes (i.e. diff from global statfs) */
	__be64 lh_local_total;
	__be64 lh_local_free;
	__be64 lh_local_dinodes;
};

/*
 * 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__ */