Eric Lee / smarc-fsl-linux-kernel

15 Apr, 2015

2 commits

  • 26b02a1f9   mm: cma: allocation trigger ... Browse Code »

    Provides a userspace interface to trigger a CMA allocation.

    Usage:

    echo [pages] > alloc

    This would provide testing/fuzzing access to the CMA allocation paths.

    Signed-off-by: Sasha Levin
    Acked-by: Joonsoo Kim
    Cc: Marek Szyprowski
    Cc: Laura Abbott
    Cc: Konrad Rzeszutek Wilk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Sasha Levin
     
  • 28b24c1fc   mm: cma: debugfs interface ... Browse Code »

    I've noticed that there is no interfaces exposed by CMA which would let me
    fuzz what's going on in there.

    This small patchset exposes some information out to userspace, plus adds
    the ability to trigger allocation and freeing from userspace.

    This patch (of 3):

    Implement a simple debugfs interface to expose information about CMA areas
    in the system.

    Useful for testing/sanity checks for CMA since it was impossible to
    previously retrieve this information in userspace.

    Signed-off-by: Sasha Levin
    Acked-by: Joonsoo Kim
    Cc: Marek Szyprowski
    Cc: Laura Abbott
    Cc: Konrad Rzeszutek Wilk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Sasha Levin