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To:     Sohil Mehta <sohil.mehta@intel.com>, ira.weiny@intel.com,
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On 6/16/22 12:25, Sohil Mehta wrote:
> Should we have different return error codes when compile support is 
> disabled vs when runtime support is missing?

It doesn't *really* matter.  Programs have to be able to run on old
kernels which will return ENOSYS.  So, _when_ new kernels return ENOSYS
or ENOSPC is pretty immaterial.