diff options
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 3f4ffda152b..eb69f352401 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -20,7 +20,7 @@ config FLATMEM_MANUAL Some users of more advanced features like NUMA and memory hotplug may have different options here. - DISCONTIGMEM is an more mature, better tested system, + DISCONTIGMEM is a more mature, better tested system, but is incompatible with memory hotplug and may suffer decreased performance over SPARSEMEM. If unsure between "Sparse Memory" and "Discontiguous Memory", choose @@ -218,9 +218,11 @@ config SPLIT_PTLOCK_CPUS int default "999999" if ARM && !CPU_CACHE_VIPT default "999999" if PARISC && !PA20 - default "999999" if DEBUG_SPINLOCK || DEBUG_LOCK_ALLOC default "4" +config ARCH_ENABLE_SPLIT_PMD_PTLOCK + boolean + # # support for memory balloon compaction config BALLOON_COMPACTION |