Ilya Maximets 59f44c9ccc net: openvswitch: allow providing upcall pid for the 'execute' command ... When a packet enters OVS datapath and there is no flow to handle it, packet goes to userspace through a MISS upcall. With per-CPU upcall dispatch mechanism, we're using the current CPU id to select the Netlink PID on which to send this packet. This allows us to send packets from the same traffic flow through the same handler. The handler will process the packet, install required flow into the kernel and re-inject the original packet via OVS_PACKET_CMD_EXECUTE. While handling OVS_PACKET_CMD_EXECUTE, however, we may hit a recirculation action that will pass the (likely modified) packet through the flow lookup again. And if the flow is not found, the packet will be sent to userspace again through another MISS upcall. However, the handler thread in userspace is likely running on a different CPU core, and the OVS_PACKET_CMD_EXECUTE request is handled in the syscall context of that thread. So, when the time comes to send the packet through another upcall, the per-CPU dispatch will choose a different Netlink PID, and this packet will end up processed by a different handler thread on a different CPU. The process continues as long as there are new recirculations, each time the packet goes to a different handler thread before it is sent out of the OVS datapath to the destination port. In real setups the number of recirculations can go up to 4 or 5, sometimes more. There is always a chance to re-order packets while processing upcalls, because userspace will first install the flow and then re-inject the original packet. So, there is a race window when the flow is already installed and the second packet can match it and be forwarded to the destination before the first packet is re-injected. But the fact that packets are going through multiple upcalls handled by different userspace threads makes the reordering noticeably more likely, because we not only have a race between the kernel and a userspace handler (which is hard to avoid), but also between multiple userspace handlers. For example, let's assume that 10 packets got enqueued through a MISS upcall for handler-1, it will start processing them, will install the flow into the kernel and start re-injecting packets back, from where they will go through another MISS to handler-2. Handler-2 will install the flow into the kernel and start re-injecting the packets, while handler-1 continues to re-inject the last of the 10 packets, they will hit the flow installed by handler-2 and be forwarded without going to the handler-2, while handler-2 still re-injects the first of these 10 packets. Given multiple recirculations and misses, these 10 packets may end up completely mixed up on the output from the datapath. Let's allow userspace to specify on which Netlink PID the packets should be upcalled while processing OVS_PACKET_CMD_EXECUTE. This makes it possible to ensure that all the packets are processed by the same handler thread in the userspace even with them being upcalled multiple times in the process. Packets will remain in order since they will be enqueued to the same socket and re-injected in the same order. This doesn't eliminate re-ordering as stated above, since we still have a race between kernel and the userspace thread, but it allows to eliminate races between multiple userspace threads. Userspace knows the PID of the socket on which the original upcall is received, so there is no need to send it up from the kernel. Solution requires storing the value somewhere for the duration of the packet processing. There are two potential places for this: our skb extension or the per-CPU storage. It's not clear which is better, so just following currently used scheme of storing this kind of things along the skb. We still have a decent amount of space in the cb. Signed-off-by: Ilya Maximets <i.maximets@ovn.org> Acked-by: Flavio Leitner <fbl@sysclose.org> Acked-by: Eelco Chaudron <echaudro@redhat.com> Acked-by: Aaron Conole <aconole@redhat.com> Link: https://patch.msgid.link/20250702155043.2331772-1-i.maximets@ovn.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-07-07 14:30:39 -07:00
..
android	…
byteorder	…
caif	…
can	…
cifs	…
counter	counter: microchip-tcb-capture: Add capture extensions for registers RA/RB	2025-03-08 08:57:18 +09:00
dvb	…
genwqe	…
hdlc	…
hsi	…
iio	iio: introduce the FAULT event type	2025-02-08 15:16:29 +00:00
isdn	…
media	media: uapi: Add stats info and parameters buffer for C3 ISP	2025-05-09 12:08:37 +02:00
misc	…
mmc	…
netfilter	netfilter: nf_tables: Add notifications for hook changes	2025-05-23 13:57:14 +02:00
netfilter_arp	…
netfilter_bridge	…
netfilter_ipv4	…
netfilter_ipv6	…
nfsd	…
raid	md: reintroduce md-linear	2025-01-13 07:36:29 -08:00
sched	…
spi	…
sunrpc	…
surface_aggregator	…
tc_act	…
tc_ematch	…
usb	USB/Thunderbolt update for 6.15-rc1	2025-04-02 18:23:31 -07:00
a.out.h	…
acct.h	…
acrn.h	…
adb.h	…
adfs_fs.h	…
affs_hardblocks.h	…
agpgart.h	…
aio_abi.h	…
am437x-vpfe.h	…
amt.h	…
apm_bios.h	…
arcfb.h	…
arm_sdei.h	…
aspeed-lpc-ctrl.h	…
aspeed-p2a-ctrl.h	…
aspeed-video.h	…
atalk.h	…
atm.h	…
atm_eni.h	…
atm_he.h	…
atm_idt77105.h	…
atm_nicstar.h	…
atm_tcp.h	…
atm_zatm.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	landlock: Add AUDIT_LANDLOCK_DOMAIN and log domain status	2025-03-26 13:59:38 +01:00
auto_dev-ioctl.h	…
auto_fs.h	…
auto_fs4.h	…
auxvec.h	…
ax25.h	…
batadv_packet.h	batman-adv: Add flex array to struct batadv_tvlv_tt_data	2024-10-05 18:23:38 +02:00
batman_adv.h	batman-adv: Use consistent name for mesh interface	2025-02-22 11:36:22 +01:00
baycom.h	…
bcm933xx_hcs.h	…
bfs_fs.h	…
binfmts.h	…
bits.h	tools headers: Synchronize linux/bits.h with the kernel sources	2025-06-17 16:55:24 -03:00
blk-crypto.h	blk-crypto: add ioctls to create and prepare hardware-wrapped keys	2025-02-10 09:54:19 -07:00
blkdev.h	…
blkpg.h	…
blktrace_api.h	block: remove bounce buffering support	2025-05-05 13:22:39 -06:00
blkzoned.h	…
bpf.h	bpf: Fix L4 csum update on IPv6 in CHECKSUM_COMPLETE	2025-05-30 19:53:51 -07:00
bpf_common.h	…
bpf_perf_event.h	…
bpqether.h	…
bsg.h	…
bt-bmc.h	…
btf.h	docs/bpf: Document the semantics of BTF tags with kind_flag	2025-02-05 16:17:59 -08:00
btrfs.h	btrfs: defrag: extend ioctl to accept compression levels	2025-03-18 20:35:50 +01:00
btrfs_tree.h	…
cachefiles.h	…
can.h	can: canxl: support Remote Request Substitution bit access	2025-02-19 11:10:54 +01:00
capability.h	reboot: add support for configuring emergency hardware protection action	2025-03-16 23:24:14 -07:00
capi.h	…
cciss_defs.h	…
cciss_ioctl.h	…
ccs.h	…
cdrom.h	…
cec-funcs.h	media: uapi: cec-funcs.h: use CEC_LOG_ADDR_BROADCAST	2025-04-30 08:16:07 +02:00
cec.h	…
cfm_bridge.h	…
cgroupstats.h	…
chio.h	…
close_range.h	…
cn_proc.h	…
coda.h	…
coff.h	…
comedi.h	…
connector.h	…
const.h	treewide: fix typo 'unsigned __init128' -> 'unsigned __int128'	2025-03-05 12:00:03 -05:00
coresight-stm.h	…
counter.h	counter: add direction change event	2025-02-05 13:22:04 +09:00
cramfs_fs.h	…
cryptouser.h	crypto: sig - Introduce sig_alg backend	2024-10-05 13:22:04 +08:00
cuda.h	…
cxl_mem.h	…
cyclades.h	…
cycx_cfm.h	…
dcbnl.h	…
dccp.h	…
devlink.h	devlink: Extend devlink rate API with traffic classes bandwidth management	2025-07-02 15:39:05 -07:00
dlm.h	…
dlm_device.h	…
dlm_plock.h	…
dlmconstants.h	…
dm-ioctl.h	dm mpath: Interface for explicit probing of active paths	2025-05-04 11:35:06 +02:00
dm-log-userspace.h	…
dma-buf.h	…
dma-heap.h	…
dns_resolver.h	…
dpll.h	dpll: add reference-sync netlink attribute	2025-06-27 16:38:02 -07:00
dqblk_xfs.h	…
dw100.h	…
edd.h	…
efs_fs_sb.h	…
elf-em.h	…
elf-fdpic.h	…
elf.h	Updates for the VDSO infrastructure:	2025-03-25 11:30:42 -07:00
errno.h	…
errqueue.h	net-timestamp: COMPLETION timestamp on packet tx completion	2025-03-25 12:48:05 -04:00
erspan.h	…
ethtool.h	ethtool: Block setting of symmetric RSS when non-symmetric rx-flow-hash is requested	2025-05-09 16:24:28 -07:00
ethtool_netlink.h	netlink: specs: add the multicast group name to spec	2025-06-25 15:24:13 -07:00
ethtool_netlink_generated.h	net: ethtool: rss: add notifications	2025-06-25 15:24:14 -07:00
eventfd.h	…
eventpoll.h	…
exfat.h	…
ext4.h	…
f2fs.h	f2fs: add ioctl to get IO priority hint	2025-02-12 02:29:30 +00:00
fadvise.h	…
falloc.h	…
fanotify.h	fanotify: notify on mount attach and detach	2025-02-05 17:21:07 +01:00
fb.h	…
fcntl.h	exec: Add a new AT_EXECVE_CHECK flag to execveat(2)	2024-12-18 17:00:29 -08:00
fd.h	…
fdreg.h	…
fib_rules.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
fiemap.h	fiemap: use kernel-doc includes in fiemap docbook	2024-12-22 11:29:50 +01:00
filter.h	…
firewire-cdev.h	drivers: firewire: firewire-cdev.h: fix identation on a kernel-doc markup	2025-03-04 09:47:36 -07:00
firewire-constants.h	…
fou.h	…
fpga-dfl.h	…
fs.h	fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions	2025-05-11 17:48:16 -07:00
fscrypt.h	fscrypt: add support for hardware-wrapped keys	2025-04-08 19:32:11 -07:00
fsi.h	…
fsl_hypervisor.h	…
fsl_mc.h	…
fsmap.h	…
fsverity.h	…
fuse.h	fuse: add more control over cache invalidation behaviour	2025-04-15 12:56:40 +02:00
futex.h	futex: Implement FUTEX2_MPOL	2025-05-03 12:02:09 +02:00
gameport.h	…
gen_stats.h	…
genetlink.h	…
gfs2_ondisk.h	…
gpio.h	…
gsmmux.h	…
gtp.h	…
handshake.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	…
i2c-dev.h	…
i2c.h	…
i2o-dev.h	…
i8k.h	…
icmp.h	…
icmpv6.h	…
idxd.h	…
if.h	…
if_addr.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_addrlabel.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_alg.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_arcnet.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_arp.h	…
if_bonding.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_bridge.h	net: bridge: Add offload_fail_notification bopt	2025-04-14 15:56:42 -07:00
if_eql.h	…
if_ether.h	…
if_fc.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_fddi.h	…
if_hippi.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_infiniband.h	…
if_link.h	vxlan: Support MC routing in the underlay	2025-06-17 18:18:46 -07:00
if_ltalk.h	…
if_macsec.h	…
if_packet.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_phonet.h	…
if_plip.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_ppp.h	…
if_pppol2tp.h	…
if_pppox.h	…
if_slip.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_team.h	…
if_tun.h	…
if_tunnel.h	…
if_vlan.h	…
if_x25.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
if_xdp.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
ife.h	…
igmp.h	…
ila.h	…
in.h	include: uapi: protocol number and packet structs for AGGFRAG in ESP	2024-12-05 10:01:09 +01:00
in6.h	uapi: in6: restore visibility of most IPv6 socket options	2025-06-10 14:41:14 -07:00
in_route.h	…
inet_diag.h	…
inotify.h	…
input-event-codes.h	ALSA: Add USB audio device jack type	2025-04-11 13:02:30 +02:00
input.h	…
io_uring.h	for-6.16/io_uring-20250523	2025-05-26 12:13:22 -07:00
ioam6.h	…
ioam6_genl.h	…
ioam6_iptunnel.h	…
ioctl.h	…
iommufd.h	iommufd: Fix iommu_vevent_header tables markup	2025-03-28 10:07:23 -03:00
ioprio.h	…
ip.h	include: uapi: protocol number and packet structs for AGGFRAG in ESP	2024-12-05 10:01:09 +01:00
ip6_tunnel.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
ip_vs.h	…
ipc.h	…
ipmi.h	…
ipmi_bmc.h	…
ipmi_msgdefs.h	…
ipmi_ssif_bmc.h	…
ipsec.h	xfrm: add generic iptfs defines and functionality	2024-12-05 10:01:28 +01:00
ipv6.h	…
ipv6_route.h	…
irqnr.h	…
iso_fs.h	…
isst_if.h	platform/x86: ISST: Support SST-PP revision 2	2025-05-08 16:04:06 +03:00
ivtv.h	…
ivtvfb.h	…
jffs2.h	…
joystick.h	…
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	…
kfd_ioctl.h	drm/amdkfd: add smi events for process start and end	2025-04-11 17:01:25 -04:00
kfd_sysfs.h	drm/amdkfd: flag per-sdma queue reset supported to user space	2025-03-05 10:47:33 -05:00
kvm.h	KVM: TDX: Exit to userspace for GetTdVmCallInfo	2025-06-20 13:55:47 -04:00
kvm_para.h	…
l2tp.h	…
landlock.h	landlock: Update log documentation	2025-04-17 11:09:10 +02:00
libc-compat.h	…
limits.h	…
lirc.h	…
llc.h	…
loadpin.h	…
lockd_netlink.h	lockd: add netlink control interface	2025-03-10 09:10:53 -04:00
loop.h	…
lp.h	…
lsm.h	…
lwtunnel.h	…
magic.h	…
major.h	…
map_to_7segment.h	…
map_to_14segment.h	…
matroxfb.h	…
max2175.h	…
mctp.h	…
mdio.h	net: mdio: add definition for clock stop capable bit	2025-01-16 17:22:59 -08:00
media-bus-format.h	media: uapi: Add MEDIA_BUS_FMT_RGB101010_1X7X5_{SPWG, JEIDA}	2024-11-05 13:26:42 +02:00
media.h	…
mei.h	…
mei_uuid.h	…
membarrier.h	…
memfd.h	…
mempolicy.h	…
mii.h	…
minix_fs.h	…
mman.h	…
mmtimer.h	…
module.h	…
mount.h	Merge patch series "fs: allow changing idmappings"	2025-02-12 12:12:34 +01:00
mpls.h	…
mpls_iptunnel.h	…
mptcp.h	…
mptcp_pm.h	netlink: specs: mptcp: replace underscores with dashes in names	2025-06-25 15:36:28 -07:00
mqueue.h	…
mroute.h	…
mroute6.h	…
mrp_bridge.h	…
msdos_fs.h	…
msg.h	…
mshv.h	Drivers: hv: Introduce mshv_root module to expose /dev/mshv to VMMs	2025-03-21 18:24:22 +00:00
mtio.h	…
nbd-netlink.h	…
nbd.h	…
ncsi.h	…
ndctl.h	…
neighbour.h	neighbor: Add NTF_EXT_VALIDATED flag for externally validated entries	2025-06-30 18:14:23 -07:00
net.h	…
net_dropmon.h	uapi: net_dropmon: drop unused is_drop_point_hw macro	2025-06-25 15:35:20 -07:00
net_namespace.h	…
net_shaper.h	netlink: spec: add shaper introspection support	2024-10-10 08:30:22 -07:00
net_tstamp.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
netconf.h	…
netdev.h	net: devmem: TCP tx netlink api	2025-05-13 11:12:48 +02:00
netdevice.h	…
netfilter.h	…
netfilter_arp.h	…
netfilter_bridge.h	…
netfilter_ipv4.h	…
netfilter_ipv6.h	…
netlink.h	…
netlink_diag.h	net: add UAPI to the header guard in various network headers	2025-04-17 19:04:50 -07:00
netrom.h	…
nexthop.h	…
nfc.h	net: nfc: Propagate ISO14443 type A target ATS to userspace via netlink	2024-11-07 10:21:58 +01:00
nfs.h	…
nfs2.h	…
nfs3.h	…
nfs4.h	nfsd: rework NFS4_SHARE_WANT_* flag handling	2025-01-21 15:30:01 -05:00
nfs4_mount.h	…
nfs_fs.h	…
nfs_idmap.h	…
nfs_mount.h	…
nfsacl.h	…
nfsd_netlink.h	…
nilfs2_api.h	…
nilfs2_ondisk.h	nilfs2: Mark on-disk strings as nonstring	2025-02-28 11:51:32 -08:00
nitro_enclaves.h	…
nl80211-vnd-intel.h	…
nl80211.h	wifi: cfg80211: Report per-radio RTS threshold to userspace	2025-06-24 15:19:27 +02:00
npcm-video.h	…
nsfs.h	…
nsm.h	…
ntsync.h	ntsync: Introduce alertable waits.	2025-01-08 13:18:11 +01:00
nubus.h	…
nvme_ioctl.h	…
nvram.h	…
omap3isp.h	…
omapfb.h	…
oom.h	…
openat2.h	…
openvswitch.h	net: openvswitch: allow providing upcall pid for the 'execute' command	2025-07-07 14:30:39 -07:00
ovpn.h	ovpn: add basic netlink support	2025-04-17 12:30:02 +02:00
packet_diag.h	…
papr_pdsm.h	…
param.h	…
parport.h	…
patchkey.h	…
pci.h	…
pci_regs.h	PCI: Add lane equalization register offsets	2025-04-19 19:42:43 +05:30
pcitest.h	misc: pci_endpoint_test: Add support for PCITEST_IRQ_TYPE_AUTO	2025-03-26 06:11:54 +00:00
perf_event.h	perf/uapi: Clean up <uapi/linux/perf_event.h> a bit	2025-05-22 11:03:41 +02:00
personality.h	…
pfkeyv2.h	…
pfrut.h	…
pg.h	…
phantom.h	…
phonet.h	…
pidfd.h	pidfs, coredump: add PIDFD_INFO_COREDUMP	2025-05-21 13:59:12 +02:00
pkt_cls.h	net: sched: uapi: add more sanely named duplicate defines	2025-05-15 11:44:29 -07:00
pkt_sched.h	net: sched: uapi: add more sanely named duplicate defines	2025-05-15 11:44:29 -07:00
pktcdvd.h	…
pmu.h	…
poll.h	…
posix_acl.h	…
posix_acl_xattr.h	…
posix_types.h	…
ppdev.h	…
ppp-comp.h	…
ppp-ioctl.h	…
ppp_defs.h	…
pps.h	…
pps_gen.h	drivers pps: add PPS generators support	2025-01-08 13:18:09 +01:00
pr.h	…
prctl.h	futex: Allow to make the private hash immutable	2025-05-03 12:02:08 +02:00
psample.h	…
psci.h	firmware/psci: Add definitions for PSCI v1.3 specification	2024-10-24 16:30:33 -07:00
psp-dbc.h	…
psp-sev.h	crypto: ccp - Fix uAPI definitions of PSP errors	2025-03-15 16:21:22 +08:00
ptp_clock.h	…
ptrace.h	ptrace: introduce PTRACE_SET_SYSCALL_INFO request	2025-05-11 17:48:15 -07:00
qemu_fw_cfg.h	…
qnx4_fs.h	…
qnxtypes.h	…
qrtr.h	…
quota.h	…
radeonfb.h	…
random.h	…
rds.h	…
reboot.h	…
remoteproc_cdev.h	…
resource.h	…
rfkill.h	…
rio_cm_cdev.h	…
rio_mport_cdev.h	…
rkisp1-config.h	media: uapi: rkisp1-config: Fix typo in extensible params example	2025-02-21 10:33:01 +01:00
romfs_fs.h	…
rose.h	…
route.h	…
rpl.h	…
rpl_iptunnel.h	…
rpmsg.h	…
rpmsg_types.h	…
rseq.h	…
rtc.h	…
rtnetlink.h	Add OVN to `rtnetlink.h`	2025-02-25 18:14:03 -08:00
rxrpc.h	rxrpc: Add the security index for yfs-rxgk	2025-04-14 17:36:41 -07:00
scc.h	…
sched.h	…
scif_ioctl.h	…
screen_info.h	…
sctp.h	…
seccomp.h	…
securebits.h	security: Add EXEC_RESTRICT_FILE and EXEC_DENY_INTERACTIVE securebits	2024-12-18 17:00:29 -08:00
sed-opal.h	block: sed-opal: add ioctl IOC_OPAL_SET_SID_PW	2024-10-22 08:16:40 -06:00
seg6.h	…
seg6_genl.h	…
seg6_hmac.h	…
seg6_iptunnel.h	…
seg6_local.h	…
selinux_netlink.h	…
sem.h	…
serial.h	…
serial_core.h	…
serial_reg.h	…
serio.h	…
sev-guest.h	…
shm.h	…
signal.h	…
signalfd.h	…
smc.h	…
smc_diag.h	…
smiapp.h	…
snmp.h	tcp: add LINUX_MIB_PAWS_TW_REJECTED counter	2025-04-10 18:29:26 -07:00
sock_diag.h	…
socket.h	…
sockios.h	…
sonet.h	…
sonypi.h	…
sound.h	…
soundcard.h	…
stat.h	fs: add atomic write unit max opt to statx	2025-05-07 14:25:30 -07:00
stddef.h	uapi: stddef.h: Introduce __kernel_nonstring	2025-02-28 11:51:32 -08:00
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	taskstats: fix struct taskstats breaks backward compatibility since version 15	2025-05-20 22:49:39 -07:00
tcp.h	tcp: fastopen: pass TFO child indication through getsockopt	2025-04-24 18:21:04 -07:00
tcp_metrics.h	…
tdx-guest.h	…
tee.h	…
termios.h	…
thermal.h	thermal/netlink: Prevent userspace segmentation fault by adjusting UAPI header	2025-02-11 20:53:14 +01:00
thp7312.h	…
time.h	…
time_types.h	…
timerfd.h	…
times.h	…
timex.h	…
tiocl.h	vt: bracketed paste support	2025-05-21 13:41:03 +02:00
tipc.h	…
tipc_config.h	…
tipc_netlink.h	…
tipc_sockets_diag.h	…
tls.h	…
toshiba.h	…
tps6594_pfsm.h	…
trace_mmap.h	…
tty.h	…
tty_flags.h	…
types.h	…
ublk_cmd.h	ublk: update UBLK_F_SUPPORT_ZERO_COPY comment in UAPI header	2025-06-24 20:45:31 -06:00
udf_fs_i.h	…
udmabuf.h	…
udp.h	ovpn: introduce the ovpn_socket object	2025-04-17 12:30:02 +02:00
uhid.h	…
uinput.h	…
uio.h	…
uleds.h	…
ultrasound.h	…
um_timetravel.h	…
un.h	…
unistd.h	…
unix_diag.h	…
usbdevice_fs.h	…
usbip.h	…
user_events.h	…
userfaultfd.h	…
userio.h	…
utime.h	…
utsname.h	…
uuid.h	…
uvcvideo.h	media: uvcvideo: implement UVC v1.5 ROI	2025-03-03 18:23:36 +01:00
v4l2-common.h	…
v4l2-controls.h	media: uvcvideo: implement UVC v1.5 ROI	2025-03-03 18:23:36 +01:00
v4l2-dv-timings.h	media: replace obsolete hans.verkuil@cisco.com alias	2024-11-08 13:38:09 +01:00
v4l2-mediabus.h	…
v4l2-subdev.h	…
vbox_err.h	…
vbox_vmmdev_types.h	…
vboxguest.h	…
vdpa.h	…
vduse.h	vduse: relicense under GPL-2.0 OR BSD-3-Clause	2025-01-08 06:37:13 -05:00
vesa.h	…
veth.h	…
vfio.h	iommufd 6.15 merge window pull	2025-04-01 18:03:46 -07:00
vfio_ccw.h	…
vfio_zdev.h	…
vhost.h	vhost: fix VHOST_*_OWNER documentation	2025-04-14 09:51:31 -04:00
vhost_types.h	…
videodev2.h	media: Add C3ISP_PARAMS and C3ISP_STATS meta formats	2025-05-09 12:08:37 +02:00
virtio_9p.h	…
virtio_balloon.h	…
virtio_blk.h	…
virtio_bt.h	…
virtio_config.h	…
virtio_console.h	…
virtio_crypto.h	crypto: virtio - Drop sign/verify operations	2024-10-05 13:22:04 +08:00
virtio_fs.h	…
virtio_gpio.h	…
virtio_gpu.h	drm/virtio: Add capset definitions to UAPI	2025-03-28 04:53:51 +03:00
virtio_i2c.h	…
virtio_ids.h	…
virtio_input.h	…
virtio_iommu.h	…
virtio_mem.h	…
virtio_mmio.h	…
virtio_net.h	virtio_net: Split struct virtio_net_rss_config	2025-03-25 09:30:21 -07:00
virtio_pci.h	virtio_pci: Use self group type for cap commands	2025-04-14 09:51:31 -04:00
virtio_pcidev.h	…
virtio_pmem.h	…
virtio_ring.h	…
virtio_rng.h	…
virtio_rtc.h	virtio_rtc: Add RTC class driver	2025-05-27 10:27:54 -04:00
virtio_scmi.h	…
virtio_scsi.h	…
virtio_snd.h	virtio_snd.h: clarify that `controls` depends on VIRTIO_SND_F_CTLS	2025-02-14 12:58:02 +01:00
virtio_types.h	…
virtio_vsock.h	…
vm_sockets.h	vsock/uapi: fix linux/vm_sockets.h userspace compilation errors	2025-06-24 17:12:59 -07:00
vm_sockets_diag.h	…
vmclock-abi.h	ptp: Add support for the AMZNC10C 'vmclock' device	2024-10-09 12:16:18 +01:00
vmcore.h	…
vsockmon.h	…
vt.h	vt: add VT_GETCONSIZECSRPOS to retrieve console size and cursor position	2025-05-21 13:41:03 +02:00
vtpm_proxy.h	…
wait.h	…
watch_queue.h	…
watchdog.h	…
wireguard.h	wireguard: allowedips: add WGALLOWEDIP_F_REMOVE_ME flag	2025-05-27 09:06:19 +02:00
wireless.h	…
wmi.h	…
wwan.h	…
x25.h	…
xattr.h	fs/xattr: bpf: Introduce security.bpf. xattr name prefix	2025-02-13 19:35:31 -08:00
xdp_diag.h	…
xfrm.h	xfrm: netlink: add config (netlink) options	2024-12-05 10:01:15 +01:00
xilinx-v4l2-controls.h	…
zorro.h	…
zorro_ids.h	…