• Tejun Heo's avatar
    blkcg: remove static policy ID enums · 8bd435b3
    Tejun Heo authored
    Remove BLKIO_POLICY_* enums and let blkio_policy_register() allocate
    @pol->plid dynamically on registration.  The maximum number of blkcg
    policies which can be registered at the same time is defined by
    BLKCG_MAX_POLS constant added to include/linux/blkdev.h.
    Note that blkio_policy_register() now may fail.  Policy init functions
    updated accordingly and unnecessary ifdefs removed from cfq_init().
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    Cc: Vivek Goyal <vgoyal@redhat.com>
    Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>