[lkml]   [2010]   [Mar]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [patch] slab: add memory hotplug support
    On Tue, 2 Mar 2010, Christoph Lameter wrote:

    > Not sure how this would sync with slab use during node bootstrap and
    > shutdown. Kame-san?

    All the nodelist allocation and initialization is done during
    MEM_GOING_ONLINE, so there should be no use of them until that
    notification cycle is done and it has graduated to MEM_ONLINE: if there
    are, there're even bigger problems because zonelist haven't even been
    built for that pgdat yet. I can only speculate, but since Andi's
    patchset did all this during MEM_ONLINE, where the bit is already set in
    node_states[N_HIGH_MEMORY] and is passable to kmalloc_node(), this is
    probably why additional hacks had to be added elsewhere.

    Other than that, concurrent kmem_cache_create() is protected by

     \ /
      Last update: 2010-03-02 22:05    [W:0.021 / U:5.020 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site