| 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # |
| 3 | config LIGHTWEIGHT_SPINLOCK_CHECK |
| 4 | bool "Enable lightweight spinlock checks" |
| 5 | depends on DEBUG_KERNEL && SMP && !DEBUG_SPINLOCK |
| 6 | default y |
| 7 | help |
| 8 | Add checks with low performance impact to the spinlock functions |
| 9 | to catch memory overwrites at runtime. For more advanced |
| 10 | spinlock debugging you should choose the DEBUG_SPINLOCK option |
| 11 | which will detect unitialized spinlocks too. |
| 12 | If unsure say Y here. |
| 13 | |
| 14 | config TLB_PTLOCK |
| 15 | bool "Use page table locks in TLB fault handler" |
| 16 | depends on DEBUG_KERNEL && SMP |
| 17 | default n |
| 18 | help |
| 19 | Select this option to enable page table locking in the TLB |
| 20 | fault handler. This ensures that page table entries are |
| 21 | updated consistently on SMP machines at the expense of some |
| 22 | loss in performance. |
| 23 | |