linux.git/include/asm-i386, branch v2.6.22-rc4

i386: fix early usage of atomic_add_return and local_add_return on real i386

2007-05-24T03:14:15+00:00

The check (boot_cpu_data.x86 == 3) in atomic_add_return() and
local_add_return() fails, when those operations are used before
boot_cpu_data is filled in.

Change the check to (boot_cpu_data.x86 <= 3) to fix this.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Detach sched.h from mm.h

2007-05-21T16:18:19+00:00

First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.

This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
   getting them indirectly

Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
   they don't need sched.h
b) sched.h stops being dependency for significant number of files:
   on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
   after patch it's only 3744 (-8.3%).

Cross-compile tested on

	all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
	alpha alpha-up
	arm
	i386 i386-up i386-defconfig i386-allnoconfig
	ia64 ia64-up
	m68k
	mips
	parisc parisc-up
	powerpc powerpc-up
	s390 s390-up
	sparc sparc-up
	sparc64 sparc64-up
	um-x86_64
	x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig

as well as my two usual configs.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

i386: move common parts of smp into their own file

2007-05-15T15:54:00+00:00

Several parts of kernel/smp.c and smpboot.c are generally useful for other
subarchitectures and paravirt_ops implementations, so make them available for
reuse.

Signed-off-by: Jeremy Fitzhardinge 
Acked-by: Chris Wright 
Cc: James Bottomley 
Cc: Eric W. Biederman 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Revert "ipmi: add new IPMI nmi watchdog handling"

2007-05-14T22:24:24+00:00

This reverts commit f64da958dfc83335de1d2bef9d3868f30feb4e53.

Andi Kleen is unhappy with the changes, and they really do not seem
worth it.  IPMI could use DIE_NMI_IPI instead of the new callback, even
though that ends up having its own set of problems too, mainly because
the IPMI code cannot really know the NMI was from IPMI or not.

Manually fix up conflicts in arch/x86_64/kernel/traps.c and
drivers/char/ipmi/ipmi_watchdog.c.

Cc: Andi Kleen 
Cc: Mathieu Desnoyers 
Cc: Corey Minyard 
Cc: Andrew Morton 
Signed-off-by: Linus Torvalds

SLUB: i386 support

2007-05-12T18:26:22+00:00

SLUB cannot run on i386 at this point because i386 uses the page->private and
page->index field of slab pages for the pgd cache.

Make SLUB run on i386 by replacing the pgd slab cache with a quicklist.
Limit the changes as much as possible. Leave the improvised linked list in place
etc etc. This has been working here for a couple of weeks now.

Acked-by: William Lee Irwin III 
Signed-off-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

signal/timer/event: eventfd wire up x86 arches

2007-05-11T15:29:37+00:00

This patch wires the eventfd system call to the x86 architectures.

Signed-off-by: Davide Libenzi 
Cc: Michael Kerrisk 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

signal/timer/event: timerfd wire up x86 arches

2007-05-11T15:29:36+00:00

This patch wires the timerfd system call to the x86 architectures.

Signed-off-by: Davide Libenzi 
Cc: Andi Kleen 
Cc: Michael Kerrisk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

signal/timer/event: signalfd wire up x86 arches

2007-05-11T15:29:36+00:00

This patch wires the signalfd system call to the x86 architectures.

Signed-off-by: Davide Libenzi 
Cc: Michael Kerrisk 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Consolidate asm/poll.h

2007-05-11T15:29:34+00:00

These files are almost all the same.

This patch could be made even simpler if we don't mind POLLREMOVE turning
up in a few architectures that didn't have it previously (which should be
OK as POLLREMOVE is not used anywhere in the current tree).

Signed-off-by: Stephen Rothwell 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

i386: work around miscompilation of alternatives code

2007-05-11T15:29:32+00:00

A recent change makes my Dell 1501 hang on boot.  It's an AMD MK-36.  I use
an x86_64 kernel.  It is 100% reproducible.

I debugged this problem a bit and my compiler[1]interprets the =A constraint
as %rax instead of %edx:%eax on x86_64 which causes the problem.  The appended
patch provides a workaround for this and fixed the hang on my machine.

[1] gcc version 4.1.3 20070429 (prerelease) (Debian 4.1.2-5)

Signed-off-by: Joerg Roedel 
Cc: Andi Kleen 
Cc: Benny Halevy 
Cc: Pete Zaitcev 
Cc: "Joerg Roedel" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds