• Arjan van de Ven's avatar
    async: Asynchronous function calls to speed up kernel boot · 22a9d645
    Arjan van de Ven authored
    Right now, most of the kernel boot is strictly synchronous, such that
    various hardware delays are done sequentially.
    
    In order to make the kernel boot faster, this patch introduces
    infrastructure to allow doing some of the initialization steps
    asynchronously, which will hide significant portions of the hardware delays
    in practice.
    
    In order to not change device order and other similar observables, this
    patch does NOT do full parallel initialization.
    
    Rather, it operates more in the way an out of order CPU does; the work may
    be done out of order and asynchronous, but the observable effects
    (instruction retiring for the CPU) are still done in the original sequence.
    Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
    22a9d645
do_mounts.c 9.02 KB