• Andrew Morton's avatar
    [PATCH] ppc64: Convert mm_context_t to a struct · 5b9c017d
    Andrew Morton authored
    From: David Gibson <david@gibson.dropbear.id.au>
    
    Converts the mm_context_t on ppc64 to be a struct.  This lets us separate
    the low_hpages flag into a separate field rather than folding it into the
    actual context id.  That makes things neater, since the flag is
    conceptually separate and has, for example, should be propogate across a
    fork whereas the context ID obviously isn't.  The mm_context_id is the only
    place to put arch-specific information in the mm_struct.
    
    This patch will also make some interesting extensions to the hugepage
    support much easier, such as allowing dynamic resizing of the hugepage
    address space, or using special pagetables for hugepages.
    5b9c017d
mmu.h 12.5 KB