Commit-ID: ee00f4a32a76ef631394f31d5b6028d50462b357 Gitweb: http://git.kernel.org/tip/ee00f4a32a76ef631394f31d5b6028d50462b357 Author: Kirill A. Shutemov <[email protected]> AuthorDate: Mon, 17 Jul 2017 01:59:53 +0300 Committer: Ingo Molnar <[email protected]> CommitDate: Fri, 21 Jul 2017 10:05:19 +0200
x86/mm: Allow userspace have mappings above 47-bit All bits and pieces are now in place and we can allow userspace to have VMAs above 47 bits. Signed-off-by: Kirill A. Shutemov <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/include/asm/processor.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 58fd40a3..ed26e14 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -850,9 +850,9 @@ static inline void spin_lock_prefetch(const void *x) * particular problem by preventing anything from being mapped * at the maximum canonical address. */ -#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE) +#define TASK_SIZE_MAX ((1UL << __VIRTUAL_MASK_SHIFT) - PAGE_SIZE) -#define DEFAULT_MAP_WINDOW TASK_SIZE_MAX +#define DEFAULT_MAP_WINDOW ((1UL << 47) - PAGE_SIZE) /* This decides where the kernel will search for a free chunk of vm * space during mmap's.
