From: Andrea Arcangeli <aarcange@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>, linux-mm@kvack.org
Subject: [PATCH] avoid warning when COMPACTION is selected
Date: Fri, 3 Sep 2010 17:38:26 +0200 [thread overview]
Message-ID: <20100903153826.GB16761@random.random> (raw)
From: Andrea Arcangeli <aarcange@redhat.com>
COMPACTION enables MIGRATION, but MIGRATION spawns a warning if numa
or memhotplug aren't selected. However MIGRATION doesn't depend on
them. I guess it's just trying to be strict doing a double check on
who's enabling it, but it doesn't know that compaction also enables
MIGRATION.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
diff --git a/mm/Kconfig b/mm/Kconfig
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -189,7 +189,7 @@ config COMPACTION
config MIGRATION
bool "Page migration"
def_bool y
- depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE
+ depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION
help
Allows the migration of the physical location of pages of processes
while the virtual addresses are not changed. This is useful in
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next reply other threads:[~2010-09-03 15:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-03 15:38 Andrea Arcangeli [this message]
2010-09-03 20:06 ` [PATCH] avoid warning when COMPACTION is selected Andrew Morton
2010-09-06 22:07 ` Andrea Arcangeli
2010-09-04 10:29 ` Mel Gorman
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