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[PATCH] Swap Migration V5: Add CONFIG_MIGRATION for page migration support

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Include page migration if the system is NUMA or having a memory model that
allows distinct areas of memory (SPARSEMEM, DISCONTIGMEM).

And:
- Only include lru_add_drain_per_cpu if building for an SMP system.

Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2006-01-08 01:00:49 -08:00 • committed by Linus Torvalds
commit 7cbe34cf86
3 changed files with 20 additions and 9 deletions
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7
mm/Kconfig
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@ -132,3 +132,10 @@ config SPLIT_PTLOCK_CPUS
default "4096" if ARM && !CPU_CACHE_VIPT
default "4096" if PARISC && !PA20
default "4"
#
# support for page migration
#
config MIGRATION
def_bool y if NUMA || SPARSEMEM || DISCONTIGMEM
depends on SWAP