On Mon, Jun 24, 2019 at 05:12:41PM -0700, Song Liu wrote: > Currently, filemap_fault() avoids trace condition with truncate by -t > checking page->mapping == mapping. This does not work for compound > pages. This patch let it check compound_head(page)->mapping instead. > > Acked-by: Rik van Riel <riel@xxxxxxxxxxx> > Signed-off-by: Song Liu <songliubraving@xxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>