Finally, we end with this the need to update arch/um/Kconfig_block with
changes in drivers/block/Kconfig - we include directly that; UML-specific
entries were moved into it (they are very few).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

If UML wants to open an xterm channel and the xterm does not run properly (eg.
 terminates soon after starting) we will get a hang (a comment added in the
patch explains why).

This avoids the most common cause for this and adds a comment (which long term
will go away with a rewrite of that code); the complete fix would be to catch
the xterm process dying, up(&data->sem), and -EIO all requests from that point
onwards.

That applies for some of the other channels too, so part of the code should
probably be abstracted a little and generalized.
Signed-off-by: Chris Wedgwood <cw@f00f.org>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Explain what happens inside the SIGWINCH handler - it's non-obvious enough
that the correct code seemed me to need a cleanup (which was indeed buggy).
More info in the comments themselves.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Remove nowhere referenced header. (egrep "filename\." didn't find anything)
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Cc: UML-devel <user-mode-linux-devel@lists.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Drop that header inclusion - I discovered this header was unused while
checking whether I can use the __set_page_dirty_nobuffers speedup suggested by
Andrew Morton.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add some comments about the "uml-sysemu-fixes" patch of 2.6.10-mm1 (merged in
2.6.11-rc1).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This config option was lost during the creation of lib/Kconfig.debug, due to a
bad expressed dependency; I also moved the option back to its original place
for UML (it is near CONFIG_MCONSOLE since it depends on that).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch reorders two lines to check a variable for NULL before using 
the variable.
Signed-off-by: Frank Sorenson <frank@tuxrocks.com>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch is from Nigel's swsusp2, it kills ugly #include <suspend.h> from
all over the tree, and makes code slightly nicer.  I only left those parts
that do not change any code.

From: Nigel Cunningham <ncunningham@linuxmail.org>
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

IRQ balancing daemon needs try_to_freeze().
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This cleans few comments/formatting.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This updates swsusp documentation.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This almost changes no code (constant is still "3"), but at least it uses
right constants for device_suspend() and fixes types at few points.  Also
puts explanation of constants to the Documentation.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This adds few missing statics to swsusp.c, prints errors even when
non-debugging and fixes last "pmdisk: " message. Fixed few comments. 
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Another cpumask_t related fix: use cpumask_t instead of unsigned long.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Calculating the base address of the segment is tricky and is used in
several places as well.  This patch moves this tricky part in a common
place as suggested by Andi Kleen.
Signed-of-by: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch is intended to fix a bug in timer_suspend() on x86_64 that
causes hard lockups on suspend with swsusp and provide some optimizations. 
It is based on the Nigel Cunningham's patches to to reduce delay in
arch/kernel/time.c.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Acked-by: Nigel Cunningham <ncunningham@linuxmail.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Optimize first/node_node

Optimize nodemask_t slightly.  The x86-64 find_first/next_bit uses
__builtin_constant_p on the size argument to special cases small single
long word searches.  But most gccs don't make __builtin_constant_p true
when an argument is passed through an inline function.  Move the constant
into the inline function to avoid this.  This generates a lot better code
for node searches on x86-64.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Disable sys_uselib for 64bit processes and only enable for 32bit processes
when a.out support is compiled in.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Move early CPU detection earlier.  Needed for some followup patches and
makes sense in general.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add missing argument brackets in bitop macros

Makes these macros somewhat safer to use.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Enlarge i386/x86-64 kernel command line to 2k

This is useful when the kernel command line is used to pass other
information to initrds or installers.

On i386 it was duplicated for unknown reasons.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The attached patch cleans up some excess whitespace from the FRV entry.S.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The attached patch removes the mandatory single-step diversion code from
the FRV syscall handler that was put there for debugging purposes now that
it's no longer needed.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

With David Woodhouse <dwmw2@infradead.org>

We don't set MM_VM_SIZE() on ppc64, so it defaults to TASK_SIZE.  Which
means a 32-bit process ending up in exit_mmap() to kill a 64-bit mm may
call tlb_finish_mmu() with an incorrect 'end' argument.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

On some systems, the first PCI bus has a ISA I/O hole at the first 16MB.
We can't use this space for DMA addresses on the bus.

On Python-based machines, we'll skip the first 256MB on buses that have the
hole, just as we do on later systems.  This means that the first bus will
have 768MB of DMA space shared between the devices on it.
Signed-off-by: Olof Johansson <olof@austin.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

When the iseries_veth driver module is unloaded there is the potential for an
oops and also some memory leakage.

Because the HvLpEvent_unregisterHandler() function did no synchronisation,
it was possible for the handler that was being unregistered to be running
on another CPU *after* HvLpEvent_unregisterHandler() had returned.  This
could cause the iseries_veth driver to leave work in the events work queue
after the module had been unloaded.  When that work was eventually executed
we got an oops.

In addition some of the data structures in the iseries_veth driver were not
being correctly freed when the module was unloaded.

This is the second patch, we make iseries_veth call flush_scheduled_work()
after we are sure the handler is no longer running, and also fix the memory
leaks.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

When the iseries_veth driver module is unloaded there is the potential for
an oops and also some memory leakage.

Because the HvLpEvent_unregisterHandler() function did no synchronisation,
it was possible for the handler that was being unregistered to be running
on another CPU *after* HvLpEvent_unregisterHandler() had returned.  This
could cause the iseries_veth driver to leave work in the events work queue
after the module had been unloaded.  When that work was eventually executed
we got an oops.

In addition some of the data structures in the iseries_veth driver were not
being correctly freed when the module was unloaded.

This is the first patch, which makes HvLpEvent_unregisterHandler() work.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Fix PPC44x build broken from a latent bug.
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The following adds support for Freescale's PQ2FADS board to the kernel.

(The 'real' changes required for the board are in the ethernet driver,
which needs a massive sync-up with mainline as I've been holding out for a
better, rewritten one from the Freescale folks, who're waiting for the PHY
lib patch sent to the net-dev list to get ack'd)
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

When I reworked the m82xx init functions, I inadvertantly broke the callout
we had from ppc_md.setup_arch() that boards can use to poke & prod things,
once mappings are set.  The following adds in a callback and updates the
one m82xx board that needs it.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

I just discovered there's a thinko in the mark-page-accessed change in
do_generic_mapping_read() in 2.6.11-rc1.  ra.prev_page is compared to index
to see if we read from this page before - except that prev_page is actually
set to the recent page or even a page in front of the current page.

So we should store ra.prev_page in a seperate variable at the start of
do_generic_mapping_read().
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Change routine name from handle_outgoing_smp to handle_outgoing_dr_smp.
Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Move the gather list and work request used for posting sends from the stack in
ipoib_send() to the private structure.  This reduces the stack usage for the
data path function ipoib_send() and may speed things up slightly because we
don't need to initialize constant members of the structures.
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Update copyright line (files were modified in 2005).
Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add a new function to find a port on a device given a GID by searching the
cached GID tables.  Document all cache functions in ib_cache.h.  Rename
existing functions to better match format of verb routines.

Signed-off by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add qp_type to struct ib_qp.

Signed-off by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add parameters to process_mad device method to support full Mellanox firmware
capabilities (pass sufficient information for baseboard management trap
generation, etc).
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Handle outgoing DR 0 hop SMPs properly when provider returns just SUCCESS to
process_mad.
Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Clean up the computation of the HCA context memory map.  This serves two
purposes:

 - make it easier to change the HCA "profile" (eg add more QPs)
 - make it easier to implement mem-free Arbel support
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>