From 2e3ca40f03bb13709df40eff2f7fc157803fa5a3 Mon Sep 17 00:00:00 2001 From: Pavel Tatashin Date: Wed, 31 Jan 2018 16:16:02 -0800 Subject: mm: relax deferred struct page requirements There is no need to have ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT, as all the page initialization code is in common code. Also, there is no need to depend on MEMORY_HOTPLUG, as initialization code does not really use hotplug memory functionality. So, we can remove this requirement as well. This patch allows to use deferred struct page initialization on all platforms with memblock allocator. Tested on x86, arm64, and sparc. Also, verified that code compiles on PPC with CONFIG_MEMORY_HOTPLUG disabled. Link: http://lkml.kernel.org/r/20171117014601.31606-1-pasha.tatashin@oracle.com Signed-off-by: Pavel Tatashin Acked-by: Heiko Carstens [s390] Reviewed-by: Khalid Aziz Acked-by: Michael Ellerman Acked-by: Michal Hocko Cc: Steven Sistare Cc: Daniel Jordan Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Kirill A. Shutemov Cc: Reza Arbab Cc: Martin Schwidefsky Cc: Thomas Gleixner Cc: Mel Gorman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 9376637229c9..0105ce28e246 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -108,7 +108,6 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE select ARCH_SAVE_PAGE_KEYS if HIBERNATION select ARCH_SUPPORTS_ATOMIC_RMW - select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT select ARCH_SUPPORTS_NUMA_BALANCING select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF -- cgit v1.2.3-58-ga151