Eric Dumazet c88644ab5b net: initialize init_net earlier ... [ Upstream commit 9c1be1935f ] While testing a patch that will follow later ("net: add netns refcount tracker to struct nsproxy") I found that devtmpfs_init() was called before init_net was initialized. This is a bug, because devtmpfs_setup() calls ksys_unshare(CLONE_NEWNS); This has the effect of increasing init_net refcount, which will be later overwritten to 1, as part of setup_net(&init_net) We had too many prior patches [1] trying to work around the root cause. Really, make sure init_net is in BSS section, and that net_ns_init() is called earlier at boot time. Note that another patch ("vfs: add netns refcount tracker to struct fs_context") also will need net_ns_init() being called before vfs_caches_init() As a bonus, this patch saves around 4KB in .data section. [1] f8c46cb390 ("netns: do not call pernet ops for not yet set up init_net namespace") b5082df801 ("net: Initialise init_net.count to 1") 734b65417b ("net: Statically initialize init_net.dev_base_head") v2: fixed a build error reported by kernel build bots (CONFIG_NET=n) Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-13 19:27:12 +02:00
..
acpi
asm-generic	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
clocksource
crypto	lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI	2022-02-04 19:22:32 +01:00
drm	drm/connector: Fix typo in documentation	2022-04-08 13:58:58 +02:00
dt-bindings	Fixes for omaps	2022-02-07 17:42:44 +01:00
keys
kunit
kvm
linux	ref_tracker: implement use-after-free detection	2022-04-13 19:27:12 +02:00
math-emu
media
memory
misc
net	net: initialize init_net earlier	2022-04-13 19:27:12 +02:00
pcmcia
ras
rdma
scsi	scsi: core: sd: Add silence_suspend flag to suppress some PM messages	2022-04-08 13:57:20 +02:00
soc	soc: fsl: Replace kernel.h with the necessary inclusions	2022-02-18 17:11:17 -06:00
sound	ALSA: intel-nhlt: add helper to detect SSP link mask	2022-04-08 13:58:46 +02:00
target
trace	rxrpc: Fix call timer start racing with call destruction	2022-04-08 13:58:55 +02:00
uapi	bpf: Make dst_port field in struct bpf_sock 16-bit wide	2022-04-13 19:27:11 +02:00
vdso
video
xen	xen/gnttab: fix gnttab_end_foreign_access() without page specified	2022-03-07 09:48:55 +01:00