lkml.org 
[lkml]   [2010]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[tip:timers/core] timers: Use this_cpu_read
    Commit-ID:  7496351ad87e61e96b49dd7b43c6534e3401f566
    Gitweb: http://git.kernel.org/tip/7496351ad87e61e96b49dd7b43c6534e3401f566
    Author: Christoph Lameter <cl@linux.com>
    AuthorDate: Tue, 30 Nov 2010 14:05:53 -0600
    Committer: Thomas Gleixner <tglx@linutronix.de>
    CommitDate: Sun, 12 Dec 2010 18:38:09 +0100

    timers: Use this_cpu_read

    Eric asked for this.

    [tglx: Because it generates faster code according to Erics ]

    Signed-off-by: Christoph Lameter <cl@linux.com>
    Cc: Pekka Enberg <penberg@cs.helsinki.fi>
    Cc: Eric Dumazet <eric.dumazet@gmail.com>
    Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
    Cc: Tejun Heo <tj@kernel.org>
    Cc: linux-mm@kvack.org
    LKML-Reference: <alpine.DEB.2.00.1011301404490.4039@router.home>
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

    ---
    kernel/timer.c | 4 ++--
    1 files changed, 2 insertions(+), 2 deletions(-)

    diff --git a/kernel/timer.c b/kernel/timer.c
    index 483e54b..beb97fd 100644
    --- a/kernel/timer.c
    +++ b/kernel/timer.c
    @@ -1227,7 +1227,7 @@ static unsigned long cmp_next_hrtimer_event(unsigned long now,
    */
    unsigned long get_next_timer_interrupt(unsigned long now)
    {
    - struct tvec_base *base = __get_cpu_var(tvec_bases);
    + struct tvec_base *base = __this_cpu_read(tvec_bases);
    unsigned long expires;

    spin_lock(&base->lock);
    @@ -1267,7 +1267,7 @@ void update_process_times(int user_tick)
    */
    static void run_timer_softirq(struct softirq_action *h)
    {
    - struct tvec_base *base = __get_cpu_var(tvec_bases);
    + struct tvec_base *base = __this_cpu_read(tvec_bases);

    hrtimer_run_pending();


    \
     
     \ /
      Last update: 2010-12-12 18:45    [W:0.023 / U:0.052 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site