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Re: posix_fallocate

On Sun, Nov 17, 2013 at 10:33:43AM +0100, Emmanuel Dreyfus wrote:
 > > To answer both you and the Mouse - the difference is that a user process
 > > actually writing data consumes measurable resources, and thus is easy to
 > > find and kill.   When everything happens in the kernel, spotting which
 > > arrantly idle user process is making it happen is not at all easy.
 > We could fork a kernel thread that would go to userspace to do the work
 > with a write() loop, with appropriate credentials. Does it makes sense?

I do not think that makes the slightest sense. Also if you really want
FALLOC_FL_KEEP_SIZE, it won't be adequate.

David A. Holland

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