On Wed, 2018-03-07 at 15:01 -0800, Andrew Morton wrote: > On Wed, 7 Mar 2018 11:32:27 -0700 Toshi Kani <toshi.kani@xxxxxxx> wrote: > > > Implement pud_free_pmd_page() and pmd_free_pte_page() on x86, which > > clear a given pud/pmd entry and free up lower level page table(s). > > Address range associated with the pud/pmd entry must have been purged > > by INVLPG. > > OK, now we have implementations which match the naming ;) Again, is a > cc:stable warranted? Right. This patch 2/2 fixes the memory leak on x86. Fixes: e61ce6ade404e ("mm: change ioremap to set up huge I/O mappings") Patch 1/2 fixes the panic on arm64. Fixes: 324420bf91f60 ("arm64: add support for ioremap() block mappings") > Do you have any preferences/suggestions as to which tree these should > be merged through? You're hitting core, arm and x86. No, I do not have any preference. Thanks, -Toshi