lkml.org 
[lkml]   [2002]   [Feb]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [PATCH] only irq-safe atomic ops
    From
    Date
    On Sat, 2002-02-23 at 17:10, Andrew Morton wrote:

    > ooh. me likee.
    >
    > #define smp_get_cpuid() ({ preempt_disable(); smp_processor_id(); })
    > #define smp_put_cpuid() preempt_enable()
    >
    > Does rml likee?

    Yah, that works.

    All we need to do is wrap the smp_processor_id references (however many
    - it does not matter) in preempt_disable ... preempt_enable. This does
    that cleanly.

    Robert Love

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:24    [W:0.021 / U:0.468 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site