This fixes a bug in which the Ski simulator ended up getting the wrong
time, since phys_get_time() ended up storing the correct time in the
wrong place if a region-5 virtual address was passed (as would happen
for stack variables of the init-task).  On real machines, this bug
likely would have caused a crash on machines which don't support
switching EFI into virtual mode.

The order of reading ar.itc is incorrect with respect to all other
variables in fsys_gettimeofday.  All variables involved in time
interpolation need to be protected by the sequence lock xtime_lock for
consistency check.  However, the first time that fsys_gettimeofday()
takes a time stamp, it reads the count outside the seq lock leading to
the following possible time leap into the future scenario:

fsys_gettimeofday:
  read ar.itc

  .... <context switch> ....

  read_seqbegin
    read all other variables (last_nsec_offset, jiffies, xtime)
    do time interpolation - elapsed_cycles become a large negative
       number and converting it to nsec overflows and make it a
       large positive number
  read_seqretry success
  updates last_nsec_offset (which is several seconds into the future).

All subsequent gettimeofday() calls will be wrong as well because
monotonic property kicks in.  It only self-corrects once that future
time actually arrives.

This patch fixes the problem (and moves one instruction to make some room).
Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Asit Mallick <asit.k.mallick@intel.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

This patch adds IA64 support to the audit infrastructure.  The IA64
audit patch complements the existing audit support for the i386,
PPC64, and x86_64 architectures.  This patch is based on work by Ray
Lanza.
Signed-off-by: Peter Martuccelli <peterm@redhat.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

Drop the prohibition for module core code calls to module init code
(this breaks netfilter).

Signed-off-by: <tony.luck@intel.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

This patch does an early parsing of kernel command line to check if
no_int_route is present. Sal_init code depends on this option to
enable/disable interrupt routing.
Signed-off-by: Rohit Seth <rohit.seth@intel.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

Commands not requiring the monitored task to be stopped would spin in
wait_task_inactive() forever. After call to wait_task_inactive(),
state may have changed, therefore it needs to be rechecked.
Signed-off-by: Stephane Eranian <eranian@hpl.hp.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

This way, non-GENERIC kernels can optimize away the no-op calls
while GENERIC kernels can still take the address of the function
to initialize the machvec vector.

Hit this bug just yesterday.  I hope the problem and fix require no
explanation.  Patched kernel boots and runs just fine.
Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

[PATCH] ia64: Fix OSDL BugMe report 2885: realtime process can't preempt low priority process in kernel

Rearranged code to make it work. There were two problems:

 1. The preempt flag was being tested only if code was leaving for
    user space (the logic should be: test for RESCHEDULE if we're
    switching to a kernel thread, test everything if switching to a
    user thread)

 2. The check of the user space flags was being repeated even if the
    work had been done.

There is one small change in semantics: when returning from a
preemption, the preemption flag will *not* be rechecked.  Otherwise, I
found that it was easy to get into a livelock situation where no
forward progress was made.
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

into tiger.hpl.hp.com:/data1/bk/lia64/to-linus-2.5

ASM_UNW_PRLG_GRSAVE(n) must match the number of input registers in the
following alloc statement.  Otherwise you get invalid backtraces :(
Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

More code needs to be guarded by if (uss32) { ... }. Without this
patch, if (buf32..) may be checking uninitialized data and may result
in spurious ENOMEMs.
Signed-off-by: Gordon Jin <gordon.jin@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

Rename SN local function move_irq to sn_move_irq to remove conflict
with global move_irq.  Needed since ashok.raj moved move_irq() from
iosapic.c to irq.c.
Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: David Mosberger <davidm@hpl.hp.com>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

drivers/video/kyro/fbdev.c: In function `kyrofb_probe':
drivers/video/kyro/fbdev.c:736: warning: passing arg 1 of `memset' makes pointer from integer without a cast
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

allowdma0 is gone in 2.6, the patch below removes the mentionings of this
option in the documentation.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

As ->vm_private_data is used as a cursor for swapout of VM_NONLINEAR vmas,
the check for NULL ->vm_private_data or VM_RESERVED is too strict, and
should allow VM_NONLINEAR vmas with non-NULL ->vm_private_data.

This fixes an issue on 2.6.7-mm5 where system calls to remap_file_pages()
spuriously failed while under memory pressure.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The __bdevname library function is leaking module references due to

	__bdevname
 	->get_gendisk
 	  ->kobj_lookup
 	    ->ata_probe
 	      ->get_disk
 	        ->try_module_get

What we're trying to do in there is too ambitious.  Change it to just print
the major and minor.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

gcc 3.5 is warning about unused static variables, add __attribute_unused__
to the 2 places to silence it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

gcc 3.5 is warning about static vs non static function declarations.  The
following patch removes function prototypes in .h files where possible and
changes prototypes to be static elsewhere.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

For 32-bit, one quickly discovers that swapon() is not given an fd already
opened with O_LARGEFILE to act upon and the forcing of O_LARGEFILE for
64-bit is irrelevant, as the system call's argument is a path.  So this
patch manually forces it for swapon() and swapoff().
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

With the following changes, I was able to compile the "sparc" (32 bit)
arch, using defconfig and crosstool.  There were still plenty of warnings,
but nothing else relating to bitops or cpumasks that I noticed.  This is
working with 2.6.7-mm5.

I have no way to boot test this, but these changes seem obvious enough that
I'd recommend including them.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

It looks like someone removed UPF_RESOURCES in remove-upf_resources.patch
in parallel with someone adding drivers/firmware/pcdp.c that references
UPF_RESOURCES.

In any event, trying to build a defconfig ia64 2.6.7-mm5 (which includes
CONFIG_SERIAL_8250=y in the .config) fails with:

drivers/firmware/pcdp.c: In function `setup_serial_console':
drivers/firmware/pcdp.c:100: error: `UPF_RESOURCES' undeclared (first use in this function)
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

radeonfb: the Stanford lock checker found us double-locking rinfo->reg_lock
via sequences like OUTPLL(foo, INPLL(bar) | baz ), as both OUTPLL and INPLL
grab the register lock.  This should fix the problem.

Signed-off-by: David Eger <eger@havoc.gtf.org
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Move inline avc_cache_stats helper functions alongside the statically declared
avc_cache_stats array.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

With gcc-3.5 from CVS:

security/selinux/avc.c:76: error: static declaration of 'avc_cache_stats' follows non-static declaration
security/selinux/include/avc.h:107: error: previous declaration of 'avc_cache_stats' was here
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

smp_changes_mask is used by generic_set_all() which isn't __init
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

With gcc from CVS:

sound/isa/wavefront/wavefront_fx.c:697: error: static declaration of 'page_zero' follows non-static declaration
include/sound/yss225.h:4: error: previous declaration of 'page_zero' was here
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

At the moment, we initialise physnode_map from the various BIOS tables,
which can create problems, as holes inside an node return 1 for pfn_valid,
and yet pfn_to_nid is not correct for them.  I'd hacked around this in my
tree by defaulting the mapping to 0, not -1, but that's not the correct fix
...  this is.

I consolidated all the code back into 1 place, and use node_start_pfn[] and
node_end_pfn[] to walk over it instead - that means it matches up perfectly
with lmem_map's as we're using the same data.  It also cleans up a lot of
the code.

Tested on both NUMA-Q and x440 ...  and it only affects i386 NUMA boxen.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

  CHECK   fs/udf/dir.c
fs/udf/dir.c:240:13: warning: expected lvalue for member dereference
[...]
  CHECK   fs/udf/namei.c
fs/udf/namei.c:872:6: warning: expected lvalue for member dereference
fs/udf/namei.c:916:6: warning: expected lvalue for member dereference
fs/udf/namei.c:1189:14: warning: expected lvalue for member dereference
fs/udf/namei.c:1234:7: warning: expected lvalue for member dereference
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch moves reboot related workarounds out of dmi_scan.c Please
consider applying.
Signed-off-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

rmk added a check to vmlinux for undefined symbols in -mm kernels.  ppc64
fails due to trying to export an unimplemented symbol from assembly code.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

A native powerpc64-linux gcc can not compile a ppc32 kernel properly.  This
patch fixes it.  It was copied from ppc64.  The change to vmlinux.lds.S
fixes this error:

ld: warning: powerpc:common architecture of input file `init/built-in.o' is
incompatible with powerpc:common64 output
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Currently our spinlocks can call into the hypervisor on dedicated processor
machines.  Doing this may slow our locks down, so avoid it where possible.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Here are the ppc64 specific gcc 3.5 fixes.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>