twx-linux/include/uapi/linux
Jeff Mahoney 2eaa055fab btrfs: add ioctls to query/change feature bits online
There are some feature bits that require no offline setup and can
be enabled online. I've only reviewed extended irefs, but there will
probably be more.

We introduce three new ioctls:
- BTRFS_IOC_GET_SUPPORTED_FEATURES: query the kernel for supported features.
- BTRFS_IOC_GET_FEATURES: query the kernel for enabled features on a per-fs
  basis, as well as querying for which features are changeable with mounted.
- BTRFS_IOC_SET_FEATURES: change features on a per-fs basis.

We introduce two new masks per feature set (_SAFE_SET and _SAFE_CLEAR) that
allow us to define which features are safe to change at runtime.

The failure modes for BTRFS_IOC_SET_FEATURES are as follows:
- Enabling a completely unsupported feature: warns and returns -ENOTSUPP
- Enabling a feature that can only be done offline: warns and returns -EPERM

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <clm@fb.com>
2014-01-28 13:19:23 -08:00
..
byteorder
caif caif: Remove my bouncing email address. 2013-04-23 13:25:51 -04:00
can can: add explicit copyrights to can's netlink header 2013-09-21 15:43:12 +02:00
cifs cifs: Move and expand MAX_SERVER_SIZE definition 2013-09-08 14:34:22 -05:00
dvb [media] demux.h: Remove duplicated enum 2013-04-08 06:53:15 -03:00
hdlc
hsi
isdn
mmc
netfilter netfilter: nfnetlink: add batch support and use it from nf_tables 2013-10-14 18:01:01 +02:00
netfilter_arp
netfilter_bridge uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
netfilter_ipv4 uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
netfilter_ipv6 netfilter: fix struct ip6t_frag field description 2013-04-02 12:25:57 +02:00
nfsd
raid UAPI: include <asm/byteorder.h> in linux/raid/md_p.h 2013-11-19 15:19:18 +11:00
spi
sunrpc
tc_act tc: export tc_defact.h to userspace 2013-10-02 16:39:11 -04:00
tc_ematch
usb USB: move the definition of USB_MAXCHILDREN 2013-07-16 15:33:02 -07:00
wimax uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
a.out.h
acct.h UAPI: fix endianness conditionals in linux/acct.h 2013-03-13 15:21:48 -07:00
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h UAPI: fix endianness conditionals in linux/aio_abi.h 2013-03-13 15:21:48 -07:00
apm_bios.h
arcfb.h
atalk.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_tcp.h
atm_zatm.h
atm.h
atmapi.h
atmarp.h
atmbr2684.h
atmclip.h
atmdev.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
audit.h Merge git://git.infradead.org/users/eparis/audit 2013-11-21 19:18:14 -08:00
auto_fs4.h
auto_fs.h unbreak automounter support on 64-bit kernel with 32-bit userspace (v2) 2013-02-08 20:42:18 +01:00
auxvec.h powerpc: Add HWCAP2 aux entry 2013-04-26 16:08:16 +10:00
ax25.h
b1lli.h
baycom.h
bcache.h bcache: Pull on disk data structures out into a separate header 2013-11-10 21:56:33 -08:00
bcm933xx_hcs.h MIPS: BCM63XX: recognize Cable Modem firmware format 2013-07-01 15:10:53 +02:00
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h
bpqether.h
bsg.h
btrfs.h btrfs: add ioctls to query/change feature bits online 2014-01-28 13:19:23 -08:00
can.h
capability.h
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h libata: identify and init ZPODD devices 2013-01-21 15:40:35 -05:00
cgroupstats.h
chio.h
cm4000_cs.h Omnikey Cardman 4000: pull in ioctl.h in user header 2013-08-28 19:26:38 -07:00
cn_proc.h connector: Added coredumping event to the process connector 2013-03-20 13:23:21 -04:00
coda_psdev.h
coda.h
coff.h
connector.h Drivers: hv: Add a new driver to support host initiated backup 2013-03-15 12:12:36 -07:00
const.h linux/const.h: Add _BITUL() and _BITULL() 2013-06-25 15:50:04 -07:00
cramfs_fs.h
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h
dccp.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlm.h
dlmconstants.h
dm-ioctl.h dm: allow remove to be deferred 2013-11-09 18:20:22 -05:00
dm-log-userspace.h
dn.h uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
dqblk_xfs.h quota: Add a new quotactl command Q_XGETQSTATV 2013-08-20 16:53:58 -05:00
edd.h
efs_fs_sb.h
elf-em.h Drop remaining references to H8/300 architecture 2013-09-16 18:20:24 -07:00
elf-fdpic.h
elf.h metag: ptrace: Implement NT_METAG_TLS 2013-03-27 14:37:47 +00:00
elfcore.h
errno.h
errqueue.h
ethtool.h net: ethtool: disambiguate XCVR_* meaning 2013-05-27 22:42:50 -07:00
eventpoll.h epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled 2013-12-03 15:35:52 +01:00
fadvise.h
falloc.h
fanotify.h
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h fib_rules: fix suppressor names and default values 2013-08-03 10:40:23 -07:00
fiemap.h ext4: add support for extent pre-caching 2013-08-16 22:05:14 -04:00
filter.h filter: add ANC_PAY_OFFSET instruction for loading payload start offset 2013-03-20 13:15:45 -04:00
firewire-cdev.h firewire: fix libdc1394/FlyCap2 iso event regression 2013-07-27 20:24:36 +02:00
firewire-constants.h
flat.h
fs.h fs: bump inode and dentry counters to long 2013-09-10 18:56:29 -04:00
fsl_hypervisor.h
fuse.h fuse: add flag to turn on async direct IO 2013-05-01 14:37:21 +02:00
futex.h
gameport.h
gen_stats.h net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
genetlink.h genetlink/pmcraid: use proper genetlink multicast API 2013-11-28 18:26:30 -05:00
gfs2_ondisk.h
gigaset_dev.h
hash_info.h crypto: provide single place for hash algo information 2013-10-25 17:14:03 -04:00
hdlc.h
hdlcdrv.h
hdreg.h
hid.h
hiddev.h
hidraw.h
hpet.h
hsr_netlink.h net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0) 2013-11-03 23:20:14 -05:00
hw_breakpoint.h
hysdn_if.h
i2c-dev.h
i2c.h
i2o-dev.h
i8k.h
icmp.h
icmpv6.h ICMPv6: treat dest unreachable codes 5 and 6 as EACCES, not EPROTO 2013-09-03 22:11:44 -04:00
if_addr.h
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h net: if_arp: add ARPHRD_NETLINK type 2013-06-24 16:39:05 -07:00
if_bonding.h bonding: modify the old and add new xmit hash policies 2013-10-03 15:36:38 -04:00
if_bridge.h uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
if_cablemodem.h if_cablemodem.h: Add parenthesis around ioctl macros 2013-05-08 13:13:30 -07:00
if_eql.h
if_ether.h net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0) 2013-11-03 23:20:14 -05:00
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h net/hsr: Support iproute print_opt ('ip -details ...') 2013-11-30 12:48:14 -05:00
if_ltalk.h
if_packet.h net: packet: add randomized fanout scheduler 2013-08-29 16:43:29 -04:00
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h pptp: fix byte order warnings 2013-08-13 15:10:22 -07:00
if_slip.h
if_team.h
if_tun.h tun: Get skfilter layout 2013-08-21 12:21:45 -07:00
if_tunnel.h
if_vlan.h net/8021q: Implement Multiple VLAN Registration Protocol (MVRP) 2013-02-10 20:37:22 -05:00
if_x25.h
if.h net: Add layer 2 hardware acceleration operations for macvlan devices 2013-11-07 19:11:41 -05:00
igmp.h
in6.h net: sync some IP headers with glibc 2013-09-04 13:12:43 -04:00
in_route.h
in.h ipv4: introduce new IP_MTU_DISCOVER mode IP_PMTUDISC_INTERFACE 2013-11-05 21:52:27 -05:00
inet_diag.h
inotify.h
input.h Input: define KEY_WWAN for Wireless WAN 2013-12-16 02:20:40 -08:00
ioctl.h
ip6_tunnel.h
ip_vs.h ipvs: fix the IPVS_CMD_ATTR_MAX definition 2013-10-15 10:36:01 +09:00
ip.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-26 16:37:08 -04:00
ipc.h
ipmi_msgdefs.h
ipmi.h ipmi: remove superfluous kernel/userspace explanation 2013-02-27 19:10:21 -08:00
ipsec.h
ipv6_route.h
ipv6.h ipv6: drop fragmented ndisc packets by default (RFC 6980) 2013-08-29 15:32:08 -04:00
ipx.h
irda.h
irqnr.h
isdn_divertif.h
isdn_ppp.h
isdn.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
ixjuser.h
jffs2.h
joystick.h
Kbuild Intel MIC Host Driver Changes for Virtio Devices. 2013-09-26 13:50:56 -07:00
kd.h
kdev_t.h
kernel-page-flags.h
kernel.h
kernelcapi.h
kexec.h
keyboard.h
keyctl.h KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches 2013-09-24 10:35:19 +01:00
kvm_para.h kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi 2013-08-26 12:46:01 +03:00
kvm.h Merge branch 'kvm-ppc-queue' of git://github.com/agraf/linux-2.6 into queue 2013-11-04 10:20:57 +02:00
l2tp.h
libc-compat.h net: sync some IP headers with glibc 2013-09-04 13:12:43 -04:00
limits.h
llc.h
loop.h
lp.h
magic.h Btrfs: add tests for find_lock_delalloc_range 2013-11-11 21:56:51 -05:00
major.h mtd: Move major number definitions to major.h 2013-11-06 23:32:59 -08:00
map_to_7segment.h
matroxfb.h
mdio.h
media.h [media] media: add support for decoder as one of media entity types 2013-03-21 14:05:31 -03:00
mei.h
mempolicy.h mm: numa: Migrate on reference policy 2012-12-11 14:42:48 +00:00
meye.h [media] meye: convert to the control framework 2013-02-05 18:23:47 -02:00
mic_common.h misc: mic: Fix endianness issues. 2013-11-27 11:03:38 -08:00
mic_ioctl.h misc: mic: fix a warning in the IOCTL header file. 2013-09-27 17:20:19 -07:00
mii.h
minix_fs.h
mman.h
mmtimer.h
module.h module: add flags arg to sys_finit_module() 2012-12-14 13:05:23 +10:30
mqueue.h
mroute6.h mcast: add multicast proxy support (IPv4 and IPv6) 2013-01-21 13:55:14 -05:00
mroute.h mcast: add multicast proxy support (IPv4 and IPv6) 2013-01-21 13:55:14 -05:00
msdos_fs.h fatfs: add FAT_IOCTL_GET_VOLUME_ID 2013-07-09 10:33:25 -07:00
msg.h ipc: introduce message queue copy feature 2013-01-04 16:11:45 -08:00
mtio.h
n_r3964.h
nbd.h nbd: support FLUSH requests 2013-02-27 19:10:22 -08:00
ncp_fs.h
ncp_mount.h
ncp_no.h
ncp.h
neighbour.h vxlan: generalize forwarding tables 2013-03-17 12:23:46 -04:00
net_dropmon.h
net_tstamp.h
net.h
netconf.h netconf: advertise mc_forwarding status 2012-12-04 13:08:10 -05:00
netdevice.h
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netfilter.h
netlink_diag.h diag: warn about missing first netlink attribute 2013-11-28 18:16:43 -05:00
netlink.h netlink: mmaped netlink: ring setup 2013-04-19 14:57:57 -04:00
netrom.h
nfc.h NFC: Define secure element IO API and commands 2013-09-25 02:30:47 +02:00
nfs2.h
nfs3.h
nfs4_mount.h
nfs4.h
nfs_fs.h
nfs_idmap.h
nfs_mount.h NFS: stop using NFS_MOUNT_SECFLAVOUR server flag 2013-10-28 15:37:56 -04:00
nfs.h
nfsacl.h
nl80211.h nl80211/cfg80211: enable DFS for IBSS mode 2013-10-28 15:05:21 +01:00
nubus.h
nvme.h NVMe: Update nvme_id_power_state with latest spec 2013-09-03 16:32:26 -04:00
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h openvswitch: TCP flags matching support. 2013-11-01 18:43:45 -07:00
packet_diag.h diag: warn about missing first netlink attribute 2013-11-28 18:16:43 -05:00
param.h
parport.h
patchkey.h
pci_regs.h PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
pci.h
perf_event.h perf: Document the new transaction sample type 2013-12-17 15:04:01 +01:00
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h net: sched: cls_bpf: add BPF-based classifier 2013-10-29 17:33:17 -04:00
pkt_sched.h pkt_sched: fq: fix pacing for small frames 2013-11-15 21:01:52 -05:00
pktcdvd.h
pmu.h
poll.h
posix_types.h
ppdev.h
ppp_defs.h
ppp-comp.h
ppp-ioctl.h
pps.h
prctl.h
ptp_clock.h
ptrace.h ptrace: add ability to get/set signal-blocked mask 2013-07-03 16:08:01 -07:00
qnx4_fs.h
qnxtypes.h
quota.h
radeonfb.h
random.h random32: move rnd_state to linux/random.h 2013-11-11 14:32:14 -05:00
raw.h
rds.h
reboot.h
reiserfs_fs.h
reiserfs_xattr.h xattr: Constify ->name member of "struct xattr". 2013-07-25 19:30:03 +10:00
resource.h
rfkill.h rfkill: Add NFC to the list of supported radios 2013-04-12 16:54:38 +02:00
romfs_fs.h
rose.h
route.h
rtc.h
rtnetlink.h tcp: introduce a per-route knob for quick ack 2013-06-19 23:06:51 -07:00
scc.h
sched.h
screen_info.h
sctp.h net: sctp: trivial: update mailing list address 2013-07-24 17:53:38 -07:00
sdla.h
seccomp.h
securebits.h
selinux_netlink.h
sem.h
serial_core.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2013-09-06 11:14:33 -07:00
serial_reg.h Revert "OMAP: UART: Keep the TX fifo full when possible" 2013-08-27 16:02:18 -07:00
serial.h
serio.h
shm.h
signal.h unify SS_ONSTACK/SS_DISABLE definitions 2012-12-19 18:07:39 -05:00
signalfd.h
snmp.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-16 15:37:26 -07:00
sock_diag.h
socket.h
sockios.h
som.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
string.h
suspend_ioctls.h
swab.h byteorder: allow arch to opt to use GCC intrinsics for byteswapping 2012-12-06 01:22:31 +00:00
synclink.h
sysctl.h
sysinfo.h
taskstats.h
tcp_metrics.h
tcp.h tcp: TCP_NOTSENT_LOWAT socket option 2013-07-24 17:54:48 -07:00
telephony.h
termios.h
time.h timekeeping: Add CLOCK_TAI clockid 2013-03-22 16:19:59 -07:00
times.h
timex.h
tiocl.h
tipc_config.h tipc: update code comments to reflect new uapi header path 2013-06-17 15:53:00 -07:00
tipc.h tipc: update code comments to reflect new uapi header path 2013-06-17 15:53:00 -07:00
toshiba.h
tty_flags.h
tty.h
types.h
udf_fs_i.h
udp.h
uhid.h HID: uhid: use generic hidinput_input_event() 2013-07-31 10:33:05 +02:00
uinput.h
uio.h
ultrasound.h
un.h
unistd.h
unix_diag.h diag: warn about missing first netlink attribute 2013-11-28 18:16:43 -05:00
usbdevice_fs.h
utime.h
utsname.h
uuid.h
uvcvideo.h
v4l2-common.h
v4l2-controls.h [media] v4l: ti-vpe: Add VPE mem to mem driver 2013-10-28 15:17:30 -02:00
v4l2-dv-timings.h [media] v4l2-dv-timings.h: remove duplicate V4L2_DV_BT_DMT_1366X768P60 2013-08-18 08:13:51 -03:00
v4l2-mediabus.h [media] v4l: Add media format codes for ARGB8888 and AYUV8888 on 32-bit busses 2013-08-18 07:23:07 -03:00
v4l2-subdev.h
veth.h
vfio.h vfio-pci: PCI hot reset interface 2013-09-04 11:28:04 -06:00
vhost.h tcm_vhost: header split up 2013-05-02 13:40:15 +03:00
videodev2.h [media] videodev2.h: defines to calculate blanking and frame sizes 2013-08-18 08:17:35 -03:00
virtio_9p.h
virtio_balloon.h virtio: do not export "u16" and "u64" to userspace 2013-04-02 16:42:58 +10:30
virtio_blk.h
virtio_config.h virtio: VIRTIO_F_ANY_LAYOUT feature 2013-07-09 10:47:45 +09:30
virtio_console.h Simple warning fix for module sections. If too late to pull, no big deal. 2013-07-03 13:09:06 -07:00
virtio_ids.h caif_virtio: Introduce caif over virtio 2013-03-20 14:06:06 +10:30
virtio_net.h uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
virtio_pci.h virtio_pci: better macro exported in uapi 2013-05-20 12:08:09 +09:30
virtio_ring.h
virtio_rng.h
vm_sockets.h VSOCK: Split vm_sockets.h into kernel/uapi 2013-03-08 12:24:48 -05:00
vt.h
wait.h
wanrouter.h wanrouter: delete now orphaned header content, files/drivers 2013-01-31 19:56:35 -05:00
watchdog.h
wimax.h
wireless.h
x25.h
xattr.h hfsplus: add osx.* prefix for handling namespace of Mac OS X extended attributes 2013-02-27 19:10:10 -08:00
xfrm.h xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00