linux/drivers/s390
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
..
block return pfn from direct_access, for XIP 2008-04-28 08:58:23 -07:00
char [S390] Remove code duplication from monreader / dcssblk. 2008-04-17 07:47:07 +02:00
cio Convert asm/semaphore.h users to linux/semaphore.h 2008-04-18 22:22:54 -04:00
crypto [S390] zcrypt: Comments and kernel-doc cleanup 2008-04-17 07:47:06 +02:00
kvm s390: KVM guest: virtio device support, and kvm hypercalls 2008-04-27 12:00:51 +03:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26 2008-04-18 18:02:35 -07:00
scsi [SCSI] zfcp: Add some statistics provided by the FCP adapter to the sysfs 2008-04-27 12:19:57 -05:00
Makefile s390: KVM guest: virtio device support, and kvm hypercalls 2008-04-27 12:00:51 +03:00
ebcdic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
s390_rdev.c [PATCH] s390: kzalloc() conversion in drivers/s390 2006-03-24 07:33:18 -08:00
s390mach.c [S390] replace remaining __FUNCTION__ occurrences 2008-04-17 07:47:04 +02:00
s390mach.h [S390] Fix a lot of sparse warnings. 2008-04-17 07:47:06 +02:00
sysinfo.c [S390] Add new fields for System z10 to /proc/sysinfo 2008-04-17 07:47:01 +02:00