Eric Lee / smarc-fsl-linux-kernel

01 Jan, 2009

1 commit

17 Oct, 2008

3 commits

07 Sep, 2008

1 commit

25 Jul, 2008

1 commit

  • 27ac792ca   PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures ... Browse Code »

    On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit
    boundary. For example:

    u64 val = PAGE_ALIGN(size);

    always returns a value < 4GB even if size is greater than 4GB.

    The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for
    example):

    #define PAGE_SHIFT 12
    #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
    #define PAGE_MASK (~(PAGE_SIZE-1))
    ...
    #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)

    The "~" is performed on a 32-bit value, so everything in "and" with
    PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary.
    Using the ALIGN() macro seems to be the right way, because it uses
    typeof(addr) for the mask.

    Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in
    include/linux/mm.h.

    See also lkml discussion: http://lkml.org/lkml/2008/6/11/237

    [akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c]
    [akpm@linux-foundation.org: fix v850]
    [akpm@linux-foundation.org: fix powerpc]
    [akpm@linux-foundation.org: fix arm]
    [akpm@linux-foundation.org: fix mips]
    [akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c]
    [akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c]
    [akpm@linux-foundation.org: fix powerpc]
    Signed-off-by: Andrea Righi
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrea Righi
     

17 May, 2008

1 commit

04 May, 2008

1 commit

  • d35c7b0e5   unified (weak) sys_pipe implementation ... Browse Code »

    This replaces the duplicated arch-specific versions of "sys_pipe()" with
    one unified implementation. This removes almost 250 lines of duplicated
    code.

    It's marked __weak, so that *if* an architecture wants to override the
    default implementation it can do so by simply having its own replacement
    version, since many architectures use alternate calling conventions for
    the 'pipe()' system call for legacy reasons (ie traditional UNIX
    implementations often return the two file descriptors in registers)

    I still haven't changed the cris version even though Linus says the BKL
    isn't needed. The arch maintainer can easily do it if there are really
    no obstacles.

    Signed-off-by: Ulrich Drepper
    Signed-off-by: Linus Torvalds

    Ulrich Drepper
     

29 Apr, 2008

1 commit

17 Apr, 2008

1 commit

  • 64ac24e73   Generic semaphore implementation ... Browse Code »
    46

    Semaphores are no longer performance-critical, so a generic C
    implementation is better for maintainability, debuggability and
    extensibility. Thanks to Peter Zijlstra for fixing the lockdep
    warning. Thanks to Harvey Harrison for pointing out that the
    unlikely() was unnecessary.

    Signed-off-by: Matthew Wilcox
    Acked-by: Ingo Molnar

    Matthew Wilcox
     

24 Feb, 2008

2 commits

09 Feb, 2008

1 commit

08 Feb, 2008

1 commit

  • 72a7fe396   Introduce flags for reserve_bootmem() ... Browse Code »

    This patchset adds a flags variable to reserve_bootmem() and uses the
    BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
    between crashkernel area and already used memory.

    This patch:

    Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
    If that flag is set, the function returns with -EBUSY if the memory already
    has been reserved in the past. This is to avoid conflicts.

    Because that code runs before SMP initialisation, there's no race condition
    inside reserve_bootmem_core().

    [akpm@linux-foundation.org: coding-style fixes]
    [akpm@linux-foundation.org: fix powerpc build]
    Signed-off-by: Bernhard Walle
    Cc:
    Cc: "Eric W. Biederman"
    Cc: Vivek Goyal
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bernhard Walle
     

07 Feb, 2008

1 commit

29 Jan, 2008

1 commit

20 Oct, 2007

2 commits

17 Oct, 2007

1 commit

  • cba4fbbff   remove include/asm-*/ipc.h ... Browse Code »

    All asm/ipc.h files do only #include .

    This patch therefore removes all include/asm-*/ipc.h files and moves the
    contents of include/asm-generic/ipc.h to include/linux/ipc.h.

    Signed-off-by: Adrian Bunk
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

23 Aug, 2007

1 commit

18 Jul, 2007

1 commit

  • f284ce726   PTRACE_POKEDATA consolidation ... Browse Code »

    Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata()
    function.

    AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless
    return EPERM.

    Signed-off-by: Alexey Dobriyan
    Cc: Christoph Hellwig
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

17 Jul, 2007

2 commits

01 Jun, 2007

1 commit

  • 8778beb98   h8300 trival patches ... Browse Code »

    - warning fix.
    - call trace area check fix.
    - There is no meaning, ' & ' it deletes

    Signed-off-by: Yoshinori Sato
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoshinori Sato
     

19 May, 2007

2 commits

11 May, 2007

1 commit

10 May, 2007

1 commit

  • f7e4217b0   rename thread_info to stack ... Browse Code »

    This finally renames the thread_info field in task structure to stack, so that
    the assumptions about this field are gone and archs have more freedom about
    placing the thread_info structure.

    Nonbroken archs which have a proper thread pointer can do the access to both
    current thread and task structure via a single pointer.

    It'll allow for a few more cleanups of the fork code, from which e.g. ia64
    could benefit.

    Signed-off-by: Roman Zippel
    [akpm@linux-foundation.org: build fix]
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Cc: Russell King
    Cc: Ian Molton
    Cc: Haavard Skinnemoen
    Cc: Mikael Starvik
    Cc: David Howells
    Cc: Yoshinori Sato
    Cc: "Luck, Tony"
    Cc: Hirokazu Takata
    Cc: Geert Uytterhoeven
    Cc: Roman Zippel
    Cc: Greg Ungerer
    Cc: Ralf Baechle
    Cc: Ralf Baechle
    Cc: Paul Mackerras
    Cc: Benjamin Herrenschmidt
    Cc: Heiko Carstens
    Cc: Martin Schwidefsky
    Cc: Paul Mundt
    Cc: Kazumoto Kojima
    Cc: Richard Curnow
    Cc: William Lee Irwin III
    Cc: "David S. Miller"
    Cc: Jeff Dike
    Cc: Paolo 'Blaisorblade' Giarrusso
    Cc: Miles Bader
    Cc: Andi Kleen
    Cc: Chris Zankel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Roman Zippel
     

09 May, 2007

1 commit

08 May, 2007

2 commits

  • c728d6045   h8300 generic irq ... Browse Code »

    h8300 using generic irq handler patch.

    Signed-off-by: Yoshinori Sato
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoshinori Sato
     
  • aeecf3142   Convert h8/300 to generic timekeeping ... Browse Code »

    Currently h8/300 does not implement sub-jiffy timekeeping, so there is no
    benefit to having arch specific timekeeping code.

    This patch simply removes those functions and enables the generic
    timekeeping code.

    Signed-off-by: John Stultz
    Acked-by: Yoshinori Sato
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    john stultz
     

20 Feb, 2007

1 commit

  • 6168a702a   [PATCH] Declare init_irq_proc before we use it. ... Browse Code »

    powerpc gets:

    init/main.c: In function `do_basic_setup':
    init/main.c:714: warning: implicit declaration of function `init_irq_proc'

    but we cannot include linux/irq.h in generic code.

    Fix it by moving the declaration into linux/interrupt.h instead.

    And make sure all code that defines init_irq_proc() is including
    linux/interrupt.h.

    And nuke an ifdef-in-C

    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

13 Feb, 2007

1 commit

12 Feb, 2007

3 commits

  • 5ea817699   [PATCH] sort the devres mess out ... Browse Code »

    * Split the implementation-agnostic stuff in separate files.
    * Make sure that targets using non-default request_irq() pull
    kernel/irq/devres.o
    * Introduce new symbols (HAS_IOPORT and HAS_IOMEM) defaulting to positive;
    allow architectures to turn them off (we needed these symbols anyway for
    dependencies of quite a few drivers).
    * protect the ioport-related parts of lib/devres.o with CONFIG_HAS_IOPORT.

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro
     
  • b035b6de2   [PATCH] Consolidate default sched_clock() ... Browse Code »

    Use attribute(weak).

    Signed-off-by: Alexey Dobriyan
    Acked-by: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     
  • 67d38229d   [PATCH] disable init/initramfs.c: architectures ... Browse Code »

    Update all arch/*/kernel/vmlinux.lds.S to not include space for initramfs
    when CONFIG_BLK_DEV_INITRAMFS is not selected. This saves another 4 kbytes
    on most platfoms (some reserve PAGE_SIZE for initramfs).

    Signed-off-by: Jean-Paul Saman
    Cc: Al Viro
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jean-Paul Saman
     

14 Dec, 2006

1 commit

  • 5cbded585   [PATCH] getting rid of all casts of k[cmz]alloc() calls ... Browse Code »

    Run this:

    #!/bin/sh
    for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
    echo "De-casting $f..."
    perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
    done

    And then go through and reinstate those cases where code is casting pointers
    to non-pointers.

    And then drop a few hunks which conflicted with outstanding work.

    Cc: Russell King , Ian Molton
    Cc: Mikael Starvik
    Cc: Yoshinori Sato
    Cc: Roman Zippel
    Cc: Geert Uytterhoeven
    Cc: Ralf Baechle
    Cc: Paul Mackerras
    Cc: Kyle McMartin
    Cc: Benjamin Herrenschmidt
    Cc: Martin Schwidefsky
    Cc: "David S. Miller"
    Cc: Jeff Dike
    Cc: Greg KH
    Cc: Jens Axboe
    Cc: Paul Fulghum
    Cc: Alan Cox
    Cc: Karsten Keil
    Cc: Mauro Carvalho Chehab
    Cc: Jeff Garzik
    Cc: James Bottomley
    Cc: Ian Kent
    Cc: Steven French
    Cc: David Woodhouse
    Cc: Neil Brown
    Cc: Jaroslav Kysela
    Cc: Takashi Iwai
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robert P. J. Day
     

08 Dec, 2006

3 commits

  • 4522d5827   Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 ... Browse Code »

    * 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits)
    [PATCH] x86-64: Export smp_call_function_single
    [PATCH] i386: Clean up smp_tune_scheduling()
    [PATCH] unwinder: move .eh_frame to RODATA
    [PATCH] unwinder: fully support linker generated .eh_frame_hdr section
    [PATCH] x86-64: don't use set_irq_regs()
    [PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq
    [PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM
    [PATCH] i386: replace kmalloc+memset with kzalloc
    [PATCH] x86-64: remove remaining pc98 code
    [PATCH] x86-64: remove unused variable
    [PATCH] x86-64: Fix constraints in atomic_add_return()
    [PATCH] x86-64: fix asm constraints in i386 atomic_add_return
    [PATCH] x86-64: Correct documentation for bzImage protocol v2.05
    [PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code
    [PATCH] x86-64: Fix numaq build error
    [PATCH] x86-64: include/asm-x86_64/cpufeature.h isn't a userspace header
    [PATCH] unwinder: Add debugging output to the Dwarf2 unwinder
    [PATCH] x86-64: Clarify error message in GART code
    [PATCH] x86-64: Fix interrupt race in idle callback (3rd try)
    [PATCH] x86-64: Remove unwind stack pointer alignment forcing again
    ...

    Fixed conflict in include/linux/uaccess.h manually

    Signed-off-by: Linus Torvalds

    Linus Torvalds
     
  • 7dfb71030   [PATCH] Add include/linux/freezer.h and move definitions from sched.h ... Browse Code »

    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

    Nigel Cunningham
     
  • 3869aa292   [PATCH] h8300 stray bracket fix ... Browse Code »

    Signed-off-by: Mariusz Kozlowski
    Cc: Yoshinori Sato
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mariusz Kozlowski