On Wed, Apr 01, 2009 at 10:31:14PM -0700, Chris Wright wrote: > - register only ATM, can add MADV_UNSHAREABLE to allow an app to proactively > unregister, but need a cleanup when ->mm goes away via exit/exec The unregister cleanup must happen at the vma level (with unregister when vma goes away or is overwritten) for this to provide sane madvise semantics (not just in exit/exec, but in unmap/mmap too). Otherwise this is all but madvise. Basically we need a chunk of code in core VM when KSM=y/m, even if we keep returning -EINVAL when KSM=n (for backwards compatibility, -ENOSYS not). Example, vma must be split in two if you MAP_SHARABLE only part of it etc... -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
