Doug / smarc-fsl-linux-kernel

05 Aug, 2010

2 commits

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

27 Feb, 2010

4 commits

12 Jan, 2010

1 commit

  • 4b529401c   mm: make totalhigh_pages unsigned long ... Browse Code »

    Makes it consistent with the extern declaration, used when CONFIG_HIGHMEM
    is set Removes redundant casts in printout messages

    Signed-off-by: Andreas Fenkart
    Acked-by: Russell King
    Cc: Ralf Baechle
    Cc: David Howells
    Cc: Ingo Molnar
    Cc: Thomas Gleixner
    Cc: "H. Peter Anvin"
    Cc: Chen Liqin
    Cc: Lennox Wu
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andreas Fenkart
     

02 Nov, 2009

1 commit

  • f45e51836   MIPS: Add IRQF_TIMER flag for timer interrupts ... Browse Code »

    Along the lines of d6c585a4342a2ff627a29f9aea77c5ed4cd76023, add IRQF_TIMER
    flag for all timer interrupts This ensures that timer interrupts won't be
    disabled on suspend and not threaded for PREEMPT_RT.

    Signed-off-by: Wu Zhangjin
    Acked-by: Thomas Gleixner
    Signed-off-by: Ralf Baechle

    Wu Zhangjin
     

01 Oct, 2009

1 commit

  • b533e652d   MIPS: SMP: Fix build. ... Browse Code »

    commit 48a048fed82a8e5fdd8618574f6d3de1a0d67a50
    Author: Rusty Russell
    Date: Thu Sep 24 09:34:44 2009 -0600

    apparently only passed the "looks good" level of QA ;-)

    Signed-off-by: Ralf Baechle

    Ralf Baechle
     

24 Sep, 2009

2 commits

25 Jun, 2009

1 commit

22 Apr, 2009

1 commit

  • 8e19608e8   clocksource: pass clocksource to read() callback ... Browse Code »

    Pass clocksource pointer to the read() callback for clocksources. This
    allows us to share the callback between multiple instances.

    [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
    [akpm@linux-foundation.org: cleanup]
    Signed-off-by: Magnus Damm
    Acked-by: John Stultz
    Cc: Thomas Gleixner
    Signed-off-by: Hugh Dickins
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Magnus Damm
     

04 Apr, 2009

1 commit

  • 811158b14   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial ... Browse Code »

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)
    trivial: Update my email address
    trivial: NULL noise: drivers/mtd/tests/mtd_*test.c
    trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h
    trivial: Fix misspelling of "Celsius".
    trivial: remove unused variable 'path' in alloc_file()
    trivial: fix a pdlfush -> pdflush typo in comment
    trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL
    trivial: wusb: Storage class should be before const qualifier
    trivial: drivers/char/bsr.c: Storage class should be before const qualifier
    trivial: h8300: Storage class should be before const qualifier
    trivial: fix where cgroup documentation is not correctly referred to
    trivial: Give the right path in Documentation example
    trivial: MTD: remove EOL from MODULE_DESCRIPTION
    trivial: Fix typo in bio_split()'s documentation
    trivial: PWM: fix of #endif comment
    trivial: fix typos/grammar errors in Kconfig texts
    trivial: Fix misspelling of firmware
    trivial: cgroups: documentation typo and spelling corrections
    trivial: Update contact info for Jochen Hein
    trivial: fix typo "resgister" -> "register"
    ...

    Linus Torvalds
     

31 Mar, 2009

1 commit

  • d17abcd54   Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask:
    oprofile: Thou shalt not call __exit functions from __init functions
    cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic
    cpumask: remove cpumask_t from core
    cpumask: convert rcutorture.c
    cpumask: use new cpumask_ functions in core code.
    cpumask: remove references to struct irqaction's mask field.
    cpumask: use mm_cpumask() wrapper: kernel/fork.c
    cpumask: use set_cpu_active in init/main.c
    cpumask: remove node_to_first_cpu
    cpumask: fix seq_bitmap_*() functions.
    cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL

    Linus Torvalds
     

30 Mar, 2009

3 commits

13 Dec, 2008

2 commits

  • 320ab2b0b   cpumask: convert struct clock_event_device to cpumask pointers. ... Browse Code »

    Impact: change calling convention of existing clock_event APIs

    struct clock_event_timer's cpumask field gets changed to take pointer,
    as does the ->broadcast function.

    Another single-patch change. For safety, we BUG_ON() in
    clockevents_register_device() if it's not set.

    Signed-off-by: Rusty Russell
    Cc: Ingo Molnar

    Rusty Russell
     
  • 98a79d6a5   cpumask: centralize cpu_online_map and cpu_possible_map ... Browse Code »

    Impact: cleanup

    Each SMP arch defines these themselves. Move them to a central
    location.

    Twists:
    1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
    CONFIG_INIT_ALL_POSSIBLE for this rather than break them.

    2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
    Those archs simply have phys_cpu_present_map replaced everywhere.

    3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
    so I just manipulate them both in sync.

    4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
    declarations.

    Signed-off-by: Rusty Russell
    Reviewed-by: Grant Grundler
    Tested-by: Tony Luck
    Acked-by: Ingo Molnar
    Cc: Mike Travis
    Cc: ink@jurassic.park.msu.ru
    Cc: rmk@arm.linux.org.uk
    Cc: starvik@axis.com
    Cc: tony.luck@intel.com
    Cc: takata@linux-m32r.org
    Cc: ralf@linux-mips.org
    Cc: grundler@parisc-linux.org
    Cc: paulus@samba.org
    Cc: schwidefsky@de.ibm.com
    Cc: lethal@linux-sh.org
    Cc: wli@holomorphy.com
    Cc: davem@davemloft.net
    Cc: jdike@addtoit.com
    Cc: mingo@redhat.com

    Rusty Russell
     

15 Oct, 2008

1 commit

31 Jul, 2008

1 commit

25 Jul, 2008

2 commits

  • 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
     
  • b61bfa3c4   mm: move bootmem descriptors definition to a single place ... Browse Code »

    There are a lot of places that define either a single bootmem descriptor or an
    array of them. Use only one central array with MAX_NUMNODES items instead.

    Signed-off-by: Johannes Weiner
    Acked-by: Ralf Baechle
    Cc: Ingo Molnar
    Cc: Richard Henderson
    Cc: Russell King
    Cc: Tony Luck
    Cc: Hirokazu Takata
    Cc: Geert Uytterhoeven
    Cc: Kyle McMartin
    Cc: Paul Mackerras
    Cc: Paul Mundt
    Cc: David S. Miller
    Cc: Yinghai Lu
    Cc: Christoph Lameter
    Cc: Mel Gorman
    Cc: Andy Whitcroft
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Johannes Weiner
     

16 Jul, 2008

1 commit

06 Jun, 2008

3 commits

12 May, 2008

1 commit

19 Apr, 2008

1 commit

12 Mar, 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
     

03 Feb, 2008

1 commit

29 Jan, 2008

1 commit

03 Nov, 2007

1 commit

30 Oct, 2007

1 commit

23 Oct, 2007

1 commit

19 Oct, 2007

1 commit

12 Oct, 2007

1 commit