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    powerpc/pseries: Use remove_memory() to remove memory · 9ac8cde9
    Nathan Fontenot 提交于
    The memory remove code for powerpc/pseries should call remove_memory()
    so that we are holding the hotplug_memory lock during memory remove
    operations.
    
    This patch updates the memory node remove handler to call remove_memory()
    and adds a ppc_md.remove_memory() entry to handle pseries specific work
    that is called from arch_remove_memory().
    
    During memory remove in pseries_remove_memblock() we have to stay with
    removing memory one section at a time. This is needed because of how memory
    resources are handled. During memory add for pseries (via the probe file in
    sysfs) we add memory one section at a time which gives us a memory resource
    for each section. Future patches will aim to address this so will not have
    to remove memory one section at a time.
    Signed-off-by: NNathan Fontenot <nfont@linux.vnet.ibm.com>
    Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
    9ac8cde9
mem.c 15.0 KB