Eric Lee / smarc-fsl-linux-kernel

04 Dec, 2011

1 commit

  • 34f1bdee1   mn10300: switch to GENERIC_PCI_IOMAP ... Browse Code »

    The pci_iomap variant that arch/mn10300/unit-asb2305/pci-iomap.c
    uses differs from the generic one in that it does
    not use ioremap_nocache for PCI addresses.
    However, it turns out that PCI addresses are
    automatically noncached, so switching to ioremap_nocache
    and to the generic implementation is safe.

    Signed-off-by: Michael S. Tsirkin

    Michael S. Tsirkin
     

26 Oct, 2011

1 commit

  • 39adff5f6   Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Browse Code »

    * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
    time, s390: Get rid of compile warning
    dw_apb_timer: constify clocksource name
    time: Cleanup old CONFIG_GENERIC_TIME references that snuck in
    time: Change jiffies_to_clock_t() argument type to unsigned long
    alarmtimers: Fix error handling
    clocksource: Make watchdog reset lockless
    posix-cpu-timers: Cure SMP accounting oddities
    s390: Use direct ktime path for s390 clockevent device
    clockevents: Add direct ktime programming function
    clockevents: Make minimum delay adjustments configurable
    nohz: Remove "Switched to NOHz mode" debugging messages
    proc: Consider NO_HZ when printing idle and iowait times
    nohz: Make idle/iowait counter update conditional
    nohz: Fix update_ts_time_stat idle accounting
    cputime: Clean up cputime_to_usecs and usecs_to_cputime macros
    alarmtimers: Rework RTC device selection using class interface
    alarmtimers: Add try_to_cancel functionality
    alarmtimers: Add more refined alarm state tracking
    alarmtimers: Remove period from alarm structure
    alarmtimers: Remove interval cap limit hack
    ...

    Linus Torvalds
     

05 Oct, 2011

1 commit

  • dcb69290a   time: Cleanup old CONFIG_GENERIC_TIME references that snuck in ... Browse Code »

    Awhile back I removed all the CONFIG_GENERIC_TIME referecnes as
    the last of the non-GENERIC_TIME arches were converted.

    However, due to the functionality being important and around for
    awhile, there apparently were some out of tree hardware enablement
    patches that used it and have since been merged.

    This patch removes the remaining instances of GENERIC_TIME.

    Singed-off-by: John Stultz

    John Stultz
     

28 Sep, 2011

1 commit

  • 395cf9691   doc: fix broken references ... Browse Code »

    There are numerous broken references to Documentation files (in other
    Documentation files, in comments, etc.). These broken references are
    caused by typo's in the references, and by renames or removals of the
    Documentation files. Some broken references are simply odd.

    Fix these broken references, sometimes by dropping the irrelevant text
    they were part of.

    Signed-off-by: Paul Bolle
    Signed-off-by: Jiri Kosina

    Paul Bolle
     

27 May, 2011

1 commit

  • 63e424c84   arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,BIT_LE,LAST_BIT} ... Browse Code »

    By the previous style change, CONFIG_GENERIC_FIND_NEXT_BIT,
    CONFIG_GENERIC_FIND_BIT_LE, and CONFIG_GENERIC_FIND_LAST_BIT are not used
    to test for existence of find bitops anymore.

    Signed-off-by: Akinobu Mita
    Acked-by: Greg Ungerer
    Cc: Arnd Bergmann
    Cc: Russell King
    Cc: Martin Schwidefsky
    Cc: Heiko Carstens
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     

30 Mar, 2011

1 commit

29 Mar, 2011

1 commit

19 Mar, 2011

6 commits

21 Jan, 2011

2 commits

  • b169c908a   mn10300: Use generic irq Kconfig ... Browse Code »

    No functional change.

    Signed-off-by: Thomas Gleixner
    Acked-by: David Howells

    Thomas Gleixner
     
  • 1c77ff22f   genirq: Remove __do_IRQ ... Browse Code »

    All architectures are finally converted. Remove the cruft.

    Signed-off-by: Thomas Gleixner
    Cc: Richard Henderson
    Cc: Mike Frysinger
    Cc: David Howells
    Cc: Tony Luck
    Cc: Greg Ungerer
    Cc: Michal Simek
    Acked-by: David Howells
    Cc: Kyle McMartin
    Acked-by: Benjamin Herrenschmidt
    Cc: Chen Liqin
    Cc: "David S. Miller"
    Cc: Chris Metcalf
    Cc: Jeff Dike

    Thomas Gleixner
     

14 Jan, 2011

1 commit

  • 351f8f8e6   kernel: clean up USE_GENERIC_SMP_HELPERS ... Browse Code »

    For arch which needs USE_GENERIC_SMP_HELPERS, it has to select
    USE_GENERIC_SMP_HELPERS, rather than leaving a choice to user, since they
    don't provide their own implementions.

    Also, move on_each_cpu() to kernel/smp.c, it is strange to put it in
    kernel/softirq.c.

    For arch which doesn't use USE_GENERIC_SMP_HELPERS, e.g. blackfin, only
    on_each_cpu() is compiled.

    Signed-off-by: Amerigo Wang
    Cc: David Howells
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Cc: "H. Peter Anvin"
    Cc: Yinghai Lu
    Cc: Peter Zijlstra
    Cc: Randy Dunlap
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Amerigo Wang
     

29 Oct, 2010

1 commit

  • 51399a391   Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 ... Browse Code »

    * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (38 commits)
    kbuild: convert `arch/tile' to the kconfig mainmenu upgrade
    README: cite nconfig
    Revert "kconfig: Temporarily disable dependency warnings"
    kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
    kconfig: Fix realloc usage()
    kconfig: Propagate const
    kconfig: Don't go out from read config loop when you read new symbol
    kconfig: fix menuconfig on debian lenny
    kbuild: migrate all arch to the kconfig mainmenu upgrade
    kconfig: expand file names
    kconfig: use the file's name of sourced file
    kconfig: constify file name
    kconfig: don't emit warning upon rootmenu's prompt redefinition
    kconfig: replace KERNELVERSION usage by the mainmenu's prompt
    kconfig: delay gconf window initialization
    kconfig: expand by default the rootmenu's prompt
    kconfig: add a symbol string expansion helper
    kconfig: regen parser
    kconfig: implement the `mainmenu' directive
    kconfig: allow PACKAGE to be defined on the compiler's command-line
    ...

    Fix up trivial conflict in arch/mn10300/Kconfig

    Linus Torvalds
     

28 Oct, 2010

12 commits

12 Oct, 2010

1 commit

24 Sep, 2010

1 commit

20 Sep, 2010

1 commit

27 Jul, 2010

1 commit

  • 592913ecb   time: Kill off CONFIG_GENERIC_TIME ... Browse Code »

    Now that all arches have been converted over to use generic time via
    clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME
    config option and simplify the generic code.

    Signed-off-by: John Stultz
    LKML-Reference:
    Signed-off-by: Thomas Gleixner

    John Stultz
     

13 Mar, 2010

1 commit

  • f7a56575f   mn10300: Convert mn10300 to use read/update_persistent_clock ... Browse Code »

    This patch converts the mn10300 architecture to use the generic
    read_persistent_clock and update_persistent_clock interfaces, reducing
    the amount of arch specific code we have to maintain, and allowing for
    further cleanups in the future.

    I have not built or tested this patch, so help from arch maintainers
    would be appreciated.

    Signed-off-by: John Stultz
    Cc: David Howells
    Cc: Koichi Yasutake
    Cc: Andrew Morton
    LKML-Reference:
    Signed-off-by: Thomas Gleixner

    John Stultz
     

12 Jun, 2009

1 commit

10 Apr, 2009

1 commit

  • 62b8e680e   MN10300: Kill MN10300's own profiling Kconfig ... Browse Code »

    Kill MN10300's own profiling Kconfig as this is superfluous given that the
    profiling options have moved to init/Kconfig and arch/Kconfig. Not only is
    this now superfluous, but the dependencies are not correct.

    Signed-off-by: David Howells
    Signed-off-by: Linus Torvalds

    David Howells
     

21 Feb, 2009

1 commit

  • 58bafe72a   mn10300: fix oprofile ... Browse Code »

    oprofile for MN10300 seems to have been broken by the advent of the new
    tracing framework.

    Signed-off-by: David Howells
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     

20 Oct, 2008

1 commit

  • dc52ddc0e   container freezer: implement freezer cgroup subsystem ... Browse Code »

    This patch implements a new freezer subsystem in the control groups
    framework. It provides a way to stop and resume execution of all tasks in
    a cgroup by writing in the cgroup filesystem.

    The freezer subsystem in the container filesystem defines a file named
    freezer.state. Writing "FROZEN" to the state file will freeze all tasks
    in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in
    the cgroup. Reading will return the current state.

    * Examples of usage :

    # mkdir /containers/freezer
    # mount -t cgroup -ofreezer freezer /containers
    # mkdir /containers/0
    # echo $some_pid > /containers/0/tasks

    to get status of the freezer subsystem :

    # cat /containers/0/freezer.state
    RUNNING

    to freeze all tasks in the container :

    # echo FROZEN > /containers/0/freezer.state
    # cat /containers/0/freezer.state
    FREEZING
    # cat /containers/0/freezer.state
    FROZEN

    to unfreeze all tasks in the container :

    # echo RUNNING > /containers/0/freezer.state
    # cat /containers/0/freezer.state
    RUNNING

    This is the basic mechanism which should do the right thing for user space
    task in a simple scenario.

    It's important to note that freezing can be incomplete. In that case we
    return EBUSY. This means that some tasks in the cgroup are busy doing
    something that prevents us from completely freezing the cgroup at this
    time. After EBUSY, the cgroup will remain partially frozen -- reflected
    by freezer.state reporting "FREEZING" when read. The state will remain
    "FREEZING" until one of these things happens:

    1) Userspace cancels the freezing operation by writing "RUNNING" to
    the freezer.state file
    2) Userspace retries the freezing operation by writing "FROZEN" to
    the freezer.state file (writing "FREEZING" is not legal
    and returns EIO)
    3) The tasks that blocked the cgroup from entering the "FROZEN"
    state disappear from the cgroup's set of tasks.

    [akpm@linux-foundation.org: coding-style fixes]
    [akpm@linux-foundation.org: export thaw_process]
    Signed-off-by: Cedric Le Goater
    Signed-off-by: Matt Helsley
    Acked-by: Serge E. Hallyn
    Tested-by: Matt Helsley
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Helsley
     

07 Sep, 2008

1 commit

11 May, 2008

1 commit

  • 8e3e076c5   BKL: revert back to the old spinlock implementation ... Browse Code »

    The generic semaphore rewrite had a huge performance regression on AIM7
    (and potentially other BKL-heavy benchmarks) because the generic
    semaphores had been rewritten to be simple to understand and fair. The
    latter, in particular, turns a semaphore-based BKL implementation into a
    mess of scheduling.

    The attempt to fix the performance regression failed miserably (see the
    previous commit 00b41ec2611dc98f87f30753ee00a53db648d662 'Revert
    "semaphore: fix"'), and so for now the simple and sane approach is to
    instead just go back to the old spinlock-based BKL implementation that
    never had any issues like this.

    This patch also has the advantage of being reported to fix the
    regression completely according to Yanmin Zhang, unlike the semaphore
    hack which still left a couple percentage point regression.

    As a spinlock, the BKL obviously has the potential to be a latency
    issue, but it's not really any different from any other spinlock in that
    respect. We do want to get rid of the BKL asap, but that has been the
    plan for several years.

    These days, the biggest users are in the tty layer (open/release in
    particular) and Alan holds out some hope:

    "tty release is probably a few months away from getting cured - I'm
    afraid it will almost certainly be the very last user of the BKL in
    tty to get fixed as it depends on everything else being sanely locked."

    so while we're not there yet, we do have a plan of action.

    Tested-by: Yanmin Zhang
    Cc: Ingo Molnar
    Cc: Andi Kleen
    Cc: Matthew Wilcox
    Cc: Alexander Viro
    Cc: Andrew Morton
    Signed-off-by: Linus Torvalds

    Linus Torvalds