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| 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/processor-generic.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/processor-generic.h')
| -rw-r--r-- | include/asm-um/processor-generic.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h index 35ab6a292d63..ecf67069941a 100644 --- a/include/asm-um/processor-generic.h +++ b/include/asm-um/processor-generic.h @@ -94,9 +94,7 @@ static inline void mm_copy_segments(struct mm_struct *from_mm, /* * User space process size: 3GB (default). */ -extern unsigned long task_size; - -#define TASK_SIZE (task_size) +#define TASK_SIZE (CONFIG_TOP_ADDR & PGDIR_MASK) /* This decides where the kernel will search for a free chunk of vm * space during mmap's. |