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  • Dan Williams's avatar
    libnvdimm, pmem: 'struct page' for pmem · 32ab0a3f
    Dan Williams authored
    
    
    Enable the pmem driver to handle PFN device instances.  Attaching a pmem
    namespace to a pfn device triggers the driver to allocate and initialize
    struct page entries for pmem.  Memory capacity for this allocation comes
    exclusively from RAM for now which is suitable for low PMEM to RAM
    ratios.  This mechanism will be expanded later for setting an "allocate
    from PMEM" policy.
    
    Cc: Boaz Harrosh <boaz@plexistor.com>
    Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
    Cc: Christoph Hellwig <hch@lst.de>
    Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
    32ab0a3f