diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2012-10-25 14:16:43 +0200 |
|---|---|---|
| committer | Mel Gorman <mgorman@suse.de> | 2012-12-11 14:42:45 +0000 |
| commit | cbee9f88ec1b8dd6b58f25f54e4f52c82ed77690 (patch) | |
| tree | d4cfbcfa3e89742216cd792d4aa914356406b532 /arch | |
| parent | a720094ded8cbb303111035be91858011d2eac71 (diff) | |
mm: numa: Add fault driven placement and migration
NOTE: This patch is based on "sched, numa, mm: Add fault driven
placement and migration policy" but as it throws away all the policy
to just leave a basic foundation I had to drop the signed-offs-by.
This patch creates a bare-bones method for setting PTEs pte_numa in the
context of the scheduler that when faulted later will be faulted onto the
node the CPU is running on. In itself this does nothing useful but any
placement policy will fundamentally depend on receiving hints on placement
from fault context and doing something intelligent about it.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/mm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/x86/Kconfig | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index cb8f9920f4d..0f7c852f355 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -111,6 +111,7 @@ config VSYSCALL config NUMA bool "Non Uniform Memory Access (NUMA) Support" depends on MMU && SYS_SUPPORTS_NUMA && EXPERIMENTAL + select ARCH_WANT_NUMA_VARIABLE_LOCALITY default n help Some SH systems have many various memories scattered around diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 46c3bff3ced..1137028fc6d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -22,6 +22,8 @@ config X86 def_bool y select HAVE_AOUT if X86_32 select HAVE_UNSTABLE_SCHED_CLOCK + select ARCH_SUPPORTS_NUMA_BALANCING + select ARCH_WANTS_PROT_NUMA_PROT_NONE select HAVE_IDE select HAVE_OPROFILE select HAVE_PCSPKR_PLATFORM |