For PA-RISC, we need find_vma_prev to return `prev', even if vma is NULL.
Our stack is at the top of memory, growing upwards, so when we page fault
we need to see prev.  For added bonus points, the code becomes simpler,
less indented, shorter and (for me, anyway) easier to understand.  The
code is well-tested, even on x86.  For PA and ia64 this code is called in
the page fault handler path so it is exercised frequently.

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

into mulgrave.(none):/home/jejb/BK/scsi-for-linus-2.5

into mulgrave.(none):/home/jejb/BK/scsi-for-linus-2.5

Fix APM that got broken by getting rid of "struct tms" and clock_t.

Doug Gilbert and James Bottomley hassled me all through KernelSummit &
OLS to explain about softirqs, tasklets and bottom halves.  In the end,
it was easier to write the code myself.  Thanks to James for pointing
out that the pointer handling in my original code was completely broken
and helping me debug.

I've booted this patch on a 4-way system at OSDL with two Adaptec SCSI
cards.  I haven't tried stressing it (not quite sure which discs I can
use ;-), and I don't understand the locking in the scsi subsystem at all.

The main effect of applying this patch is that scsi_softirq() [was
scsi_tasklet_func, and before that scsi_bottom_half_handler()] can now be
run on multiple CPUs at the same time.  We _seem_ to do enough locking
elsewhere in the SCSI stack that this is safe.  But someone who really
understands the SCSI stack should audit this.

This work shows up a hole in the current softirq API -- there's no support
for unregistering a softirq (close_softirq or similar).  We should do
this in scsi_exit -- make sure no softirqs are running while we unload.
This probably isn't a problem in practice, but it'd be nice to fix it.

Stop using "struct tms" internally - always use timer ticks (or one of
the sane timeval/timespec types) instead.

Explicitly convert to clock_t when copying to user space for the old
broken interfaces that still use "clock_t".

Clean up and unify jiffies<->timeval conversion.

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

into cantab.net:/usr/src/tng-2.0.13

into cantab.net:/usr/src/tng-2.0.12

into cantab.net:/usr/src/tng-2.0.11

   This fixes an off by one error in getcolreg/setcolreg in matroxfb's
secondary head driver.

  When James converted all drivers to unified do_install_cmap(), he
blindly changed also matroxfb, which happily uses fbcon.currcon == -1.
This caused memory corruption because of memory before fb_display[]
array was overwritten.

  Default do_install_cmap() also installed invalid default color map in
some matroxfb resolutions.  Not all world have >= 4bpp.

Disable volume control irq on maestro module unload.

  Fix the usage of pci_map and pci_unmap in the driver, mainly on 0 length cmds
inia100.c:
  Fix the usage of pci_map and pci_unmap in the driver, fix use on 0 length cmds

  Oops, global variable defined in two different files.  One needed extern.

- Remove nr_mft_bits and the now superfluous union with nr_mft_records
  from ntfs_volume structure.
- Remove nr_lcn_bits and the now superfluous union with nr_clusters
  from ntfs_volume structure.
- Use iget5_locked() and friends instead of conventional iget(). Wrap
  the call in fs/ntfs/inode.c::ntfs_iget() and update callers of iget()
  to use ntfs_iget(). Leave only one iget() call at mount time so we
  don't need an ntfs_iget_mount().
- Change fs/ntfs/inode.c::ntfs_new_extent_inode() to take mft_no as an
  additional argument.

* 06/25/02 Doug Ledford <dledford@redhat.com> - v1.02d
*          - Remove limit on number of controllers
*          - Port to DMA mapping API
*          - Clean up interrupt handler registration
*          - Fix memory leaks
*          - Fix allocation of scsi host structs and private data

- Merge fs/ntfs/aops.c::end_buffer_read_mst_async() and
  fs/ntfs/aops.c::end_buffer_read_file_async() into one function
  fs/ntfs/aops.c::end_buffer_read_attr_async() using NInoMstProtected()
  to determine whether to apply mst fixups or not.
- Above change allows merging fs/ntfs/aops.c::ntfs_file_read_block()
  and fs/ntfs/aops.c::ntfs_mst_readpage() into one function
  fs/ntfs/aops.c::ntfs_attr_read_block(). Also, create a tiny wrapper
  fs/ntfs/aops.c::ntfs_mst_readpage() to transform the parameters from
  the VFS readpage function prototype to the ntfs_attr_read_block()
  function prototype.

- Move definition of ntfs_inode_state_bits to fs/ntfs/inode.h and
  do some macro magic (adapted from include/linux/buffer_head.h) to
  expand all the helper functions NInoFoo(), NInoSetFoo(), and
  NInoClearFoo().
- Add new flag to ntfs_inode_state_bits: NI_Sparse.
- Add new fields to ntfs_inode structure to allow use of fake inodes
  for attribute i/o: type, name, name_len. Also add new state bits:
  NI_Attr, which, if set, indicates the inode is a fake inode, and
  NI_MstProtected, which, if set, indicates the attribute uses multi
  sector transfer protection, i.e. fixups need to be applied after
  reads and before/after writes.
- Rename fs/ntfs/inode.c::ntfs_{new,clear,destroy}_inode() to
  ntfs_{new,clear,destroy}_extent_inode() and update callers.
- Use ntfs_clear_extent_inode() in fs/ntfs/inode.c::__ntfs_clear_inode()
  instead of ntfs_destroy_extent_inode().
- Cleanup memory deallocations in {__,}ntfs_clear_{,big_}inode().
- Make all operations on ntfs inode state bits use the NIno* functions.
- Set up the new ntfs inode fields and state bits in
  fs/ntfs/inode.c::ntfs_read_inode() and add appropriate cleanup of
  allocated memory to __ntfs_clear_inode().
- Cleanup ntfs_inode structure a bit for better ordering of elements
  w.r.t. their size to allow better packing of the structure in memory.

The last changes did trigger another latent bug in the inline assembly.
akpm noticed it because he compiles his kernels with frame pointers.

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

Uninline elv_next_request() and move it to elevator.c, where it belongs.
Because of CURRENT declaration, this actually saves lots of space.  From
Andrew.

init_rootfs() (from ramfs) doesn't appear in any header file.  I didn't
see any that looked like a good home, so lets put a prototype at the top
of fs/namespace.c.  This only use of this function is in namespace.c.

This patch makes sure the 3c509 module license is always GPL.  Currently
the MODULE_LICENSE() marco is only used when CONFIG_ISAPNP or
CONFIG_ISAPNP_MODULE is defined.  I have moved MODULE_LICENSE() to the
#ifdef MODULE section at the bottom of 3c509.c.

Same is true for the MODULE_DEVICE_TABLE() macro.

Not sure why I forgot to do this, but here is a small bit of tidying up
of some leftover parentheses from the memlist macro removal. The
parentheses are just noise and should go.

page_alloc.c does not use either slab.h or swapctl.h. This removes the
inclusion of those headers from page_alloc.c

nr_free_pages() is overly verbose. The following is perhaps clearer and
gets to the point with fewer lines of code and inside of 80 columns.