Nikolay Borisov 7239ff4b2b btrfs: Introduce support for FSID change without metadata rewrite ... This field is going to be used when the user wants to change the UUID of the filesystem without having to rewrite all metadata blocks. This field adds another level of indirection such that when the FSID is changed what really happens is the current UUID (the one with which the fs was created) is copied to the 'metadata_uuid' field in the superblock as well as a new incompat flag is set METADATA_UUID. When the kernel detects this flag is set it knows that the superblock in fact has 2 UUIDs: 1. Is the UUID which is user-visible, currently known as FSID. 2. Metadata UUID - this is the UUID which is stamped into all on-disk datastructures belonging to this file system. When the new incompat flag is present device scanning checks whether both fsid/metadata_uuid of the scanned device match any of the registered filesystems. When the flag is not set then both UUIDs are equal and only the FSID is retained on disk, metadata_uuid is set only in-memory during mount. Additionally a new metadata_uuid field is also added to the fs_info struct. It's initialised either with the FSID in case METADATA_UUID incompat flag is not set or with the metdata_uuid of the superblock otherwise. This commit introduces the new fields as well as the new incompat flag and switches all users of the fsid to the new logic. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> [ minor updates in comments ] Signed-off-by: David Sterba <dsterba@suse.com>		2018-12-17 14:51:37 +01:00
..
android	binder: Add BINDER_GET_NODE_INFO_FOR_REF ioctl.	2018-09-14 15:22:48 +02:00
byteorder
caif
can
cifs
dvb
genwqe
hdlc
hsi
iio
isdn
mmc
netfilter	Revert "netfilter: nft_numgen: add map lookups for numgen random operations"	2018-10-29 11:11:33 +01:00
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6
nfsd
raid
sched
spi
sunrpc
tc_act
tc_ematch
usb	USB for v4.20	2018-10-05 08:32:01 -07:00
wimax
a.out.h
acct.h
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h
am437x-vpfe.h
apm_bios.h
arcfb.h
arm_sdei.h
aspeed-lpc-ctrl.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 branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-08-15 22:54:12 -07:00
auto_dev-ioctl.h
auto_fs4.h
auto_fs.h	autofs: add AUTOFS_EXP_FORCED flag	2018-08-22 10:52:49 -07:00
auxvec.h
ax25.h
b1lli.h
batadv_packet.h
batman_adv.h
baycom.h
bcache.h
bcm933xx_hcs.h
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h
blkzoned.h	block: Introduce BLKGETNRZONES ioctl	2018-10-25 11:17:40 -06:00
bpf_common.h
bpf_perf_event.h
bpf.h	bpf: Improve socket lookup reuseport documentation	2018-11-30 17:17:38 -08:00
bpfilter.h
bpqether.h
bsg.h
bt-bmc.h
btf.h
btrfs_tree.h	btrfs: Introduce support for FSID change without metadata rewrite	2018-12-17 14:51:37 +01:00
btrfs.h	btrfs: Introduce support for FSID change without metadata rewrite	2018-12-17 14:51:37 +01:00
can.h
capability.h
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h
cec-funcs.h
cec.h	media: cec: add new tx/rx status bits to detect aborts/timeouts	2018-10-05 11:22:39 -04:00
cgroupstats.h
chio.h
cm4000_cs.h
cn_proc.h
coda_psdev.h
coda.h
coff.h
connector.h
const.h
coresight-stm.h
cramfs_fs.h
cryptouser.h	crypto: user - Implement a generic crypto statistics	2018-09-28 12:46:25 +08:00
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h
dccp.h
devlink.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlm.h
dlmconstants.h
dm-ioctl.h
dm-log-userspace.h
dma-buf.h
dn.h
dns_resolver.h	dns: Allow the dns resolver to retrieve a server set	2018-10-04 09:40:52 -07:00
dqblk_xfs.h
edd.h
efs_fs_sb.h
elf-em.h	Move EM_RISCV into elf-em.h	2018-10-31 12:13:47 -07:00
elf-fdpic.h
elf.h
elfcore.h
errno.h
errqueue.h
erspan.h
ethtool.h	ethtool: drop get_settings and set_settings callbacks	2018-08-29 19:46:10 -07:00
eventpoll.h
fadvise.h
falloc.h
fanotify.h	fanotify: support reporting thread id instead of process id	2018-10-08 13:48:45 +02:00
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h
fiemap.h
filter.h
firewire-cdev.h	FireWire: clean up firewire-cdev.h kernel-doc	2018-09-06 09:40:59 -06:00
firewire-constants.h
flat.h
fou.h
fpga-dfl.h
fs.h	crypto: speck - remove Speck	2018-09-04 11:35:03 +08:00
fsi.h
fsl_hypervisor.h
fsmap.h
fuse.h	fuse: enable caching of symlinks	2018-10-15 15:43:07 +02:00
futex.h
gameport.h
gen_stats.h	net/core: Add new basic hardware counter	2018-09-24 12:18:42 -07:00
genetlink.h
gfs2_ondisk.h
gigaset_dev.h
gpio.h	gpio: uapi: Grammar s/array/array of/	2018-09-13 10:46:24 +02:00
gsmmux.h
gtp.h
hash_info.h
hdlc.h
hdlcdrv.h
hdreg.h
hid.h
hiddev.h
hidraw.h
hpet.h
hsr_netlink.h
hw_breakpoint.h
hyperv.h
hysdn_if.h
i2c-dev.h
i2c.h
i2o-dev.h
i8k.h
icmp.h
icmpv6.h
if_addr.h	if_addr: add IFA_TARGET_NETNSID	2018-09-05 22:27:11 -07:00
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h	net: if_arp: use define instead of hard-coded value	2018-09-21 19:22:32 -07:00
if_bonding.h
if_bridge.h
if_cablemodem.h
if_eql.h
if_ether.h
if_fc.h
if_fddi.h	FDDI: defza: Add support for DEC FDDIcontroller 700 TURBOchannel adapter	2018-10-15 21:46:06 -07:00
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h	net: bridge: add support for per-port vlan stats	2018-10-12 10:18:58 -07:00
if_ltalk.h
if_macsec.h
if_packet.h	packet: add sockopt to ignore outgoing packets	2018-09-05 22:09:37 -07:00
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h
if_slip.h
if_team.h
if_tun.h
if_tunnel.h
if_vlan.h
if_x25.h
if_xdp.h
if.h
ife.h
igmp.h
ila.h
in6.h	ipv6: Add sockopt IPV6_MULTICAST_ALL analogue to IP_MULTICAST_ALL	2018-09-13 08:17:27 -07:00
in_route.h
in.h
inet_diag.h
inotify.h
input-event-codes.h	Input: restore EV_ABS ABS_RESERVED	2018-12-07 15:13:40 +01:00
input.h
ioctl.h
ip6_tunnel.h
ip_vs.h
ip.h
ipc.h
ipmi_bmc.h
ipmi_msgdefs.h
ipmi.h
ipsec.h
ipv6_route.h
ipv6.h
ipx.h
irqnr.h
isdn_divertif.h
isdn_ppp.h
isdn.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
jffs2.h
joystick.h
Kbuild
kcm.h
kcmp.h
kcov.h
kd.h
kdev_t.h
kernel-page-flags.h
kernel.h
kernelcapi.h
kexec.h
keyboard.h
keyctl.h	KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2]	2018-10-26 09:30:46 +01:00
kfd_ioctl.h	uapi: fix more linux/kfd_ioctl.h userspace compilation errors	2018-11-05 15:46:51 -05:00
kvm_para.h
kvm.h	KVM/arm updates for 4.20	2018-10-19 15:24:24 +02:00
l2tp.h
libc-compat.h
lightnvm.h
limits.h
lirc.h
llc.h
loop.h
lp.h
lwtunnel.h
magic.h	xfs: add a define for statfs magic to uapi	2018-10-18 17:20:19 +11:00
major.h
map_to_7segment.h
matroxfb.h
max2175.h
mdio.h
media-bus-format.h
media.h	media: uapi/linux/media.h: add request API	2018-08-31 11:04:23 -04:00
mei.h
membarrier.h
memfd.h	mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes	2018-10-05 16:32:04 -07:00
mempolicy.h
meye.h
mic_common.h
mic_ioctl.h
mii.h
minix_fs.h
mman.h	mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes	2018-10-05 16:32:04 -07:00
mmtimer.h
module.h
mpls_iptunnel.h
mpls.h
mqueue.h
mroute6.h
mroute.h
msdos_fs.h
msg.h
mtio.h
n_r3964.h
nbd-netlink.h
nbd.h
ncsi.h	net/ncsi: Extend NC-SI Netlink interface to allow user space to send NC-SI command	2018-10-15 22:00:59 -07:00
ndctl.h	UAPI: ndctl: Remove use of PAGE_SIZE	2018-10-17 13:56:58 -07:00
neighbour.h	net: bridge: add support for sticky fdb entries	2018-09-12 20:30:03 -07:00
net_dropmon.h
net_namespace.h
net_tstamp.h
net.h
netconf.h
netdevice.h
netfilter_arp.h
netfilter_bridge.h	netfilter: bridge: define INT_MIN & INT_MAX in userspace	2018-10-25 10:25:22 +02:00
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netfilter.h
netlink_diag.h
netlink.h	netlink: Add new socket option to enable strict checking on dumps	2018-10-08 10:39:04 -07:00
netrom.h
nfc.h
nfs2.h
nfs3.h
nfs4_mount.h
nfs4.h
nfs_fs.h
nfs_idmap.h
nfs_mount.h
nfs.h
nfsacl.h
nilfs2_api.h
nilfs2_ondisk.h
nl80211.h	nl80211: Add per peer statistics to compute FCS error rate	2018-10-12 12:56:34 +02:00
nsfs.h
nubus.h
nvme_ioctl.h
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h
packet_diag.h
param.h
parport.h
patchkey.h
pci_regs.h	PCI: Add support for Immediate Readiness	2018-09-28 12:47:34 -05:00
pci.h
pcitest.h
perf_event.h	perf tools: Don't clone maps from parent when synthesizing forks	2018-10-31 10:18:01 -03:00
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h	net: sched: cls_flower: dump offload count value	2018-09-10 10:35:15 -07:00
pkt_sched.h	tc: Add support for configuring the taprio scheduler	2018-10-04 13:52:23 -07:00
pktcdvd.h
pmu.h
poll.h
posix_acl_xattr.h
posix_acl.h
posix_types.h
ppdev.h
ppp_defs.h
ppp-comp.h
ppp-ioctl.h
pps.h
pr.h
prctl.h	x86/speculation: Add prctl() control for indirect branch speculation	2018-11-28 11:57:13 +01:00
psample.h
psci.h
psp-sev.h
ptp_clock.h
ptrace.h
qemu_fw_cfg.h
qnx4_fs.h
qnxtypes.h
qrtr.h
quota.h
radeonfb.h
random.h
raw.h
rds.h	uapi: Fix linux/rds.h userspace compilation errors.	2018-09-02 16:14:44 -07:00
reboot.h
reiserfs_fs.h
reiserfs_xattr.h
resource.h
rfkill.h
rio_cm_cdev.h
rio_mport_cdev.h
romfs_fs.h
rose.h
route.h
rpmsg.h
rseq.h
rtc.h
rtnetlink.h
rxrpc.h
scc.h
sched.h
scif_ioctl.h
screen_info.h
sctp.h	sctp: define SCTP_SS_DEFAULT for Stream schedulers	2018-11-03 19:40:29 -07:00
sdla.h
seccomp.h
securebits.h
sed-opal.h
seg6_genl.h
seg6_hmac.h
seg6_iptunnel.h
seg6_local.h
seg6.h
selinux_netlink.h
sem.h
serial_core.h
serial_reg.h
serial.h	tty/serial_core: add ISO7816 infrastructure	2018-10-02 13:38:55 -07:00
serio.h
shm.h	mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes	2018-10-05 16:32:04 -07:00
signal.h
signalfd.h
smc_diag.h	net/smc: retain old name for diag_mode field	2018-10-07 21:06:28 -07:00
smc.h
smiapp.h
snmp.h
sock_diag.h
socket.h
sockios.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
stm.h
string.h
suspend_ioctls.h
swab.h
switchtec_ioctl.h
sync_file.h
synclink.h
sysctl.h
sysinfo.h
target_core_user.h
taskstats.h	delayacct: track delays from thrashing cache pages	2018-10-26 16:26:32 -07:00
tcp_metrics.h
tcp.h
tee.h
termios.h
thermal.h
time.h
timerfd.h
times.h
timex.h
tiocl.h
tipc_config.h
tipc_netlink.h
tipc_sockets_diag.h
tipc.h
tls.h
toshiba.h
tty_flags.h
tty.h
types.h
udf_fs_i.h
udmabuf.h	Add udmabuf misc device	2018-09-03 13:29:38 +02:00
udp.h	rxrpc: Use the UDP encap_rcv hook	2018-10-08 15:45:18 +01:00
uhid.h
uinput.h
uio.h
uleds.h
ultrasound.h
un.h
unistd.h
unix_diag.h
usbdevice_fs.h
usbip.h
userfaultfd.h
userio.h
utime.h
utsname.h
uuid.h
uvcvideo.h
v4l2-common.h
v4l2-controls.h	media: mpeg2-ctrls.h: move MPEG2 state controls to non-public header	2018-12-05 13:06:31 -05:00
v4l2-dv-timings.h
v4l2-mediabus.h
v4l2-subdev.h
vbox_err.h
vbox_vmmdev_types.h
vboxguest.h
veth.h
vfio_ccw.h
vfio.h	VFIO updates for v4.20	2018-10-31 11:01:38 -07:00
vhost.h	vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition	2018-09-03 21:23:24 -07:00
videodev2.h	media: mpeg2-ctrls.h: move MPEG2 state controls to non-public header	2018-12-05 13:06:31 -05:00
virtio_9p.h
virtio_balloon.h	virtio-balloon: VIRTIO_BALLOON_F_PAGE_POISON	2018-10-24 20:57:55 -04:00
virtio_blk.h
virtio_config.h
virtio_console.h
virtio_crypto.h
virtio_gpu.h
virtio_ids.h
virtio_input.h
virtio_mmio.h
virtio_net.h
virtio_pci.h
virtio_ring.h
virtio_rng.h
virtio_scsi.h
virtio_types.h
virtio_vsock.h
vm_sockets_diag.h
vm_sockets.h
vmcore.h
vsockmon.h
vt.h
vtpm_proxy.h
wait.h
wanrouter.h
watchdog.h
wimax.h
wireless.h
wmi.h
x25.h
xattr.h
xfrm.h
xilinx-v4l2-controls.h
zorro_ids.h
zorro.h