[PATCH net-next 0/2] net: visibility of memory limits in netns

Some programs need to know the size of the network buffers to operate correctly, export the following sysctls read-only in network namespaces:

- net.core.rmem_default - net.core.rmem_max - net.core.wmem_default - net.core.wmem_max

Matteo Croce (2): net: make net.core.{r,w}mem_{default,max} namespaced selftests: net: tests net.core.{r,w}mem_{default,max} sysctls in a netns

net/core/sysctl_net_core.c | 75 ++++++++++++--------- tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/netns-sysctl.sh | 15 +++++ 3 files changed, 58 insertions(+), 33 deletions(-) create mode 100755 tools/testing/selftests/net/netns-sysctl.sh