diff options
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index f5e698e30d4..7e28ecfa8aa 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -477,3 +477,15 @@ config FRONTSWAP and swap data is stored as normal on the matching swap device. If unsure, say Y to enable frontswap. + +config MEM_SOFT_DIRTY + bool "Track memory changes" + depends on CHECKPOINT_RESTORE && HAVE_ARCH_SOFT_DIRTY + select PROC_PAGE_MONITOR + help + This option enables memory changes tracking by introducing a + soft-dirty bit on pte-s. This bit it set when someone writes + into a page just as regular dirty bit, but unlike the latter + it can be cleared by hands. + + See Documentation/vm/soft-dirty.txt for more details. |