linux-kernelorg-stable/include/uapi/linux
Pavel Begunkov 705d2ac7b2 io_uring/zcrx: allow synchronous buffer return
Returning buffers via a ring is performant and convenient, but it
becomes a problem when/if the user misconfigured the ring size and it
becomes full. Add a synchronous way to return buffers back to the page
pool via a new register opcode. It's supposed to be a reliable slow
path for refilling.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-16 12:37:21 -06:00
..
android
byteorder
caif
can
cifs
counter
dvb
genwqe
hdlc
hsi
iio
io_uring io_uring: introduce io_uring querying 2025-09-08 08:06:37 -06:00
isdn
media media: pisp_be: Use clamp() and define max sizes 2025-07-03 09:25:01 +02:00
misc
mmc
netfilter netfilter: nfnetlink_hook: Dump flowtable info 2025-07-25 18:40:01 +02:00
netfilter_arp
netfilter_bridge
netfilter_ipv4
netfilter_ipv6
nfsd
raid md: keep recovery_cp in mdp_superblock_s 2025-08-16 08:47:38 +08:00
sched
spi
sunrpc
surface_aggregator
tc_act
tc_ematch
usb
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
auto_dev-ioctl.h
auto_fs.h
auto_fs4.h
auxvec.h
ax25.h
batadv_packet.h
batman_adv.h
baycom.h
bcm933xx_hcs.h
bfs_fs.h
binfmts.h
bits.h uapi: bitops: use UAPI-safe variant of BITS_PER_LONG again (2) 2025-07-08 10:23:13 -04:00
blk-crypto.h
blkdev.h
blkpg.h
blktrace_api.h
blkzoned.h
bpf.h bpf: Add struct bpf_token_info 2025-07-16 18:38:05 -07:00
bpf_common.h
bpf_perf_event.h
bpqether.h
bsg.h
bt-bmc.h
btf.h
btrfs.h btrfs: defrag: add flag to force no-compression 2025-07-22 01:13:03 +02:00
btrfs_tree.h
cachefiles.h
can.h
capability.h uapi: fix broken link in linux/capability.h 2025-07-04 19:21:53 -05:00
capi.h
cciss_defs.h
cciss_ioctl.h
ccs.h
cdrom.h
cec-funcs.h
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
coredump.h coredump: allow for flexible coredump handling 2025-06-12 14:00:18 +02:00
coresight-stm.h
counter.h
cramfs_fs.h
cryptouser.h
cuda.h
cxl_mem.h
cyclades.h
cycx_cfm.h
dcbnl.h
dccp.h
devlink.h devlink: Fix excessive stack usage in rate TC bandwidth parsing 2025-07-23 17:07:35 -07:00
dlm.h
dlm_device.h
dlm_plock.h
dlmconstants.h
dm-ioctl.h
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
errno.h
errqueue.h
erspan.h
ethtool.h ethtool: mark ETHER_FLOW as usable for Rx hash 2025-07-10 17:57:49 -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 ethtool: rss: support removing contexts via Netlink 2025-07-21 18:21:19 -07:00
eventfd.h
eventpoll.h
exfat.h
ext4.h
f2fs.h
fadvise.h
falloc.h fs: introduce FALLOC_FL_WRITE_ZEROES to fallocate 2025-06-23 12:45:13 +02:00
fanotify.h
fb.h
fcntl.h uapi/fcntl: add FD_PIDFS_ROOT 2025-06-24 16:58:42 +02:00
fd.h
fdreg.h
fib_rules.h
fiemap.h
filter.h
firewire-cdev.h
firewire-constants.h
fou.h
fpga-dfl.h
fs.h vfs-6.17-rc1.fileattr 2025-07-28 15:24:14 -07:00
fscrypt.h
fsi.h
fsl_hypervisor.h
fsl_mc.h
fsmap.h
fsverity.h
fuse.h
futex.h
gameport.h
gen_stats.h
genetlink.h
gfs2_ondisk.h
gpio.h
gsmmux.h
gtp.h
handshake.h net/handshake: Add new parameter 'HANDSHAKE_A_ACCEPT_KEYRING' 2025-07-08 15:31:44 +02:00
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 i2c: Clarify behavior of I2C_M_RD flag 2025-07-14 09:15:58 +02:00
i2o-dev.h
i8k.h
icmp.h
icmpv6.h
idxd.h
if.h
if_addr.h
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h
if_bonding.h
if_bridge.h
if_eql.h
if_ether.h
if_fc.h
if_fddi.h
if_hippi.h
if_infiniband.h
if_link.h net: bonding: add broadcast_neighbor netlink option 2025-07-08 10:59:42 +02:00
if_ltalk.h
if_macsec.h
if_packet.h
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h
if_slip.h
if_team.h
if_tun.h tun: enable gso over UDP tunnel support. 2025-07-08 18:07:26 +02:00
if_tunnel.h
if_vlan.h
if_x25.h
if_xdp.h net: xsk: introduce XDP_MAX_TX_SKB_BUDGET setsockopt 2025-07-10 14:48:29 +02:00
ife.h
igmp.h
ila.h
in.h
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 Input: add keycode for performance mode key 2025-08-05 13:51:10 -07:00
input.h HID: core: Add bus define for SoundWire bus 2025-06-20 11:52:06 +01:00
io_uring.h io_uring/zcrx: allow synchronous buffer return 2025-09-16 12:37:21 -06:00
ioam6.h
ioam6_genl.h
ioam6_iptunnel.h
ioctl.h
iommufd.h iommufd: Destroy vdevice on idevice destroy 2025-07-18 17:33:08 -03:00
ioprio.h
ip.h
ip6_tunnel.h
ip_vs.h
ipc.h
ipmi.h
ipmi_bmc.h
ipmi_msgdefs.h
ipmi_ssif_bmc.h
ipsec.h
ipv6.h ipv6: add `force_forwarding` sysctl to enable per-interface forwarding 2025-07-25 13:06:19 -07:00
ipv6_route.h
irqnr.h
iso_fs.h
isst_if.h
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 kexec: enable CMA based contiguous allocation 2025-08-02 12:01:38 -07:00
keyboard.h
keyctl.h
kfd_ioctl.h
kfd_sysfs.h
kvm.h KVM/arm64 changes for 6.17, round #1 2025-07-29 12:27:40 -04:00
kvm_para.h
l2tp.h
landlock.h
libc-compat.h
limits.h
lirc.h
llc.h
loadpin.h
lockd_netlink.h
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 net: mctp: add gateway routing support 2025-07-08 12:39:24 +02:00
mdio.h
media-bus-format.h
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
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
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
net_tstamp.h
netconf.h ipv6: add `force_forwarding` sysctl to enable per-interface forwarding 2025-07-25 13:06:19 -07:00
netdev.h net: define an enum for the napi threaded state 2025-07-24 18:34:55 -07:00
netdevice.h
netfilter.h
netfilter_arp.h
netfilter_bridge.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h
netlink_diag.h
netrom.h
nexthop.h
nfc.h
nfs.h
nfs2.h
nfs3.h
nfs4.h
nfs4_mount.h
nfs_fs.h
nfs_idmap.h
nfs_mount.h
nfsacl.h
nfsd_netlink.h
nilfs2_api.h
nilfs2_ondisk.h
nitro_enclaves.h
nl80211-vnd-intel.h
nl80211.h wifi: cfg80211: support configuring an S1G short beaconing BSS 2025-07-18 14:14:43 +02:00
npcm-video.h
nsfs.h mntns: use stable inode number for initial mount ns 2025-06-11 11:59:08 +02:00
nsm.h
ntsync.h
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
packet_diag.h
papr_pdsm.h
param.h
parport.h
patchkey.h
pci.h
pci_regs.h PCI/IOV: Restore VF resizable BAR state after reset 2025-07-14 14:58:13 -05:00
pcitest.h misc: pci_endpoint_test: Add doorbell test case 2025-07-24 16:51:46 -05:00
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 ACPI: pfr_update: Fix the driver update version check 2025-08-20 15:30:36 +02:00
pg.h
phantom.h
phonet.h
pidfd.h uapi/fcntl: mark range as reserved 2025-06-24 15:50:06 +02:00
pkt_cls.h
pkt_sched.h sched: Dump configuration and statistics of dualpi2 qdisc 2025-07-23 17:52:07 -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
pr.h
prctl.h arm64 updates for 6.17: 2025-07-29 20:21:54 -07:00
psample.h
psci.h
psp-dbc.h
psp-sev.h
ptp_clock.h
ptrace.h
pwm.h pwm: Add support for pwmchip devices for faster and easier userspace access 2025-07-07 08:39:33 +02:00
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: rockchip: rkisp1: Add support for Wide Dynamic Range 2025-06-18 09:21:58 +02:00
romfs_fs.h
rose.h
route.h
rpl.h
rpl_iptunnel.h
rpmsg.h
rpmsg_types.h
rseq.h
rtc.h
rtnetlink.h
rxrpc.h
scc.h
sched.h
scif_ioctl.h
screen_info.h
sctp.h
seccomp.h
securebits.h
sed-opal.h
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_BEYOND_WINDOW 2025-07-14 18:41:42 -07:00
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 ipv6: add `force_forwarding` sysctl to enable per-interface forwarding 2025-07-25 13:06:19 -07:00
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_metrics.h
tdx-guest.h
tee.h
termios.h
thermal.h
thp7312.h
time.h time: Introduce auxiliary POSIX clocks 2025-06-19 14:28:22 +02:00
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: allow UBLK_IO_(UN)REGISTER_IO_BUF on any task 2025-06-30 20:13:42 -06:00
udf_fs_i.h
udmabuf.h
udp.h
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
v4l2-common.h
v4l2-controls.h media: rkisp1: Add RKISP1_CID_SUPPORTED_PARAMS_BLOCKS control 2025-06-18 09:21:58 +02:00
v4l2-dv-timings.h
v4l2-mediabus.h
v4l2-subdev.h
vbox_err.h
vbox_vmmdev_types.h
vboxguest.h
vdpa.h
vduse.h
vesa.h
veth.h
vfio.h vfio/pci: Do vf_token checks for VFIO_DEVICE_BIND_IOMMUFD 2025-08-05 15:41:14 -06:00
vfio_ccw.h
vfio_zdev.h
vhost.h virtio, vhost: features, fixes 2025-08-01 14:17:48 -07:00
vhost_types.h vhost-net: allow configuring extended features 2025-07-08 18:05:23 +02:00
videodev2.h media: uvcvideo: Introduce V4L2_META_FMT_UVC_MSXU_1_5 2025-07-11 19:27:30 +02:00
virtio_9p.h
virtio_balloon.h
virtio_blk.h
virtio_bt.h
virtio_config.h
virtio_console.h
virtio_crypto.h
virtio_fs.h
virtio_gpio.h
virtio_gpu.h
virtio_i2c.h
virtio_ids.h
virtio_input.h
virtio_iommu.h
virtio_mem.h
virtio_mmio.h
virtio_net.h net: implement virtio helpers to handle UDP GSO tunneling. 2025-07-08 18:05:47 +02:00
virtio_pci.h
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_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
vmcore.h
vsockmon.h
vt.h Revert "tty: vt: use _IO() to define ioctl numbers" 2025-08-01 10:42:22 +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
xdp_diag.h
xfrm.h
xilinx-v4l2-controls.h
zorro.h
zorro_ids.h