Messages in this thread | | | Date | Mon, 12 Nov 2012 13:53:36 -0800 (PST) | From | David Rientjes <> | Subject | RE: [PATCH 1/1] mm: Export a function to read vm_committed_as |
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On Sun, 11 Nov 2012, KY Srinivasan wrote:
> Thanks for the prompt response. For the Linux balloon driver for Hyper-V, I need access > to the metric that reflects the system wide memory commitment made by the guest kernel. > In the Hyper-V case, this information is one of the many metrics used to drive the policy engine > on the host. Granted, the interface name I have chosen here could be more generic; how about > read_mem_commit_info(void). I am open to suggestions here. >
I would suggest vm_memory_committed() and there shouldn't be a comment describing that this is just a wrapper for modules to read vm_committed_as, that's apparent from the implementation: it should be describing exactly what this value represents and why it is a useful metric (at least in the case that you're concerned about).
> With regards to making changes to the Xen self ballooning code, I would like to separate that patch > from the patch that implements the exported mechanism to access the memory commitment information.
Why? Is xen using it for a different inference?
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