[Linux-mips-commits]CVS: linux/mm memory.c,NONE,1.1

[Steve L. <slo...@us...>]

Update of /cvsroot/linux-mips/linux/mm
In directory usw-pr-cvs1:/tmp/cvs-serv30225/mm

Added Files:
	memory.c 
Log Message:
- consolidate all architectures to use type phys_addr_t for physical
  addresses. MIPS-only phys_t is gone, replaced with phys_addr_t.

- remap_page_range() will "fixup" physaddr's for platforms with 64-bit
  physaddr support enabled, just as __ioremap() does.
  


--- NEW FILE: memory.c ---
/*
 *  linux/mm/memory.c
 *
 *  Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
 */

/*
 * demand-loading started 01.12.91 - seems it is high on the list of
 * things wanted, and it should be easy to implement. - Linus
 */

/*
 * Ok, demand-loading was easy, shared pages a little bit tricker. Shared
 * pages started 02.12.91, seems to work. - Linus.
 *
 * Tested sharing by executing about 30 /bin/sh: under the old kernel it
 * would have taken more than the 6M I have free, but it worked well as
 * far as I could see.
 *
[...1431 lines suppressed...]
out:
	return pte_offset(pmd, address);
}

int make_pages_present(unsigned long addr, unsigned long end)
{
	int ret, len, write;
	struct vm_area_struct * vma;

	vma = find_vma(current->mm, addr);
	write = (vma->vm_flags & VM_WRITE) != 0;
	if (addr >= end)
		BUG();
	if (end > vma->vm_end)
		BUG();
	len = (end+PAGE_SIZE-1)/PAGE_SIZE-addr/PAGE_SIZE;
	ret = get_user_pages(current, current->mm, addr,
			len, write, 0, NULL, NULL);
	return ret == len ? 0 : -1;
}