Disintegrate asm/system.h for SH.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
cc: linux-sh@vger.kernel.org

This fixes up the workaround in 2b4b2bb4
and cleans up __put_user_asm() to get the sizing right from the onset.
Signed-off-by: NOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This follows the sparc changes a439fe51.

Most of the moving about was done with Sam's directions at:

http://marc.info/?l=linux-sh&m=121724823706062&w=2

with subsequent hacking and fixups entirely my fault.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This consolidates everything but the bare assembly routines, which we
will sync up in a follow-up patch.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This patch changes copy_from_user() and copy_to_user() from macros
into static inline functions. This way we can use them as function
pointers. Also unify the 64 bit and 32 bit versions.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

When the thread_info->addr_limit changes were introduced, __access_ok()
was missed in the conversion, allowing user processes to perform P1/P2
accesses under certain conditions.

This has already been corrected with the nommu refactoring in later
kernels.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds in some more __user annotations. These weren't being
handled properly in some of the __get_user and __put_user paths,
so tidy those up.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

A few more outstanding nommu fixups..
Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This fixes up some of the various outstanding nommu bugs on
SH.
Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Drop TIF_USERSPACE and add addr_limit to the thread_info struct.
Subsequently, use that for address checking in strnlen_user() to
ward off bogus -EFAULTs.

Make __strnlen_user() return 0 on exception, rather than -EFAULT.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Remove the deprecated (and unused) verify_area() from various uaccess.h
headers.
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!