Konstantin Khlebnikov 589503cb24 inet_diag: fix reporting cgroup classid and fallback to priority ... [ Upstream commit 1ec17dbd90 ] Field idiag_ext in struct inet_diag_req_v2 used as bitmap of requested extensions has only 8 bits. Thus extensions starting from DCTCPINFO cannot be requested directly. Some of them included into response unconditionally or hook into some of lower 8 bits. Extension INET_DIAG_CLASS_ID has not way to request from the beginning. This patch bundle it with INET_DIAG_TCLASS (ipv6 tos), fixes space reservation, and documents behavior for other extensions. Also this patch adds fallback to reporting socket priority. This filed is more widely used for traffic classification because ipv4 sockets automatically maps TOS to priority and default qdisc pfifo_fast knows about that. But priority could be changed via setsockopt SO_PRIORITY so INET_DIAG_TOS isn't enough for predicting class. Also cgroup2 obsoletes net_cls classid (it always zero), but we cannot reuse this field for reporting cgroup2 id because it is 64-bit (ino+gen). So, after this patch INET_DIAG_CLASS_ID will report socket priority for most common setup when net_cls isn't set and/or cgroup2 in use. Fixes: 0888e372c3 ("net: inet: diag: expose sockets cgroup classid") Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-02-27 10:08:58 +01:00
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acpi
asm-generic	mm: introduce mm_[p4d|pud|pmd]_folded	2018-12-29 13:37:58 +01:00
clocksource
crypto
drm
dt-bindings
keys
kvm
linux	include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR	2019-02-27 10:08:53 +01:00
math-emu
media	media: cec: keep track of outstanding transmits	2019-01-09 17:38:46 +01:00
memory
misc
net	netfilter: nft_flow_offload: fix interaction with vrf slave device	2019-02-27 10:08:54 +01:00
pcmcia
ras
rdma
scsi
soc
sound	ALSA: compress: Fix stop handling on compressed capture streams	2019-02-12 19:47:23 +01:00
target	scsi: target/core: Make sure that target_wait_for_sess_cmds() waits long enough	2019-01-26 09:32:38 +01:00
trace	sunrpc: use-after-free in svc_process_common()	2019-01-16 22:04:37 +01:00
uapi	inet_diag: fix reporting cgroup classid and fallback to priority	2019-02-27 10:08:58 +01:00
video
xen	Revert "xen/balloon: Mark unallocated host memory as UNUSABLE"	2018-12-17 09:24:39 +01:00