From 1f0e290cc5fd818d002e0a83b0ea8eceb8f2c515 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sat, 27 Nov 2021 07:44:40 -0800 Subject: [PATCH] arch: Add generic Kconfig option indicating page size smaller than 64k NTFS_RW and VMXNET3 require a page size smaller than 64kB. Add generic Kconfig option for use outside architecture code to avoid architecture specific Kconfig options in that code. Suggested-by: Michael Ellerman Signed-off-by: Guenter Roeck Cc: Anton Altaparmakov Signed-off-by: Linus Torvalds --- arch/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/Kconfig b/arch/Kconfig index 26b8ed11639d..d3c4ab249e9c 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -991,6 +991,16 @@ config HAVE_ARCH_COMPAT_MMAP_BASES and vice-versa 32-bit applications to call 64-bit mmap(). Required for applications doing different bitness syscalls. +config PAGE_SIZE_LESS_THAN_64KB + def_bool y + depends on !ARM64_64K_PAGES + depends on !IA64_PAGE_SIZE_64KB + depends on !PAGE_SIZE_64KB + depends on !PARISC_PAGE_SIZE_64KB + depends on !PPC_64K_PAGES + depends on !PPC_256K_PAGES + depends on !PAGE_SIZE_256KB + # This allows to use a set of generic functions to determine mmap base # address by giving priority to top-down scheme only if the process # is not in legacy mode (compat task, unlimited stack size or