This adds the v4l1-compat module.  This is a module which can translate
most (old) v4l1 ioctls into the new v4l2 API.  This makes it easier for
v4l2 drivers to present both old v4l and new v4l2 APIs to video4linux
applications.  The saa7134 driver uses this for example.

This updates the video-buf helper module.  It changes the field handling
a bit and adds code do deal better with alternating field capture (=
capture even and odd fields to separate video buffers).

This adds the tda9887 i2c module to the linux kernel.  This one is
needed for some TV cards.  It also adds the missing #define to
audiochip.h which currently breaks the bttv build.

into home.transmeta.com:/home/torvalds/v2.5/linux

This adds support for 405GPR, 405LP, STBx25, NP4GS3.

Some of this comes from recent work in the 2_4_devel tree, including the
conversion to using an array (core_ocp[]) to describe on-chip peripherals
in a standard format.  The other major change is to give the board file
control early on in the boot and let it call back to generic 4xx routines
rather than vice-versa.

into samba.org:/home/paulus/kernel/for-linus-ppc

into samba.org:/home/paulus/kernel/for-linus-ppc

into samba.org:/home/paulus/kernel/for-linus-ppc

into samba.org:/home/paulus/kernel/for-linus-ppc

Here is the s390x part of the compat_timespec changes.

Andi Kleen asked for these two, so here they are.  This is the generic
part of creating compat functions for timespec get/put.

Converts the RPC client auth code to use 'list_head' rather than a
custom pointer scheme.

Fixes a (relatively harmless) race which could cause several cred
entries to be created for the same user.

Patch by Chuck Lever to add a new field called wb_pgbase to the
nfs_page struct. This separates the concept of file page offset from
buffer page offset, allowing NFS to specify read and write requests
into buffers at offsets that are independent of the file page
offset. It is a prequisite for direct I/O in NFS.

 This fixes a bug that was found using the Stanford checker.

bio_alloc() shouldn't fail if GFP_NOIO is used, and the bvec count is
sensible.  So remove redundant error checking.

Export dm_table_get_mode()

Just return an error from the error targets map function, rather than
erroring the buffer_head.

printk tgt->error if dm_table_add_target() fails.

Remove explicit return at the end of a couple of void functions.

Call dm_put_target_type() *after* calling the destructor.

Use a rw_semaphore in dm_target.c rather than a rwlock_t, just to keep
in line with dm.c

ti->use was only getting incremented the first time a target type was
retrieved (bug introduced by recent hch patch).

Initialize the clone-info's index to the original bio's index.
Required to properly handle stacking DM devices. [Kevin Corry]

Don't let the ioctl interface drop a suspended device.

We don't need to wake up the synchronous waiter for every BIO
completion - just for the final BIO.

This reduces the context switch rate of a 180 megabyte/sec read from
3500/sec to 2200/sec when performing 1400 128k I/Os per second, so it
more than halves the overhead.

Patch from Badari Pulavarty <pbadari@us.ibm.com> and myself.

This patch adds AIO support for direct-IO - O_DIRECT files, O_DIRECT
blockdevs and /dev/raw/rawN.

Also, the controlling `struct dio' is now always kmalloced, saving ~400 bytes
of stack.

The best tool for testing AIO/DIO is the modified fsx-linux in ext3 CVS.
See http://www.zip.com.au/~akpm/linux/ext3/ for details.  For example:

	fsx-linux -Z -A -R -W -r 512 -w 4096 foo

Running many instances of this against ext3 currently fails with incorrect
file data; some bug in the new ext3 O_DIRECT support.  ext2 is OK though.

In two cases (AIO-for-direct-IO and some CDROM DMA stuff which Jens
did), we need to run set_page_dirty() in interrupt context.  After DMA
hardware has altered userspace pages for direct-IO reads.

But mapping->page_lock, mapping->private_lock and inode_lock are not
irq-safe.  And really, we don't want to convert those locks just for this
problem.

So what we do is to dirty the pages *before* starting I/O.  Then, in
interrupt completion context, check to see that they are still dirty.
If so then there is nothing to do.  But if the pages were cleaned while
the direct-IO is in progress we need to redirty them.  The code uses
schedule_work() for that.

Of course, we could use schedule_work() for all BIOs and pages.  The
speculative dirty-before-starting-IO is just an optimisation.  It's
quite unlikely that any of the pages will be cleaned during the direct
IO.


This code is basically untestable under normal circumstances, because the
relevant pages are pinned via get_user_pages().  This makes
is_page_cache_freeable() evaluate false and the VM doesn't try to write them
out anyway.  But if the pages happen to be MAP_SHARED file pages, pdflush
could clean them.  The way I tested this code was to disable the call to
bio_set_pages_dirty() in fs/direct-io.c.

Patch from Badari Pulavarty <pbadari@us.ibm.com> and myself

This patch adds the infrastructure for performing asynchronous (AIO) blockdev
direct-IO.

- Adds generic_file_aio_write_nolock() and make other
  generic_file_*_write() to use it.

- Modify generic_file_direct_IO() and ->direct_IO() functions to take
  "kiocb *" instead of "file *".

- Renames generic_direct_IO() to blockdev_direct_IO().

- Move generic_file_direct_IO() to mm/filemap.c (it is not
  blockdev-specific, whereas the rest of fs/direct-io.c is).

- Add AIO read/write support to the raw driver.

If direct-io encounters an error, it currently returns that error even if it
performed some I/O.

Change it so that if there is an error and we read or wrote something, return
the number of bytes written/read.  Only return the error code if zero bytes
were written/read.

We need to run exit_aio() when the final user of the mm goes away, else lots
of things leak.

Also remove a printk which comes out when this change is made.

This patch was acked by bcrl.

The patch below is large but trivial:

It removes old #if'd compatiblity code for 2.0 kernels from
drivers/char/ftape/* (this includes the removal of two header files
including only compatibility code and the #include's of these files).

into samba.org:/home/paulus/kernel/for-linus-ppc

	o Correct memory mapped I/O test for legacy controllers
	  that do not have the "auto-access-pause" feature.
	o Prevent NMIs from triggering should the MMAP I/O test fail.
	o Fix aic7770 (EISA/VLB) controller regression.
	o Kill a few compiler warnings.

 o Do not fallback to a wide speed if the device does not support
   wide transfers.

 o Don't bother allocating target instances for wide IDs on narrow
   controllers.

 o Add a few additional diagnostics to aid in tracking down DV bugs.