From 9157f90f08f7db3188cd06971f41cb2ba5646e57 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 4 Feb 2008 22:30:52 -0800 Subject: uml: move um_virt_to_phys This patchset makes UML build and run with three-level page tables on 32-bit hosts. This is an uncommon use case, but the code here needed fixing and cleaning up, so 32-bit three-level pages tables were tested to make sure the changes are good. Patch 1 - code movement Patch 2 - header untangling Patch 3 - style fixups in files affected so far Patch 4 - clean up use of current.h Patch 5 - fix sizes of types that are different between 2 and 3-level page tables - three-level page table support should build at this point Patch 6 - tidy (i.e. eliminate much of) the code that figures out how big the address space is Patch 7 - change um_virt_to_phys into virt_to_pte, clean its interface, and clean its (so far) one caller Patch 8 - the stub pages are covered with a VMA, allowing some nasty code to be thrown out - three-level page tables now work This patch: um_virt_to_phys only has one user, so it can be moved to the same file and made static. Its declarations in pgtable.h and ksyms.c are also gone. current_cmd was another apparent user, but it itself isn't used, so it is deleted. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-um/pgtable.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/asm-um') diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h index 1e7fc0085596..e268506f322a 100644 --- a/include/asm-um/pgtable.h +++ b/include/asm-um/pgtable.h @@ -31,9 +31,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -extern void *um_virt_to_phys(struct task_struct *task, unsigned long virt, - pte_t *pte_out); - /* zero page used for uninitialized stuff */ extern unsigned long *empty_zero_page; -- cgit v1.2.3