diff options
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 56cec636a1fc..a5dae9a7eb51 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -273,11 +273,6 @@ config BOUNCE by default when ZONE_DMA or HIGHMEM is selected, but you may say n to override this. -config NR_QUICK - int - depends on QUICKLIST - default "1" - config VIRT_TO_BUS bool help @@ -669,23 +664,17 @@ config ZONE_DEVICE If FS_DAX is enabled, then say Y. -config MIGRATE_VMA_HELPER - bool - config DEV_PAGEMAP_OPS bool +# +# Helpers to mirror range of the CPU page tables of a process into device page +# tables. +# config HMM_MIRROR - bool "HMM mirror CPU page table into a device page table" - depends on (X86_64 || PPC64) - depends on MMU && 64BIT - select MMU_NOTIFIER - help - Select HMM_MIRROR if you want to mirror range of the CPU page table of a - process into a device page table. Here, mirror means "keep synchronized". - Prerequisites: the device must provide the ability to write-protect its - page tables (at PAGE_SIZE granularity), and must be able to recover from - the resulting potential page faults. + bool + depends on MMU + depends on MMU_NOTIFIER config DEVICE_PRIVATE bool "Unaddressable device memory (GPU memory, ...)" @@ -723,6 +712,17 @@ config GUP_BENCHMARK config GUP_GET_PTE_LOW_HIGH bool +config READ_ONLY_THP_FOR_FS + bool "Read-only THP for filesystems (EXPERIMENTAL)" + depends on TRANSPARENT_HUGE_PAGECACHE && SHMEM + + help + Allow khugepaged to put read-only file-backed pages in THP. + + This is marked experimental because it is a new feature. Write + support of file THPs will be developed in the next few release + cycles. + config ARCH_HAS_PTE_SPECIAL bool |