On Fri, 5 Jun 2020 17:11:05 +0800 Bibo Mao <maobibo@xxxxxxxxxxx> wrote: > On MIPS system which has rixi hardware bit, page access bit is not > set in pgrot. For memory reading, there will be one page fault to > allocate physical page; however valid bit is not set, there will > be the second fast tlb-miss fault handling to set valid/access bit. > > This patch set page access/valid bit with pgrot if there is reading > access privilege. It will reduce one tlb-miss handling for memory > reading access. > > The valid/access bit will be cleared in order to track memory > accessing activity. If the page is accessed, tlb-miss fast handling > will set valid/access bit, pte_sw_mkyoung is not necessary in slow > page fault path. This patch removes pte_sw_mkyoung function which > is defined as empty function except MIPS system. > > Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx> > --- Thanks for tracking it down. Could you please make the patch tittle more clear? "Some" looks confuse to me, "systems with RIXI" would be better. - Jiaxun
