[lkml]   [2002]   [Feb]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [RFC] New locking primitive for 2.5
    On Thu, Feb 07, 2002 at 01:40:59PM -0500, Robert Love wrote:
    > > To really take any benefit from a preemptible kernel a lot of spin locks
    > > will have to be replaced by mutex locks. The combi-lock approach may
    > > convince more people who typically fear the higher scheduling pressure
    > > of sleeping locks to do so, if they can decide on each instance which
    > > approach (spin of sleep) will be taken.
    > We shouldn't engage in wholesale changing of spinlocks to semaphores
    > without a priority-inheritance mechanism. And _that_ is the bigger
    > issue ...

    Cool. We can then have the Solaris "this usually doesn't fail on test" priority
    inherit read/write lock. I can hardly wait.

    Victor Yodaiken
    Finite State Machine Labs: The RTLinux Company.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:24    [W:0.022 / U:41.668 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site