Eric Lee / smarc-fsl-linux-kernel

24 May, 2011

1 commit

12 Oct, 2010

1 commit

  • 7df01d96b   oprofile: disable write access to oprofilefs while profiler is running ... Browse Code »

    Oprofile counters are setup when profiling is disabled. Thus, writing
    to oprofilefs has no immediate effect. Changes are updated only after
    oprofile is reenabled.

    To keep userland and kernel states synchronized, we now allow
    configuration of oprofile only if profiling is disabled. In this case
    it checks if the profiler is running and then disables write access to
    oprofilefs by returning -EBUSY. The change should be backward
    compatible with current oprofile userland daemon.

    Acked-by: Maynard Johnson
    Cc: William Cohen
    Cc: Suravee Suthikulpanit
    Signed-off-by: Robert Richter

    Robert Richter
     

31 Aug, 2010

1 commit

  • 979048e1f   oprofile: don't call arch exit code from init code on failure ... Browse Code »

    oprofile_init calls oprofile_arch_init to initialise the architecture-specific
    backend code. If this backend code returns failure, oprofile_arch_exit is
    called immediately, making it difficult to allocate and free resources
    correctly.

    This patch removes the oprofile_arch_exit call from oprofile_init,
    meaning that all architectures must ensure that oprofile_arch_init
    cleans up any mess it's made before returning an error. As far as
    I can tell, this only affects the code for ARM.

    Cc: Robert Richter
    Cc: Matt Fleming
    Cc: Peter Zijlstra
    Cc: Ingo Molnar
    Signed-off-by: Will Deacon
    Signed-off-by: Robert Richter

    Will Deacon
     

03 Mar, 2010

1 commit

  • bc078e4ea   oprofile: convert oprofile from timer_hook to hrtimer ... Browse Code »

    Oprofile is currently broken on systems running with NOHZ enabled.
    A maximum of 1 tick is accounted via the timer_hook if a cpu sleeps
    for a longer period of time. This does bad things to the percentages
    in the profiler output. To solve this problem convert oprofile to
    use a restarting hrtimer instead of the timer_hook.

    Signed-off-by: Martin Schwidefsky
    Signed-off-by: Robert Richter

    Martin Schwidefsky
     

20 Jul, 2009

6 commits

22 Jan, 2009

1 commit

12 Jan, 2009

1 commit

  • f7df8ed16   cpumask: convert misc driver functions ... Browse Code »

    Impact: use new cpumask API.

    Convert misc driver functions to use struct cpumask.

    To Do:
    - Convert iucv_buffer_cpumask to cpumask_var_t.

    Signed-off-by: Rusty Russell
    Signed-off-by: Mike Travis
    Acked-by: Dean Nelson
    Cc: Robert Richter
    Cc: oprofile-list@lists.sf.net
    Cc: Jeremy Fitzhardinge
    Cc: Chris Wright
    Cc: virtualization@lists.osdl.org
    Cc: xen-devel@lists.xensource.com
    Cc: Ursula Braun
    Cc: linux390@de.ibm.com
    Cc: linux-s390@vger.kernel.org

    Rusty Russell
     

17 Dec, 2008

1 commit

16 Oct, 2008

2 commits

24 Sep, 2008

1 commit

26 Jul, 2008

1 commit

  • 1a960b402   Oprofile Multiplexing Patch ... Browse Code »

    This patch introduces multiplexing support for the Oprofile kernel
    module. It basically adds a new function pointer in oprofile_operator
    allowing each architecture to supply its callback to switch between
    different sets of event when the timer expires. Userspace tools can
    modify the time slice through /dev/oprofile/time_slice.

    It also modifies the number of counters exposed to the userspace through
    /dev/oprofile. For example, the number of counters for AMD CPUs are
    changed to 32 and multiplexed in the sets of 4.

    Signed-off-by: Jason Yeh
    Signed-off-by: Robert Richter
    Cc: oprofile-list
    Signed-off-by: Ingo Molnar

    Jason Yeh
     

21 Jul, 2007

1 commit

  • 1474855d0   [CELL] oprofile: add support to OProfile for profiling CELL BE SPUs ... Browse Code »

    From: Maynard Johnson

    This patch updates the existing arch/powerpc/oprofile/op_model_cell.c
    to add in the SPU profiling capabilities. In addition, a 'cell' subdirectory
    was added to arch/powerpc/oprofile to hold Cell-specific SPU profiling code.
    Exports spu_set_profile_private_kref and spu_get_profile_private_kref which
    are used by OProfile to store private profile information in spufs data
    structures.

    Also incorporated several fixes from other patches (rrn). Check pointer
    returned from kzalloc. Eliminated unnecessary cast. Better error
    handling and cleanup in the related area. 64-bit unsigned long parameter
    was being demoted to 32-bit unsigned int and eventually promoted back to
    unsigned long.

    Signed-off-by: Carl Love
    Signed-off-by: Maynard Johnson
    Signed-off-by: Bob Nelson
    Signed-off-by: Arnd Bergmann
    Acked-by: Paul Mackerras

    Bob Nelson
     

26 Jun, 2006

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds