From: Anton Blanchard <anton@samba.org>

Reduce stack overflow check to 4096 bytes free, we were tripping it
too much at 8192.

From: Rick Lindsley <ricklind@us.ibm.com>

Fix bug #2230.

I've corresponded with the submitter and he did find a real bug -- when we
were merging I/O requests we didn't always take the oldest request start
time, which would cause a couple of the calculations like wait time and
average queue size to be too small.  He found it mathematically but having
done so, I think logic and inspection makes it easy to verify.

On a really small memory machine (or one with a monstrous kernel memory leak)
we can end up calling blk_congestion_wait() before the waitqueue_heads are set
up.

From: Matt Mackall <mpm@selenic.com>

This piece of the THREAD_SIZE cleanup got dropped.  If you make THREAD_SIZE
> 8k, the init thread overlaps the .init section and gets smashed.  I've
gone ahead and killed INIT_THREAD_SIZE throughout as it wasn't doing much.
This also saves 4k when we use 4k stacks.  Please apply.  Couple more minor
pieces remaining.

keventd and friends are currently holding /dev/console open three times.
It's all inherited from init.

Steal the relevant parts of daemonize() to fix that up.

From: Manfred Spraul <manfred@colorfullife.com>

print_objinfo() dumps the first few characters of an interesting object for
debugging.  It used the wrong object len (including debug padding, instead
of just the data area), which could cause an oops if DEBUG_PAGEALLOC is
enabled.

From: Manfred Spraul <manfred@colorfullife.com>

There are a few unchecked do_munmap()s in the shm code.  Manfred's comment
explains why they are OK.

From: BlaisorBlade <blaisorblade_spam@yahoo.it>, and me

- remove unused `file *' arg from do_write_mem()

- Add checking for copy_from_user() failures in do_write_mem()

- Return correct value from kmem writes() when a fault is encountered.  A
  write()-style syscall's return values are:

   0 when nothing was written and there was no error (someone tried to
   write zero bytes)

   >0: the number of bytes copied, whether or not there was an error.
   Userspace detects errors by noting that the write() return value is less
   than was requested.

   <0: there was an error and no bytes were copied

From: Chris Mason <mason@suse.com>

reiserfs can safely use the generic fs aio functions.

From: Chris Mason <mason@suse.com>

reiserfs_file_write() can use stale metadata after a schedule.

Two reiserfs_file_write bugs, where items can change during a schedule.

From: Chris Mason <mason@suse.com>

Make sure reiserfs uses a reasonable number when restarting long unbounded
transactions (creating holes or deleting files).

Without this patch, the number of blocks requested grows with each
transaction restart, until it hits MAX_BATCH_COUNT and starts forcing
commits with every new transaction.

Oleg Drokin tracked this bug down

From: Chris Mason <mason@suse.com>

Fix a bug in reiserfs search_by_key call, where it might not properly
detect a change in tree height during a schedule.  Originally from
vs@namesys.com

From: Chris Mason <mason@suse.com>

Add conditional schedules to reiserfs to help lower latencies.  Bits of
this orginated long ago in code akpm sent me.

From: Chris Mason <mason@suse.com>

From: Jeff Mahoney <jeffm@suse.de>

fsstress manages to setup a sequence of events that allow an attempt to
perform direct-io on a tail.  bh_result->b_page == NULL, which causes the
PageLocked and PageWriteback checks to perform a NULL deref, causing the
oops.

From: Michael Still <mikal@stillhq.com>

This is needed to get any of the SGML documentation to build with 2.6.4.

From: James Simmons <jsimmons@infradead.org>

This patch merges two of the drawing functions.  The patch uses aligned
transfers when possible even on displays where the characters are not byte
align.  Tested on my my laptop for 12 bit width fonts and 8 bit wide fonts.
It works very nicely.

There's no point in calling mark_page_accessed() here.  The page is never on
the LRU so all mark_page_accessed() will do is to set PG_referenced, which we
immediately clear again.

Add a debug check for workqueues nested more than three deep via the
direct-run-workqueue() path.

Because keventd is a resource which is shared between unrelated parts of the
kernel it is possible for one person's workqueue handler to accidentally call
another person's flush_scheduled_work().  thockin managed it by calling
mntput() from a workqueue handler.  It deadlocks.

It's simple enough to fix: teach flush_scheduled_work() to go direct when it
discovers that the calling thread is the one which should be running the
work.

Note that this can cause recursion.  The depth of that recursion is equal to
the number of currently-queued works which themselves want to call
flush_scheduled_work().  If this ever exceeds three I'll eat my hat.

From: Stephen Smalley <sds@epoch.ncsc.mil>

This patch fixes a bug in the SELinux compute_av code; the current code
yields the right access computation but can cause unnecessary (but
harmless) processing to occur when transition permission wasn't granted in
the first place by the TE configuration.  Thanks to Chad Hanson of TCS for
reporting the bug.

From: Sam Ravnborg <sam@ravnborg.org>

modpost or to be more specific sumversion.c was not behaving correct when
used with O= and MODULE_VERSION was used.  Previously it failed to use
local .h when calculation the md-sum in case of a O= build.

The following patch introduces the following:

- A generic get_next_line()

- Check that the topmost part of the directory matches

- Using strrch when checking for file with suffix .o

- Use NOFAIL for allocations in sumversion

- Avoid memory leak in new_module

The generic get_next_line will pay off when Andreas implmentation of
storing symbol addresses in a seperate file is introduced.

From: Arnd Bergmann <arnd@arndb.de>

The recent "fbdev: monitor detection fixes" patch broke modular frame
buffer drivers.

From: "Randy.Dunlap" <rddunlap@osdl.org>

Moves PCI BIOS Access Mode help text to its top level instead of under
PCI_GOBIOS (which is only 1 of 4 possible choices).

From: <viro@parcelfarce.linux.theplanet.co.uk>

check_region() fixes.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  maximilian attems <janitor@sternwelten.at>

Print something friendlier than:

/bin/sh: fig2dev: command not found
make[1]: *** [Documentation/DocBook/parport-share.eps] Error 127
make: *** [pdfdocs] Error 2

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  a.othieno@bluewin.ch (Arthur Othieno)

add_gendisk() was replaced with add_disk(), but the comment suggests
otherwise.  Breaks `make *docs'.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  andersen@codepoet.org

I've moved...  This patch updates my contact info.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From: Steve Youngs <sryoungs@bigpond.net.au> Add module aliases for 21285,
amba, anakin, clps711x, mux, and sa1100 serial drivers.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  Thomas Molina <tmolina@cablespeed.com>

ver_linux hasn't displayed binutils version right for some time.  This patch
corrects that and preserves the old behaviour as well, as suggested by Rusty.

From:  Rusty Russell <rusty@rustcorp.com.au>

Fix a problem with kallsyms being unable to look up symbols which are in
modules.

add_kallsyms should be above module_finalize, which means you can just use
the mod->symtab and mod->strtab members.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  Carl Spalletta <ioanamitu@yahoo.com>

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  Pavel Machek <pavel@ucw.cz>

There's acpi_disable somewhere in the acpi interpreter (it disables
interrupts, iirc).  Thus blacklisting function needs better name.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  Omkhar Arasaratnam <omkhar@rogers.com>

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  Pavel Machek <pavel@ucw.cz>

I was sending this to users that had problems with swsusp, then lost it.  It
would be nice to have it directly in the tree.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  Pavel Machek <pavel@ucw.cz>

acpi_sleep option should be documented.

From: Trivial Patch Monkey <trivial@rustcorp.com.au>

From:  Omkhar Arasaratnam <omkhar@rogers.com>

check_region() fix

From: Willem Riede <wrlk@riede.org>

The patch revises the error handling in ide-scsi, fixing the scheduling
while locked issues, and make it work properly, at least for me...

Specific changes in this patch:

- introduce idescsi_expiry, a timeout routine for the ide subsystem,
  which simply flags the fact that the command timed out, but postpones
  any other action until either the command still finishes on its own
  (unlikely?) or the scsi error handler kicks in;

- introduce idescsi_atapi_error and idescsi_atapi_abort, error routines
  for the ide subsystem, which are modeled after those of ide-cd, but
  take only minimal effort to recover, leaving the heavy lifting for
  the scsi error handler;

- rewrite (and rename for clarity) idescsi_eh_abort and idescsi_eh_error,
  the abort/error routines to be called by the scsi error handler --
  this redesign should not have the scheduling while atomic problems
  of the old implementation.

- move ide_cdrom_dump_status() from ide-cd.c to ide-lib.c as
  ide_dump_atapi_status() and both ide-cd and ide-scsi call it.

- replaces BUG() by WARN_ON()/printk in the error handling code.

- sets TASK_UNINTERRUPTIBLE before schedule_timeout() and moves the host
  unlock/lock around the while loop inside the loop in idescsi_eh_reset().

From: Stephen Smalley <sds@epoch.ncsc.mil>

This patch extends the SELinux policy engine to support conditional policy
logic based on a set of policy booleans, allowing well-formed changes to
the policy to be defined within and mediated by the policy itself.

The conditional policy extensions were implemented and contributed by
Tresys Technology.

Userland packages that support these extensions are already available from
nsa.gov/selinux, and backward compatibility is provided for the prior
policy version.

The patch also includes a small change to enable detection of the optional
MLS policy model on a SELinux system and fixes to the conditional policy
extensions to allow the MLS policy to work correctly with them that were
implemented and contributed by Trusted Computer Solutions.

From: Gerald Schaefer <gerald.schaefer@gmx.net>

Update s390 to track the new fields in struct page_state.

From: Tom Rini <trini@kernel.crashing.org>

The problem is that on PPC32 (and probably sparc64) 'asmlinkage' is a
useless keyword, and should just be removed from include/asm-ppc/unistd.h.