original_kernel/fs/ext2
Jared Hulbert 30afcb4bd2 return pfn from direct_access, for XIP
Alter the block device ->direct_access() API to work with the new
get_xip_mem() API (that requires both kaddr and pfn are returned).

Some architectures will not do the right thing in their virt_to_page() for use
by XIP (to translate from the kernel virtual address returned by
direct_access(), to a user mappable pfn in XIP's page fault handler.

However, we can't switch it to just return the pfn and not the kaddr, because
we have no good way to get a kva from a pfn, and XIP requires the kva for its
read(2) and write(2) handlers.  So we have to return both.

Signed-off-by: Jared Hulbert <jaredeh@gmail.com>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Carsten Otte <cotte@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-mm@kvack.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:23 -07:00
..
Makefile
acl.c
acl.h
balloc.c
dir.c
ext2.h
file.c
fsync.c
ialloc.c ext*: spelling fix prefered -> preferred 2008-04-21 22:45:55 +00:00
inode.c ext*: spelling fix prefered -> preferred 2008-04-21 22:45:55 +00:00
ioctl.c
namei.c
super.c
symlink.c
xattr.c
xattr.h
xattr_security.c
xattr_trusted.c
xattr_user.c
xip.c return pfn from direct_access, for XIP 2008-04-28 08:58:23 -07:00
xip.h