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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-03-18 02:33:56 +0100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 10:16:36 +0100 |
| commit | d61e16df940e02e25679bdc1aee8c25786f6de90 (patch) | |
| tree | de76f4007d526835b8564203341ebf66ca29b12d /arch/sparc64/kernel/sys_sparc32.c | |
| parent | [SPARC64]: Top-down address space allocation for 32-bit tasks. (diff) | |
| download | linux-d61e16df940e02e25679bdc1aee8c25786f6de90.tar.xz linux-d61e16df940e02e25679bdc1aee8c25786f6de90.zip | |
[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.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c index 417727bd87ba..0e41df024489 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(¤t->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; |