File Manager

X7ROOT File Manager

Current Path: /usr/include/linux

ðŸ“ ..
ðŸ“„ a.out.h(6.73 KB)
ðŸ“„ acct.h(3.65 KB)
ðŸ“„ adb.h(1.11 KB)
ðŸ“„ adfs_fs.h(936 B)
ðŸ“„ affs_hardblocks.h(1.51 KB)
ðŸ“„ agpgart.h(3.85 KB)
ðŸ“„ aio_abi.h(3.34 KB)
ðŸ“„ am437x-vpfe.h(3.59 KB)
ðŸ“ android
ðŸ“„ apm_bios.h(3.6 KB)
ðŸ“„ arcfb.h(213 B)
ðŸ“„ arm_sdei.h(2.69 KB)
ðŸ“„ aspeed-lpc-ctrl.h(1.74 KB)
ðŸ“„ atalk.h(1023 B)
ðŸ“„ atm.h(7.7 KB)
ðŸ“„ atm_eni.h(648 B)
ðŸ“„ atm_he.h(406 B)
ðŸ“„ atm_idt77105.h(955 B)
ðŸ“„ atm_nicstar.h(1.25 KB)
ðŸ“„ atm_tcp.h(1.58 KB)
ðŸ“„ atm_zatm.h(1.5 KB)
ðŸ“„ atmapi.h(952 B)
ðŸ“„ atmarp.h(1.27 KB)
ðŸ“„ atmbr2684.h(3.19 KB)
ðŸ“„ atmclip.h(576 B)
ðŸ“„ atmdev.h(7.5 KB)
ðŸ“„ atmioc.h(1.61 KB)
ðŸ“„ atmlec.h(2.33 KB)
ðŸ“„ atmmpc.h(4.13 KB)
ðŸ“„ atmppp.h(639 B)
ðŸ“„ atmsap.h(4.85 KB)
ðŸ“„ atmsvc.h(1.81 KB)
ðŸ“„ audit.h(19.92 KB)
ðŸ“„ auto_dev-ioctl.h(4.87 KB)
ðŸ“„ auto_fs.h(6.28 KB)
ðŸ“„ auto_fs4.h(451 B)
ðŸ“„ auxvec.h(1.56 KB)
ðŸ“„ ax25.h(2.76 KB)
ðŸ“„ b1lli.h(1.68 KB)
ðŸ“„ batadv_packet.h(20.01 KB)
ðŸ“„ batman_adv.h(11.7 KB)
ðŸ“„ baycom.h(883 B)
ðŸ“„ bcache.h(8.17 KB)
ðŸ“„ bcm933xx_hcs.h(419 B)
ðŸ“„ bfs_fs.h(1.85 KB)
ðŸ“„ binfmts.h(628 B)
ðŸ“„ blkpg.h(904 B)
ðŸ“„ blktrace_api.h(4.59 KB)
ðŸ“„ blkzoned.h(6.45 KB)
ðŸ“„ bpf.h(223.3 KB)
ðŸ“„ bpf_common.h(1.33 KB)
ðŸ“„ bpf_perf_event.h(529 B)
ðŸ“„ bpfilter.h(465 B)
ðŸ“„ bpqether.h(981 B)
ðŸ“„ bsg.h(2.44 KB)
ðŸ“„ bt-bmc.h(572 B)
ðŸ“„ btf.h(4.68 KB)
ðŸ“„ btrfs.h(28.24 KB)
ðŸ“„ btrfs_tree.h(24.69 KB)
ðŸ“ byteorder
ðŸ“ caif
ðŸ“ can
ðŸ“„ can.h(7.7 KB)
ðŸ“„ capability.h(13.2 KB)
ðŸ“„ capi.h(3.05 KB)
ðŸ“„ cciss_defs.h(3.2 KB)
ðŸ“„ cciss_ioctl.h(2.7 KB)
ðŸ“„ cdrom.h(28.18 KB)
ðŸ“„ cec-funcs.h(52.64 KB)
ðŸ“„ cec.h(36.81 KB)
ðŸ“„ cfm_bridge.h(1.42 KB)
ðŸ“„ cgroupstats.h(2.17 KB)
ðŸ“„ chio.h(5.22 KB)
ðŸ“ cifs
ðŸ“„ close_range.h(377 B)
ðŸ“„ cm4000_cs.h(1.76 KB)
ðŸ“„ cn_proc.h(3.38 KB)
ðŸ“„ coda.h(17.09 KB)
ðŸ“„ coda_psdev.h(783 B)
ðŸ“„ coff.h(12.18 KB)
ðŸ“„ connector.h(2.2 KB)
ðŸ“„ const.h(788 B)
ðŸ“„ coresight-stm.h(674 B)
ðŸ“„ cramfs_fs.h(3.47 KB)
ðŸ“„ cryptouser.h(3.31 KB)
ðŸ“„ cuda.h(905 B)
ðŸ“„ cyclades.h(16.71 KB)
ðŸ“„ cycx_cfm.h(2.92 KB)
ðŸ“„ dcbnl.h(24.65 KB)
ðŸ“„ dccp.h(6.29 KB)
ðŸ“„ devlink.h(21.05 KB)
ðŸ“„ dlm.h(2.49 KB)
ðŸ“„ dlm_device.h(2.48 KB)
ðŸ“„ dlm_netlink.h(1.13 KB)
ðŸ“„ dlm_plock.h(894 B)
ðŸ“„ dlmconstants.h(4.96 KB)
ðŸ“„ dm-ioctl.h(11.13 KB)
ðŸ“„ dm-log-userspace.h(14.83 KB)
ðŸ“„ dma-buf.h(5.12 KB)
ðŸ“„ dn.h(4.53 KB)
ðŸ“„ dqblk_xfs.h(9.03 KB)
ðŸ“ dvb
ðŸ“„ edd.h(5.47 KB)
ðŸ“„ efs_fs_sb.h(2.17 KB)
ðŸ“„ elf-em.h(2.14 KB)
ðŸ“„ elf-fdpic.h(1.1 KB)
ðŸ“„ elf.h(13.16 KB)
ðŸ“„ elfcore.h(2.92 KB)
ðŸ“„ errno.h(23 B)
ðŸ“„ errqueue.h(1.44 KB)
ðŸ“„ erspan.h(1.03 KB)
ðŸ“„ ethtool.h(81.89 KB)
ðŸ“„ ethtool_netlink.h(22.29 KB)
ðŸ“„ eventpoll.h(2.67 KB)
ðŸ“„ fadvise.h(842 B)
ðŸ“„ falloc.h(3.5 KB)
ðŸ“„ fanotify.h(5.22 KB)
ðŸ“„ fb.h(16.09 KB)
ðŸ“„ fcntl.h(4.08 KB)
ðŸ“„ fd.h(11.4 KB)
ðŸ“„ fdreg.h(5.29 KB)
ðŸ“„ fib_rules.h(1.99 KB)
ðŸ“„ fiemap.h(2.71 KB)
ðŸ“„ filter.h(2.16 KB)
ðŸ“„ firewire-cdev.h(42.86 KB)
ðŸ“„ firewire-constants.h(3.16 KB)
ðŸ“„ flat.h(2.1 KB)
ðŸ“„ fou.h(694 B)
ðŸ“„ fpga-dfl.h(8.52 KB)
ðŸ“„ fs.h(13.11 KB)
ðŸ“„ fsl_hypervisor.h(7.13 KB)
ðŸ“„ fsmap.h(4.29 KB)
ðŸ“„ fuse.h(22.92 KB)
ðŸ“„ futex.h(4.88 KB)
ðŸ“„ gameport.h(897 B)
ðŸ“„ gen_stats.h(1.49 KB)
ðŸ“„ genetlink.h(2.12 KB)
ðŸ“ genwqe
ðŸ“„ gfs2_ondisk.h(14.4 KB)
ðŸ“„ gigaset_dev.h(1.41 KB)
ðŸ“„ gpio.h(6.59 KB)
ðŸ“„ gsmmux.h(1.02 KB)
ðŸ“„ gtp.h(681 B)
ðŸ“„ hash_info.h(921 B)
ðŸ“ hdlc
ðŸ“„ hdlc.h(637 B)
ðŸ“„ hdlcdrv.h(2.84 KB)
ðŸ“„ hdreg.h(22.17 KB)
ðŸ“„ hid.h(1.86 KB)
ðŸ“„ hiddev.h(6.2 KB)
ðŸ“„ hidraw.h(1.95 KB)
ðŸ“„ hpet.h(743 B)
ðŸ“ hsi
ðŸ“„ hsr_netlink.h(1.06 KB)
ðŸ“„ hw_breakpoint.h(742 B)
ðŸ“„ hyperv.h(10.89 KB)
ðŸ“„ hysdn_if.h(1.35 KB)
ðŸ“„ i2c-dev.h(2.55 KB)
ðŸ“„ i2c.h(6.96 KB)
ðŸ“„ i2o-dev.h(11.28 KB)
ðŸ“„ i8k.h(1.49 KB)
ðŸ“„ icmp.h(2.91 KB)
ðŸ“„ icmpv6.h(3.94 KB)
ðŸ“„ idxd.h(8.22 KB)
ðŸ“„ if.h(10.65 KB)
ðŸ“„ if_addr.h(1.84 KB)
ðŸ“„ if_addrlabel.h(721 B)
ðŸ“„ if_alg.h(946 B)
ðŸ“„ if_arcnet.h(3.63 KB)
ðŸ“„ if_arp.h(6.42 KB)
ðŸ“„ if_bonding.h(5.17 KB)
ðŸ“„ if_bridge.h(19.06 KB)
ðŸ“„ if_cablemodem.h(986 B)
ðŸ“„ if_eql.h(1.32 KB)
ðŸ“„ if_ether.h(8.05 KB)
ðŸ“„ if_fc.h(1.7 KB)
ðŸ“„ if_fddi.h(3.66 KB)
ðŸ“„ if_frad.h(2.95 KB)
ðŸ“„ if_hippi.h(4.14 KB)
ðŸ“„ if_infiniband.h(1.22 KB)
ðŸ“„ if_link.h(30.28 KB)
ðŸ“„ if_ltalk.h(210 B)
ðŸ“„ if_macsec.h(5.7 KB)
ðŸ“„ if_packet.h(7.73 KB)
ðŸ“„ if_phonet.h(424 B)
ðŸ“„ if_plip.h(660 B)
ðŸ“„ if_ppp.h(29 B)
ðŸ“„ if_pppol2tp.h(3.21 KB)
ðŸ“„ if_pppox.h(4.76 KB)
ðŸ“„ if_slip.h(872 B)
ðŸ“„ if_team.h(2.54 KB)
ðŸ“„ if_tun.h(4 KB)
ðŸ“„ if_tunnel.h(4.41 KB)
ðŸ“„ if_vlan.h(1.79 KB)
ðŸ“„ if_x25.h(881 B)
ðŸ“„ if_xdp.h(2.94 KB)
ðŸ“„ ife.h(351 B)
ðŸ“„ igmp.h(2.99 KB)
ðŸ“ iio
ðŸ“„ ila.h(1.22 KB)
ðŸ“„ in.h(9.78 KB)
ðŸ“„ in6.h(7.26 KB)
ðŸ“„ in_route.h(936 B)
ðŸ“„ inet_diag.h(4.56 KB)
ðŸ“„ inotify.h(3.21 KB)
ðŸ“„ input-event-codes.h(27.94 KB)
ðŸ“„ input.h(15.61 KB)
ðŸ“„ io_uring.h(6.06 KB)
ðŸ“„ ioctl.h(163 B)
ðŸ“„ iommu.h(4.79 KB)
ðŸ“„ ip.h(4.62 KB)
ðŸ“„ ip6_tunnel.h(1.91 KB)
ðŸ“„ ip_vs.h(13.31 KB)
ðŸ“„ ipc.h(2.05 KB)
ðŸ“„ ipmi.h(15.08 KB)
ðŸ“„ ipmi_bmc.h(464 B)
ðŸ“„ ipmi_msgdefs.h(3.35 KB)
ðŸ“„ ipmi_ssif_bmc.h(441 B)
ðŸ“„ ipsec.h(947 B)
ðŸ“„ ipv6.h(3.87 KB)
ðŸ“„ ipv6_route.h(1.86 KB)
ðŸ“„ ipx.h(2.29 KB)
ðŸ“„ irqnr.h(104 B)
ðŸ“ isdn
ðŸ“„ isdn.h(5.64 KB)
ðŸ“„ isdn_divertif.h(1.17 KB)
ðŸ“„ isdn_ppp.h(1.88 KB)
ðŸ“„ isdnif.h(2.31 KB)
ðŸ“„ iso_fs.h(6.33 KB)
ðŸ“„ isst_if.h(5.26 KB)
ðŸ“„ ivtv.h(2.95 KB)
ðŸ“„ ivtvfb.h(1.18 KB)
ðŸ“„ jffs2.h(6.85 KB)
ðŸ“„ joystick.h(3.35 KB)
ðŸ“„ kcm.h(822 B)
ðŸ“„ kcmp.h(522 B)
ðŸ“„ kcov.h(1.07 KB)
ðŸ“„ kd.h(6.11 KB)
ðŸ“„ kdev_t.h(383 B)
ðŸ“„ kernel-page-flags.h(900 B)
ðŸ“„ kernel.h(438 B)
ðŸ“„ kernelcapi.h(1019 B)
ðŸ“„ kexec.h(1.79 KB)
ðŸ“„ keyboard.h(12.48 KB)
ðŸ“„ keyctl.h(3.42 KB)
ðŸ“„ kfd_ioctl.h(28.14 KB)
ðŸ“„ kfd_sysfs.h(4.25 KB)
ðŸ“„ kvm.h(60.12 KB)
ðŸ“„ kvm_para.h(1001 B)
ðŸ“„ l2tp.h(5.46 KB)
ðŸ“„ libc-compat.h(8.09 KB)
ðŸ“„ lightnvm.h(4.92 KB)
ðŸ“„ limits.h(937 B)
ðŸ“„ lirc.h(7.63 KB)
ðŸ“„ llc.h(3.09 KB)
ðŸ“„ loop.h(3.42 KB)
ðŸ“„ lp.h(4.09 KB)
ðŸ“„ lwtunnel.h(2.13 KB)
ðŸ“„ magic.h(3.45 KB)
ðŸ“„ major.h(4.6 KB)
ðŸ“„ map_to_7segment.h(7.08 KB)
ðŸ“„ matroxfb.h(1.43 KB)
ðŸ“„ max2175.h(1.01 KB)
ðŸ“„ mdio.h(16.87 KB)
ðŸ“„ media-bus-format.h(6.26 KB)
ðŸ“„ media.h(11.12 KB)
ðŸ“„ mei.h(3.39 KB)
ðŸ“„ membarrier.h(7.71 KB)
ðŸ“„ memfd.h(1.29 KB)
ðŸ“„ mempolicy.h(2.18 KB)
ðŸ“„ meye.h(2.47 KB)
ðŸ“„ mic_common.h(6.37 KB)
ðŸ“„ mic_ioctl.h(2.2 KB)
ðŸ“„ mii.h(9.27 KB)
ðŸ“„ minix_fs.h(2.07 KB)
ðŸ“„ mman.h(1.35 KB)
ðŸ“ mmc
ðŸ“„ mmtimer.h(2.07 KB)
ðŸ“„ module.h(255 B)
ðŸ“„ mount.h(4.44 KB)
ðŸ“„ mpls.h(2.25 KB)
ðŸ“„ mpls_iptunnel.h(761 B)
ðŸ“„ mptcp.h(5.48 KB)
ðŸ“„ mqueue.h(2.15 KB)
ðŸ“„ mroute.h(5.3 KB)
ðŸ“„ mroute6.h(4.47 KB)
ðŸ“„ mrp_bridge.h(1.67 KB)
ðŸ“„ msdos_fs.h(6.8 KB)
ðŸ“„ msg.h(3.29 KB)
ðŸ“„ mtio.h(7.98 KB)
ðŸ“„ n_r3964.h(2.35 KB)
ðŸ“„ nbd-netlink.h(2.35 KB)
ðŸ“„ nbd.h(2.95 KB)
ðŸ“„ ncsi.h(3.79 KB)
ðŸ“„ ndctl.h(6.71 KB)
ðŸ“„ neighbour.h(5.02 KB)
ðŸ“„ net.h(2.04 KB)
ðŸ“„ net_dropmon.h(2.85 KB)
ðŸ“„ net_namespace.h(715 B)
ðŸ“„ net_tstamp.h(5.67 KB)
ðŸ“„ netconf.h(614 B)
ðŸ“„ netdevice.h(2.2 KB)
ðŸ“ netfilter
ðŸ“„ netfilter.h(1.78 KB)
ðŸ“ netfilter_arp
ðŸ“„ netfilter_arp.h(445 B)
ðŸ“ netfilter_bridge
ðŸ“„ netfilter_bridge.h(1.14 KB)
ðŸ“„ netfilter_decnet.h(1.93 KB)
ðŸ“ netfilter_ipv4
ðŸ“„ netfilter_ipv4.h(2.12 KB)
ðŸ“ netfilter_ipv6
ðŸ“„ netfilter_ipv6.h(2.14 KB)
ðŸ“„ netlink.h(11.23 KB)
ðŸ“„ netlink_diag.h(1.49 KB)
ðŸ“„ netrom.h(807 B)
ðŸ“„ nexthop.h(1.5 KB)
ðŸ“„ nfc.h(10.95 KB)
ðŸ“„ nfs.h(4.39 KB)
ðŸ“„ nfs2.h(1.43 KB)
ðŸ“„ nfs3.h(2.4 KB)
ðŸ“„ nfs4.h(6.44 KB)
ðŸ“„ nfs4_mount.h(1.89 KB)
ðŸ“„ nfs_fs.h(1.6 KB)
ðŸ“„ nfs_idmap.h(2.19 KB)
ðŸ“„ nfs_mount.h(2.09 KB)
ðŸ“„ nfsacl.h(718 B)
ðŸ“ nfsd
ðŸ“„ nilfs2_api.h(7.41 KB)
ðŸ“„ nilfs2_ondisk.h(17.61 KB)
ðŸ“„ nitro_enclaves.h(12.84 KB)
ðŸ“„ nl80211.h(327.41 KB)
ðŸ“„ nsfs.h(639 B)
ðŸ“„ nubus.h(8 KB)
ðŸ“„ nvme_ioctl.h(2.06 KB)
ðŸ“„ nvram.h(532 B)
ðŸ“„ omap3isp.h(20.36 KB)
ðŸ“„ omapfb.h(5.78 KB)
ðŸ“„ oom.h(511 B)
ðŸ“„ openat2.h(1.26 KB)
ðŸ“„ openvswitch.h(39.24 KB)
ðŸ“„ packet_diag.h(1.63 KB)
ðŸ“„ param.h(141 B)
ðŸ“„ parport.h(3.56 KB)
ðŸ“„ patchkey.h(892 B)
ðŸ“„ pci.h(1.35 KB)
ðŸ“„ pci_regs.h(56.47 KB)
ðŸ“„ pcitest.h(711 B)
ðŸ“„ perf_event.h(39.63 KB)
ðŸ“„ personality.h(2.05 KB)
ðŸ“„ pfkeyv2.h(10.32 KB)
ðŸ“„ pfrut.h(7.8 KB)
ðŸ“„ pg.h(2.34 KB)
ðŸ“„ phantom.h(1.62 KB)
ðŸ“„ phonet.h(4.57 KB)
ðŸ“„ pkt_cls.h(18.08 KB)
ðŸ“„ pkt_sched.h(29.59 KB)
ðŸ“„ pktcdvd.h(2.62 KB)
ðŸ“„ pmu.h(5.19 KB)
ðŸ“„ poll.h(22 B)
ðŸ“„ posix_acl.h(1.22 KB)
ðŸ“„ posix_acl_xattr.h(1.09 KB)
ðŸ“„ posix_types.h(1.07 KB)
ðŸ“„ ppdev.h(3.14 KB)
ðŸ“„ ppp-comp.h(2.47 KB)
ðŸ“„ ppp-ioctl.h(5.35 KB)
ðŸ“„ ppp_defs.h(4.99 KB)
ðŸ“„ pps.h(4.62 KB)
ðŸ“„ pr.h(1.05 KB)
ðŸ“„ prctl.h(7.83 KB)
ðŸ“„ psample.h(2.22 KB)
ðŸ“„ psci.h(4.23 KB)
ðŸ“„ psp-sev.h(4.48 KB)
ðŸ“„ ptp_clock.h(7.28 KB)
ðŸ“„ ptrace.h(3.59 KB)
ðŸ“„ qemu_fw_cfg.h(2.41 KB)
ðŸ“„ qnx4_fs.h(2.27 KB)
ðŸ“„ qnxtypes.h(624 B)
ðŸ“„ qrtr.h(893 B)
ðŸ“„ quota.h(6.14 KB)
ðŸ“„ radeonfb.h(360 B)
ðŸ“ raid
ðŸ“„ random.h(1.34 KB)
ðŸ“„ raw.h(365 B)
ðŸ“„ rds.h(9.08 KB)
ðŸ“„ reboot.h(1.31 KB)
ðŸ“„ reiserfs_fs.h(775 B)
ðŸ“„ reiserfs_xattr.h(533 B)
ðŸ“„ resource.h(2.29 KB)
ðŸ“„ rfkill.h(6.45 KB)
ðŸ“„ rio_cm_cdev.h(3.17 KB)
ðŸ“„ rio_mport_cdev.h(9.11 KB)
ðŸ“„ romfs_fs.h(1.21 KB)
ðŸ“„ rose.h(2.18 KB)
ðŸ“„ route.h(2.28 KB)
ðŸ“„ rpmsg.h(544 B)
ðŸ“„ rseq.h(4.79 KB)
ðŸ“„ rtc.h(3.92 KB)
ðŸ“„ rtnetlink.h(19.73 KB)
ðŸ“„ rxrpc.h(4.96 KB)
ðŸ“„ scc.h(4.49 KB)
ðŸ“ sched
ðŸ“„ sched.h(2.73 KB)
ðŸ“„ scif_ioctl.h(6.23 KB)
ðŸ“„ screen_info.h(2.42 KB)
ðŸ“„ sctp.h(35.15 KB)
ðŸ“„ sdla.h(2.77 KB)
ðŸ“„ seccomp.h(2.2 KB)
ðŸ“„ securebits.h(2.64 KB)
ðŸ“„ sed-opal.h(3.2 KB)
ðŸ“„ seg6.h(1.14 KB)
ðŸ“„ seg6_genl.h(589 B)
ðŸ“„ seg6_hmac.h(423 B)
ðŸ“„ seg6_iptunnel.h(927 B)
ðŸ“„ seg6_local.h(2.01 KB)
ðŸ“„ selinux_netlink.h(1.17 KB)
ðŸ“„ sem.h(2.97 KB)
ðŸ“„ serial.h(3.78 KB)
ðŸ“„ serial_core.h(6.1 KB)
ðŸ“„ serial_reg.h(15.13 KB)
ðŸ“„ serio.h(1.99 KB)
ðŸ“„ sev-guest.h(2.25 KB)
ðŸ“„ shm.h(3.7 KB)
ðŸ“„ signal.h(388 B)
ðŸ“„ signalfd.h(1.2 KB)
ðŸ“„ smc.h(8.31 KB)
ðŸ“„ smc_diag.h(2.66 KB)
ðŸ“„ smiapp.h(1.03 KB)
ðŸ“„ snmp.h(13.34 KB)
ðŸ“„ sock_diag.h(1.27 KB)
ðŸ“„ socket.h(901 B)
ðŸ“„ sockios.h(5.96 KB)
ðŸ“„ sonet.h(2.24 KB)
ðŸ“„ sonypi.h(5.18 KB)
ðŸ“„ sound.h(1.21 KB)
ðŸ“„ soundcard.h(44.96 KB)
ðŸ“ spi
ðŸ“„ stat.h(6.2 KB)
ðŸ“„ stddef.h(1.5 KB)
ðŸ“„ stm.h(1.25 KB)
ðŸ“„ string.h(238 B)
ðŸ“ sunrpc
ðŸ“„ suspend_ioctls.h(1.4 KB)
ðŸ“„ swab.h(6.76 KB)
ðŸ“„ switchtec_ioctl.h(5.14 KB)
ðŸ“„ sync_file.h(2.82 KB)
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Editing: btrfs.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * Copyright (C) 2007 Oracle.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License v2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 021110-1307, USA.
 */

#ifndef _LINUX_BTRFS_H
#define _LINUX_BTRFS_H
#include <linux/types.h>
#include <linux/ioctl.h>

#define BTRFS_IOCTL_MAGIC 0x94
#define BTRFS_VOL_NAME_MAX 255
#define BTRFS_LABEL_SIZE 256

/* this should be 4k */
#define BTRFS_PATH_NAME_MAX 4087
struct btrfs_ioctl_vol_args {
	__s64 fd;
	char name[BTRFS_PATH_NAME_MAX + 1];
};

#define BTRFS_DEVICE_PATH_NAME_MAX	1024
#define BTRFS_SUBVOL_NAME_MAX 		4039

#define BTRFS_SUBVOL_CREATE_ASYNC	(1ULL << 0)
#define BTRFS_SUBVOL_RDONLY		(1ULL << 1)
#define BTRFS_SUBVOL_QGROUP_INHERIT	(1ULL << 2)

#define BTRFS_DEVICE_SPEC_BY_ID		(1ULL << 3)

#define BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED		\
			(BTRFS_SUBVOL_CREATE_ASYNC |	\
			BTRFS_SUBVOL_RDONLY |		\
			BTRFS_SUBVOL_QGROUP_INHERIT |	\
			BTRFS_DEVICE_SPEC_BY_ID)

#define BTRFS_FSID_SIZE 16
#define BTRFS_UUID_SIZE 16
#define BTRFS_UUID_UNPARSED_SIZE	37

/*
 * flags definition for qgroup limits
 *
 * Used by:
 * struct btrfs_qgroup_limit.flags
 * struct btrfs_qgroup_limit_item.flags
 */
#define BTRFS_QGROUP_LIMIT_MAX_RFER	(1ULL << 0)
#define BTRFS_QGROUP_LIMIT_MAX_EXCL	(1ULL << 1)
#define BTRFS_QGROUP_LIMIT_RSV_RFER	(1ULL << 2)
#define BTRFS_QGROUP_LIMIT_RSV_EXCL	(1ULL << 3)
#define BTRFS_QGROUP_LIMIT_RFER_CMPR	(1ULL << 4)
#define BTRFS_QGROUP_LIMIT_EXCL_CMPR	(1ULL << 5)

struct btrfs_qgroup_limit {
	__u64	flags;
	__u64	max_rfer;
	__u64	max_excl;
	__u64	rsv_rfer;
	__u64	rsv_excl;
};

/*
 * flags definition for qgroup inheritance
 *
 * Used by:
 * struct btrfs_qgroup_inherit.flags
 */
#define BTRFS_QGROUP_INHERIT_SET_LIMITS	(1ULL << 0)

struct btrfs_qgroup_inherit {
	__u64	flags;
	__u64	num_qgroups;
	__u64	num_ref_copies;
	__u64	num_excl_copies;
	struct btrfs_qgroup_limit lim;
	__u64	qgroups[0];
};

struct btrfs_ioctl_qgroup_limit_args {
	__u64	qgroupid;
	struct btrfs_qgroup_limit lim;
};

/*
 * flags for subvolumes
 *
 * Used by:
 * struct btrfs_ioctl_vol_args_v2.flags
 *
 * BTRFS_SUBVOL_RDONLY is also provided/consumed by the following ioctls:
 * - BTRFS_IOC_SUBVOL_GETFLAGS
 * - BTRFS_IOC_SUBVOL_SETFLAGS
 */

struct btrfs_ioctl_vol_args_v2 {
	__s64 fd;
	__u64 transid;
	__u64 flags;
	union {
		struct {
			__u64 size;
			struct btrfs_qgroup_inherit *qgroup_inherit;
		};
		__u64 unused[4];
	};
	union {
		char name[BTRFS_SUBVOL_NAME_MAX + 1];
		__u64 devid;
	};
};

/*
 * structure to report errors and progress to userspace, either as a
 * result of a finished scrub, a canceled scrub or a progress inquiry
 */
struct btrfs_scrub_progress {
	__u64 data_extents_scrubbed;	/* # of data extents scrubbed */
	__u64 tree_extents_scrubbed;	/* # of tree extents scrubbed */
	__u64 data_bytes_scrubbed;	/* # of data bytes scrubbed */
	__u64 tree_bytes_scrubbed;	/* # of tree bytes scrubbed */
	__u64 read_errors;		/* # of read errors encountered (EIO) */
	__u64 csum_errors;		/* # of failed csum checks */
	__u64 verify_errors;		/* # of occurences, where the metadata
					 * of a tree block did not match the
					 * expected values, like generation or
					 * logical */
	__u64 no_csum;			/* # of 4k data block for which no csum
					 * is present, probably the result of
					 * data written with nodatasum */
	__u64 csum_discards;		/* # of csum for which no data was found
					 * in the extent tree. */
	__u64 super_errors;		/* # of bad super blocks encountered */
	__u64 malloc_errors;		/* # of internal kmalloc errors. These
					 * will likely cause an incomplete
					 * scrub */
	__u64 uncorrectable_errors;	/* # of errors where either no intact
					 * copy was found or the writeback
					 * failed */
	__u64 corrected_errors;		/* # of errors corrected */
	__u64 last_physical;		/* last physical address scrubbed. In
					 * case a scrub was aborted, this can
					 * be used to restart the scrub */
	__u64 unverified_errors;	/* # of occurences where a read for a
					 * full (64k) bio failed, but the re-
					 * check succeeded for each 4k piece.
					 * Intermittent error. */
};

#define BTRFS_SCRUB_READONLY	1
struct btrfs_ioctl_scrub_args {
	__u64 devid;				/* in */
	__u64 start;				/* in */
	__u64 end;				/* in */
	__u64 flags;				/* in */
	struct btrfs_scrub_progress progress;	/* out */
	/* pad to 1k */
	__u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
};

#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS	0
#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID	1
struct btrfs_ioctl_dev_replace_start_params {
	__u64 srcdevid;	/* in, if 0, use srcdev_name instead */
	__u64 cont_reading_from_srcdev_mode;	/* in, see #define
						 * above */
	__u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];	/* in */
	__u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];	/* in */
};

#define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED	0
#define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED		1
#define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED		2
#define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED		3
#define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED		4
struct btrfs_ioctl_dev_replace_status_params {
	__u64 replace_state;	/* out, see #define above */
	__u64 progress_1000;	/* out, 0 <= x <= 1000 */
	__u64 time_started;	/* out, seconds since 1-Jan-1970 */
	__u64 time_stopped;	/* out, seconds since 1-Jan-1970 */
	__u64 num_write_errors;	/* out */
	__u64 num_uncorrectable_read_errors;	/* out */
};

#define BTRFS_IOCTL_DEV_REPLACE_CMD_START			0
#define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS			1
#define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL			2
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR			0
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED		1
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED		2
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS		3
struct btrfs_ioctl_dev_replace_args {
	__u64 cmd;	/* in */
	__u64 result;	/* out */

union {
		struct btrfs_ioctl_dev_replace_start_params start;
		struct btrfs_ioctl_dev_replace_status_params status;
	};	/* in/out */

__u64 spare[64];
};

struct btrfs_ioctl_dev_info_args {
	__u64 devid;				/* in/out */
	__u8 uuid[BTRFS_UUID_SIZE];		/* in/out */
	__u64 bytes_used;			/* out */
	__u64 total_bytes;			/* out */
	__u64 unused[379];			/* pad to 4k */
	__u8 path[BTRFS_DEVICE_PATH_NAME_MAX];	/* out */
};

struct btrfs_ioctl_fs_info_args {
	__u64 max_id;				/* out */
	__u64 num_devices;			/* out */
	__u8 fsid[BTRFS_FSID_SIZE];		/* out */
	__u32 nodesize;				/* out */
	__u32 sectorsize;			/* out */
	__u32 clone_alignment;			/* out */
	__u32 reserved32;
	__u64 reserved[122];			/* pad to 1k */
};

/*
 * feature flags
 *
 * Used by:
 * struct btrfs_ioctl_feature_flags
 */
#define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE		(1ULL << 0)
/*
 * Older kernels (< 4.9) on big-endian systems produced broken free space tree
 * bitmaps, and btrfs-progs also used to corrupt the free space tree (versions
 * < 4.7.3).  If this bit is clear, then the free space tree cannot be trusted.
 * btrfs-progs can also intentionally clear this bit to ask the kernel to
 * rebuild the free space tree, however this might not work on older kernels
 * that do not know about this bit. If not sure, clear the cache manually on
 * first mount when booting older kernel versions.
 */
#define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID	(1ULL << 1)

#define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF	(1ULL << 0)
#define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL	(1ULL << 1)
#define BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS	(1ULL << 2)
#define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO	(1ULL << 3)
#define BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD	(1ULL << 4)

/*
 * older kernels tried to do bigger metadata blocks, but the
 * code was pretty buggy.  Lets not let them try anymore.
 */
#define BTRFS_FEATURE_INCOMPAT_BIG_METADATA	(1ULL << 5)

#define BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF	(1ULL << 6)
#define BTRFS_FEATURE_INCOMPAT_RAID56		(1ULL << 7)
#define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA	(1ULL << 8)
#define BTRFS_FEATURE_INCOMPAT_NO_HOLES		(1ULL << 9)

struct btrfs_ioctl_feature_flags {
	__u64 compat_flags;
	__u64 compat_ro_flags;
	__u64 incompat_flags;
};

/* balance control ioctl modes */
#define BTRFS_BALANCE_CTL_PAUSE		1
#define BTRFS_BALANCE_CTL_CANCEL	2

/*
 * this is packed, because it should be exactly the same as its disk
 * byte order counterpart (struct btrfs_disk_balance_args)
 */
struct btrfs_balance_args {
	__u64 profiles;
	union {
		__u64 usage;
		struct {
			__u32 usage_min;
			__u32 usage_max;
		};
	};
	__u64 devid;
	__u64 pstart;
	__u64 pend;
	__u64 vstart;
	__u64 vend;

__u64 target;

__u64 flags;

/*
	 * BTRFS_BALANCE_ARGS_LIMIT with value 'limit'
	 * BTRFS_BALANCE_ARGS_LIMIT_RANGE - the extend version can use minimum
	 * and maximum
	 */
	union {
		__u64 limit;		/* limit number of processed chunks */
		struct {
			__u32 limit_min;
			__u32 limit_max;
		};
	};

/*
	 * Process chunks that cross stripes_min..stripes_max devices,
	 * BTRFS_BALANCE_ARGS_STRIPES_RANGE
	 */
	__u32 stripes_min;
	__u32 stripes_max;

__u64 unused[6];
} __attribute__ ((__packed__));

/* report balance progress to userspace */
struct btrfs_balance_progress {
	__u64 expected;		/* estimated # of chunks that will be
				 * relocated to fulfill the request */
	__u64 considered;	/* # of chunks we have considered so far */
	__u64 completed;	/* # of chunks relocated so far */
};

/*
 * flags definition for balance
 *
 * Restriper's general type filter
 *
 * Used by:
 * btrfs_ioctl_balance_args.flags
 * btrfs_balance_control.flags (internal)
 */
#define BTRFS_BALANCE_DATA		(1ULL << 0)
#define BTRFS_BALANCE_SYSTEM		(1ULL << 1)
#define BTRFS_BALANCE_METADATA		(1ULL << 2)

#define BTRFS_BALANCE_TYPE_MASK		(BTRFS_BALANCE_DATA |	    \
					 BTRFS_BALANCE_SYSTEM |	    \
					 BTRFS_BALANCE_METADATA)

#define BTRFS_BALANCE_FORCE		(1ULL << 3)
#define BTRFS_BALANCE_RESUME		(1ULL << 4)

/*
 * flags definitions for per-type balance args
 *
 * Balance filters
 *
 * Used by:
 * struct btrfs_balance_args
 */
#define BTRFS_BALANCE_ARGS_PROFILES	(1ULL << 0)
#define BTRFS_BALANCE_ARGS_USAGE	(1ULL << 1)
#define BTRFS_BALANCE_ARGS_DEVID	(1ULL << 2)
#define BTRFS_BALANCE_ARGS_DRANGE	(1ULL << 3)
#define BTRFS_BALANCE_ARGS_VRANGE	(1ULL << 4)
#define BTRFS_BALANCE_ARGS_LIMIT	(1ULL << 5)
#define BTRFS_BALANCE_ARGS_LIMIT_RANGE	(1ULL << 6)
#define BTRFS_BALANCE_ARGS_STRIPES_RANGE (1ULL << 7)
#define BTRFS_BALANCE_ARGS_USAGE_RANGE	(1ULL << 10)

/*
 * Profile changing flags.  When SOFT is set we won't relocate chunk if
 * it already has the target profile (even though it may be
 * half-filled).
 */
#define BTRFS_BALANCE_ARGS_CONVERT	(1ULL << 8)
#define BTRFS_BALANCE_ARGS_SOFT		(1ULL << 9)

/*
 * flags definition for balance state
 *
 * Used by:
 * struct btrfs_ioctl_balance_args.state
 */
#define BTRFS_BALANCE_STATE_RUNNING	(1ULL << 0)
#define BTRFS_BALANCE_STATE_PAUSE_REQ	(1ULL << 1)
#define BTRFS_BALANCE_STATE_CANCEL_REQ	(1ULL << 2)

struct btrfs_ioctl_balance_args {
	__u64 flags;				/* in/out */
	__u64 state;				/* out */

struct btrfs_balance_args data;		/* in/out */
	struct btrfs_balance_args meta;		/* in/out */
	struct btrfs_balance_args sys;		/* in/out */

struct btrfs_balance_progress stat;	/* out */

__u64 unused[72];			/* pad to 1k */
};

#define BTRFS_INO_LOOKUP_PATH_MAX 4080
struct btrfs_ioctl_ino_lookup_args {
	__u64 treeid;
	__u64 objectid;
	char name[BTRFS_INO_LOOKUP_PATH_MAX];
};

#define BTRFS_INO_LOOKUP_USER_PATH_MAX (4080 - BTRFS_VOL_NAME_MAX - 1)
struct btrfs_ioctl_ino_lookup_user_args {
	/* in, inode number containing the subvolume of 'subvolid' */
	__u64 dirid;
	/* in */
	__u64 treeid;
	/* out, name of the subvolume of 'treeid' */
	char name[BTRFS_VOL_NAME_MAX + 1];
	/*
	 * out, constructed path from the directory with which the ioctl is
	 * called to dirid
	 */
	char path[BTRFS_INO_LOOKUP_USER_PATH_MAX];
};

/* Search criteria for the btrfs SEARCH ioctl family. */
struct btrfs_ioctl_search_key {
	/*
	 * The tree we're searching in. 1 is the tree of tree roots, 2 is the
	 * extent tree, etc...
	 *
	 * A special tree_id value of 0 will cause a search in the subvolume
	 * tree that the inode which is passed to the ioctl is part of.
	 */
	__u64 tree_id;		/* in */

/*
	 * When doing a tree search, we're actually taking a slice from a
	 * linear search space of 136-bit keys.
	 *
	 * A full 136-bit tree key is composed as:
	 *   (objectid << 72) + (type << 64) + offset
	 *
	 * The individual min and max values for objectid, type and offset
	 * define the min_key and max_key values for the search range. All
	 * metadata items with a key in the interval [min_key, max_key] will be
	 * returned.
	 *
	 * Additionally, we can filter the items returned on transaction id of
	 * the metadata block they're stored in by specifying a transid range.
	 * Be aware that this transaction id only denotes when the metadata
	 * page that currently contains the item got written the last time as
	 * result of a COW operation.  The number does not have any meaning
	 * related to the transaction in which an individual item that is being
	 * returned was created or changed.
	 */
	__u64 min_objectid;	/* in */
	__u64 max_objectid;	/* in */
	__u64 min_offset;	/* in */
	__u64 max_offset;	/* in */
	__u64 min_transid;	/* in */
	__u64 max_transid;	/* in */
	__u32 min_type;		/* in */
	__u32 max_type;		/* in */

/*
	 * input: The maximum amount of results desired.
	 * output: The actual amount of items returned, restricted by any of:
	 *  - reaching the upper bound of the search range
	 *  - reaching the input nr_items amount of items
	 *  - completely filling the supplied memory buffer
	 */
	__u32 nr_items;		/* in/out */

/* align to 64 bits */
	__u32 unused;

/* some extra for later */
	__u64 unused1;
	__u64 unused2;
	__u64 unused3;
	__u64 unused4;
};

struct btrfs_ioctl_search_header {
	__u64 transid;
	__u64 objectid;
	__u64 offset;
	__u32 type;
	__u32 len;
};

#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
/*
 * the buf is an array of search headers where
 * each header is followed by the actual item
 * the type field is expanded to 32 bits for alignment
 */
struct btrfs_ioctl_search_args {
	struct btrfs_ioctl_search_key key;
	char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
};

struct btrfs_ioctl_search_args_v2 {
	struct btrfs_ioctl_search_key key; /* in/out - search parameters */
	__u64 buf_size;		   /* in - size of buffer
					    * out - on EOVERFLOW: needed size
					    *       to store item */
	__u64 buf[0];                       /* out - found items */
};

struct btrfs_ioctl_clone_range_args {
  __s64 src_fd;
  __u64 src_offset, src_length;
  __u64 dest_offset;
};

/*
 * flags definition for the defrag range ioctl
 *
 * Used by:
 * struct btrfs_ioctl_defrag_range_args.flags
 */
#define BTRFS_DEFRAG_RANGE_COMPRESS 1
#define BTRFS_DEFRAG_RANGE_START_IO 2
struct btrfs_ioctl_defrag_range_args {
	/* start of the defrag operation */
	__u64 start;

/* number of bytes to defrag, use (u64)-1 to say all */
	__u64 len;

/*
	 * flags for the operation, which can include turning
	 * on compression for this one defrag
	 */
	__u64 flags;

/*
	 * any extent bigger than this will be considered
	 * already defragged.  Use 0 to take the kernel default
	 * Use 1 to say every single extent must be rewritten
	 */
	__u32 extent_thresh;

/*
	 * which compression method to use if turning on compression
	 * for this defrag operation.  If unspecified, zlib will
	 * be used
	 */
	__u32 compress_type;

/* spare for later */
	__u32 unused[4];
};

#define BTRFS_SAME_DATA_DIFFERS	1
/* For extent-same ioctl */
struct btrfs_ioctl_same_extent_info {
	__s64 fd;		/* in - destination file */
	__u64 logical_offset;	/* in - start of extent in destination */
	__u64 bytes_deduped;	/* out - total # of bytes we were able
				 * to dedupe from this file */
	/* status of this dedupe operation:
	 * 0 if dedup succeeds
	 * < 0 for error
	 * == BTRFS_SAME_DATA_DIFFERS if data differs
	 */
	__s32 status;		/* out - see above description */
	__u32 reserved;
};

struct btrfs_ioctl_same_args {
	__u64 logical_offset;	/* in - start of extent in source */
	__u64 length;		/* in - length of extent */
	__u16 dest_count;	/* in - total elements in info array */
	__u16 reserved1;
	__u32 reserved2;
	struct btrfs_ioctl_same_extent_info info[0];
};

struct btrfs_ioctl_space_info {
	__u64 flags;
	__u64 total_bytes;
	__u64 used_bytes;
};

struct btrfs_ioctl_space_args {
	__u64 space_slots;
	__u64 total_spaces;
	struct btrfs_ioctl_space_info spaces[0];
};

struct btrfs_data_container {
	__u32	bytes_left;	/* out -- bytes not needed to deliver output */
	__u32	bytes_missing;	/* out -- additional bytes needed for result */
	__u32	elem_cnt;	/* out */
	__u32	elem_missed;	/* out */
	__u64	val[0];		/* out */
};

struct btrfs_ioctl_ino_path_args {
	__u64				inum;		/* in */
	__u64				size;		/* in */
	__u64				reserved[4];
	/* struct btrfs_data_container	*fspath;	   out */
	__u64				fspath;		/* out */
};

struct btrfs_ioctl_logical_ino_args {
	__u64				logical;	/* in */
	__u64				size;		/* in */
	__u64				reserved[3];	/* must be 0 for now */
	__u64				flags;		/* in, v2 only */
	/* struct btrfs_data_container	*inodes;	out   */
	__u64				inodes;
};
/* Return every ref to the extent, not just those containing logical block.
 * Requires logical == extent bytenr. */
#define BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET	(1ULL << 0)

enum btrfs_dev_stat_values {
	/* disk I/O failure stats */
	BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
	BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
	BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */

/* stats for indirect indications for I/O failures */
	BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
					 * contents is illegal: this is an
					 * indication that the block was damaged
					 * during read or write, or written to
					 * wrong location or read from wrong
					 * location */
	BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
					 * been written */

BTRFS_DEV_STAT_VALUES_MAX
};

/* Reset statistics after reading; needs SYS_ADMIN capability */
#define	BTRFS_DEV_STATS_RESET		(1ULL << 0)

struct btrfs_ioctl_get_dev_stats {
	__u64 devid;				/* in */
	__u64 nr_items;				/* in/out */
	__u64 flags;				/* in/out */

/* out values: */
	__u64 values[BTRFS_DEV_STAT_VALUES_MAX];

__u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
};

#define BTRFS_QUOTA_CTL_ENABLE	1
#define BTRFS_QUOTA_CTL_DISABLE	2
#define BTRFS_QUOTA_CTL_RESCAN__NOTUSED	3
struct btrfs_ioctl_quota_ctl_args {
	__u64 cmd;
	__u64 status;
};

struct btrfs_ioctl_quota_rescan_args {
	__u64	flags;
	__u64   progress;
	__u64   reserved[6];
};

struct btrfs_ioctl_qgroup_assign_args {
	__u64 assign;
	__u64 src;
	__u64 dst;
};

struct btrfs_ioctl_qgroup_create_args {
	__u64 create;
	__u64 qgroupid;
};
struct btrfs_ioctl_timespec {
	__u64 sec;
	__u32 nsec;
};

struct btrfs_ioctl_received_subvol_args {
	char	uuid[BTRFS_UUID_SIZE];	/* in */
	__u64	stransid;		/* in */
	__u64	rtransid;		/* out */
	struct btrfs_ioctl_timespec stime; /* in */
	struct btrfs_ioctl_timespec rtime; /* out */
	__u64	flags;			/* in */
	__u64	reserved[16];		/* in */
};

/*
 * Caller doesn't want file data in the send stream, even if the
 * search of clone sources doesn't find an extent. UPDATE_EXTENT
 * commands will be sent instead of WRITE commands.
 */
#define BTRFS_SEND_FLAG_NO_FILE_DATA		0x1

/*
 * Do not add the leading stream header. Used when multiple snapshots
 * are sent back to back.
 */
#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER	0x2

/*
 * Omit the command at the end of the stream that indicated the end
 * of the stream. This option is used when multiple snapshots are
 * sent back to back.
 */
#define BTRFS_SEND_FLAG_OMIT_END_CMD		0x4

#define BTRFS_SEND_FLAG_MASK \
	(BTRFS_SEND_FLAG_NO_FILE_DATA | \
	 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
	 BTRFS_SEND_FLAG_OMIT_END_CMD)

struct btrfs_ioctl_send_args {
	__s64 send_fd;			/* in */
	__u64 clone_sources_count;	/* in */
	__u64 *clone_sources;	/* in */
	__u64 parent_root;		/* in */
	__u64 flags;			/* in */
	__u64 reserved[4];		/* in */
};

/*
 * Information about a fs tree root.
 *
 * All items are filled by the ioctl
 */
struct btrfs_ioctl_get_subvol_info_args {
	/* Id of this subvolume */
	__u64 treeid;

/* Name of this subvolume, used to get the real name at mount point */
	char name[BTRFS_VOL_NAME_MAX + 1];

/*
	 * Id of the subvolume which contains this subvolume.
	 * Zero for top-level subvolume or a deleted subvolume.
	 */
	__u64 parent_id;

/*
	 * Inode number of the directory which contains this subvolume.
	 * Zero for top-level subvolume or a deleted subvolume
	 */
	__u64 dirid;

/* Latest transaction id of this subvolume */
	__u64 generation;

/* Flags of this subvolume */
	__u64 flags;

/* UUID of this subvolume */
	__u8 uuid[BTRFS_UUID_SIZE];

/*
	 * UUID of the subvolume of which this subvolume is a snapshot.
	 * All zero for a non-snapshot subvolume.
	 */
	__u8 parent_uuid[BTRFS_UUID_SIZE];

/*
	 * UUID of the subvolume from which this subvolume was received.
	 * All zero for non-received subvolume.
	 */
	__u8 received_uuid[BTRFS_UUID_SIZE];

/* Transaction id indicating when change/create/send/receive happened */
	__u64 ctransid;
	__u64 otransid;
	__u64 stransid;
	__u64 rtransid;
	/* Time corresponding to c/o/s/rtransid */
	struct btrfs_ioctl_timespec ctime;
	struct btrfs_ioctl_timespec otime;
	struct btrfs_ioctl_timespec stime;
	struct btrfs_ioctl_timespec rtime;

/* Must be zero */
	__u64 reserved[8];
};

#define BTRFS_MAX_ROOTREF_BUFFER_NUM 255
struct btrfs_ioctl_get_subvol_rootref_args {
		/* in/out, minimum id of rootref's treeid to be searched */
		__u64 min_treeid;

/* out */
		struct {
			__u64 treeid;
			__u64 dirid;
		} rootref[BTRFS_MAX_ROOTREF_BUFFER_NUM];

/* out, number of found items */
		__u8 num_items;
		__u8 align[7];
};

/* Error codes as returned by the kernel */
enum btrfs_err_code {
	BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET = 1,
	BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
	BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
	BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
	BTRFS_ERROR_DEV_TGT_REPLACE,
	BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
	BTRFS_ERROR_DEV_ONLY_WRITABLE,
	BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
};

#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
				   struct btrfs_ioctl_vol_args)
/* trans start and trans end are dangerous, and only for
 * use by applications that know how to avoid the
 * resulting deadlocks
 */
#define BTRFS_IOC_TRANS_START  _IO(BTRFS_IOCTL_MAGIC, 6)
#define BTRFS_IOC_TRANS_END    _IO(BTRFS_IOCTL_MAGIC, 7)
#define BTRFS_IOC_SYNC         _IO(BTRFS_IOCTL_MAGIC, 8)

#define BTRFS_IOC_CLONE        _IOW(BTRFS_IOCTL_MAGIC, 9, int)
#define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
				   struct btrfs_ioctl_vol_args)

#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
				  struct btrfs_ioctl_clone_range_args)

#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
				   struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
				struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
				struct btrfs_ioctl_defrag_range_args)
#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
				   struct btrfs_ioctl_search_args)
#define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
					   struct btrfs_ioctl_search_args_v2)
#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
				   struct btrfs_ioctl_ino_lookup_args)
#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
				    struct btrfs_ioctl_space_args)
#define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
#define BTRFS_IOC_WAIT_SYNC  _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
				   struct btrfs_ioctl_vol_args_v2)
#define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
				   struct btrfs_ioctl_vol_args_v2)
#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
#define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
#define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
			      struct btrfs_ioctl_scrub_args)
#define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
#define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
				       struct btrfs_ioctl_scrub_args)
#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
				 struct btrfs_ioctl_dev_info_args)
#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
			       struct btrfs_ioctl_fs_info_args)
#define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
				   struct btrfs_ioctl_balance_args)
#define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
#define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
					struct btrfs_ioctl_balance_args)
#define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
					struct btrfs_ioctl_ino_path_args)
#define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
					struct btrfs_ioctl_logical_ino_args)
#define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
				struct btrfs_ioctl_received_subvol_args)
#define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
				     struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
			       struct btrfs_ioctl_quota_ctl_args)
#define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
			       struct btrfs_ioctl_qgroup_assign_args)
#define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
			       struct btrfs_ioctl_qgroup_create_args)
#define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
			       struct btrfs_ioctl_qgroup_limit_args)
#define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
			       struct btrfs_ioctl_quota_rescan_args)
#define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
			       struct btrfs_ioctl_quota_rescan_args)
#define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
				   char[BTRFS_LABEL_SIZE])
#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
				   char[BTRFS_LABEL_SIZE])
#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
				      struct btrfs_ioctl_get_dev_stats)
#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
				    struct btrfs_ioctl_dev_replace_args)
#define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
					 struct btrfs_ioctl_same_args)
#define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
				   struct btrfs_ioctl_feature_flags)
#define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
				   struct btrfs_ioctl_feature_flags[2])
#define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
				   struct btrfs_ioctl_feature_flags[3])
#define BTRFS_IOC_RM_DEV_V2 _IOW(BTRFS_IOCTL_MAGIC, 58, \
				   struct btrfs_ioctl_vol_args_v2)
#define BTRFS_IOC_LOGICAL_INO_V2 _IOWR(BTRFS_IOCTL_MAGIC, 59, \
					struct btrfs_ioctl_logical_ino_args)
#define BTRFS_IOC_GET_SUBVOL_INFO _IOR(BTRFS_IOCTL_MAGIC, 60, \
				struct btrfs_ioctl_get_subvol_info_args)
#define BTRFS_IOC_GET_SUBVOL_ROOTREF _IOWR(BTRFS_IOCTL_MAGIC, 61, \
				struct btrfs_ioctl_get_subvol_rootref_args)
#define BTRFS_IOC_INO_LOOKUP_USER _IOWR(BTRFS_IOCTL_MAGIC, 62, \
				struct btrfs_ioctl_ino_lookup_user_args)

#endif /* _LINUX_BTRFS_H */

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