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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-12-10 14:46:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-12-10 17:10:55 -0800 |
| commit | 0c941cf30b913d4a684d3f8d9eee60e0daffdc79 (patch) | |
| tree | e8e947137bfffc6d7bdca780cf78da0e81b27b3e | |
| parent | d020d9e63d5396fbcc3a2c01cee38e28c7d20a3d (diff) | |
| download | linux-misc-0c941cf30b913d4a684d3f8d9eee60e0daffdc79.tar.gz | |
filemap: remove PageHWPoison check from next_uptodate_page()
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. It will
cause us to fall back to the slow path when there was no need to do
that
Link: https://lkml.kernel.org/r/20211120174429.2596303-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/filemap.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index daa0e23a6ee66..39c4c46c61337 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -3253,8 +3253,6 @@ 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) |