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53c0a58beb
linux/net
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Al Viro 53c0a58beb net/socket.c: switch to CLASS(fd) 
The important part in sockfd_lookup_light() is avoiding needless
file refcount operations, not the marginal reduction of the register
pressure from not keeping a struct file pointer in the caller.

	Switch to use fdget()/fdpu(); with sane use of CLASS(fd) we can
get a better code generation...

	Would be nice if somebody tested it on networking test suites
(including benchmarks)...

	sockfd_lookup_light() does fdget(), uses sock_from_file() to
get the associated socket and returns the struct socket reference to
the caller, along with "do we need to fput()" flag.  No matching fdput(),
the caller does its equivalent manually, using the fact that sock->file
points to the struct file the socket has come from.

	Get rid of that - have the callers do fdget()/fdput() and
use sock_from_file() directly.  That kills sockfd_lookup_light()
and fput_light() (no users left).

	What's more, we can get rid of explicit fdget()/fdput() by
switching to CLASS(fd, ...) - code generation does not suffer, since
now fdput() inserted on "descriptor is not opened" failure exit
is recognized to be a no-op by compiler.

[folded a fix for braino in do_recvmmsg() caught by Simon Horman]

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2024-11-03 01:27:11 -05:00
..
6lowpan ipv6: eliminate ndisc_ops_is_useropt() 2024-08-12 17:23:57 -07:00
9p net/9p/usbg: fix CONFIG_USB_GADGET dependency 2024-09-11 15:59:43 +02:00
802 move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
8021q netdev_features: remove NETIF_F_ALL_FCOE 2024-09-03 11:36:43 +02:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
atm atm: clean up a put_user() calls 2024-06-14 19:08:50 -07:00
ax25 ax25: Replace kfree() in ax25_dev_free() with ax25_dev_put() 2024-06-01 15:49:42 -07:00
batman-adv move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
bluetooth Including fixes from ieee802154, bluetooth and netfilter. 2024-10-03 09:44:00 -07:00
bpf bpf: use type_may_be_null() helper for nullable-param check 2024-09-05 13:29:06 -07:00
bridge Including fixes from ieee802154, bluetooth and netfilter. 2024-10-03 09:44:00 -07:00
caif move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-09-15 09:13:19 -07:00
ceph libceph: use min() to simplify code in ceph_dns_resolve_name() 2024-08-27 09:30:16 +02:00
core Including fixes from ieee802154, bluetooth and netfilter. 2024-10-03 09:44:00 -07:00
dcb
dccp move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
devlink devlink: Constify the 'table_ops' parameter of devl_dpipe_table_register() 2024-06-05 10:24:57 +01:00
dns_resolver
dsa net: dsa: improve shutdown sequence 2024-10-01 09:56:36 +02:00
ethernet netkit: Fix pkt_type override upon netkit pass verdict 2024-05-25 10:48:57 -07:00
ethtool net: ethtool: phy: Don't set the context dev pointer for unfiltered DUMP 2024-09-13 21:40:12 -07:00
handshake net/handshake: use sockfd_put() helper 2024-08-27 16:09:25 -07:00
hsr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-09-12 17:11:24 -07:00
ieee802154 netdev_features: convert NETIF_F_NETNS_LOCAL to dev->netns_local 2024-09-03 11:36:43 +02:00
ife
ipv4 Including fixes from ieee802154, bluetooth and netfilter. 2024-10-03 09:44:00 -07:00
ipv6 Including fixes from ieee802154, bluetooth and netfilter. 2024-10-03 09:44:00 -07:00
iucv s390/iucv: Fix vargs handling in iucv_alloc_device() 2024-08-22 13:09:20 -07:00
kcm kcm: Serialise kcm_sendmsg() for the same socket. 2024-08-19 18:36:12 -07:00
key
l2tp l2tp: remove unneeded null check in l2tp_v2_session_get_next 2024-09-04 16:39:32 -07:00
l3mdev
lapb
llc llc: Constify struct llc_sap_state_trans 2024-07-15 08:51:19 -07:00
mac80211 move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
mac802154 Including fixes from ieee802154, bluetooth and netfilter. 2024-10-03 09:44:00 -07:00
mctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-08-22 17:06:18 -07:00
mpls net: mpls: delete redundant judgment statements 2024-08-23 14:27:46 +01:00
mptcp move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
ncsi net/ncsi: Disable the ncsi work before freeing the associated structure 2024-10-03 10:14:14 +02:00
netfilter move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
netlabel netlabel: fix RCU annotation for IPv4 options on socket creation 2024-05-13 14:58:12 -07:00
netlink net: netlink: Remove the dump_cb_mutex field from struct netlink_sock 2024-08-26 10:35:16 +01:00
netrom net/netrom: prefer strscpy over strcpy 2024-08-29 12:33:07 -07:00
nfc Quite smaller than usual. Notably it includes the fix for the unix 2024-05-23 12:49:37 -07:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-04-26 12:20:01 +02:00
openvswitch netdev_features: convert NETIF_F_NETNS_LOCAL to dev->netns_local 2024-09-03 11:36:43 +02:00
packet net: add support for skbs with unreadable frags 2024-09-11 20:44:31 -07:00
phonet move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
psample net: psample: fix flag being set in wrong skb 2024-07-11 18:11:31 -07:00
qrtr net: qrtr: Update packets cloning when broadcasting 2024-09-24 10:48:16 +02:00
rds net: rds: add option for GCOV profiling 2024-08-09 13:18:46 +01:00
rfkill [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
rose net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
rxrpc rxrpc: Remove unused function declarations 2024-08-02 17:17:34 -07:00
sched move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
sctp sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start 2024-10-03 12:18:29 +02:00
smc net/smc: add sysctl for smc_limit_hs 2024-09-10 12:11:04 +02:00
strparser
sunrpc move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
switchdev net: bridge: switchdev: Improve error message for port_obj_add/del functions 2024-05-08 12:19:12 +01:00
tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-09-15 09:13:19 -07:00
tls move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
unix af_unix: Don't return OOB skb in manage_oob(). 2024-09-09 17:14:27 -07:00
vmw_vsock virtio: features, fixes, cleanups 2024-09-26 08:43:17 -07:00
wireless move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
x25 net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
xdp bpf-next-6.12 2024-09-21 09:27:50 -07:00
xfrm move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
compat.c
devres.c
Kconfig memory-provider: disable building dmabuf mp on !CONFIG_PAGE_POOL 2024-09-13 11:41:45 -07:00
Kconfig.debug
Makefile
socket.c net/socket.c: switch to CLASS(fd) 2024-11-03 01:27:11 -05:00
sysctl_net.c sysctl: Remove check for sentinel element in ctl_table arrays 2024-06-13 10:50:52 +02:00