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[SPARC64]: Increase top of 32-bit process stack.

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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>
This commit is contained in:
David S. Miller
2006-03-17 17:33:56 -08:00
parent a91690ddd0
commit d61e16df94
5 changed files with 21 additions and 15 deletions
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4
arch/sparc64/solaris/misc.c
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@@ -90,7 +90,7 @@ static u32 do_solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u64 o
len = PAGE_ALIGN(len);
if(!(flags & MAP_FIXED))
addr = 0;
else if (len > 0xf0000000UL || addr > 0xf0000000UL - len)
else if (len > STACK_TOP32 || addr > STACK_TOP32 - len)
goto out_putf;
ret_type = flags & _MAP_NEW;
flags &= ~_MAP_NEW;
@@ -102,7 +102,7 @@ static u32 do_solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u64 o
(unsigned long) prot, (unsigned long) flags, off);
up_write(&current->mm->mmap_sem);
if(!ret_type)
retval = ((retval < 0xf0000000) ? 0 : retval);
retval = ((retval < STACK_TOP32) ? 0 : retval);
out_putf:
if (file)