This fixes a threading/ptrace bug noticed by the gdb people: when a
thread is ptraced but other threads in the thread group are not then a
SIGTRAP (via int3 or any of the other debug traps) causes the child
thread(s) to die unexpectedly.  This is because the default behavior for
a no-handler SIGTRAP is to broadcast it.

The solution is to make all such signals specific, then the ptracer (gdb)
can filter the signal and upon continuation it's being handled properly
(or put on the shared signal queue). SIGKILL and SIGSTOP are an exception.
The patch only affects threaded and ptrace-d processes.

Robert made me notice that I forgot an explicit debugging printk()
inside the epoll module.

o Make the printk() to be debugging

This (from wli & myself) was overlooked for 2.5.51.  Without this fix,
sysfs panics when registering topology for NUMA boxen.

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

This renames more types and moves them into asm/compat.h and also
consolidates sys32_new{stat,fstat,lstat}.

Given Ralf's blessing, here is the mips64 part of the initial compatibility
syscall layer.

This patch creates compat_sys_times and a few more compability types.

This is the backwards compatibility code for MODULE_PARM, and moves
__MODULE_STRING() down to the graveyard at the bottom of module.h.

It's complicated by the fact that many modules place MODULE_PARM()
before the declaration (some do MODULE_PARM() for non-existant
variables, too).  To avoid breaking them, we have to do the name
lookups at load time, rather than just storing a pointer 8(

CONFIG_OBSOLETE_MODPARM is set to y without prompting: it's a useful
marker for deprecating in 2.7.

This activates parameter parsing for module_param() declarations in modules.

This patch is a rewrite of the insmod and boot parameter handling,
to unify them.

The new format is fairly simple: built on top of __module_param_call there
are several helpers, eg "module_param(foo, int, 000)".  The final argument
is the permissions bits, for exposing parameters in sysfs (if
non-zero) at a later stage.

I need to initialise the ad1848 driver before attempting attach/probe
from dependent drivers (e.g.  opl3sa2)

Fix for the compatibility layer for NULL 'remaining time' pointer.

Add sys_wait4 to the list of exported functions.

Warning fixes: remove an unused variable and make bitops complain if the
pointer isn't of type long. Make 31 bit BUG() emit 4 0-bytes instead of 2.
This improves the readability of the listing.

Make some functions and variables static.

Remove last remaining file of the old tape driver.

Fix return value of __put_user_asm_8.

Start of chsc interface cleanup. Fix for a race condition in do_IRQ.
Fix device reference counting.

sys_restart_syscall for nanosleep restarting.

Makefile changes by Sam Ravnborg. Summary of changes:
o Added FORCE prerequisite in boot/Makefile
o Do not use shorthand targets when calling the boot/Makefile
o No longer use BOOT_IMAGE, not needed now
o Use kbuild clean infrastructure when cleaning up in boot
o Offset generation shrinked with one rule
o removed inclusion of Rules.make in all Makefiles
o no longer use the descend macro, use $(Q)$(MAKE) as replacement

hch moved around to work for SGI..

This patch moves the Kconfig entries for CPUfreq from "Processor type and
features" to "Power management options".

This patch moves some basic per-CPU static information (minimum frequency,
maximum frequency and maximum transition latency) into a struct
cpufreq_cpuinfo. This offers a much cleaner struct cpufreq_driver and
struct cpufreq_policy.

Kill unused variable and simplify assembly portion a bit...

gcc3.2 is a bit more pedantic...

sr_ioctl.c uses virt_to_phys, which is defined in asm/io.h.
On x86, this accidentally works, due to other indirect includes,
but on Alpha results in a link error.

This fixes one more threaded-coredumps detail reported by the glibc
people: all threads taken down by the coredump code should report the
proper exit code.  We can do this rather easily via the group_exit
mechanism.  'Other' threads used to report SIGKILL, which was highly
confusing as the shell often displayed the 'Killed' message instead of a
'Segmentation fault' message.

Another missing bit was the 0x80 bit set in the exit status for all
threads, if the coredump was successful.  (it's safe to set this bit in
->sig->group_exit_code in an unlocked way because all threads are
artificially descheduled by the coredump code.)

Moves console_loglevel & friends to an array, as sysctl expects.

Makefiles no longer need to include Rules.make, which is currently an
empty file.  This patch removes it from the remaining Makefiles, and
removes the empty Rules.make file.

Makefiles no longer need to include Rules.make, which is currently an
empty file.  This patch removes it from the drivers tree Makefiles.

Makefiles no longer need to include Rules.make, which is currently an
empty file.  This patch removes it from the arch tree Makefiles.

This contains the following changes for the SCSI tape driver in 2.5.51:
- fix module bugs that prevent finding any devices
- allow opening a device with O_NONBLOCK | O_RDWR even if the tape in drive
  is write protected

Remove the unused vm_area_struct.vm_raend.

If someone wants to tune per-VMA readaround then they can alter
vma->vm_file->f_ra.ra_pages.

It is missing a brelse() on an error path.

Fetch the next cacheline as we're counting up the fields in this one.

The optimisation for synchronous mounts was only correct for S_ISREG
files.  Directories do not pass through generic_osync_inode() and we
still need to synchronously write out their indirect blocks.

In PAE mode there is a 4-byte gap and they're not aligning correctly.

From Hugh.

Be consistent in deciding when we are below the zone allocation
thresholds.

From Hugh.

Be more explicit in the "can we sleep" test.  It doesn't change
anything unless someone is performing __GFP_IO && !__GFP_WAIT
allocations, which is nonsensical.