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| author | Chen Gang <gang.chen@asianux.com> | 2013-09-12 15:14:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-12 15:38:03 -0700 |
| commit | de32a8177f64bc62e1b19c685dd391af664ab13f (patch) | |
| tree | 590cc9705947f1da9c9eb625122b03cc5e80f332 | |
| parent | 6072ddc8520b86adfac6939ca32fb6e6c4de017a (diff) | |
| download | linux-de32a8177f64bc62e1b19c685dd391af664ab13f.tar.bz2 | |
mm/Kconfig: add MMU dependency for MIGRATION.
MIGRATION must depend on MMU, or allmodconfig for the nommu sh
architecture fails to build:
CC mm/migrate.o
mm/migrate.c: In function 'remove_migration_pte':
mm/migrate.c:134:3: error: implicit declaration of function 'pmd_trans_huge' [-Werror=implicit-function-declaration]
if (pmd_trans_huge(*pmd))
^
mm/migrate.c:149:2: error: implicit declaration of function 'is_swap_pte' [-Werror=implicit-function-declaration]
if (!is_swap_pte(pte))
^
...
Also let CMA depend on MMU, or when NOMMU, if we select CMA, it will
select MIGRATION by force.
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/Kconfig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 6cdd27043303..026771a9b097 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -245,7 +245,7 @@ config COMPACTION config MIGRATION bool "Page migration" def_bool y - depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION || CMA + depends on (NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION || CMA) && MMU help Allows the migration of the physical location of pages of processes while the virtual addresses are not changed. This is useful in @@ -480,7 +480,7 @@ config FRONTSWAP config CMA bool "Contiguous Memory Allocator" - depends on HAVE_MEMBLOCK + depends on HAVE_MEMBLOCK && MMU select MIGRATION select MEMORY_ISOLATION help |