Eric Lee / smarc-ti-linux-kernel

09 Feb, 2008

1 commit

  • 48d13e483   Don't operate with pid_t in rtmutex tester ... Browse Code »

    The proper behavior to store task's pid and get this task later is to get the
    struct pid pointer and get the task with the pid_task() call.

    Make it for rt_mutex_waiter->deadlock_task_pid field.

    Signed-off-by: Pavel Emelyanov
    Cc: "Eric W. Biederman"
    Cc: Ingo Molnar
    Cc: Thomas Gleixner
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Emelyanov
     

20 Oct, 2007

1 commit

  • ba25f9dcc   Use helpers to obtain task pid in printks ... Browse Code »

    The task_struct->pid member is going to be deprecated, so start
    using the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in
    the kernel.

    The first thing to start with is the pid, printed to dmesg - in
    this case we may safely use task_pid_nr(). Besides, printks produce
    more (much more) than a half of all the explicit pid usage.

    [akpm@linux-foundation.org: git-drm went and changed lots of stuff]
    Signed-off-by: Pavel Emelyanov
    Cc: Dave Airlie
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Pavel Emelyanov
     

17 Oct, 2007

1 commit

  • a4d63e729   kernel/rtmutex-debug.c: cleanups ... Browse Code »

    This patch contains the following cleanups:
    - make the needlessly global variable rt_trace_on static
    - remove the unused global function deadlock_trace_off()

    Signed-off-by: Adrian Bunk
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

17 Jul, 2007

1 commit

  • 36cf3b5c3   FUTEX: Tidy up the code ... Browse Code »

    The recent PRIVATE and REQUEUE_PI changes to the futex code made it hard to
    read. Tidy it up.

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

    Thomas Gleixner
     

04 Oct, 2006

1 commit

04 Jul, 2006

2 commits

  • 36c8b5868   [PATCH] sched: cleanup, remove task_t, convert to struct task_struct ... Browse Code »

    cleanup: remove task_t and convert all the uses to struct task_struct. I
    introduced it for the scheduler anno and it was a mistake.

    Conversion was mostly scripted, the result was reviewed and all
    secondary whitespace and style impact (if any) was fixed up by hand.

    Signed-off-by: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     
  • 9a11b49a8   [PATCH] lockdep: better lock debugging ... Browse Code »
    13

    Generic lock debugging:

    - generalized lock debugging framework. For example, a bug in one lock
    subsystem turns off debugging in all lock subsystems.

    - got rid of the caller address passing (__IP__/__IP_DECL__/etc.) from
    the mutex/rtmutex debugging code: it caused way too much prototype
    hackery, and lockdep will give the same information anyway.

    - ability to do silent tests

    - check lock freeing in vfree too.

    - more finegrained debugging options, to allow distributions to
    turn off more expensive debugging features.

    There's no separate 'held mutexes' list anymore - but there's a 'held locks'
    stack within lockdep, which unifies deadlock detection across all lock
    classes. (this is independent of the lockdep validation stuff - lockdep first
    checks whether we are holding a lock already)

    Here are the current debugging options:

    CONFIG_DEBUG_MUTEXES=y
    CONFIG_DEBUG_LOCK_ALLOC=y

    which do:

    config DEBUG_MUTEXES
    bool "Mutex debugging, basic checks"

    config DEBUG_LOCK_ALLOC
    bool "Detect incorrect freeing of live mutexes"

    Signed-off-by: Ingo Molnar
    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     

28 Jun, 2006

1 commit