> On Oct 12, 2020, at 9:00 PM, Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> wrote: > > The upcoming THP patchset keeps THPs Uptodate at all times unless we > hit an I/O error. So I have a patch which induces I/O errors in 10% > of readahead I/Os in order to test the fallback path. It hits a > problem with xfstests generic/273 which has 500 threads livelocking > trying to split the THP. This patchset fixes that livelock and > takes 21 lines out of generic_file_buffered_read(). > > Matthew Wilcox (Oracle) (3): > mm: Pass a sleep state to put_and_wait_on_page_locked > mm/filemap: Don't hold a page reference while waiting for unlock > mm: Inline __wait_on_page_locked_async into caller > > include/linux/pagemap.h | 3 +- > mm/filemap.c | 129 +++++++++++++++------------------------- > mm/huge_memory.c | 4 +- > mm/migrate.c | 4 +- > 4 files changed, 52 insertions(+), 88 deletions(-) > > -- > 2.28.0 For the series: Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx>
