• Jeremy Fitzhardinge's avatar
    [PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction · d6dd61c8
    Jeremy Fitzhardinge authored
    
    
    Add hooks to allow a paravirt implementation to track the lifetime of
    an mm.  Paravirtualization requires three hooks, but only two are
    needed in common code.  They are:
    
    arch_dup_mmap, which is called when a new mmap is created at fork
    
    arch_exit_mmap, which is called when the last process reference to an
      mm is dropped, which typically happens on exit and exec.
    
    The third hook is activate_mm, which is called from the arch-specific
    activate_mm() macro/function, and so doesn't need stub versions for
    other architectures.  It's called when an mm is first used.
    Signed-off-by: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
    Signed-off-by: default avatarAndi Kleen <ak@suse.de>
    Cc: linux-arch@vger.kernel.org
    Cc: James Bottomley <James.Bottomley@SteelEye.com>
    Acked-by: default avatarIngo Molnar <mingo@elte.hu>
    d6dd61c8
mmu_context.h 1.76 KB