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    Subject[PATCH -next v3 0/5] Delay the initializaton of zswap
    Date
    In the initialization of zswap, about 18MB memory will be allocated for       
    zswap_pool. Since not all users use zswap, the memory may be wasted. Save
    the memory for these users by delaying the initialization of zswap to
    first enablement.

    v2->v3: Fix frontswap_ops NULL reported by Nathan and add init for online
    swap device in backend register.
    v1->v2: Change init_zswap to zswap_init suggested by Andrew.

    Liu Shixin (5):
    frontswap: skip frontswap_ops init if zswap init failed.
    frontswap: invoke ops->init for online swap device in
    frontswap_register_ops
    mm/zswap: replace zswap_init_{started/failed} with zswap_init_state
    mm/zswap: delay the initializaton of zswap until the first enablement
    mm/zswap: skip confusing print info

    include/linux/swapfile.h | 2 ++
    mm/frontswap.c | 50 +++++++++++++++++++++++++-
    mm/swapfile.c | 4 +--
    mm/zswap.c | 77 ++++++++++++++++++++++++++++++----------
    4 files changed, 111 insertions(+), 22 deletions(-)

    --
    2.25.1

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