From 42a2b54ce8c7b9d4f418995a7950e7e2e15e52ce Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 4 Feb 2008 22:31:00 -0800 Subject: 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/common-offsets.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/um/include/common-offsets.h') diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h index b54bd35..5b67d7c 100644 --- a/arch/um/include/common-offsets.h +++ b/arch/um/include/common-offsets.h @@ -39,3 +39,6 @@ DEFINE(UM_HZ, HZ); DEFINE(UM_USEC_PER_SEC, USEC_PER_SEC); DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC); DEFINE(UM_NSEC_PER_USEC, NSEC_PER_USEC); + +/* See as-layout.h for an explanation of the "- 1". Bah. */ +DEFINE(UM_TASK_SIZE, TASK_SIZE - 1); -- cgit v1.1