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    SubjectRe: Do ramdisk exec's map direct to buffer cache?
    On Wed, Jul 19, 2000 at 04:29:29PM -0700, Linus Torvalds wrote:

    > At least cramfs works. I have about ten reports of loopback not working
    > lately, and I'm likely to disable it completely unless somebody steps in
    > to maintain the damn thing.

    I think it really needs to be maintained alongside the block device/buffer
    cache/page cache layers, as it's a pretty special case. Allocating resources
    from a device's do_request function is always going to be fragile, because
    of the number of places where we start I/O to free things (buffer memory,
    buffer heads, requests..).

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