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Linus Torvalds c3018a2c6a for-6.17/io_uring-20250728 
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Merge tag 'for-6.17/io_uring-20250728' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - Optimization to avoid reference counts on non-cloned registered
   buffers. This is how these buffers were handled prior to having
   cloning support, and we can still use that approach as long as the
   buffers haven't been cloned to another ring.

 - Cleanup and improvement for uring_cmd, where btrfs was the only user
   of storing allocated data for the lifetime of the uring_cmd. Clean
   that up so we can get rid of the need to do that.

 - Avoid unnecessary memory copies in uring_cmd usage. This is
   particularly important as a lot of uring_cmd usage necessitates the
   use of 128b SQEs.

 - A few updates for recv multishot, where it's now possible to add
   fairness limits for limiting how much is transferred for each retry
   loop. Additionally, recv multishot now supports an overall cap as
   well, where once reached the multishot recv will terminate. The
   latter is useful for buffer management and juggling many recv streams
   at the same time.

 - Add support for returning the TX timestamps via a new socket command.
   This feature can work in either singleshot or multishot mode, where
   the latter triggers a completion whenever new timestamps are
   available. This is an alternative to using the existing error queue.

 - Add support for an io_uring "mock" file, which is the start of being
   able to do 100% targeted testing in terms of exercising io_uring
   request handling. The idea is to have a file type that can be
   anything the tester would like, and behave exactly how you want it to
   behave in terms of hitting the code paths you want.

 - Improve zcrx by using sgtables to de-duplicate and improve dma
   address handling.

 - Prep work for supporting larger pages for zcrx.

 - Various little improvements and fixes.

* tag 'for-6.17/io_uring-20250728' of git://git.kernel.dk/linux: (42 commits)
  io_uring/zcrx: fix leaking pages on sg init fail
  io_uring/zcrx: don't leak pages on account failure
  io_uring/zcrx: fix null ifq on area destruction
  io_uring: fix breakage in EXPERT menu
  io_uring/cmd: remove struct io_uring_cmd_data
  btrfs/ioctl: store btrfs_uring_encoded_data in io_btrfs_cmd
  io_uring/cmd: introduce IORING_URING_CMD_REISSUE flag
  io_uring/zcrx: account area memory
  io_uring: export io_[un]account_mem
  io_uring/net: Support multishot receive len cap
  io_uring: deduplicate wakeup handling
  io_uring/net: cast min_not_zero() type
  io_uring/poll: cleanup apoll freeing
  io_uring/net: allow multishot receive per-invocation cap
  io_uring/net: move io_sr_msg->retry_flags to io_sr_msg->flags
  io_uring/net: use passed in 'len' in io_recv_buf_select()
  io_uring/zcrx: prepare fallback for larger pages
  io_uring/zcrx: assert area type in io_zcrx_iov_page
  io_uring/zcrx: allocate sgtable for umem areas
  io_uring/zcrx: introduce io_populate_area_dma
  ...
2025-07-28 16:30:12 -07:00
..
9p netfs, 9p: Implement helpers for new write code 2024-05-01 18:07:37 +01:00
bluetooth Bluetooth: hci_dev: replace 'quirks' integer by 'quirk_flags' bitmap 2025-07-16 15:37:53 -04:00
caif caif: Remove unused cfsrvl_getphyid 2024-10-08 15:33:49 -07:00
iucv net: reformat kdoc return statements 2024-12-09 14:44:59 -08:00
libeth libeth: move idpf_rx_csum_decoded and idpf_rx_extracted 2025-02-14 10:58:08 -08:00
mana RDMA v6.16 merge window pull request 2025-05-30 10:18:56 -07:00
netfilter netfilter: nf_conntrack: fix crash due to removal of uninitialised entry 2025-07-17 11:23:33 +02:00
netns ipv6: Protect fib6_link_table() with spinlock. 2025-04-24 09:29:56 +02:00
nfc net: nfc: Propagate ISO14443 type A target ATS to userspace via netlink 2024-11-07 10:21:58 +01:00
page_pool eth: bnxt: add support rx side device memory TCP 2025-04-16 18:17:57 -07:00
phonet phonet: Convert phonet_routes.lock to spinlock_t. 2024-10-24 16:03:40 +02:00
sctp sctp: mark sctp_do_peeloff static 2025-05-27 18:18:55 -07:00
tc_act net/sched: Retire ipt action 2024-01-02 12:41:16 +00:00
6lowpan.h
act_api.h net/sched: act_api: unexport tcf_action_dump_1() 2024-10-23 11:43:47 +02:00
addrconf.h ipv6: Add __in6_dev_get_rtnl_net(). 2025-01-20 12:16:04 -08:00
af_ieee802154.h
af_rxrpc.h rxrpc: Remove deadcode 2025-04-24 17:03:45 -07:00
af_unix.h unix: fix up for "apparmor: add fine grained af_unix mediation" 2025-03-26 09:31:18 -07:00
af_vsock.h vsock: fix vsock_proto declaration 2025-07-07 16:55:54 -07:00
ah.h
amt.h
arp.h
atmclip.h
ax25.h ax25: Remove broken autobind 2025-03-24 10:26:53 +00:00
ax88796.h
bareudp.h
bond_3ad.h bonding: Correct spelling in headers 2024-08-26 09:37:22 -07:00
bond_alb.h bonding: Correct spelling in headers 2024-08-26 09:37:22 -07:00
bond_options.h bonding: add ns target multicast address to slave device 2024-11-14 11:16:28 +01:00
bonding.h bonding: check xdp prog when set bond mode 2025-03-25 08:00:09 -07:00
bpf_sk_storage.h
busy_poll.h net: gro: decouple GRO from the NAPI layer 2025-02-27 14:03:14 +01:00
calipso.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cfg80211-wext.h
cfg80211.h wifi: cfg80211: remove scan request n_channels counted_by 2025-07-15 10:27:21 +02:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-03-06 21:01:26 +01:00
checksum.h net: Fix checksum update for ILA adj-transport 2025-05-30 19:53:51 -07:00
cipso_ipv4.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cls_cgroup.h
codel_impl.h
codel_qdisc.h
codel.h codel: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
compat.h
datalink.h net: datalink: Remove unused declarations 2023-07-27 17:17:32 -07:00
dcbevent.h
dcbnl.h
devlink.h devlink: avoid param type value translations 2025-05-06 18:21:11 -07:00
dropreason-core.h net: neigh: use kfree_skb_reason() in neigh_resolve_output() and neigh_connected_output() 2025-05-26 10:03:13 +01:00
dropreason.h wifi: mac80211: Drop cooked monitor support 2025-02-11 11:58:17 +01:00
dsa_stubs.h net: dsa: Use conduit and user terms 2023-10-24 13:08:14 -07:00
dsa.h net: dsa: convert to ndo_hwtstamp_get() and ndo_hwtstamp_set() 2025-05-09 16:34:09 -07:00
dscp.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
dsfield.h
dst_cache.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
dst_metadata.h net: Add options as a flexible array to struct ip_tunnel_info 2025-02-20 13:17:16 -08:00
dst_ops.h net: fix __dst_negative_advice() race 2024-05-29 17:34:49 -07:00
dst.h net: reformat kdoc return statements 2024-12-09 14:44:59 -08:00
eee.h net: simplify eeecfg_mac_can_tx_lpi 2024-11-13 18:49:50 -08:00
erspan.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
esp.h
espintcp.h inet: preserve const qualifier in inet_csk() 2024-04-01 21:27:08 -07:00
ethoc.h
failover.h
fib_notifier.h net: do not acquire rtnl in fib_seq_sum() 2024-10-11 15:35:05 -07:00
fib_rules.h net: fib_rules: Fix iif / oif matching on L3 master device 2025-04-15 17:54:56 -07:00
firewire.h
flow_dissector.h flow_dissector: cleanup FLOW_DISSECTOR_KEY_ENC_FLAGS 2024-07-15 09:14:39 -07:00
flow_offload.h net: sched: propagate "skip_sw" flag to struct flow_cls_common_offload 2024-10-30 17:33:53 -07:00
flow.h ip: load balance tcp connections to single dst addr and port 2025-04-29 16:22:25 +02:00
fou.h
fq_impl.h
fq.h net: fq: Remove unused typedef fq_flow_get_default_t 2023-08-08 15:58:23 -07:00
garp.h
gen_stats.h
genetlink.h net: reformat kdoc return statements 2024-12-09 14:44:59 -08:00
geneve.h
gre.h ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
gro_cells.h
gro.h net: gro: expose GRO init/cleanup to use outside of NAPI 2025-02-27 14:03:14 +01:00
gso.h net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
gtp.h gtp: properly parse extension headers 2024-05-07 01:35:55 +02:00
gue.h
handshake.h net/handshake: Add helpers for parsing incoming TLS Alerts 2023-07-28 14:07:59 -07:00
hotdata.h net: introduce per netns packet chains 2025-03-24 13:58:22 -07:00
hwbm.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
icmp.h
ieee8021q.h net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
ieee80211_radiotap.h wireless fixes for v6.12-rc5 2024-10-25 10:44:41 +01:00
ieee802154_netdev.h mac802154: Handle association requests from peers 2023-11-20 11:43:03 +01:00
if_inet6.h ipv6: anycast: complete RCU handling of struct ifacaddr6 2024-02-26 18:40:34 -08:00
ife.h
inet6_connection_sock.h tcp/dccp: Remove inet_connection_sock_af_ops.addr2sockaddr(). 2025-03-24 12:10:13 -07:00
inet6_hashtables.h tcp: convert to dev_net_rcu() 2025-03-03 15:44:19 -08:00
inet_common.h net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
inet_connection_sock.h tcp/dccp: remove icsk->icsk_ack.timeout 2025-03-25 10:34:33 -07:00
inet_dscp.h
inet_ecn.h
inet_frag.h inet: frags: change inet_frag_kill() to defer refcount updates 2025-03-18 13:18:36 +01:00
inet_hashtables.h tcp: Rename tcp_or_dccp_get_hashinfo(). 2025-04-11 18:58:11 -07:00
inet_sock.h sctp: Prepare sctp_v4_get_dst() to dscp_t conversion. 2025-01-06 13:49:38 -08:00
inet_timewait_sock.h tcp: Measure TIME-WAIT reuse delay with millisecond precision 2024-12-11 20:17:33 -08:00
inetpeer.h inetpeer: remove create argument of inet_getpeer() 2024-12-17 19:37:00 -08:00
ioam6.h net: ioam6: multicast event 2024-02-28 11:19:41 +00:00
ip6_checksum.h
ip6_fib.h ipv6: Defer fib6_purge_rt() in fib6_add_rt2node() to fib6_add(). 2025-04-24 09:29:56 +02:00
ip6_route.h ipv6: fix source address selection with route leak 2024-07-14 07:34:16 -07:00
ip6_tunnel.h ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
ip_fib.h ipv4: prefer multipath nexthop that matches source address 2025-04-29 16:22:25 +02:00
ip_tunnels.h ipv4: ip_tunnel: Convert ip_tunnel_delete_nets() callers to ->exit_rtnl(). 2025-04-14 17:08:42 -07:00
ip_vs.h
ip.h net: use netif_disable_lro in ipv6_add_dev 2025-04-03 15:32:08 -07:00
ipcomp.h xfrm: ipcomp: Use crypto_acomp interface 2025-03-21 17:36:49 +08:00
ipconfig.h
ipv6_frag.h inet: frags: change inet_frag_kill() to defer refcount updates 2025-03-18 13:18:36 +01:00
ipv6_stubs.h ipv6: udp: constify 'struct net' parameter of socket lookups 2024-08-05 16:27:26 -07:00
ipv6.h ipv6: fix _DEVADD() and _DEVUPD() macros 2025-03-25 07:31:24 -07:00
iw_handler.h Revert "wifi: cfg80211: unexport wireless_nlevent_flush()" 2024-10-09 08:53:01 +02:00
kcm.h kcm: Serialise kcm_sendmsg() for the same socket. 2024-08-19 18:36:12 -07:00
l3mdev.h net: fib_rules: Fix iif / oif matching on L3 master device 2025-04-15 17:54:56 -07:00
lag.h
lapb.h net: lapb: increase LAPB_HEADER_LEN 2024-12-06 17:43:08 -08:00
llc_c_ac.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_ev.h net: llc: Remove unused function declarations 2023-08-04 15:33:17 -07:00
llc_c_st.h llc: Constify struct llc_conn_state_trans 2024-07-15 08:51:01 -07:00
llc_conn.h llc: Check netns in llc_estab_match() and llc_listener_match(). 2023-07-20 10:46:28 +02:00
llc_if.h
llc_pdu.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h llc: Constify struct llc_sap_state_trans 2024-07-15 08:51:19 -07:00
llc_sap.h
llc.h
lwtunnel.h inet: Remove rtnl_is_held arg of lwtunnel_valid_encap_type(_attr)?(). 2025-05-20 19:18:24 -07:00
mac80211.h wifi: mac80211: Update MCS15 support in link_conf 2025-05-09 00:05:11 +02:00
mac802154.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
macsec.h net: macsec: Add endianness annotations in salt struct 2025-01-20 12:20:42 +00:00
mctp.h net: mctp: Remove unnecessary cast in mctp_cb 2025-03-21 18:18:12 +01:00
mctpdevice.h net: mctp: Expose transport binding identifier via IFLA attribute 2024-11-09 09:04:54 -08:00
mip6.h
mld.h
mpls_iptunnel.h
mpls.h
mptcp.h mptcp: sched: remove mptcp_sched_data 2025-04-15 08:21:46 -07:00
mrp.h
ncsi.h
ndisc.h ipv6: eliminate ndisc_ops_is_useropt() 2024-08-12 17:23:57 -07:00
neighbour_tables.h neighbour: Create netdev->neighbour association 2024-11-09 13:22:57 -08:00
neighbour.h neighbour: Create netdev->neighbour association 2024-11-09 13:22:57 -08:00
net_debug.h Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
net_failover.h
net_namespace.h net: Remove ->exit_batch_rtnl(). 2025-04-14 17:08:45 -07:00
net_ratelimit.h
net_shaper.h net-shapers: implement NL get operation 2024-10-10 08:30:22 -07:00
net_trackers.h
netdev_lock.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-05-22 09:42:41 -07:00
netdev_netlink.h net: add granular lock for the netdev netlink socket 2025-03-12 13:32:35 -07:00
netdev_queues.h queue_api: reduce risk of name collision over txq 2025-05-19 20:09:02 -07:00
netdev_rx_queue.h net: designate XSK pool pointers in queues as "ops protected" 2025-04-09 17:01:51 -07:00
netevent.h
netkit.h bpf, netkit: Add indirect call wrapper for fetching peer dev 2023-11-20 10:15:16 -08:00
netlabel.h Networking changes for 6.13. 2024-11-21 08:28:08 -08:00
netlink.h netlink: fix policy dump for int with validation callback 2025-05-12 18:50:09 -07:00
netmem.h net: enable driver support for netmem TX 2025-05-13 11:12:49 +02:00
netprio_cgroup.h
netrom.h
nexthop.h ipv6: Protect nh->f6i_list with spinlock and flag. 2025-04-24 09:29:56 +02:00
nl802154.h ieee802154: Correct spelling in nl802154.h 2024-08-30 22:30:55 +02:00
nsh.h net: NSH: fix kernel-doc notation warning 2023-07-14 20:39:29 -07:00
pfcp.h pfcp: always set pfcp metadata 2024-04-01 10:49:28 +01:00
pie.h pie: fix kernel-doc notation warning 2023-07-14 20:39:30 -07:00
ping.h net/ipv4: ping_group_range: allow GID from 2147483648 to 4294967294 2023-06-02 09:55:22 +01:00
pkt_cls.h net: sched: refine software bypass handling in tc_run 2025-01-20 09:21:27 +00:00
pkt_sched.h net/sched: sch_qfq: Fix null-deref in agg_dequeue 2025-07-10 11:08:35 +02:00
pptp.h
proto_memory.h net: move sysctl_mem_pcpu_rsv to net_hotdata 2024-04-30 18:46:52 -07:00
protocol.h ipv6: move tcp_ipv6_hash_secret and udp_ipv6_hash_secret to net_hotdata 2024-03-07 21:12:43 -08:00
psample.h net: psample: fix flag being set in wrong skb 2024-07-11 18:11:31 -07:00
psnap.h
raw.h
rawv6.h
red.h net: sched: Correct spelling in headers 2024-08-26 09:37:23 -07:00
regulatory.h net: Correct spelling in headers 2024-08-26 09:37:23 -07:00
request_sock.h tcp: move reqsk_alloc() to inet_connection_sock.c 2024-06-06 15:18:04 +02:00
rose.h
route.h ip: load balance tcp connections to single dst addr and port 2025-04-29 16:22:25 +02:00
rpl.h ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv(). 2023-06-19 11:32:58 -07:00
rps.h net: rfs: add sock_rps_delete_flow() helper 2025-05-16 16:03:48 -07:00
rsi_91x.h rsi: remove kernel-doc comment marker 2023-07-14 20:39:30 -07:00
rstreason.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
rtnetlink.h rtnetlink: Remove "net" from newlink params 2025-02-21 15:28:03 -08:00
rtnh.h
sch_generic.h net_sched: remove qdisc_tree_flush_backlog() 2025-06-12 08:05:50 -07:00
scm.h af_unix/scm: fix whitespace errors 2025-07-04 09:32:35 +02:00
secure_seq.h net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
seg6_hmac.h ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
seg6_local.h seg6: Use nested-BH locking for seg6_bpf_srh_states. 2024-06-24 16:41:23 -07:00
seg6.h ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
selftests.h
slhc_vj.h
smc.h net/smc: add operations to merge sndbuf with peer DMB 2024-04-30 13:24:48 +02:00
snmp.h percpu: use TYPEOF_UNQUAL() in variable declarations 2025-03-16 22:05:53 -07:00
sock_reuseport.h net: core: annotate socks of struct sock_reuseport with __counted_by 2024-08-02 17:16:59 -07:00
sock.h Merge branch 'timestamp-for-jens' of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into for-6.17/io_uring 2025-06-23 08:59:38 -06:00
Space.h net: appletalk: remove cops support 2023-10-04 11:49:20 -07:00
stp.h
strparser.h strparser: Remove unused __strp_unpause 2025-05-05 16:48:12 -07:00
switchdev.h net: bridge: switchdev: Skip MDB replays of deferred events on offload 2024-02-16 09:36:37 +00:00
tc_wrapper.h Merge branch 'x86/bugs' into x86/core, to pick up pending changes before dependent patches 2024-02-14 10:49:37 +01:00
tcp_ao.h net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals 2024-11-03 12:10:11 -08:00
tcp_states.h tcp: Dump bound-only sockets in inet_diag. 2023-12-04 14:45:26 -08:00
tcp.h tcp: add TCP_RFC7323_TW_PAWS drop reason 2025-04-10 18:29:26 -07:00
tcx.h bpf: Fix too early release of tcx_entry 2024-07-08 14:07:31 -07:00
timewait_sock.h tcp: get rid of twsk_unique() 2024-05-09 20:25:55 -07:00
tipc.h
tls_prot.h net/tls: Add TLS Alert definitions 2023-07-28 14:07:59 -07:00
tls_toe.h
tls.h tls: block decryption when a rekey is pending 2024-12-16 12:47:29 +00:00
transp_v6.h inet6: Remove unused function declaration udpv6_connect() 2023-08-01 15:06:27 -07:00
tso.h
tun_proto.h
udp_tunnel.h udp: properly deal with xfrm encap and ADDRFORM 2025-04-14 14:29:01 -07:00
udp.h udp_tunnel: create a fastpath GRO lookup. 2025-04-08 18:19:41 -07:00
udplite.h udplite: fix various data-races 2023-09-14 16:16:36 +02:00
vsock_addr.h
vxlan.h vxlan: Convert FDB table to rhashtable 2025-04-22 11:11:16 +02:00
wext.h
x25.h x25: Correct spelling in x25.h 2024-08-26 09:37:23 -07:00
x25device.h
xdp_priv.h
xdp_sock_drv.h xsk: Add launch time hardware offload support to XDP Tx metadata 2025-02-20 15:13:45 -08:00
xdp_sock.h xsk: Fix race condition in AF_XDP generic RX path 2025-04-24 17:11:33 -07:00
xdp.h xdp: create locked/unlocked instances of xdp redirect target setters 2025-04-22 19:57:56 -07:00
xfrm.h Revert "xfrm: destroy xfrm_state synchronously on net exit path" 2025-07-08 13:28:29 +02:00
xsk_buff_pool.h xsk: Fix offset calculation in unaligned mode 2025-04-24 17:11:52 -07:00