Messages in this thread | | | Date | Wed, 24 Nov 2004 14:15:35 +0200 | From | Avi Kivity <> | Subject | Re: [PATCH] [Request for inclusion] Filesystem in Userspace |
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Alan Cox wrote:
>>I really do believe that user-space filesystems have problems. There's a >>reason we tend to do them in kernel space. >> >>But limiting the outstanding writes some way may at least hide the thing. >> >> > >Possibly dumb question. Is there a reason we can't have a prctl() that >flips the PF_* flags for a user space daemon in the same way as we do >for kernel threads that do I/O processing ? > > > http://lkml.org/lkml/2004/7/26/68
discusses a userspace filesystem (implemented as a userspace nfs server mounted on a loopback nfs mount), the problem, a solution (exactly your suggestion), and a more generic solution.
-- Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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