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authorJeff Dike <jdike@addtoit.com>2008-02-04 22:31:00 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:29 -0800
commit42a2b54ce8c7b9d4f418995a7950e7e2e15e52ce (patch)
tree30bcb0ea0a4ee6d5091b1b9a85589cff8b1863fc /include/asm-um/processor-generic.h
parentb7c000cbc4f1fa7b82efa95b34f00c2adbeaa3fe (diff)
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.h4
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.