diff options
| author | Jeff Dike <jdike@addtoit.com> | 2008-02-05 07:31:00 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 18:44:29 +0100 |
| commit | 42a2b54ce8c7b9d4f418995a7950e7e2e15e52ce (patch) | |
| tree | 30bcb0ea0a4ee6d5091b1b9a85589cff8b1863fc /include/asm-um/fixmap.h | |
| parent | uml: add missing space (diff) | |
| download | linux-42a2b54ce8c7b9d4f418995a7950e7e2e15e52ce.tar.xz linux-42a2b54ce8c7b9d4f418995a7950e7e2e15e52ce.zip | |
uml: clean up TASK_SIZE usage
Clean up the calculation and use of the usable address space size on the host.
task_size is gone, replaced with TASK_SIZE, which is calculated from
CONFIG_TOP_ADDR. get_kmem_end and set_task_sizes_skas are also gone.
host_task_size, which refers to the entire address space usable by the UML
kernel and which may be larger than the address space usable by a UML process,
since that has to end on a pgdir boundary, is replaced by CONFIG_TOP_ADDR.
STACK_TOP is now TASK_SIZE minus the two stub pages.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-um/fixmap.h')
| -rw-r--r-- | include/asm-um/fixmap.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/asm-um/fixmap.h b/include/asm-um/fixmap.h index 3d3e85d30ac2..89a87c18b927 100644 --- a/include/asm-um/fixmap.h +++ b/include/asm-um/fixmap.h @@ -56,9 +56,8 @@ extern void __set_fixmap (enum fixed_addresses idx, * the start of the fixmap, and leave one page empty * at the top of mem.. */ -extern unsigned long get_kmem_end(void); -#define FIXADDR_TOP (get_kmem_end() - 0x2000) +#define FIXADDR_TOP (CONFIG_TOP_ADDR - 2 * PAGE_SIZE) #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) |