Commit-ID: ee00f4a32a76ef631394f31d5b6028d50462b357 Gitweb: http://git.kernel.org/tip/ee00f4a32a76ef631394f31d5b6028d50462b357 Author: Kirill A. Shutemov <kirill.shute...@linux.intel.com> AuthorDate: Mon, 17 Jul 2017 01:59:53 +0300 Committer: Ingo Molnar <mi...@kernel.org> 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 <kirill.shute...@linux.intel.com> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Andy Lutomirski <l...@amacapital.net> Cc: Dave Hansen <dave.han...@intel.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: linux-a...@vger.kernel.org Cc: linux...@kvack.org Link: http://lkml.kernel.org/r/20170716225954.74185-8-kirill.shute...@linux.intel.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- 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.
