| # SPDX-License-Identifier: GPL-2.0-only |
| |
| config NET_DEV_REFCNT_TRACKER |
| bool "Enable net device refcount tracking" |
| depends on DEBUG_KERNEL && STACKTRACE_SUPPORT && NET |
| select REF_TRACKER |
| default n |
| help |
| Enable debugging feature to track device references. |
| This adds memory and cpu costs. |
| |
| config NET_NS_REFCNT_TRACKER |
| bool "Enable networking namespace refcount tracking" |
| depends on DEBUG_KERNEL && STACKTRACE_SUPPORT && NET |
| select REF_TRACKER |
| default n |
| help |
| Enable debugging feature to track netns references. |
| This adds memory and cpu costs. |
| |
| config DEBUG_NET |
| bool "Add generic networking debug" |
| depends on DEBUG_KERNEL && NET |
| help |
| Enable extra sanity checks in networking. |
| This is mostly used by fuzzers, but is safe to select. |
| |
| config DEBUG_NET_SMALL_RTNL |
| bool "Add extra per-netns mutex inside RTNL" |
| depends on DEBUG_KERNEL && NET && LOCK_DEBUGGING_SUPPORT |
| select PROVE_LOCKING |
| default n |
| help |
| rtnl_lock() is being replaced with rtnl_net_lock() that |
| acquires the global RTNL and a small per-netns RTNL mutex. |
| |
| During the conversion, rtnl_net_lock() just adds an extra |
| mutex in every RTNL scope and slows down the operations. |
| |
| Once the conversion completes, rtnl_lock() will be removed |
| and rtnetlink will gain per-netns scalability. |
