lkml.org 
[lkml]   [2002]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: cmpxchg in 2.5.38
    Hello!

    On Wed, Sep 25, 2002 at 01:00:44AM -0400, Pete Zaitcev wrote:
    > The cmpxchg() is used in kernel/pid.c:next_free_map():
    > It is implemented on alpha, i386, ia64, ppc64, ppc, sparc64,
    > x86_64, but not on mips, cris, arm, s390, s390x, sparc, sh, parisc.
    > Do all architectures have to have it?

    Ingo said that arches that cannot do cmpxchg in hardware should
    provide spinlock-based version.

    Bye,
    Oleg
    -
    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 13:29    [W:0.021 / U:0.348 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site