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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-04-22 14:47:42 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-10-14 14:32:05 +0200 |
| commit | 5614dd920a02a524c9abc9573374d81f0535f18a (patch) | |
| tree | 2386960d616f9479556b9e94d51dc5561f42598c /arch/s390/Kconfig | |
| parent | mm: add architecture primitives for software dirty bit clearing (diff) | |
| download | linux-5614dd920a02a524c9abc9573374d81f0535f18a.tar.xz linux-5614dd920a02a524c9abc9573374d81f0535f18a.zip | |
s390/mm: implement soft-dirty bits for user memory change tracking
Use bit 2**1 of the pte and bit 2**14 of the pmd for the soft dirty
bit. The fault mechanism to do dirty tracking is already in place.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 1d57000b1b24..44cb7de499bb 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -118,6 +118,7 @@ config S390 select HAVE_ARCH_EARLY_PFN_TO_NID select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_SECCOMP_FILTER + select HAVE_ARCH_SOFT_DIRTY select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE select HAVE_BPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES |