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- # 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.
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