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authorDavid S. Miller <davem@sunset.davemloft.net>2006-03-17 17:33:56 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:16:36 -0800
commitd61e16df940e02e25679bdc1aee8c25786f6de90 (patch)
treede76f4007d526835b8564203341ebf66ca29b12d /arch/sparc64/kernel/sys_sparc32.c
parenta91690ddd05ab0b7fbdd37733875525ac75c20f2 (diff)
[SPARC64]: Increase top of 32-bit process stack.
Put it one page below the top of the 32-bit address space. This gives us ~16MB more address space to work with. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/sys_sparc32.c')
-rw-r--r--arch/sparc64/kernel/sys_sparc32.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index 417727bd87b..0e41df02448 100644
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -62,6 +62,7 @@
#include <asm/fpumacro.h>
#include <asm/semaphore.h>
#include <asm/mmu_context.h>
+#include <asm/a.out.h>
asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
{
@@ -1039,15 +1040,15 @@ asmlinkage unsigned long sys32_mremap(unsigned long addr,
unsigned long ret = -EINVAL;
unsigned long new_addr = __new_addr;
- if (old_len > 0xf0000000UL || new_len > 0xf0000000UL)
+ if (old_len > STACK_TOP32 || new_len > STACK_TOP32)
goto out;
- if (addr > 0xf0000000UL - old_len)
+ if (addr > STACK_TOP32 - old_len)
goto out;
down_write(&current->mm->mmap_sem);
if (flags & MREMAP_FIXED) {
- if (new_addr > 0xf0000000UL - new_len)
+ if (new_addr > STACK_TOP32 - new_len)
goto out_sem;
- } else if (addr > 0xf0000000UL - new_len) {
+ } else if (addr > STACK_TOP32 - new_len) {
unsigned long map_flags = 0;
struct file *file = NULL;