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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/a.out.h
parentb7c000cbc4f1fa7b82efa95b34f00c2adbeaa3fe (diff)
downloadop-kernel-dev-42a2b54ce8c7b9d4f418995a7950e7e2e15e52ce.zip
op-kernel-dev-42a2b54ce8c7b9d4f418995a7950e7e2e15e52ce.tar.gz
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/a.out.h')
-rw-r--r--include/asm-um/a.out.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/include/asm-um/a.out.h b/include/asm-um/a.out.h
index 9281dd8..f42ff145 100644
--- a/include/asm-um/a.out.h
+++ b/include/asm-um/a.out.h
@@ -13,11 +13,9 @@
extern unsigned long stacksizelim;
-extern unsigned long host_task_size;
-
#define STACK_ROOM (stacksizelim)
-#define STACK_TOP task_size
+#define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE)
#define STACK_TOP_MAX STACK_TOP
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