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SubjectRe: [PATCH] Lightweight userspace semaphores...
> > unlink()
> Sure, but that, together with making up a unique temporary name etc just
> adds extra overhead for no actual gain.

As opposed to adding special cases to the kernel which are unswappable and
stand to tangle up bits of the generic vfs - eg we would have a vma with
a vm_file but that file would not be in the dcache ?

Is it really worth it. For temporary files unix has never adopted a tmpfile()
syscall because nobody has ever found mkstemp() a paticularly critical path
that justified it
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