Eric Lee / smarc-fsl-linux-kernel

30 May, 2012

1 commit

  • 2bb2ba9d5   rescounters: add res_counter_uncharge_until() ... Browse Code »

    When killing a res_counter which is a child of other counter, we need to
    do

    res_counter_uncharge(child, xxx)
    res_counter_charge(parent, xxx)

    This is not atomic and wastes CPU. This patch adds
    res_counter_uncharge_until(). This function's uncharge propagates to
    ancestors until specified res_counter.

    res_counter_uncharge_until(child, parent, xxx)

    Now the operation is atomic and efficient.

    Signed-off-by: Frederic Weisbecker
    Signed-off-by: KAMEZAWA Hiroyuki
    Cc: Aneesh Kumar K.V
    Cc: Michal Hocko
    Cc: Johannes Weiner
    Cc: Ying Han
    Cc: Glauber Costa
    Reviewed-by: Tejun Heo
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Frederic Weisbecker
     

28 Apr, 2012

1 commit

  • 4d8438f04   res_counter: Merge res_counter_charge and res_counter_charge_nofail ... Browse Code »

    These two functions do almost the same thing and duplicate some code.
    Merge their implementation into a single common function.
    res_counter_charge_locked() takes one more parameter but it doesn't seem
    to be used outside res_counter.c yet anyway.

    There is no (intended) change in the behaviour.

    Signed-off-by: Frederic Weisbecker
    Signed-off-by: Tejun Heo
    Acked-by: KAMEZAWA Hiroyuki
    Acked-by: Glauber Costa
    Acked-by: Kirill A. Shutemov
    Cc: Li Zefan

    Frederic Weisbecker
     

14 Apr, 2009

1 commit

  • 5341cfab9   res_counter: update documentation ... Browse Code »

    After the introduction of resource counters hierarchies
    (28dbc4b6a01fb579a9441c7b81e3d3413dc452df) the prototypes of
    res_counter_init() and res_counter_charge() have been changed.

    Keep the documentation consistent with the actual function prototypes.

    Signed-off-by: Andrea Righi
    Cc: Paul Menage
    Cc: Pavel Emelyanov
    Cc: Balbir Singh
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrea Righi
     

16 Jan, 2009

1 commit

  • 45ce80fb6   cgroups: consolidate cgroup documents ... Browse Code »

    Move Documentation/cpusets.txt and Documentation/controllers/* to
    Documentation/cgroups/

    Signed-off-by: Li Zefan
    Acked-by: KAMEZAWA Hiroyuki
    Acked-by: Balbir Singh
    Acked-by: Paul Menage
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Li Zefan