lkml.org 
[lkml]   [2007]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] Fix preemptible lazy mode bug
    Rusty Russell wrote:
    > static inline void arch_flush_lazy_mmu_mode(void)
    > {
    > - PVOP_VCALL1(set_lazy_mode, PARAVIRT_LAZY_FLUSH);
    > + if (unlikely(__get_cpu_var(paravirt_lazy_mode) == PARAVIRT_LAZY_MMU))
    > + arch_leave_lazy_mmu_mode();
    > }
    >

    This changes the semantics a bit; previously "flush" would flush
    anything pending but leave us in lazy mode. This just drops lazymode
    altogether?

    I guess if we assume that flushing is a rare event then its OK, but I
    think the name's a bit misleading. How does it differ from plain
    arch_leave_lazy_mmu_mode()?

    J
    -
    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: 2007-09-04 15:45    [W:0.024 / U:59.904 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site