Hi Oleg, > On Jun 25, 2019, at 4:53 PM, Song Liu <songliubraving@xxxxxx> wrote: > > This set makes uprobe aware of THPs. > > Currently, when uprobe is attached to text on THP, the page is split by > FOLL_SPLIT. As a result, uprobe eliminates the performance benefit of THP. > > This set makes uprobe THP-aware. Instead of FOLL_SPLIT, we introduces > FOLL_SPLIT_PMD, which only split PMD for uprobe. > > TODO (temporarily removed in v7): > After all uprobes within the THP are removed, regroup the PTE-mapped pages > into huge PMD. > > This set (plus a few THP patches) is also available at > > https://github.com/liu-song-6/linux/tree/uprobe-thp > Do you have further comments/suggestions on this work? If not, could you please add your Acked-by or Reviewed-by? Thanks, Song
