OpenCloudOS-Kernel/include
Martin KaFai Lau 5682d393b4 inet_diag: Refactor inet_sk_diag_fill(), dump(), and dump_one()
In a latter patch, there is a need to update "cb->min_dump_alloc"
in inet_sk_diag_fill() as it learns the diffierent bpf_sk_storages
stored in a sk while dumping all sk(s) (e.g. tcp_hashinfo).

The inet_sk_diag_fill() currently does not take the "cb" as an argument.
One of the reason is inet_sk_diag_fill() is used by both dump_one()
and dump() (which belong to the "struct inet_diag_handler".  The dump_one()
interface does not pass the "cb" along.

This patch is to make dump_one() pass a "cb".  The "cb" is created in
inet_diag_cmd_exact().  The "nlh" and "in_skb" are stored in "cb" as
the dump() interface does.  The total number of args in
inet_sk_diag_fill() is also cut from 10 to 7 and
that helps many callers to pass fewer args.

In particular,
"struct user_namespace *user_ns", "u32 pid", and "u32 seq"
can be replaced by accessing "cb->nlh" and "cb->skb".

A similar argument reduction is also made to
inet_twsk_diag_fill() and inet_req_diag_fill().

inet_csk_diag_dump() and inet_csk_diag_fill() are also removed.
They are mostly equivalent to inet_sk_diag_fill().  Their repeated
usages are very limited.  Thus, inet_sk_diag_fill() is directly used
in those occasions.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200225230409.1975173-1-kafai@fb.com
2020-02-27 18:50:19 -08:00
..
acpi ACPI: PM: s2idle: Check fixed wakeup events in acpi_s2idle_wake() 2020-02-21 10:01:25 -08:00
asm-generic Microblaze patches for 5.6-rc1 2020-02-04 11:58:07 +00:00
clocksource clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources 2020-01-16 19:09:02 +01:00
crypto crypto: poly1305 - add new 32 and 64-bit generic versions 2020-01-16 15:18:12 +08:00
drm drm/amdgpu: fix doc by clarifying sched_list definition 2020-01-27 16:46:44 -05:00
dt-bindings ARM: SoC: late updates 2020-02-08 14:17:27 -08:00
keys
kunit
kvm
linux inet_diag: Refactor inet_sk_diag_fill(), dump(), and dump_one() 2020-02-27 18:50:19 -08:00
math-emu
media
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-02-21 15:22:45 -08:00
pcmcia
ras
rdma RDMA/core: Make the entire API tree static 2020-01-30 16:28:52 -04:00
scsi
soc ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
sound ASoC: Fixes for v5.6 2020-02-18 13:33:39 +01:00
target
trace ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
uapi bpf: Replace zero-length array with flexible-array member 2020-02-28 01:21:02 +01:00
vdso lib/vdso: Prepare for time namespace support 2020-01-14 12:20:57 +01:00
video
xen xen: branch for v5.6-rc1 2020-02-05 17:44:14 +00:00