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    SubjectRe: [PATCH] slabify iocontext + request_queue
    this just went in:

    > From: Jens Axboe <>
    > Move both request_queue and io_context allocation to a slab cache.
    > This is mainly a space-saving exercise. Some setups have a lot of disks
    > and the kmalloc rounding-up can consume significant amounts of memory.

    While I agree on the io_context part, slabifying request_queue is a space
    waste on most machines out there. The averange desktop has less than a
    handfull of these, and even for smaller servers it doesn't exactly look
    like a gain.
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