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    SubjectRe: [PATCH v1] Revert "mm: kmemleak: alloc gray object for reserved region with direct map"
    On Tue, Jan 24, 2023 at 03:02:54PM -0800, Isaac J. Manjarres wrote:
    > This reverts commit 972fa3a7c17c9d60212e32ecc0205dc585b1e769.
    >
    > Kmemleak operates by periodically scanning memory regions for pointers
    > to allocated memory blocks to determine if they are leaked or not.
    > However, reserved memory regions can be used for DMA transactions
    > between a device and a CPU, and thus, wouldn't contain pointers to
    > allocated memory blocks, making them inappropriate for kmemleak to
    > scan. Thus, revert this commit.
    >
    > Cc: stable@vger.kernel.org # 5.17+
    > Cc: Calvin Zhang <calvinzhang.cool@gmail.com>
    > Signed-off-by: Isaac J. Manjarres <isaacmanjarres@google.com>

    Acked-by: Catalin Marinas <catalin.marinas@arm.com>

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