Subject: + mm-kconfig-add-mmu-dependency-for-migration.patch added to -mm tree To: gang.chen@xxxxxxxxxxx,mhocko@xxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Thu, 08 Aug 2013 13:52:07 -0700 The patch titled Subject: mm/Kconfig: add MMU dependency for MIGRATION. has been added to the -mm tree. Its filename is mm-kconfig-add-mmu-dependency-for-migration.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-kconfig-add-mmu-dependency-for-migration.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-kconfig-add-mmu-dependency-for-migration.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Chen Gang <gang.chen@xxxxxxxxxxx> Subject: 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@xxxxxxxxxxx> Reviewed-by: Michal Hocko <mhocko@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -puN mm/Kconfig~mm-kconfig-add-mmu-dependency-for-migration mm/Kconfig --- a/mm/Kconfig~mm-kconfig-add-mmu-dependency-for-migration +++ a/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 @@ -522,7 +522,7 @@ config MEM_SOFT_DIRTY config CMA bool "Contiguous Memory Allocator" - depends on HAVE_MEMBLOCK + depends on HAVE_MEMBLOCK && MMU select MIGRATION select MEMORY_ISOLATION help _ Patches currently in -mm which might be from gang.chen@xxxxxxxxxxx are origin.patch arch-kconfig-add-kernel-kconfigfreezer-to-arch-kconfig.patch sh64-kernel-use-usp-instead-of-fn.patch sh64-kernel-remove-useless-variable-regs.patch include-linux-interrupth-add-dummy-irq_set_irq_wake-for-generic_hardirqs.patch mm-page_allocc-use-__paginginit-instead-of-__init.patch kernel-smpc-free-related-resources-when-failure-occurs-in-hotplug_cfd.patch linux-next.patch mm-kconfig-add-mmu-dependency-for-migration.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html