On Wed, 5 Oct 2022 21:05:55 -0700 ira.weiny@xxxxxxxxx wrote: > kmap_to_page() is used to get the page for a virtual address which may > be kmap'ed. Unfortunately, kmap_local_page() stores mappings in a > thread local array separate from kmap(). These mappings were not > checked by the call. > > Check the kmap_local_page() mappings and return the page if found. > > Because it is intended to remove kmap_to_page() add a warn on once to > the kmap checks to flag potential issues early. What were the user-visible runtime effects of this? Are we able to identify a Fixes:? Thanks.
