linux.git/arch/frv, branch v2.6.20

[PATCH] sysctl: remove unused "context" param

2006-12-10T17:55:41+00:00

Signed-off-by: Alexey Dobriyan 
Cc: Andi Kleen 
Cc: "David S. Miller" 
Cc: David Howells 
Cc: Ralf Baechle 
Cc: "Eric W. Biederman" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] LOG2: Implement a general integer log2 facility in the kernel

2006-12-08T16:28:51+00:00

This facility provides three entry points:

	ilog2()		Log base 2 of unsigned long
	ilog2_u32()	Log base 2 of u32
	ilog2_u64()	Log base 2 of u64

These facilities can either be used inside functions on dynamic data:

	int do_something(long q)
	{
		...;
		y = ilog2(x)
		...;
	}

Or can be used to statically initialise global variables with constant values:

	unsigned n = ilog2(27);

When performing static initialisation, the compiler will report "error:
initializer element is not constant" if asked to take a log of zero or of
something not reducible to a constant.  They treat negative numbers as
unsigned.

When not dealing with a constant, they fall back to using fls() which permits
them to use arch-specific log calculation instructions - such as BSR on
x86/x86_64 or SCAN on FRV - if available.

[akpm@osdl.org: MMC fix]
Signed-off-by: David Howells 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Herbert Xu 
Cc: David Howells 
Cc: Wojtek Kaniewski 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] struct path: convert frv

2006-12-08T16:28:45+00:00

Signed-off-by: Josef Sipek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] initrd: remove unused false condition for initrd_start

2006-12-07T16:39:38+00:00

After LOADER_TYPE && INITRD_START are true, the short if-condition
for INITRD_START can never be false.

Remove unused code from the else condition.

Signed-off-by: Henry Nestler 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Add include/linux/freezer.h and move definitions from sched.h

2006-12-07T16:39:27+00:00

Move process freezing functions from include/linux/sched.h to freezer.h, so
that modifications to the freezer or the kernel configuration don't require
recompiling just about everything.

[akpm@osdl.org: fix ueagle driver]
Signed-off-by: Nigel Cunningham 
Cc: "Rafael J. Wysocki" 
Cc: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] arch/frv/kernel/futex.c must #include

2006-12-07T16:39:26+00:00

This patch fixes the following compile error with
-Werror-implicit-function-declaration
(without -Werror-implicit-function-declaration it's a link error):

    ...
      CC      arch/frv/kernel/futex.o
    /home/bunk/linux/kernel-2.6/linux-2.6.19-rc6-mm2/arch/frv/kernel/futex.c:
    In function 'futex_atomic_op_inuser':
    /home/bunk/linux/kernel-2.6/linux-2.6.19-rc6-mm2/arch/frv/kernel/futex.c:203:
    error: implicit declaration of function 'pagefault_disable'
    /home/bunk/linux/kernel-2.6/linux-2.6.19-rc6-mm2/arch/frv/kernel/futex.c:226:
    error: implicit declaration of function 'pagefault_enable'
    make[2]: *** [arch/frv/kernel/futex.o] Error 1
    ...

Signed-off-by: Adrian Bunk 
Acked-by: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] slab: remove kmem_cache_t

2006-12-07T16:39:25+00:00

Replace all uses of kmem_cache_t with struct kmem_cache.

The patch was generated using the following script:

	#!/bin/sh
	#
	# Replace one string by another in all the kernel sources.
	#

	set -e

	for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
		quilt add $file
		sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
		mv /tmp/$$ $file
		quilt refresh
	done

The script was run like this

	sh replace kmem_cache_t "struct kmem_cache"

Signed-off-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] mm: pagefault_{disable,enable}()

2006-12-07T16:39:21+00:00

Introduce pagefault_{disable,enable}() and use these where previously we did
manual preempt increments/decrements to make the pagefault handler do the
atomic thing.

Currently they still rely on the increased preempt count, but do not rely on
the disabled preemption, this might go away in the future.

(NOTE: the extra barrier() in pagefault_disable might fix some holes on
       machines which have too many registers for their own good)

[heiko.carstens@de.ibm.com: s390 fix]
Signed-off-by: Peter Zijlstra 
Acked-by: Nick Piggin 
Cc: Martin Schwidefsky 
Signed-off-by: Heiko Carstens 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] mm: arch do_page_fault() vs in_atomic()

2006-12-07T16:39:21+00:00

In light of the recent pagefault and filemap_copy_from_user work I've gone
through all the arch pagefault handlers to make sure the inc_preempt_count()
'feature' works as expected.

Several sections of code (including the new filemap_copy_from_user) rely on
the fact that faults do not take locks under increased preempt count.

arch/x86_64 - good
arch/powerpc - good
arch/cris - fixed
arch/i386 - good
arch/parisc - fixed
arch/sh - good
arch/sparc - good
arch/s390 - good
arch/m68k - fixed
arch/ppc - good
arch/alpha - fixed
arch/mips - good
arch/sparc64 - good
arch/ia64 - good
arch/arm - fixed
arch/um - good
arch/avr32 - good
arch/h8300 - NA
arch/m32r - good
arch/v850 - good
arch/frv - fixed
arch/m68knommu - NA
arch/arm26 - fixed
arch/sh64 - fixed
arch/xtensa - good

Signed-off-by: Peter Zijlstra 
Acked-by: Nick Piggin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[NET]: FRV checksum annotations.

2006-12-03T05:23:03+00:00

* sanitize prototypes and annotate
* collapse csum_partial_copy

Signed-off-by: Al Viro 
Signed-off-by: David S. Miller