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/x86/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index dbe5542a6666..7a1c51198af1 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -69,7 +69,6 @@ config X86 select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO select ARCH_SUPPORTS_ATOMIC_RMW - select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT select ARCH_SUPPORTS_NUMA_BALANCING if X86_64 select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_QUEUED_RWLOCKS -- cgit v1.2.3