Messages in this thread | | | Subject | Re: [-mm PATCH] Memory controller improve user interface | From | Dave Hansen <> | Date | Wed, 29 Aug 2007 15:18:14 -0700 |
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On Thu, 2007-08-30 at 03:34 +0530, Balbir Singh wrote: > I've thought about this before. The problem is that a user could > set his limit to 10000 bytes, but would then see the usage and > limit round to the closest page boundary. This can be confusing > to a user.
True, but we're lying if we allow a user to set their limit there, because we can't actually enforce a limit at 8,192 bytes vs 10,000. They're the same limit as far as the kernel is concerned.
Why not just -EINVAL if the value isn't page-aligned? There are plenty of interfaces in the kernel that require userspace to know the page size, so this shouldn't be too difficult.
-- Dave
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