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| author | Mahesh Bandewar <maheshb@google.com> | 2020-08-26 09:05:35 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-08-28 06:52:44 -0700 |
| commit | 316cdaa1158af17250397054f92bb339fbd8e282 (patch) | |
| tree | 3dd6ca9b7e7397905681871b87a95517a168fa26 /Documentation/admin-guide/kernel-parameters.txt | |
| parent | 0baf01942d3dc52ea7f52c34cb88c6be39de6129 (diff) | |
| download | linux-316cdaa1158af17250397054f92bb339fbd8e282.tar.bz2 | |
net: add option to not create fall-back tunnels in root-ns as well
The sysctl that was added earlier by commit 79134e6ce2c ("net: do
not create fallback tunnels for non-default namespaces") to create
fall-back only in root-ns. This patch enhances that behavior to provide
option not to create fallback tunnels in root-ns as well. Since modules
that create fallback tunnels could be built-in and setting the sysctl
value after booting is pointless, so added a kernel cmdline options to
change this default. The default setting is preseved for backward
compatibility. The kernel command line option of fb_tunnels=initns will
set the sysctl value to 1 and will create fallback tunnels only in initns
while kernel cmdline fb_tunnels=none will set the sysctl value to 2 and
fallback tunnels are skipped in every netns.
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Maciej Zenczykowski <maze@google.com>
Cc: Jian Yang <jianyang@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a1068742a6df..8af893ef0d46 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1338,6 +1338,11 @@ Format: <interval>,<probability>,<space>,<times> See also Documentation/fault-injection/. + fb_tunnels= [NET] + Format: { initns | none } + See Documentation/admin-guide/sysctl/net.rst for + fb_tunnels_only_for_init_ns + floppy= [HW] See Documentation/admin-guide/blockdev/floppy.rst. |