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-rw-r--r--arch/x86/ia32/Makefile3
-rw-r--r--arch/x86/ia32/mmap32.c79
-rw-r--r--arch/x86/mm/Makefile_642
-rw-r--r--arch/x86/mm/mmap_32.c4
4 files changed, 6 insertions, 82 deletions
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index e2edda255a8..a3c997e9f39 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -3,8 +3,7 @@
#
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
- ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o \
- mmap32.o
+ ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o
sysv-$(CONFIG_SYSVIPC) := ipc32.o
obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
diff --git a/arch/x86/ia32/mmap32.c b/arch/x86/ia32/mmap32.c
deleted file mode 100644
index 7649370a314..00000000000
--- a/arch/x86/ia32/mmap32.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * linux/arch/x86_64/ia32/mm/mmap.c
- *
- * flexible mmap layout support
- *
- * Based on the i386 version which was
- *
- * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- *
- * Started by Ingo Molnar <mingo@elte.hu>
- */
-
-#include <linux/personality.h>
-#include <linux/mm.h>
-#include <linux/random.h>
-#include <linux/sched.h>
-
-/*
- * Top of mmap area (just below the process stack).
- *
- * Leave an at least ~128 MB hole.
- */
-#define MIN_GAP (128 * 1024 * 1024)
-#define MAX_GAP (TASK_SIZE / 6 * 5)
-
-static inline unsigned long mmap_base(struct mm_struct *mm)
-{
- unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
- unsigned long random_factor = 0;
-
- if (current->flags & PF_RANDOMIZE)
- random_factor = get_random_int() % (1024 * 1024);
-
- if (gap < MIN_GAP)
- gap = MIN_GAP;
- else if (gap > MAX_GAP)
- gap = MAX_GAP;
-
- return PAGE_ALIGN(TASK_SIZE - gap - random_factor);
-}
-
-/*
- * This function, called very early during the creation of a new
- * process VM image, sets up which VM layout function to use:
- */
-void ia32_pick_mmap_layout(struct mm_struct *mm)
-{
- /*
- * Fall back to the standard layout if the personality
- * bit is set, or if the expected stack growth is unlimited:
- */
- if (sysctl_legacy_va_layout ||
- (current->personality & ADDR_COMPAT_LAYOUT) ||
- current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) {
- mm->mmap_base = TASK_UNMAPPED_BASE;
- mm->get_unmapped_area = arch_get_unmapped_area;
- mm->unmap_area = arch_unmap_area;
- } else {
- mm->mmap_base = mmap_base(mm);
- mm->get_unmapped_area = arch_get_unmapped_area_topdown;
- mm->unmap_area = arch_unmap_area_topdown;
- }
-}
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index 6bcb47945b8..d18baed54fc 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -7,4 +7,4 @@ obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_NUMA) += numa_64.o
obj-$(CONFIG_K8_NUMA) += k8topology_64.o
obj-$(CONFIG_ACPI_NUMA) += srat_64.o
-
+obj-$(CONFIG_IA32_EMULATION) += mmap_32.o
diff --git a/arch/x86/mm/mmap_32.c b/arch/x86/mm/mmap_32.c
index d7dd0962a6d..d490662e4af 100644
--- a/arch/x86/mm/mmap_32.c
+++ b/arch/x86/mm/mmap_32.c
@@ -57,7 +57,11 @@ static inline unsigned long mmap_base(struct mm_struct *mm)
* This function, called very early during the creation of a new
* process VM image, sets up which VM layout function to use:
*/
+#ifdef CONFIG_X86_32
void arch_pick_mmap_layout(struct mm_struct *mm)
+#else
+void ia32_pick_mmap_layout(struct mm_struct *mm)
+#endif
{
/*
* Fall back to the standard layout if the personality