The logic in shrink_slab tries to balance the proportion of slab which it
scans against the proportion of pagecache which the caller scanned.  Problem
is that with a large number of highmem LRU pages and a small number of lowmem
LRU pages, the amount of pagecache scanning appears to be very small, so we
don't push slab hard enough.

The patch changes things so that for, say, a GFP_KERNEL allocation attempt we
only consider ZONE_NORMAL and ZONE_DMA when calculating "what proportion of
the LRU did the caller just scan".

This will have the effect of shrinking slab harder in response to GFP_KERNEL
allocations than for GFP_HIGHMEM allocations.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Currently, ppc32 will not always compile with binutils-2.15.  The issue
is that binutils has become even more strict about which opcodes can be
used with which CPU flags.  The problem is that we have a number of
cases where we compile with altivec instructions (with runtime checks to
make sure we can actually run them) in code that's not altivec specific.

The fix for this is to always pass in -maltivec on CONFIG_6xx.  To do
this cleanly, we split our AFLAGS definition up into
aflags-$(CONFIG_FOO).
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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

all sorts of minor stuff - basically, all chunks are independent here,
but IMO that one is not worth splitting.  Contains:
	* pmac_cpufreq.c: declaration in the middle of a block.
	* sys_ia32.c: couple of trivial annotations.
	* ipmi_si_intf.c: should be using asm/irq.h instead of linux/irq.h
	* synclink_cs.c: assignment-in-conditional with nobody ever looking
at the variable we are assigning to afterwards; variable removed.
	* sbni.c: s/__volatile/__volatile__
	* matroxfb_base.h: got rid of ((u32 *)p)++
	* asm-ppc/checksum.h and asm-sparc64/floppy.h: NULL noise removal
	* amd64 compat.h: missing L in long constant.
	* mtd-abi.h: annotated ioctl structure
	* sysctl.c: corrected annotations in extern
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

code using atm_cirange fields assumes that they are signed; make that
explicit by s/char/signed char/.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

more size_t fixes (%d -> %zd)
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/net BROKEN_ON_SMP annotations and NULL noise removals.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

annotations and NULL noise removals in drivres/isdn (more BROKEN_ON_SMP
stuff)
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Usual set of initial annotations for a platform.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

the rest of BROKEN_ON_SMP drivers in drivers/char sparsified.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

stallion annotated, cleaned up, a bunch of useless verify_area()
removed.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

istallion annotated, cleaned up, a bunch of useless verify_area()
removed.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ftape got annotations and NULL noise removals.
Propagated the dependency on alpha/i386/amd64 to Kconfig (it's already
enforced by #error)
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

* in ipv6/route.c: made ipv6_advmss() inlined again (and moved it up)
* in sunrpc/xprt.c: inlining fix: moved do_xprt_reserve() up
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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

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

bte.c:
  After working with the chip designer some more, we have determined one
  more hardware register we were supposed to write to ensure the SHUB
  chip was ready for future transfers.  This patch fixes that.  This also
  allowed us to eliminate a udelay which was working around the problem.

  During retesting, we uncovered a race condition where transfer status
  was changed by a different cpu after we were expecting one value which
  cascaded to additional problems.  This patch uses a local variable to
  also eliminate that race.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

  move sn_debug_printf to only compile for DEBUG
  early printk needs to handle missing carriage returns
Signed-off-by: Pat Gefre <pfg@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

into nuts.davemloft.net:/disk1/BK/sparc-2.6

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

fb_set_cmap() and fb_copy_cmap() split into kernel and userland versions.
fb_cmap, fb_image and fb_cursor split and annotated.
fixed bug in sbuslib.c that used to call "userland" version of fb_set_cmap()
when kernel one was need (RGB data was already copied into kernel space).
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Massive leaks fixed in fb_cursor().
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

->vc_font switched to console_font (from console_font_op, of all things!)
console_font_op annotated (->data is finally makred __user).
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

->con_font_get() sanitized.  We pass console_font * to method instead of
console_font_op * and do not mess with mixing ->data in these guys.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

	fbcon internal cleanup.  Instead of passing console_font_op into
fbcon_do_set_font() we pass width/height directly.  Amusing (but harmless)
bug fixed there:
	if (!w > 32) {
		bogus code that fortunately never got triggered
	}
Fixed by removal of the junk in question (and yes, it's verifiable junk -
it would not do anything even if we replaced the check with intended
!(w > 32)).
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

con_font_set() sanitized.  We are passing console_font and flags into
the method in separate arguments and we are not messing with
console_font_op->data anymore - it's a userland pointer (to be annotated
several patches later in the series, due to another abuse of console_font_op
that needs to be fixed first), while console_font->data is kernel one
and they don't mix anymore.

We also do a sanity check (font width > 0) in the caller instead of
method instances, since we are already checking for width <= 32 and
height <= 32 there; doesn't make sense leaving that one in method
instances.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

->con_font_copy() sanitized.  We extract the number of console to copy the
font from in the caller (it's taken from the field of console_font_op that
is normally used for font height - messy even for an ioctl, but that animal
used to be passed all the way down into console drivers).

With decoding done in con_font_copy(), we simply pass source console number
into the method.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

->con_font_default() sanitized.  We copy font name (if any) from userland
in the caller and pass it explicitly.  We are also beginning to get rid
of console_font_op in method arguments.
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Preparations for cleanups: con_font_op() is turned into a switch calling
con_font_{get,set,default,copy} depending on the operation required;
method ->con_font_op() also split, with NULL resulting in -ENOSYS on
operation in question.

Code that used to be in con_font_op() got slightly cleaned up after move
into new helpers (we are beginning to untangle the mess; there will be
more cleanups in the next patches).

Methods are currently using exact same arguments as old ->con_font_op().
That will change in subsequent patches, method by method (right now there's
a hell of a scary field reuse between them, making impossible to do any
static checks and practically begging for bugs).
Signed-off-by: Al Viro <viro@parcelfarce.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The ppc64 implementation of memcpy_to/from_io was bogus (used memcpy
which uses cache hints and thus is broken on non cacheable IO space).

This re-implements them with some simple/gross C code doing 32 bits
accesses when aligned and bytes accesses when not. 
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This fixes some possible rare issues with the hash code beeing called
with interrupts enabled from update_mmu_cache, and fixes some races in
the iSeries low level htab code by adding an array of spinlocks

This is actually an old patch already present in SLES kernel and that
got "missed" somewhat in the main tree, adapted to recent changes.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Spotted by Jack Spaar <jspaar@myrealbox.com>
Signed-off-by: David S. Miller <davem@redhat.com>

Signed-off-by: Steve French (sfrench@us.ibm.com)

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

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