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    SubjectRe: [PATCH] [Request for inclusion] Filesystem in Userspace

    > The GFP_IO and GFP_FS pages are the _real_ protectors. They don't dip into
    > the (very limited) set of pages, they say "we can still free 90% of
    > memory, we just have to ignore that dangerous 10%".

    I don't see how this makes more problems to userspace filesystems.
    When you clear GFP_IO or GFP_FS for an allocation you are limiting
    yourself from freeing some sort of memory. But that will not make it
    easier to actually _get_ that memory.

    With FUSE the allocation is NOT limited. Deadlock will not happen
    since page writeback is non-blocking, so while more FUSE backed pages
    can't be written, other filesystem's pages can be written back. The
    situation is better not worse.

    What am I missing?

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