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    Subject[PATCH v14 121/138] mm/filemap: Remove PageHWPoison check from next_uptodate_page()
    Date
    Pages are individually marked as suffering from hardware poisoning.
    Checking that the head page is not hardware poisoned doesn't make
    sense; we might be after a subpage. We check each page individually
    before we use it, so this was an optimisation gone wrong.

    Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
    ---
    mm/filemap.c | 2 --
    1 file changed, 2 deletions(-)

    diff --git a/mm/filemap.c b/mm/filemap.c
    index 8510f67dc749..717b0d262306 100644
    --- a/mm/filemap.c
    +++ b/mm/filemap.c
    @@ -3127,8 +3127,6 @@ static struct page *next_uptodate_page(struct page *page,
    goto skip;
    if (!PageUptodate(page) || PageReadahead(page))
    goto skip;
    - if (PageHWPoison(page))
    - goto skip;
    if (!trylock_page(page))
    goto skip;
    if (page->mapping != mapping)
    --
    2.30.2
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