Khalid Aziz <khalid.aziz@xxxxxxxxxx> writes: > From: Julian Stecklina <jsteckli@xxxxxxxxx> > > Instead of using the page extension debug feature, encode all > information, we need for XPFO in struct page. This allows to get rid of > some checks in the hot paths and there are also no pages anymore that > are allocated before XPFO is enabled. I have another patch lying around that turns the XPFO per-page locks into bit spinlocks and thus get the size of struct page to <= 64 byte again. In case someone's interested, ping me. Julian